mirror of https://github.com/etcd-io/dbtester.git
*: sync with etcd master
This commit is contained in:
parent
2e89ad5f23
commit
9b92ce04d6
|
|
@ -18,10 +18,6 @@
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|||
"Comment": "go.weekly.2012-01-27-130-g672fe54",
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||||
"Rev": "672fe547df4e49efc6db67a74391368bcb149b37"
|
||||
},
|
||||
{
|
||||
"ImportPath": "github.com/bkaradzic/go-lz4",
|
||||
"Rev": "74ddf82598bc4745b965729e9c6a463bedd33049"
|
||||
},
|
||||
{
|
||||
"ImportPath": "github.com/cheggaaa/pb",
|
||||
"Comment": "v1.0.2-4-g8808370",
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||||
|
|
@ -29,53 +25,48 @@
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|||
},
|
||||
{
|
||||
"ImportPath": "github.com/coreos/etcd/auth/authpb",
|
||||
"Comment": "v2.3.0-646-gf383235",
|
||||
"Rev": "f383235c3384f50360061b7ee86fa40c323a8e08"
|
||||
"Comment": "v2.3.0-664-gb776153",
|
||||
"Rev": "b7761530e1d5b9f404811d63786df60023a88db9"
|
||||
},
|
||||
{
|
||||
"ImportPath": "github.com/coreos/etcd/client",
|
||||
"Comment": "v2.3.0-646-gf383235",
|
||||
"Rev": "f383235c3384f50360061b7ee86fa40c323a8e08"
|
||||
"Comment": "v2.3.0-664-gb776153",
|
||||
"Rev": "b7761530e1d5b9f404811d63786df60023a88db9"
|
||||
},
|
||||
{
|
||||
"ImportPath": "github.com/coreos/etcd/clientv3",
|
||||
"Comment": "v2.3.0-646-gf383235",
|
||||
"Rev": "f383235c3384f50360061b7ee86fa40c323a8e08"
|
||||
"Comment": "v2.3.0-664-gb776153",
|
||||
"Rev": "b7761530e1d5b9f404811d63786df60023a88db9"
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||||
},
|
||||
{
|
||||
"ImportPath": "github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes",
|
||||
"Comment": "v2.3.0-646-gf383235",
|
||||
"Rev": "f383235c3384f50360061b7ee86fa40c323a8e08"
|
||||
"Comment": "v2.3.0-664-gb776153",
|
||||
"Rev": "b7761530e1d5b9f404811d63786df60023a88db9"
|
||||
},
|
||||
{
|
||||
"ImportPath": "github.com/coreos/etcd/etcdserver/etcdserverpb",
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||||
"Comment": "v2.3.0-646-gf383235",
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||||
"Rev": "f383235c3384f50360061b7ee86fa40c323a8e08"
|
||||
"Comment": "v2.3.0-664-gb776153",
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||||
"Rev": "b7761530e1d5b9f404811d63786df60023a88db9"
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||||
},
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||||
{
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||||
"ImportPath": "github.com/coreos/etcd/mvcc/mvccpb",
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||||
"Comment": "v2.3.0-646-gf383235",
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||||
"Rev": "f383235c3384f50360061b7ee86fa40c323a8e08"
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||||
},
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||||
{
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"ImportPath": "github.com/coreos/etcd/pkg/compress",
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||||
"Comment": "v2.3.0-646-gf383235",
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||||
"Rev": "f383235c3384f50360061b7ee86fa40c323a8e08"
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||||
"Comment": "v2.3.0-664-gb776153",
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||||
"Rev": "b7761530e1d5b9f404811d63786df60023a88db9"
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||||
},
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||||
{
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||||
"ImportPath": "github.com/coreos/etcd/pkg/pathutil",
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||||
"Comment": "v2.3.0-646-gf383235",
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||||
"Rev": "f383235c3384f50360061b7ee86fa40c323a8e08"
|
||||
"Comment": "v2.3.0-664-gb776153",
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||||
"Rev": "b7761530e1d5b9f404811d63786df60023a88db9"
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||||
},
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||||
{
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||||
"ImportPath": "github.com/coreos/etcd/pkg/tlsutil",
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||||
"Comment": "v2.3.0-646-gf383235",
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||||
"Rev": "f383235c3384f50360061b7ee86fa40c323a8e08"
|
||||
"Comment": "v2.3.0-664-gb776153",
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||||
"Rev": "b7761530e1d5b9f404811d63786df60023a88db9"
|
||||
},
|
||||
{
|
||||
"ImportPath": "github.com/coreos/etcd/pkg/types",
|
||||
"Comment": "v2.3.0-646-gf383235",
|
||||
"Rev": "f383235c3384f50360061b7ee86fa40c323a8e08"
|
||||
"Comment": "v2.3.0-664-gb776153",
|
||||
"Rev": "b7761530e1d5b9f404811d63786df60023a88db9"
|
||||
},
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||||
{
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||||
"ImportPath": "github.com/cpuguy83/go-md2man/md2man",
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|
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@ -129,10 +120,6 @@
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|||
"ImportPath": "github.com/golang/protobuf/proto",
|
||||
"Rev": "6aaa8d47701fa6cf07e914ec01fde3d4a1fe79c3"
|
||||
},
|
||||
{
|
||||
"ImportPath": "github.com/golang/snappy",
|
||||
"Rev": "43fea289edce21979658cbbdb3925390890aa86e"
|
||||
},
|
||||
{
|
||||
"ImportPath": "github.com/gonum/floats",
|
||||
"Rev": "856ee8119ad91596c5394fa0a5c0470b6f16e676"
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||||
|
|
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|||
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@ -29,7 +29,7 @@ import (
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log "github.com/Sirupsen/logrus"
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"github.com/coreos/dbtester/remotestorage"
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"github.com/coreos/etcd/pkg/compress"
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// "github.com/coreos/etcd/pkg/compress"
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"github.com/gyuho/psn/ps"
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"github.com/spf13/cobra"
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"golang.org/x/net/context"
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|
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@ -244,13 +244,13 @@ func (t *transporterServer) Transfer(ctx context.Context, r *Request) (*Response
|
|||
"--initial-cluster", clusterStr,
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"--initial-cluster-state", "new",
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||||
}
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||||
if t.req.EtcdCompression != "" {
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||||
if compress.ParseType(t.req.EtcdCompression) != compress.NoCompress {
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||||
flags = append(flags,
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||||
"--experimental-compression", t.req.EtcdCompression,
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||||
)
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||||
}
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||||
}
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// if t.req.EtcdCompression != "" {
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// if compress.ParseType(t.req.EtcdCompression) != compress.NoCompress {
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// flags = append(flags,
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// "--experimental-compression", t.req.EtcdCompression,
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// )
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||||
// }
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||||
// }
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flagString := strings.Join(flags, " ")
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||||
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cmd := exec.Command(etcdBinaryPath, flags...)
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|
|
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|||
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@ -37,7 +37,7 @@ type Config struct {
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|||
AgentEndpoints []string
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DatabaseEndpoints []string
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// cgzip, cgzip-lv2, gzip, snappy, snappy-cpp
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// snappy
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EtcdCompression string `yaml:"etcd_compression"`
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||||
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Step1 struct {
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||||
|
|
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@ -145,7 +145,7 @@ func step1(cfg Config) error {
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|||
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req.ZookeeperMaxClientCnxns = cfg.Step1.ZookeeperMaxClientCnxns
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||||
req.ZookeeperSnapCount = cfg.Step1.ZookeeperSnapCount
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||||
req.EtcdCompression = cfg.EtcdCompression
|
||||
// req.EtcdCompression = cfg.EtcdCompression
|
||||
|
||||
donec, errc := make(chan struct{}), make(chan error)
|
||||
for i := range cfg.PeerIPs {
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||||
|
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@ -248,8 +248,8 @@ func step2(cfg Config) error {
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|||
}
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||||
|
||||
case "etcdv3":
|
||||
etcdClients = mustCreateClientsEtcdv3(cfg.DatabaseEndpoints, cfg.Step2.Clients, cfg.Step2.Connections, cfg.EtcdCompression)
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||||
// etcdClients = mustCreateClientsEtcdv3(cfg.DatabaseEndpoints, cfg.Step2.Clients, cfg.Step2.Connections)
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||||
// etcdClients = mustCreateClientsEtcdv3(cfg.DatabaseEndpoints, cfg.Step2.Clients, cfg.Step2.Connections, cfg.EtcdCompression)
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etcdClients = mustCreateClientsEtcdv3(cfg.DatabaseEndpoints, cfg.Step2.Clients, cfg.Step2.Connections)
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for i := range etcdClients {
|
||||
wg.Add(1)
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||||
go doPutEtcdv3(context.Background(), etcdClients[i], requests)
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||||
|
|
@ -382,8 +382,8 @@ func step2(cfg Config) error {
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|||
log.Printf("PUT '%s' to etcd", key)
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var err error
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for i := 0; i < 5; i++ {
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clients := mustCreateClientsEtcdv3(cfg.DatabaseEndpoints, 1, 1, cfg.EtcdCompression)
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// clients := mustCreateClientsEtcdv3(cfg.DatabaseEndpoints, 1, 1)
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// clients := mustCreateClientsEtcdv3(cfg.DatabaseEndpoints, 1, 1, cfg.EtcdCompression)
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clients := mustCreateClientsEtcdv3(cfg.DatabaseEndpoints, 1, 1)
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_, err = clients[0].Do(context.Background(), clientv3.OpPut(key, value))
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if err != nil {
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continue
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|
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@ -447,8 +447,8 @@ func step2(cfg Config) error {
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}
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|
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case "etcdv3":
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clients := mustCreateClientsEtcdv3(cfg.DatabaseEndpoints, cfg.Step2.Clients, cfg.Step2.Connections, cfg.EtcdCompression)
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// clients := mustCreateClientsEtcdv3(cfg.DatabaseEndpoints, cfg.Step2.Clients, cfg.Step2.Connections)
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// clients := mustCreateClientsEtcdv3(cfg.DatabaseEndpoints, cfg.Step2.Clients, cfg.Step2.Connections, cfg.EtcdCompression)
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clients := mustCreateClientsEtcdv3(cfg.DatabaseEndpoints, cfg.Step2.Clients, cfg.Step2.Connections)
|
||||
for i := range clients {
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wg.Add(1)
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||||
go doRangeEtcdv3(clients[i].KV, requests)
|
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|
|
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|||
|
|
@ -36,7 +36,7 @@ import (
|
|||
|
||||
clientv2 "github.com/coreos/etcd/client"
|
||||
"github.com/coreos/etcd/clientv3"
|
||||
"github.com/coreos/etcd/pkg/compress"
|
||||
// "github.com/coreos/etcd/pkg/compress"
|
||||
"github.com/dustin/go-humanize"
|
||||
consulapi "github.com/hashicorp/consul/api"
|
||||
"github.com/samuel/go-zookeeper/zk"
|
||||
|
|
@ -75,13 +75,13 @@ var (
|
|||
dialTotal int
|
||||
)
|
||||
|
||||
func mustCreateConnEtcdv3(endpoints []string, compressType compress.Type) *clientv3.Client {
|
||||
// func mustCreateConnEtcdv3(endpoints []string) *clientv3.Client {
|
||||
// func mustCreateConnEtcdv3(endpoints []string, compressType compress.Type) *clientv3.Client {
|
||||
func mustCreateConnEtcdv3(endpoints []string) *clientv3.Client {
|
||||
endpoint := endpoints[dialTotal%len(endpoints)]
|
||||
dialTotal++
|
||||
cfg := clientv3.Config{
|
||||
Endpoints: []string{endpoint},
|
||||
CompressType: compressType,
|
||||
// CompressType: compressType,
|
||||
}
|
||||
client, err := clientv3.New(cfg)
|
||||
if err != nil {
|
||||
|
|
@ -91,12 +91,12 @@ func mustCreateConnEtcdv3(endpoints []string, compressType compress.Type) *clien
|
|||
return client
|
||||
}
|
||||
|
||||
func mustCreateClientsEtcdv3(endpoints []string, totalClients, totalConns int, compressionTypeTxt string) []*clientv3.Client {
|
||||
// func mustCreateClientsEtcdv3(endpoints []string, totalClients, totalConns int) []*clientv3.Client {
|
||||
// func mustCreateClientsEtcdv3(endpoints []string, totalClients, totalConns int, compressionTypeTxt string) []*clientv3.Client {
|
||||
func mustCreateClientsEtcdv3(endpoints []string, totalClients, totalConns int) []*clientv3.Client {
|
||||
conns := make([]*clientv3.Client, totalConns)
|
||||
for i := range conns {
|
||||
conns[i] = mustCreateConnEtcdv3(endpoints, compress.ParseType(compressionTypeTxt))
|
||||
// conns[i] = mustCreateConnEtcdv3(endpoints)
|
||||
// conns[i] = mustCreateConnEtcdv3(endpoints, compress.ParseType(compressionTypeTxt))
|
||||
conns[i] = mustCreateConnEtcdv3(endpoints)
|
||||
}
|
||||
|
||||
clients := make([]*clientv3.Client, totalClients)
|
||||
|
|
|
|||
|
|
@ -1 +0,0 @@
|
|||
/lz4-example/lz4-example
|
||||
|
|
@ -1,9 +0,0 @@
|
|||
language: go
|
||||
|
||||
go:
|
||||
- 1.1
|
||||
- 1.2
|
||||
- 1.3
|
||||
- 1.4
|
||||
- 1.5
|
||||
- tip
|
||||
|
|
@ -1,24 +0,0 @@
|
|||
Copyright 2011-2012 Branimir Karadzic. All rights reserved.
|
||||
Copyright 2013 Damian Gryski. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without modification,
|
||||
are permitted provided that the following conditions are met:
|
||||
|
||||
1. Redistributions of source code must retain the above copyright notice, this
|
||||
list of conditions and the following disclaimer.
|
||||
|
||||
2. Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR
|
||||
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
|
||||
SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
|
||||
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
||||
THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
|
|
@ -1,71 +0,0 @@
|
|||
go-lz4
|
||||
======
|
||||
|
||||
go-lz4 is port of LZ4 lossless compression algorithm to Go. The original C code
|
||||
is located at:
|
||||
|
||||
https://github.com/Cyan4973/lz4
|
||||
|
||||
Status
|
||||
------
|
||||
[](http://travis-ci.org/bkaradzic/go-lz4)
|
||||
[](https://godoc.org/github.com/bkaradzic/go-lz4)
|
||||
|
||||
Usage
|
||||
-----
|
||||
|
||||
go get github.com/bkaradzic/go-lz4
|
||||
|
||||
import "github.com/bkaradzic/go-lz4"
|
||||
|
||||
The package name is `lz4`
|
||||
|
||||
Notes
|
||||
-----
|
||||
|
||||
* go-lz4 saves a uint32 with the original uncompressed length at the beginning
|
||||
of the encoded buffer. They may get in the way of interoperability with
|
||||
other implementations.
|
||||
|
||||
Contributors
|
||||
------------
|
||||
|
||||
Damian Gryski ([@dgryski](https://github.com/dgryski))
|
||||
Dustin Sallings ([@dustin](https://github.com/dustin))
|
||||
|
||||
Contact
|
||||
-------
|
||||
|
||||
[@bkaradzic](https://twitter.com/bkaradzic)
|
||||
http://www.stuckingeometry.com
|
||||
|
||||
Project page
|
||||
https://github.com/bkaradzic/go-lz4
|
||||
|
||||
License
|
||||
-------
|
||||
|
||||
Copyright 2011-2012 Branimir Karadzic. All rights reserved.
|
||||
Copyright 2013 Damian Gryski. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without modification,
|
||||
are permitted provided that the following conditions are met:
|
||||
|
||||
1. Redistributions of source code must retain the above copyright notice, this
|
||||
list of conditions and the following disclaimer.
|
||||
|
||||
2. Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR
|
||||
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
|
||||
SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
|
||||
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
||||
THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
|
|
@ -1,23 +0,0 @@
|
|||
// +build gofuzz
|
||||
|
||||
package lz4
|
||||
|
||||
import "encoding/binary"
|
||||
|
||||
func Fuzz(data []byte) int {
|
||||
|
||||
if len(data) < 4 {
|
||||
return 0
|
||||
}
|
||||
|
||||
ln := binary.LittleEndian.Uint32(data)
|
||||
if ln > (1 << 21) {
|
||||
return 0
|
||||
}
|
||||
|
||||
if _, err := Decode(nil, data); err != nil {
|
||||
return 0
|
||||
}
|
||||
|
||||
return 1
|
||||
}
|
||||
|
|
@ -1,199 +0,0 @@
|
|||
/*
|
||||
* Copyright 2011-2012 Branimir Karadzic. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without modification,
|
||||
* are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||
* this list of conditions and the following disclaimer in the documentation
|
||||
* and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
|
||||
* SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
|
||||
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
||||
* THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
package lz4
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"errors"
|
||||
"io"
|
||||
)
|
||||
|
||||
var (
|
||||
// ErrCorrupt indicates the input was corrupt
|
||||
ErrCorrupt = errors.New("corrupt input")
|
||||
)
|
||||
|
||||
const (
|
||||
mlBits = 4
|
||||
mlMask = (1 << mlBits) - 1
|
||||
runBits = 8 - mlBits
|
||||
runMask = (1 << runBits) - 1
|
||||
)
|
||||
|
||||
type decoder struct {
|
||||
src []byte
|
||||
dst []byte
|
||||
spos uint32
|
||||
dpos uint32
|
||||
ref uint32
|
||||
}
|
||||
|
||||
func (d *decoder) readByte() (uint8, error) {
|
||||
if int(d.spos) == len(d.src) {
|
||||
return 0, io.EOF
|
||||
}
|
||||
b := d.src[d.spos]
|
||||
d.spos++
|
||||
return b, nil
|
||||
}
|
||||
|
||||
func (d *decoder) getLen() (uint32, error) {
|
||||
|
||||
length := uint32(0)
|
||||
ln, err := d.readByte()
|
||||
if err != nil {
|
||||
return 0, ErrCorrupt
|
||||
}
|
||||
for ln == 255 {
|
||||
length += 255
|
||||
ln, err = d.readByte()
|
||||
if err != nil {
|
||||
return 0, ErrCorrupt
|
||||
}
|
||||
}
|
||||
length += uint32(ln)
|
||||
|
||||
return length, nil
|
||||
}
|
||||
|
||||
func (d *decoder) cp(length, decr uint32) {
|
||||
|
||||
if int(d.ref+length) < int(d.dpos) {
|
||||
copy(d.dst[d.dpos:], d.dst[d.ref:d.ref+length])
|
||||
} else {
|
||||
for ii := uint32(0); ii < length; ii++ {
|
||||
d.dst[d.dpos+ii] = d.dst[d.ref+ii]
|
||||
}
|
||||
}
|
||||
d.dpos += length
|
||||
d.ref += length - decr
|
||||
}
|
||||
|
||||
func (d *decoder) finish(err error) error {
|
||||
if err == io.EOF {
|
||||
return nil
|
||||
}
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
// Decode returns the decoded form of src. The returned slice may be a
|
||||
// subslice of dst if it was large enough to hold the entire decoded block.
|
||||
func Decode(dst, src []byte) ([]byte, error) {
|
||||
|
||||
if len(src) < 4 {
|
||||
return nil, ErrCorrupt
|
||||
}
|
||||
|
||||
uncompressedLen := binary.LittleEndian.Uint32(src)
|
||||
|
||||
if uncompressedLen == 0 {
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
if uncompressedLen > MaxInputSize {
|
||||
return nil, ErrTooLarge
|
||||
}
|
||||
|
||||
if dst == nil || len(dst) < int(uncompressedLen) {
|
||||
dst = make([]byte, uncompressedLen)
|
||||
}
|
||||
|
||||
d := decoder{src: src, dst: dst[:uncompressedLen], spos: 4}
|
||||
|
||||
decr := []uint32{0, 3, 2, 3}
|
||||
|
||||
for {
|
||||
code, err := d.readByte()
|
||||
if err != nil {
|
||||
return d.dst, d.finish(err)
|
||||
}
|
||||
|
||||
length := uint32(code >> mlBits)
|
||||
if length == runMask {
|
||||
ln, err := d.getLen()
|
||||
if err != nil {
|
||||
return nil, ErrCorrupt
|
||||
}
|
||||
length += ln
|
||||
}
|
||||
|
||||
if int(d.spos+length) > len(d.src) || int(d.dpos+length) > len(d.dst) {
|
||||
return nil, ErrCorrupt
|
||||
}
|
||||
|
||||
for ii := uint32(0); ii < length; ii++ {
|
||||
d.dst[d.dpos+ii] = d.src[d.spos+ii]
|
||||
}
|
||||
|
||||
d.spos += length
|
||||
d.dpos += length
|
||||
|
||||
if int(d.spos) == len(d.src) {
|
||||
return d.dst, nil
|
||||
}
|
||||
|
||||
if int(d.spos+2) >= len(d.src) {
|
||||
return nil, ErrCorrupt
|
||||
}
|
||||
|
||||
back := uint32(d.src[d.spos]) | uint32(d.src[d.spos+1])<<8
|
||||
|
||||
if back > d.dpos {
|
||||
return nil, ErrCorrupt
|
||||
}
|
||||
|
||||
d.spos += 2
|
||||
d.ref = d.dpos - back
|
||||
|
||||
length = uint32(code & mlMask)
|
||||
if length == mlMask {
|
||||
ln, err := d.getLen()
|
||||
if err != nil {
|
||||
return nil, ErrCorrupt
|
||||
}
|
||||
length += ln
|
||||
}
|
||||
|
||||
literal := d.dpos - d.ref
|
||||
|
||||
if literal < 4 {
|
||||
if int(d.dpos+4) > len(d.dst) {
|
||||
return nil, ErrCorrupt
|
||||
}
|
||||
|
||||
d.cp(4, decr[literal])
|
||||
} else {
|
||||
length += 4
|
||||
}
|
||||
|
||||
if d.dpos+length > uncompressedLen {
|
||||
return nil, ErrCorrupt
|
||||
}
|
||||
|
||||
d.cp(length, 0)
|
||||
}
|
||||
}
|
||||
|
|
@ -1,190 +0,0 @@
|
|||
/*
|
||||
* Copyright 2011-2012 Branimir Karadzic. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without modification,
|
||||
* are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||
* this list of conditions and the following disclaimer in the documentation
|
||||
* and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
|
||||
* SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
|
||||
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
||||
* THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
package lz4
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"errors"
|
||||
)
|
||||
|
||||
const (
|
||||
minMatch = 4
|
||||
hashLog = 17
|
||||
hashTableSize = 1 << hashLog
|
||||
hashShift = (minMatch * 8) - hashLog
|
||||
incompressible uint32 = 128
|
||||
uninitHash = 0x88888888
|
||||
|
||||
// MaxInputSize is the largest buffer than can be compressed in a single block
|
||||
MaxInputSize = 0x7E000000
|
||||
)
|
||||
|
||||
var (
|
||||
// ErrTooLarge indicates the input buffer was too large
|
||||
ErrTooLarge = errors.New("input too large")
|
||||
)
|
||||
|
||||
type encoder struct {
|
||||
src []byte
|
||||
dst []byte
|
||||
hashTable []uint32
|
||||
pos uint32
|
||||
anchor uint32
|
||||
dpos uint32
|
||||
}
|
||||
|
||||
// CompressBound returns the maximum length of a lz4 block, given it's uncompressed length
|
||||
func CompressBound(isize int) int {
|
||||
if isize > MaxInputSize {
|
||||
return 0
|
||||
}
|
||||
return isize + ((isize) / 255) + 16 + 4
|
||||
}
|
||||
|
||||
func (e *encoder) writeLiterals(length, mlLen, pos uint32) {
|
||||
|
||||
ln := length
|
||||
|
||||
var code byte
|
||||
if ln > runMask-1 {
|
||||
code = runMask
|
||||
} else {
|
||||
code = byte(ln)
|
||||
}
|
||||
|
||||
if mlLen > mlMask-1 {
|
||||
e.dst[e.dpos] = (code << mlBits) + byte(mlMask)
|
||||
} else {
|
||||
e.dst[e.dpos] = (code << mlBits) + byte(mlLen)
|
||||
}
|
||||
e.dpos++
|
||||
|
||||
if code == runMask {
|
||||
ln -= runMask
|
||||
for ; ln > 254; ln -= 255 {
|
||||
e.dst[e.dpos] = 255
|
||||
e.dpos++
|
||||
}
|
||||
|
||||
e.dst[e.dpos] = byte(ln)
|
||||
e.dpos++
|
||||
}
|
||||
|
||||
for ii := uint32(0); ii < length; ii++ {
|
||||
e.dst[e.dpos+ii] = e.src[pos+ii]
|
||||
}
|
||||
|
||||
e.dpos += length
|
||||
}
|
||||
|
||||
// Encode returns the encoded form of src. The returned array may be a
|
||||
// sub-slice of dst if it was large enough to hold the entire output.
|
||||
func Encode(dst, src []byte) ([]byte, error) {
|
||||
|
||||
if len(src) >= MaxInputSize {
|
||||
return nil, ErrTooLarge
|
||||
}
|
||||
|
||||
if n := CompressBound(len(src)); len(dst) < n {
|
||||
dst = make([]byte, n)
|
||||
}
|
||||
|
||||
e := encoder{src: src, dst: dst, hashTable: make([]uint32, hashTableSize)}
|
||||
|
||||
binary.LittleEndian.PutUint32(dst, uint32(len(src)))
|
||||
e.dpos = 4
|
||||
|
||||
var (
|
||||
step uint32 = 1
|
||||
limit = incompressible
|
||||
)
|
||||
|
||||
for {
|
||||
if int(e.pos)+12 >= len(e.src) {
|
||||
e.writeLiterals(uint32(len(e.src))-e.anchor, 0, e.anchor)
|
||||
return e.dst[:e.dpos], nil
|
||||
}
|
||||
|
||||
sequence := uint32(e.src[e.pos+3])<<24 | uint32(e.src[e.pos+2])<<16 | uint32(e.src[e.pos+1])<<8 | uint32(e.src[e.pos+0])
|
||||
|
||||
hash := (sequence * 2654435761) >> hashShift
|
||||
ref := e.hashTable[hash] + uninitHash
|
||||
e.hashTable[hash] = e.pos - uninitHash
|
||||
|
||||
if ((e.pos-ref)>>16) != 0 || uint32(e.src[ref+3])<<24|uint32(e.src[ref+2])<<16|uint32(e.src[ref+1])<<8|uint32(e.src[ref+0]) != sequence {
|
||||
if e.pos-e.anchor > limit {
|
||||
limit <<= 1
|
||||
step += 1 + (step >> 2)
|
||||
}
|
||||
e.pos += step
|
||||
continue
|
||||
}
|
||||
|
||||
if step > 1 {
|
||||
e.hashTable[hash] = ref - uninitHash
|
||||
e.pos -= step - 1
|
||||
step = 1
|
||||
continue
|
||||
}
|
||||
limit = incompressible
|
||||
|
||||
ln := e.pos - e.anchor
|
||||
back := e.pos - ref
|
||||
|
||||
anchor := e.anchor
|
||||
|
||||
e.pos += minMatch
|
||||
ref += minMatch
|
||||
e.anchor = e.pos
|
||||
|
||||
for int(e.pos) < len(e.src)-5 && e.src[e.pos] == e.src[ref] {
|
||||
e.pos++
|
||||
ref++
|
||||
}
|
||||
|
||||
mlLen := e.pos - e.anchor
|
||||
|
||||
e.writeLiterals(ln, mlLen, anchor)
|
||||
e.dst[e.dpos] = uint8(back)
|
||||
e.dst[e.dpos+1] = uint8(back >> 8)
|
||||
e.dpos += 2
|
||||
|
||||
if mlLen > mlMask-1 {
|
||||
mlLen -= mlMask
|
||||
for mlLen > 254 {
|
||||
mlLen -= 255
|
||||
|
||||
e.dst[e.dpos] = 255
|
||||
e.dpos++
|
||||
}
|
||||
|
||||
e.dst[e.dpos] = byte(mlLen)
|
||||
e.dpos++
|
||||
}
|
||||
|
||||
e.anchor = e.pos
|
||||
}
|
||||
}
|
||||
|
|
@ -756,20 +756,21 @@ var (
|
|||
)
|
||||
|
||||
var fileDescriptorAuth = []byte{
|
||||
// 236 bytes of a gzipped FileDescriptorProto
|
||||
// 254 bytes of a gzipped FileDescriptorProto
|
||||
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0xe2, 0xe2, 0x4a, 0x2c, 0x2d, 0xc9,
|
||||
0xd0, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x62, 0x03, 0xb1, 0x0b, 0x92, 0xa4, 0x44, 0xd2, 0xf3,
|
||||
0xd3, 0xf3, 0xc1, 0x42, 0xfa, 0x20, 0x16, 0x44, 0x56, 0xc9, 0x94, 0x8b, 0x25, 0xb4, 0x38, 0xb5,
|
||||
0x48, 0x88, 0x87, 0x8b, 0x25, 0x2f, 0x31, 0x37, 0x55, 0x82, 0x51, 0x81, 0x51, 0x83, 0x47, 0x48,
|
||||
0x80, 0x8b, 0xa3, 0x20, 0xb1, 0xb8, 0xb8, 0x3c, 0xbf, 0x28, 0x45, 0x82, 0x09, 0x2c, 0xc2, 0xcb,
|
||||
0xc5, 0x5a, 0x94, 0x9f, 0x93, 0x5a, 0x2c, 0xc1, 0xac, 0xc0, 0xac, 0xc1, 0xa9, 0x54, 0xc0, 0xc5,
|
||||
0x15, 0x90, 0x5a, 0x94, 0x9b, 0x59, 0x5c, 0x9c, 0x99, 0x9f, 0x27, 0xc4, 0xcd, 0xc5, 0x9c, 0x9d,
|
||||
0x5a, 0x09, 0xd5, 0xab, 0x09, 0xd4, 0x0b, 0x94, 0x0a, 0xa9, 0x2c, 0x48, 0x05, 0xeb, 0xe5, 0x33,
|
||||
0x12, 0xd7, 0x83, 0x38, 0x41, 0x0f, 0xa1, 0x45, 0x0f, 0x24, 0xad, 0xa4, 0xc5, 0xc5, 0x02, 0xa2,
|
||||
0x85, 0x38, 0xb8, 0x58, 0x82, 0x5c, 0x1d, 0x5d, 0x04, 0x18, 0x84, 0x38, 0xb9, 0x58, 0xc3, 0x83,
|
||||
0x3c, 0x43, 0x5c, 0x05, 0x18, 0x81, 0x36, 0x72, 0x82, 0x04, 0x21, 0x5c, 0x26, 0x25, 0x7b, 0xa0,
|
||||
0x1a, 0xa0, 0x03, 0xd0, 0x1c, 0xaa, 0xc9, 0xc5, 0x0b, 0xb4, 0x19, 0x61, 0x2e, 0xd0, 0x46, 0x66,
|
||||
0x0d, 0x6e, 0x23, 0x21, 0x4c, 0x1b, 0x9d, 0x44, 0x4e, 0x3c, 0x94, 0x63, 0xb8, 0x00, 0xc4, 0x27,
|
||||
0x1e, 0xc9, 0x31, 0x5e, 0x00, 0xe2, 0x07, 0x40, 0x9c, 0xc4, 0x06, 0x0e, 0x06, 0x63, 0x40, 0x00,
|
||||
0x00, 0x00, 0xff, 0xff, 0x8d, 0x09, 0x06, 0x6e, 0x32, 0x01, 0x00, 0x00,
|
||||
0xd3, 0xf3, 0xc1, 0x42, 0xfa, 0x20, 0x16, 0x44, 0x56, 0xc9, 0x87, 0x8b, 0x25, 0xb4, 0x38, 0xb5,
|
||||
0x48, 0x48, 0x88, 0x8b, 0x25, 0x2f, 0x31, 0x37, 0x55, 0x82, 0x51, 0x81, 0x51, 0x83, 0x27, 0x08,
|
||||
0xcc, 0x16, 0x92, 0xe2, 0xe2, 0x28, 0x48, 0x2c, 0x2e, 0x2e, 0xcf, 0x2f, 0x4a, 0x91, 0x60, 0x02,
|
||||
0x8b, 0xc3, 0xf9, 0x42, 0x22, 0x5c, 0xac, 0x45, 0xf9, 0x39, 0xa9, 0xc5, 0x12, 0xcc, 0x0a, 0xcc,
|
||||
0x1a, 0x9c, 0x41, 0x10, 0x8e, 0x52, 0x3d, 0x17, 0x57, 0x40, 0x6a, 0x51, 0x6e, 0x66, 0x71, 0x71,
|
||||
0x66, 0x7e, 0x9e, 0x90, 0x00, 0x17, 0x73, 0x76, 0x6a, 0x25, 0xd4, 0x48, 0x10, 0x53, 0xc8, 0x18,
|
||||
0x68, 0x22, 0x50, 0x3e, 0xa4, 0xb2, 0x20, 0x15, 0x6c, 0x22, 0x9f, 0x91, 0xb8, 0x1e, 0xc4, 0x79,
|
||||
0x7a, 0x08, 0x7d, 0x7a, 0x20, 0xe9, 0x20, 0xb8, 0x42, 0x25, 0x2d, 0x2e, 0x16, 0x10, 0x2d, 0xc4,
|
||||
0xc1, 0xc5, 0x12, 0xe4, 0xea, 0xe8, 0x22, 0xc0, 0x20, 0xc4, 0xc9, 0xc5, 0x1a, 0x1e, 0xe4, 0x19,
|
||||
0xe2, 0x2a, 0xc0, 0x28, 0xc4, 0xcb, 0xc5, 0x09, 0x12, 0x84, 0x70, 0x99, 0x94, 0x42, 0x80, 0x6a,
|
||||
0x80, 0x2e, 0xc1, 0xea, 0x1d, 0x0b, 0x2e, 0x5e, 0xa0, 0x1b, 0x10, 0xf6, 0x00, 0x5d, 0xc0, 0xac,
|
||||
0xc1, 0x6d, 0x24, 0x84, 0xe9, 0x82, 0x20, 0x54, 0x85, 0x4e, 0x22, 0x27, 0x1e, 0xca, 0x31, 0x5c,
|
||||
0x00, 0xe2, 0x13, 0x8f, 0xe4, 0x18, 0x2f, 0x00, 0xf1, 0x03, 0x20, 0x4e, 0x62, 0x03, 0x87, 0xa0,
|
||||
0x31, 0x20, 0x00, 0x00, 0xff, 0xff, 0x92, 0x06, 0xa1, 0xed, 0x6d, 0x01, 0x00, 0x00,
|
||||
}
|
||||
|
|
|
|||
|
|
@ -24,7 +24,6 @@ import (
|
|||
"sync"
|
||||
"time"
|
||||
|
||||
"github.com/coreos/etcd/pkg/compress"
|
||||
"golang.org/x/net/context"
|
||||
"google.golang.org/grpc"
|
||||
"google.golang.org/grpc/credentials"
|
||||
|
|
@ -123,17 +122,6 @@ func (c *Client) Dial(endpoint string) (*grpc.ClientConn, error) {
|
|||
opts = append(opts, grpc.WithInsecure())
|
||||
}
|
||||
|
||||
switch c.cfg.CompressType {
|
||||
case compress.Snappy:
|
||||
opts = append(opts,
|
||||
grpc.WithCompressor(compress.NewSnappyCompressor()),
|
||||
grpc.WithDecompressor(compress.NewSnappyDecompressor()))
|
||||
case compress.Lz4:
|
||||
opts = append(opts,
|
||||
grpc.WithCompressor(compress.NewLz4Compressor()),
|
||||
grpc.WithDecompressor(compress.NewLz4Decompressor()))
|
||||
}
|
||||
|
||||
proto := "tcp"
|
||||
if url, uerr := url.Parse(endpoint); uerr == nil && url.Scheme == "unix" {
|
||||
proto = "unix"
|
||||
|
|
|
|||
|
|
@ -20,7 +20,6 @@ import (
|
|||
"io/ioutil"
|
||||
"time"
|
||||
|
||||
"github.com/coreos/etcd/pkg/compress"
|
||||
"github.com/coreos/etcd/pkg/tlsutil"
|
||||
"github.com/ghodss/yaml"
|
||||
"google.golang.org/grpc"
|
||||
|
|
@ -44,8 +43,6 @@ type Config struct {
|
|||
|
||||
// Logger is the logger used by client library.
|
||||
Logger Logger
|
||||
|
||||
CompressType compress.Type
|
||||
}
|
||||
|
||||
type yamlConfig struct {
|
||||
|
|
|
|||
|
|
@ -440,7 +440,7 @@ func (w *watcher) serveStream(ws *watcherStream) {
|
|||
return
|
||||
}
|
||||
// resume up to last seen event if disconnected
|
||||
if resuming {
|
||||
if resuming && wr.Err() == nil {
|
||||
resuming = false
|
||||
// trim events already seen
|
||||
for i := 0; i < len(wr.Events); i++ {
|
||||
|
|
@ -454,6 +454,7 @@ func (w *watcher) serveStream(ws *watcherStream) {
|
|||
break
|
||||
}
|
||||
}
|
||||
resuming = false
|
||||
// TODO don't keep buffering if subscriber stops reading
|
||||
wrs = append(wrs, wr)
|
||||
case resumeRev := <-ws.resumec:
|
||||
|
|
|
|||
|
|
@ -110,23 +110,23 @@ var _ = math.Inf
|
|||
const _ = proto.GoGoProtoPackageIsVersion1
|
||||
|
||||
type Request struct {
|
||||
ID uint64 `protobuf:"varint,1,opt,name=ID" json:"ID"`
|
||||
Method string `protobuf:"bytes,2,opt,name=Method" json:"Method"`
|
||||
Path string `protobuf:"bytes,3,opt,name=Path" json:"Path"`
|
||||
Val string `protobuf:"bytes,4,opt,name=Val" json:"Val"`
|
||||
Dir bool `protobuf:"varint,5,opt,name=Dir" json:"Dir"`
|
||||
PrevValue string `protobuf:"bytes,6,opt,name=PrevValue" json:"PrevValue"`
|
||||
PrevIndex uint64 `protobuf:"varint,7,opt,name=PrevIndex" json:"PrevIndex"`
|
||||
PrevExist *bool `protobuf:"varint,8,opt,name=PrevExist" json:"PrevExist,omitempty"`
|
||||
Expiration int64 `protobuf:"varint,9,opt,name=Expiration" json:"Expiration"`
|
||||
Wait bool `protobuf:"varint,10,opt,name=Wait" json:"Wait"`
|
||||
Since uint64 `protobuf:"varint,11,opt,name=Since" json:"Since"`
|
||||
Recursive bool `protobuf:"varint,12,opt,name=Recursive" json:"Recursive"`
|
||||
Sorted bool `protobuf:"varint,13,opt,name=Sorted" json:"Sorted"`
|
||||
Quorum bool `protobuf:"varint,14,opt,name=Quorum" json:"Quorum"`
|
||||
Time int64 `protobuf:"varint,15,opt,name=Time" json:"Time"`
|
||||
Stream bool `protobuf:"varint,16,opt,name=Stream" json:"Stream"`
|
||||
Refresh *bool `protobuf:"varint,17,opt,name=Refresh" json:"Refresh,omitempty"`
|
||||
ID uint64 `protobuf:"varint,1,opt,name=ID,json=iD" json:"ID"`
|
||||
Method string `protobuf:"bytes,2,opt,name=Method,json=method" json:"Method"`
|
||||
Path string `protobuf:"bytes,3,opt,name=Path,json=path" json:"Path"`
|
||||
Val string `protobuf:"bytes,4,opt,name=Val,json=val" json:"Val"`
|
||||
Dir bool `protobuf:"varint,5,opt,name=Dir,json=dir" json:"Dir"`
|
||||
PrevValue string `protobuf:"bytes,6,opt,name=PrevValue,json=prevValue" json:"PrevValue"`
|
||||
PrevIndex uint64 `protobuf:"varint,7,opt,name=PrevIndex,json=prevIndex" json:"PrevIndex"`
|
||||
PrevExist *bool `protobuf:"varint,8,opt,name=PrevExist,json=prevExist" json:"PrevExist,omitempty"`
|
||||
Expiration int64 `protobuf:"varint,9,opt,name=Expiration,json=expiration" json:"Expiration"`
|
||||
Wait bool `protobuf:"varint,10,opt,name=Wait,json=wait" json:"Wait"`
|
||||
Since uint64 `protobuf:"varint,11,opt,name=Since,json=since" json:"Since"`
|
||||
Recursive bool `protobuf:"varint,12,opt,name=Recursive,json=recursive" json:"Recursive"`
|
||||
Sorted bool `protobuf:"varint,13,opt,name=Sorted,json=sorted" json:"Sorted"`
|
||||
Quorum bool `protobuf:"varint,14,opt,name=Quorum,json=quorum" json:"Quorum"`
|
||||
Time int64 `protobuf:"varint,15,opt,name=Time,json=time" json:"Time"`
|
||||
Stream bool `protobuf:"varint,16,opt,name=Stream,json=stream" json:"Stream"`
|
||||
Refresh *bool `protobuf:"varint,17,opt,name=Refresh,json=refresh" json:"Refresh,omitempty"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
}
|
||||
|
||||
|
|
@ -136,8 +136,8 @@ func (*Request) ProtoMessage() {}
|
|||
func (*Request) Descriptor() ([]byte, []int) { return fileDescriptorEtcdserver, []int{0} }
|
||||
|
||||
type Metadata struct {
|
||||
NodeID uint64 `protobuf:"varint,1,opt,name=NodeID" json:"NodeID"`
|
||||
ClusterID uint64 `protobuf:"varint,2,opt,name=ClusterID" json:"ClusterID"`
|
||||
NodeID uint64 `protobuf:"varint,1,opt,name=NodeID,json=nodeID" json:"NodeID"`
|
||||
ClusterID uint64 `protobuf:"varint,2,opt,name=ClusterID,json=clusterID" json:"ClusterID"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
}
|
||||
|
||||
|
|
@ -1005,25 +1005,30 @@ var (
|
|||
)
|
||||
|
||||
var fileDescriptorEtcdserver = []byte{
|
||||
// 320 bytes of a gzipped FileDescriptorProto
|
||||
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0x5c, 0x91, 0x4f, 0x4f, 0xf2, 0x40,
|
||||
0x10, 0xc6, 0x69, 0x29, 0xff, 0xf6, 0xe5, 0xd5, 0x52, 0x31, 0x4e, 0x3c, 0xa0, 0xe1, 0xe4, 0x49,
|
||||
0xcf, 0x5e, 0x11, 0x0e, 0x1c, 0x34, 0x08, 0x46, 0xcf, 0x2b, 0x1d, 0x61, 0x13, 0x60, 0x71, 0x3a,
|
||||
0x4b, 0xf8, 0x88, 0x1c, 0xfd, 0x04, 0x46, 0xfd, 0x22, 0xba, 0xd5, 0xc6, 0x6e, 0x3d, 0x6c, 0xd2,
|
||||
0xfc, 0x9e, 0x67, 0x66, 0x9e, 0x99, 0x8a, 0x10, 0x79, 0x1a, 0x27, 0x48, 0x1b, 0xa4, 0xf3, 0x35,
|
||||
0x69, 0xd6, 0x51, 0x33, 0x27, 0xeb, 0xc7, 0xe3, 0xf6, 0x4c, 0xcf, 0xf4, 0xb7, 0x70, 0x91, 0x7e,
|
||||
0xfd, 0x78, 0xba, 0x9f, 0xbe, 0xa8, 0x8d, 0xf1, 0xd9, 0x60, 0xc2, 0x51, 0x28, 0xfc, 0x61, 0x1f,
|
||||
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|
||||
0x8e, 0xc1, 0xb7, 0xb4, 0x91, 0xd1, 0x48, 0x04, 0x23, 0xc9, 0x73, 0x28, 0x3b, 0xac, 0x25, 0xca,
|
||||
0xf7, 0x72, 0x01, 0x41, 0x11, 0xf5, 0x15, 0x41, 0xc5, 0xa2, 0x7a, 0x86, 0x8e, 0x44, 0x63, 0x44,
|
||||
0xb8, 0xb1, 0x4e, 0x83, 0x50, 0x75, 0xbc, 0x99, 0x30, 0x5c, 0xc5, 0xb8, 0x85, 0x9a, 0x93, 0x20,
|
||||
0x13, 0x06, 0x5b, 0x95, 0x30, 0xd4, 0x7f, 0x5b, 0x79, 0x11, 0x08, 0x31, 0xd8, 0xae, 0x15, 0x49,
|
||||
0x56, 0x7a, 0x05, 0x0d, 0xab, 0x94, 0xf3, 0x78, 0x0f, 0x52, 0x31, 0x08, 0x67, 0xf0, 0x81, 0xa8,
|
||||
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|
||||
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|
||||
0xd4, 0x4e, 0xbb, 0x53, 0x4b, 0x84, 0x7d, 0x27, 0x41, 0x5a, 0xcf, 0x84, 0x72, 0x09, 0xa1, 0xe3,
|
||||
0x3c, 0x4c, 0x2f, 0xfd, 0x44, 0x98, 0xcc, 0xa1, 0x95, 0x2f, 0xd2, 0xbd, 0x14, 0x75, 0x7b, 0x63,
|
||||
0x19, 0x4b, 0x96, 0x69, 0xe1, 0x8d, 0x8e, 0xf1, 0xcf, 0x5f, 0xb0, 0x39, 0xaf, 0x16, 0x26, 0x61,
|
||||
0x24, 0x2b, 0xf8, 0xb9, 0xd0, 0x0b, 0x77, 0xef, 0x9d, 0xd2, 0xee, 0xa3, 0xe3, 0xbd, 0xd8, 0xf7,
|
||||
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|
||||
// 388 bytes of a gzipped FileDescriptorProto
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
0xaa, 0x02, 0x4f, 0xd0, 0x0f, 0x82, 0x7a, 0x8f, 0xc7, 0x9d, 0x67, 0x79, 0x12, 0xda, 0xc0, 0xe0,
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
0xab, 0x51, 0xc8, 0x4b, 0x18, 0xfd, 0xd3, 0xd5, 0x33, 0x36, 0x75, 0x8b, 0xfe, 0xa2, 0x50, 0xef,
|
||||
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|
||||
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|
||||
0x50, 0x59, 0x43, 0x1c, 0x6e, 0x21, 0xef, 0xf0, 0x7c, 0x74, 0xfe, 0x35, 0xbd, 0x3b, 0xff, 0x9e,
|
||||
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|
||||
0xa0, 0x02, 0x00, 0x00,
|
||||
}
|
||||
|
|
|
|||
|
|
@ -22,22 +22,22 @@ var _ = math.Inf
|
|||
// An InternalRaftRequest is the union of all requests which can be
|
||||
// sent via raft.
|
||||
type InternalRaftRequest struct {
|
||||
ID uint64 `protobuf:"varint,1,opt,name=ID,proto3" json:"ID,omitempty"`
|
||||
ID uint64 `protobuf:"varint,1,opt,name=ID,json=iD,proto3" json:"ID,omitempty"`
|
||||
V2 *Request `protobuf:"bytes,2,opt,name=v2" json:"v2,omitempty"`
|
||||
Range *RangeRequest `protobuf:"bytes,3,opt,name=range" json:"range,omitempty"`
|
||||
Put *PutRequest `protobuf:"bytes,4,opt,name=put" json:"put,omitempty"`
|
||||
DeleteRange *DeleteRangeRequest `protobuf:"bytes,5,opt,name=delete_range" json:"delete_range,omitempty"`
|
||||
DeleteRange *DeleteRangeRequest `protobuf:"bytes,5,opt,name=delete_range,json=deleteRange" json:"delete_range,omitempty"`
|
||||
Txn *TxnRequest `protobuf:"bytes,6,opt,name=txn" json:"txn,omitempty"`
|
||||
Compaction *CompactionRequest `protobuf:"bytes,7,opt,name=compaction" json:"compaction,omitempty"`
|
||||
LeaseGrant *LeaseGrantRequest `protobuf:"bytes,8,opt,name=lease_grant" json:"lease_grant,omitempty"`
|
||||
LeaseRevoke *LeaseRevokeRequest `protobuf:"bytes,9,opt,name=lease_revoke" json:"lease_revoke,omitempty"`
|
||||
AuthEnable *AuthEnableRequest `protobuf:"bytes,10,opt,name=auth_enable" json:"auth_enable,omitempty"`
|
||||
AuthUserAdd *AuthUserAddRequest `protobuf:"bytes,11,opt,name=auth_user_add" json:"auth_user_add,omitempty"`
|
||||
AuthUserDelete *AuthUserDeleteRequest `protobuf:"bytes,12,opt,name=auth_user_delete" json:"auth_user_delete,omitempty"`
|
||||
AuthUserChangePassword *AuthUserChangePasswordRequest `protobuf:"bytes,13,opt,name=auth_user_change_password" json:"auth_user_change_password,omitempty"`
|
||||
AuthUserGrant *AuthUserGrantRequest `protobuf:"bytes,14,opt,name=auth_user_grant" json:"auth_user_grant,omitempty"`
|
||||
AuthRoleAdd *AuthRoleAddRequest `protobuf:"bytes,15,opt,name=auth_role_add" json:"auth_role_add,omitempty"`
|
||||
AuthRoleGrant *AuthRoleGrantRequest `protobuf:"bytes,16,opt,name=auth_role_grant" json:"auth_role_grant,omitempty"`
|
||||
LeaseGrant *LeaseGrantRequest `protobuf:"bytes,8,opt,name=lease_grant,json=leaseGrant" json:"lease_grant,omitempty"`
|
||||
LeaseRevoke *LeaseRevokeRequest `protobuf:"bytes,9,opt,name=lease_revoke,json=leaseRevoke" json:"lease_revoke,omitempty"`
|
||||
AuthEnable *AuthEnableRequest `protobuf:"bytes,10,opt,name=auth_enable,json=authEnable" json:"auth_enable,omitempty"`
|
||||
AuthUserAdd *AuthUserAddRequest `protobuf:"bytes,11,opt,name=auth_user_add,json=authUserAdd" json:"auth_user_add,omitempty"`
|
||||
AuthUserDelete *AuthUserDeleteRequest `protobuf:"bytes,12,opt,name=auth_user_delete,json=authUserDelete" json:"auth_user_delete,omitempty"`
|
||||
AuthUserChangePassword *AuthUserChangePasswordRequest `protobuf:"bytes,13,opt,name=auth_user_change_password,json=authUserChangePassword" json:"auth_user_change_password,omitempty"`
|
||||
AuthUserGrant *AuthUserGrantRequest `protobuf:"bytes,14,opt,name=auth_user_grant,json=authUserGrant" json:"auth_user_grant,omitempty"`
|
||||
AuthRoleAdd *AuthRoleAddRequest `protobuf:"bytes,15,opt,name=auth_role_add,json=authRoleAdd" json:"auth_role_add,omitempty"`
|
||||
AuthRoleGrant *AuthRoleGrantRequest `protobuf:"bytes,16,opt,name=auth_role_grant,json=authRoleGrant" json:"auth_role_grant,omitempty"`
|
||||
Authenticate *AuthenticateRequest `protobuf:"bytes,17,opt,name=authenticate" json:"authenticate,omitempty"`
|
||||
Alarm *AlarmRequest `protobuf:"bytes,18,opt,name=alarm" json:"alarm,omitempty"`
|
||||
}
|
||||
|
|
@ -1185,35 +1185,39 @@ var (
|
|||
)
|
||||
|
||||
var fileDescriptorRaftInternal = []byte{
|
||||
// 473 bytes of a gzipped FileDescriptorProto
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
0xfa, 0x68, 0x81, 0x0f, 0x76, 0x5e, 0xf9, 0x92, 0xc2, 0x52, 0xb8, 0x90, 0xdf, 0x90, 0xed, 0xfa,
|
||||
0xbe, 0x84, 0xb4, 0x80, 0x80, 0xca, 0x36, 0x9e, 0xeb, 0xcb, 0x10, 0x05, 0x9f, 0x24, 0xc8, 0xc0,
|
||||
0xb7, 0x6d, 0x6c, 0x80, 0x33, 0x9a, 0x3b, 0xeb, 0x0d, 0x74, 0xc8, 0xca, 0x0d, 0x13, 0xf2, 0x38,
|
||||
0x66, 0x2d, 0xdf, 0x3a, 0xeb, 0x7d, 0x31, 0x7f, 0x8d, 0xe3, 0xd8, 0x89, 0xef, 0xa0, 0xb7, 0x14,
|
||||
0x8b, 0xea, 0x59, 0x9b, 0xdc, 0x27, 0x7e, 0xb7, 0x2c, 0xbf, 0xd4, 0x3f, 0xc1, 0xa3, 0xa5, 0x1e,
|
||||
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|
||||
0x39, 0x21, 0xf8, 0xa2, 0x64, 0x5d, 0xde, 0x5b, 0xe8, 0x2e, 0xf3, 0x8a, 0xbe, 0xef, 0x51, 0xca,
|
||||
0xd0, 0x9f, 0x52, 0xab, 0xdc, 0x95, 0xa0, 0x64, 0x82, 0x54, 0x42, 0x77, 0x5d, 0x09, 0x81, 0x21,
|
||||
0x2a, 0x25, 0xb8, 0xad, 0x24, 0x16, 0x5b, 0x7b, 0xeb, 0xb6, 0x5a, 0x75, 0x65, 0x6b, 0xdb, 0xca,
|
||||
0x28, 0xf4, 0x2c, 0xe2, 0xa6, 0xbd, 0xfb, 0x64, 0x1e, 0xde, 0x36, 0x1d, 0x51, 0xb9, 0x3d, 0x3c,
|
||||
0xe1, 0x6a, 0xce, 0xfa, 0xbe, 0xdb, 0x33, 0xb6, 0xa3, 0x12, 0x1d, 0x76, 0xa1, 0x73, 0x36, 0x4f,
|
||||
0xf5, 0xcf, 0x00, 0xb3, 0x54, 0x8a, 0x0c, 0xdf, 0xf7, 0xae, 0xff, 0xee, 0xdf, 0xb9, 0xfe, 0xb7,
|
||||
0xdf, 0xf8, 0x6d, 0x9e, 0x3f, 0xe6, 0x99, 0x6c, 0xd3, 0xcd, 0x3e, 0xfe, 0x1f, 0x00, 0x00, 0xff,
|
||||
0xff, 0x8e, 0xdf, 0x9b, 0x7d, 0x31, 0x04, 0x00, 0x00,
|
||||
// 534 bytes of a gzipped FileDescriptorProto
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
0x3a, 0x2b, 0x98, 0x9e, 0x1e, 0xe0, 0xc1, 0xf7, 0x0c, 0x52, 0x45, 0xbb, 0xa4, 0x79, 0x36, 0x65,
|
||||
0x8d, 0x93, 0xc6, 0xf3, 0x5d, 0xaf, 0xb9, 0x9c, 0xd2, 0x67, 0xa4, 0xb9, 0x3e, 0x65, 0x4d, 0xfd,
|
||||
0xde, 0x3a, 0x7d, 0x30, 0xda, 0x9c, 0x3a, 0x2a, 0x5a, 0x3c, 0x6d, 0xa0, 0xaf, 0xc9, 0x9e, 0xe4,
|
||||
0xf1, 0x02, 0xd8, 0x0e, 0x3a, 0x07, 0x37, 0x9c, 0xa6, 0x54, 0xda, 0x73, 0x23, 0x7d, 0x41, 0x76,
|
||||
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|
||||
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|
||||
0x6a, 0x85, 0x95, 0x66, 0x06, 0xaa, 0xab, 0x98, 0xed, 0xbb, 0x06, 0x7e, 0xb9, 0x8a, 0xed, 0x40,
|
||||
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|
||||
0xf5, 0x96, 0x89, 0xad, 0x97, 0x9d, 0x1b, 0x2d, 0xf4, 0x1d, 0x69, 0x45, 0xc0, 0x53, 0xf0, 0x17,
|
||||
0x3a, 0xb1, 0x62, 0x07, 0x2e, 0xc2, 0x27, 0x63, 0xf8, 0x60, 0xea, 0x96, 0x10, 0x59, 0xc9, 0x7c,
|
||||
0x73, 0x4e, 0x90, 0xb0, 0x16, 0xdf, 0x80, 0x1d, 0xba, 0xbe, 0x19, 0x11, 0x1e, 0x1a, 0xec, 0x37,
|
||||
0x47, 0x95, 0x66, 0x62, 0xf0, 0x4c, 0x5d, 0xfa, 0x10, 0xf3, 0x79, 0x04, 0x8c, 0xb8, 0x62, 0x8c,
|
||||
0xb5, 0x61, 0x86, 0x75, 0x1b, 0x83, 0x5b, 0x89, 0x4e, 0x49, 0x07, 0x09, 0x99, 0xf6, 0xfb, 0x3c,
|
||||
0x0c, 0x59, 0xcb, 0x95, 0xc3, 0x30, 0xbe, 0xea, 0xb7, 0x71, 0x18, 0xda, 0x1c, 0xbc, 0xd2, 0xe8,
|
||||
0x67, 0xd2, 0xaf, 0x28, 0xf9, 0x52, 0x58, 0x1b, 0x41, 0x4f, 0xdd, 0xa0, 0x62, 0x99, 0x05, 0xab,
|
||||
0xcb, 0x6b, 0x32, 0xbd, 0x20, 0x8f, 0x2a, 0x5c, 0x70, 0x69, 0xd6, 0xeb, 0x27, 0x3c, 0x4d, 0x7f,
|
||||
0x08, 0x19, 0xb2, 0x0e, 0x72, 0x5f, 0xba, 0xb9, 0x13, 0x34, 0x9f, 0x17, 0xde, 0x92, 0xff, 0x90,
|
||||
0x3b, 0xcb, 0xf4, 0x23, 0xe9, 0x55, 0x73, 0xf2, 0x4d, 0x76, 0x91, 0x3e, 0x74, 0xd3, 0x6b, 0xcb,
|
||||
0xec, 0xf0, 0x4d, 0xd5, 0x1e, 0xa4, 0x14, 0x11, 0xe0, 0x41, 0xf6, 0xb6, 0x1d, 0xa4, 0xa7, 0x1d,
|
||||
0x37, 0x0f, 0xb2, 0xd0, 0x6c, 0x22, 0xa4, 0xe4, 0x89, 0xfa, 0xdb, 0x12, 0x99, 0x9e, 0xdb, 0x89,
|
||||
0xac, 0x4a, 0x67, 0xa4, 0x6d, 0x04, 0x88, 0xd5, 0x32, 0xe0, 0x7a, 0x21, 0xf7, 0x10, 0xf4, 0xe4,
|
||||
0x36, 0xa8, 0x74, 0x94, 0x9c, 0x5a, 0x9b, 0xb9, 0xfa, 0x3c, 0xe2, 0x72, 0xc5, 0xa8, 0xeb, 0xea,
|
||||
0x8f, 0x4d, 0xc9, 0x5e, 0x7d, 0x34, 0x0e, 0x7b, 0xa4, 0x33, 0x5b, 0x25, 0xea, 0xa7, 0x07, 0x69,
|
||||
0x22, 0xe2, 0x14, 0xde, 0xf7, 0xaf, 0xff, 0x1c, 0xdf, 0xb9, 0xfe, 0x7b, 0xdc, 0xf8, 0xa5, 0x7f,
|
||||
0xbf, 0xf5, 0x6f, 0xbe, 0x8f, 0xff, 0x52, 0x6f, 0xfe, 0x07, 0x00, 0x00, 0xff, 0xff, 0xee, 0xd7,
|
||||
0xc5, 0x26, 0xfd, 0x04, 0x00, 0x00,
|
||||
}
|
||||
|
|
|
|||
|
|
@ -182,13 +182,13 @@ func (AlarmRequest_AlarmAction) EnumDescriptor() ([]byte, []int) {
|
|||
|
||||
type ResponseHeader struct {
|
||||
// cluster_id is the ID of the cluster which sent the response.
|
||||
ClusterId uint64 `protobuf:"varint,1,opt,name=cluster_id,proto3" json:"cluster_id,omitempty"`
|
||||
ClusterId uint64 `protobuf:"varint,1,opt,name=cluster_id,json=clusterId,proto3" json:"cluster_id,omitempty"`
|
||||
// member_id is the ID of the member which sent the response.
|
||||
MemberId uint64 `protobuf:"varint,2,opt,name=member_id,proto3" json:"member_id,omitempty"`
|
||||
MemberId uint64 `protobuf:"varint,2,opt,name=member_id,json=memberId,proto3" json:"member_id,omitempty"`
|
||||
// revision is the key-value store revision when the request was applied.
|
||||
Revision int64 `protobuf:"varint,3,opt,name=revision,proto3" json:"revision,omitempty"`
|
||||
// raft_term is the raft term when the request was applied.
|
||||
RaftTerm uint64 `protobuf:"varint,4,opt,name=raft_term,proto3" json:"raft_term,omitempty"`
|
||||
RaftTerm uint64 `protobuf:"varint,4,opt,name=raft_term,json=raftTerm,proto3" json:"raft_term,omitempty"`
|
||||
}
|
||||
|
||||
func (m *ResponseHeader) Reset() { *m = ResponseHeader{} }
|
||||
|
|
@ -201,7 +201,7 @@ type RangeRequest struct {
|
|||
Key []byte `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
|
||||
// range_end is the upper bound on the requested range [key, range_end).
|
||||
// If range_end is '\0', the range is all keys >= key.
|
||||
RangeEnd []byte `protobuf:"bytes,2,opt,name=range_end,proto3" json:"range_end,omitempty"`
|
||||
RangeEnd []byte `protobuf:"bytes,2,opt,name=range_end,json=rangeEnd,proto3" json:"range_end,omitempty"`
|
||||
// limit is a limit on the number of keys returned for the request.
|
||||
Limit int64 `protobuf:"varint,3,opt,name=limit,proto3" json:"limit,omitempty"`
|
||||
// revision is the point-in-time of the key-value store to use for the range.
|
||||
|
|
@ -209,9 +209,9 @@ type RangeRequest struct {
|
|||
// If the revision has been compacted, ErrCompaction is returned as a response.
|
||||
Revision int64 `protobuf:"varint,4,opt,name=revision,proto3" json:"revision,omitempty"`
|
||||
// sort_order is the order for returned sorted results.
|
||||
SortOrder RangeRequest_SortOrder `protobuf:"varint,5,opt,name=sort_order,proto3,enum=etcdserverpb.RangeRequest_SortOrder" json:"sort_order,omitempty"`
|
||||
SortOrder RangeRequest_SortOrder `protobuf:"varint,5,opt,name=sort_order,json=sortOrder,proto3,enum=etcdserverpb.RangeRequest_SortOrder" json:"sort_order,omitempty"`
|
||||
// sort_target is the key-value field to use for sorting.
|
||||
SortTarget RangeRequest_SortTarget `protobuf:"varint,6,opt,name=sort_target,proto3,enum=etcdserverpb.RangeRequest_SortTarget" json:"sort_target,omitempty"`
|
||||
SortTarget RangeRequest_SortTarget `protobuf:"varint,6,opt,name=sort_target,json=sortTarget,proto3,enum=etcdserverpb.RangeRequest_SortTarget" json:"sort_target,omitempty"`
|
||||
// serializable sets the range request to use serializable member-local reads.
|
||||
// Range requests are linearizable by default; linearizable requests have higher
|
||||
// latency and lower throughput than serializable requests but reflect the current
|
||||
|
|
@ -290,7 +290,7 @@ type DeleteRangeRequest struct {
|
|||
// range_end is the key following the last key to delete for the range [key, range_end).
|
||||
// If range_end is not given, the range is defined to contain only the key argument.
|
||||
// If range_end is '\0', the range is all keys greater than or equal to the key argument.
|
||||
RangeEnd []byte `protobuf:"bytes,2,opt,name=range_end,proto3" json:"range_end,omitempty"`
|
||||
RangeEnd []byte `protobuf:"bytes,2,opt,name=range_end,json=rangeEnd,proto3" json:"range_end,omitempty"`
|
||||
}
|
||||
|
||||
func (m *DeleteRangeRequest) Reset() { *m = DeleteRangeRequest{} }
|
||||
|
|
@ -338,13 +338,13 @@ type isRequestUnion_Request interface {
|
|||
}
|
||||
|
||||
type RequestUnion_RequestRange struct {
|
||||
RequestRange *RangeRequest `protobuf:"bytes,1,opt,name=request_range,oneof"`
|
||||
RequestRange *RangeRequest `protobuf:"bytes,1,opt,name=request_range,json=requestRange,oneof"`
|
||||
}
|
||||
type RequestUnion_RequestPut struct {
|
||||
RequestPut *PutRequest `protobuf:"bytes,2,opt,name=request_put,oneof"`
|
||||
RequestPut *PutRequest `protobuf:"bytes,2,opt,name=request_put,json=requestPut,oneof"`
|
||||
}
|
||||
type RequestUnion_RequestDeleteRange struct {
|
||||
RequestDeleteRange *DeleteRangeRequest `protobuf:"bytes,3,opt,name=request_delete_range,oneof"`
|
||||
RequestDeleteRange *DeleteRangeRequest `protobuf:"bytes,3,opt,name=request_delete_range,json=requestDeleteRange,oneof"`
|
||||
}
|
||||
|
||||
func (*RequestUnion_RequestRange) isRequestUnion_Request() {}
|
||||
|
|
@ -494,13 +494,13 @@ type isResponseUnion_Response interface {
|
|||
}
|
||||
|
||||
type ResponseUnion_ResponseRange struct {
|
||||
ResponseRange *RangeResponse `protobuf:"bytes,1,opt,name=response_range,oneof"`
|
||||
ResponseRange *RangeResponse `protobuf:"bytes,1,opt,name=response_range,json=responseRange,oneof"`
|
||||
}
|
||||
type ResponseUnion_ResponsePut struct {
|
||||
ResponsePut *PutResponse `protobuf:"bytes,2,opt,name=response_put,oneof"`
|
||||
ResponsePut *PutResponse `protobuf:"bytes,2,opt,name=response_put,json=responsePut,oneof"`
|
||||
}
|
||||
type ResponseUnion_ResponseDeleteRange struct {
|
||||
ResponseDeleteRange *DeleteRangeResponse `protobuf:"bytes,3,opt,name=response_delete_range,oneof"`
|
||||
ResponseDeleteRange *DeleteRangeResponse `protobuf:"bytes,3,opt,name=response_delete_range,json=responseDeleteRange,oneof"`
|
||||
}
|
||||
|
||||
func (*ResponseUnion_ResponseRange) isResponseUnion_Response() {}
|
||||
|
|
@ -658,10 +658,10 @@ type Compare_Version struct {
|
|||
Version int64 `protobuf:"varint,4,opt,name=version,proto3,oneof"`
|
||||
}
|
||||
type Compare_CreateRevision struct {
|
||||
CreateRevision int64 `protobuf:"varint,5,opt,name=create_revision,proto3,oneof"`
|
||||
CreateRevision int64 `protobuf:"varint,5,opt,name=create_revision,json=createRevision,proto3,oneof"`
|
||||
}
|
||||
type Compare_ModRevision struct {
|
||||
ModRevision int64 `protobuf:"varint,6,opt,name=mod_revision,proto3,oneof"`
|
||||
ModRevision int64 `protobuf:"varint,6,opt,name=mod_revision,json=modRevision,proto3,oneof"`
|
||||
}
|
||||
type Compare_Value struct {
|
||||
Value []byte `protobuf:"bytes,7,opt,name=value,proto3,oneof"`
|
||||
|
|
@ -882,10 +882,10 @@ func (m *TxnResponse) GetResponses() []*ResponseUnion {
|
|||
return nil
|
||||
}
|
||||
|
||||
// CompactionRequest compacts the key-value store upto a given revision. All superseded keys
|
||||
// CompactionRequest compacts the key-value store up to a given revision. All superseded keys
|
||||
// with a revision less than the compaction revision will be removed.
|
||||
type CompactionRequest struct {
|
||||
// revision is the key-value store revision for the compation operation.
|
||||
// revision is the key-value store revision for the compaction operation.
|
||||
Revision int64 `protobuf:"varint,1,opt,name=revision,proto3" json:"revision,omitempty"`
|
||||
// physical is set so the RPC will wait until the compaction is physically
|
||||
// applied to the local database such that compacted entries are totally
|
||||
|
|
@ -953,7 +953,7 @@ type SnapshotResponse struct {
|
|||
// stream indicates the point in time of the snapshot.
|
||||
Header *ResponseHeader `protobuf:"bytes,1,opt,name=header" json:"header,omitempty"`
|
||||
// remaining_bytes is the number of blob bytes to be sent after this message
|
||||
RemainingBytes uint64 `protobuf:"varint,2,opt,name=remaining_bytes,proto3" json:"remaining_bytes,omitempty"`
|
||||
RemainingBytes uint64 `protobuf:"varint,2,opt,name=remaining_bytes,json=remainingBytes,proto3" json:"remaining_bytes,omitempty"`
|
||||
// blob contains the next chunk of the snapshot in the snapshot stream.
|
||||
Blob []byte `protobuf:"bytes,3,opt,name=blob,proto3" json:"blob,omitempty"`
|
||||
}
|
||||
|
|
@ -991,10 +991,10 @@ type isWatchRequest_RequestUnion interface {
|
|||
}
|
||||
|
||||
type WatchRequest_CreateRequest struct {
|
||||
CreateRequest *WatchCreateRequest `protobuf:"bytes,1,opt,name=create_request,oneof"`
|
||||
CreateRequest *WatchCreateRequest `protobuf:"bytes,1,opt,name=create_request,json=createRequest,oneof"`
|
||||
}
|
||||
type WatchRequest_CancelRequest struct {
|
||||
CancelRequest *WatchCancelRequest `protobuf:"bytes,2,opt,name=cancel_request,oneof"`
|
||||
CancelRequest *WatchCancelRequest `protobuf:"bytes,2,opt,name=cancel_request,json=cancelRequest,oneof"`
|
||||
}
|
||||
|
||||
func (*WatchRequest_CreateRequest) isWatchRequest_RequestUnion() {}
|
||||
|
|
@ -1101,14 +1101,14 @@ type WatchCreateRequest struct {
|
|||
// range_end is the end of the range [key, range_end) to watch. If range_end is not given,
|
||||
// only the key argument is watched. If range_end is equal to '\0', all keys greater than
|
||||
// or equal to the key argument are watched.
|
||||
RangeEnd []byte `protobuf:"bytes,2,opt,name=range_end,proto3" json:"range_end,omitempty"`
|
||||
RangeEnd []byte `protobuf:"bytes,2,opt,name=range_end,json=rangeEnd,proto3" json:"range_end,omitempty"`
|
||||
// start_revision is an optional revision to watch from (inclusive). No start_revision is "now".
|
||||
StartRevision int64 `protobuf:"varint,3,opt,name=start_revision,proto3" json:"start_revision,omitempty"`
|
||||
StartRevision int64 `protobuf:"varint,3,opt,name=start_revision,json=startRevision,proto3" json:"start_revision,omitempty"`
|
||||
// progress_notify is set so that the etcd server will periodically send a WatchResponse with
|
||||
// no events to the new watcher if there are no recent events. It is useful when clients
|
||||
// wish to recover a disconnected watcher starting from a recent known revision.
|
||||
// The etcd server may decide how often it will send notifications based on current load.
|
||||
ProgressNotify bool `protobuf:"varint,4,opt,name=progress_notify,proto3" json:"progress_notify,omitempty"`
|
||||
ProgressNotify bool `protobuf:"varint,4,opt,name=progress_notify,json=progressNotify,proto3" json:"progress_notify,omitempty"`
|
||||
}
|
||||
|
||||
func (m *WatchCreateRequest) Reset() { *m = WatchCreateRequest{} }
|
||||
|
|
@ -1118,7 +1118,7 @@ func (*WatchCreateRequest) Descriptor() ([]byte, []int) { return fileDescriptorR
|
|||
|
||||
type WatchCancelRequest struct {
|
||||
// watch_id is the watcher id to cancel so that no more events are transmitted.
|
||||
WatchId int64 `protobuf:"varint,1,opt,name=watch_id,proto3" json:"watch_id,omitempty"`
|
||||
WatchId int64 `protobuf:"varint,1,opt,name=watch_id,json=watchId,proto3" json:"watch_id,omitempty"`
|
||||
}
|
||||
|
||||
func (m *WatchCancelRequest) Reset() { *m = WatchCancelRequest{} }
|
||||
|
|
@ -1129,7 +1129,7 @@ func (*WatchCancelRequest) Descriptor() ([]byte, []int) { return fileDescriptorR
|
|||
type WatchResponse struct {
|
||||
Header *ResponseHeader `protobuf:"bytes,1,opt,name=header" json:"header,omitempty"`
|
||||
// watch_id is the ID of the watcher that corresponds to the response.
|
||||
WatchId int64 `protobuf:"varint,2,opt,name=watch_id,proto3" json:"watch_id,omitempty"`
|
||||
WatchId int64 `protobuf:"varint,2,opt,name=watch_id,json=watchId,proto3" json:"watch_id,omitempty"`
|
||||
// created is set to true if the response is for a create watch request.
|
||||
// The client should record the watch_id and expect to receive events for
|
||||
// the created watcher from the same stream.
|
||||
|
|
@ -1146,7 +1146,7 @@ type WatchResponse struct {
|
|||
//
|
||||
// The client should treat the watcher as canceled and should not try to create any
|
||||
// watcher with the same start_revision again.
|
||||
CompactRevision int64 `protobuf:"varint,5,opt,name=compact_revision,proto3" json:"compact_revision,omitempty"`
|
||||
CompactRevision int64 `protobuf:"varint,5,opt,name=compact_revision,json=compactRevision,proto3" json:"compact_revision,omitempty"`
|
||||
Events []*mvccpb.Event `protobuf:"bytes,11,rep,name=events" json:"events,omitempty"`
|
||||
}
|
||||
|
||||
|
|
@ -1171,9 +1171,9 @@ func (m *WatchResponse) GetEvents() []*mvccpb.Event {
|
|||
|
||||
type LeaseGrantRequest struct {
|
||||
// TTL is the advisory time-to-live in seconds.
|
||||
TTL int64 `protobuf:"varint,1,opt,name=TTL,proto3" json:"TTL,omitempty"`
|
||||
TTL int64 `protobuf:"varint,1,opt,name=TTL,json=tTL,proto3" json:"TTL,omitempty"`
|
||||
// ID is the requested ID for the lease. If ID is set to 0, the lessor chooses an ID.
|
||||
ID int64 `protobuf:"varint,2,opt,name=ID,proto3" json:"ID,omitempty"`
|
||||
ID int64 `protobuf:"varint,2,opt,name=ID,json=iD,proto3" json:"ID,omitempty"`
|
||||
}
|
||||
|
||||
func (m *LeaseGrantRequest) Reset() { *m = LeaseGrantRequest{} }
|
||||
|
|
@ -1184,9 +1184,9 @@ func (*LeaseGrantRequest) Descriptor() ([]byte, []int) { return fileDescriptorRp
|
|||
type LeaseGrantResponse struct {
|
||||
Header *ResponseHeader `protobuf:"bytes,1,opt,name=header" json:"header,omitempty"`
|
||||
// ID is the lease ID for the granted lease.
|
||||
ID int64 `protobuf:"varint,2,opt,name=ID,proto3" json:"ID,omitempty"`
|
||||
ID int64 `protobuf:"varint,2,opt,name=ID,json=iD,proto3" json:"ID,omitempty"`
|
||||
// TTL is the server chosen lease time-to-live in seconds.
|
||||
TTL int64 `protobuf:"varint,3,opt,name=TTL,proto3" json:"TTL,omitempty"`
|
||||
TTL int64 `protobuf:"varint,3,opt,name=TTL,json=tTL,proto3" json:"TTL,omitempty"`
|
||||
Error string `protobuf:"bytes,4,opt,name=error,proto3" json:"error,omitempty"`
|
||||
}
|
||||
|
||||
|
|
@ -1204,7 +1204,7 @@ func (m *LeaseGrantResponse) GetHeader() *ResponseHeader {
|
|||
|
||||
type LeaseRevokeRequest struct {
|
||||
// ID is the lease ID to revoke. When the ID is revoked, all associated keys will be deleted.
|
||||
ID int64 `protobuf:"varint,1,opt,name=ID,proto3" json:"ID,omitempty"`
|
||||
ID int64 `protobuf:"varint,1,opt,name=ID,json=iD,proto3" json:"ID,omitempty"`
|
||||
}
|
||||
|
||||
func (m *LeaseRevokeRequest) Reset() { *m = LeaseRevokeRequest{} }
|
||||
|
|
@ -1230,7 +1230,7 @@ func (m *LeaseRevokeResponse) GetHeader() *ResponseHeader {
|
|||
|
||||
type LeaseKeepAliveRequest struct {
|
||||
// ID is the lease ID for the lease to keep alive.
|
||||
ID int64 `protobuf:"varint,1,opt,name=ID,proto3" json:"ID,omitempty"`
|
||||
ID int64 `protobuf:"varint,1,opt,name=ID,json=iD,proto3" json:"ID,omitempty"`
|
||||
}
|
||||
|
||||
func (m *LeaseKeepAliveRequest) Reset() { *m = LeaseKeepAliveRequest{} }
|
||||
|
|
@ -1241,9 +1241,9 @@ func (*LeaseKeepAliveRequest) Descriptor() ([]byte, []int) { return fileDescript
|
|||
type LeaseKeepAliveResponse struct {
|
||||
Header *ResponseHeader `protobuf:"bytes,1,opt,name=header" json:"header,omitempty"`
|
||||
// ID is the lease ID from the keep alive request.
|
||||
ID int64 `protobuf:"varint,2,opt,name=ID,proto3" json:"ID,omitempty"`
|
||||
ID int64 `protobuf:"varint,2,opt,name=ID,json=iD,proto3" json:"ID,omitempty"`
|
||||
// TTL is the new time-to-live for the lease.
|
||||
TTL int64 `protobuf:"varint,3,opt,name=TTL,proto3" json:"TTL,omitempty"`
|
||||
TTL int64 `protobuf:"varint,3,opt,name=TTL,json=tTL,proto3" json:"TTL,omitempty"`
|
||||
}
|
||||
|
||||
func (m *LeaseKeepAliveResponse) Reset() { *m = LeaseKeepAliveResponse{} }
|
||||
|
|
@ -1260,7 +1260,7 @@ func (m *LeaseKeepAliveResponse) GetHeader() *ResponseHeader {
|
|||
|
||||
type Member struct {
|
||||
// ID is the member ID for this member.
|
||||
ID uint64 `protobuf:"varint,1,opt,name=ID,proto3" json:"ID,omitempty"`
|
||||
ID uint64 `protobuf:"varint,1,opt,name=ID,json=iD,proto3" json:"ID,omitempty"`
|
||||
// name is the human-readable name of the member. If the member is not started, the name will be an empty string.
|
||||
Name string `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
|
||||
// peerURLs is the list of URLs the member exposes to the cluster for communication.
|
||||
|
|
@ -1311,7 +1311,7 @@ func (m *MemberAddResponse) GetMember() *Member {
|
|||
|
||||
type MemberRemoveRequest struct {
|
||||
// ID is the member ID of the member to remove.
|
||||
ID uint64 `protobuf:"varint,1,opt,name=ID,proto3" json:"ID,omitempty"`
|
||||
ID uint64 `protobuf:"varint,1,opt,name=ID,json=iD,proto3" json:"ID,omitempty"`
|
||||
}
|
||||
|
||||
func (m *MemberRemoveRequest) Reset() { *m = MemberRemoveRequest{} }
|
||||
|
|
@ -1337,7 +1337,7 @@ func (m *MemberRemoveResponse) GetHeader() *ResponseHeader {
|
|||
|
||||
type MemberUpdateRequest struct {
|
||||
// ID is the member ID of the member to update.
|
||||
ID uint64 `protobuf:"varint,1,opt,name=ID,proto3" json:"ID,omitempty"`
|
||||
ID uint64 `protobuf:"varint,1,opt,name=ID,json=iD,proto3" json:"ID,omitempty"`
|
||||
// peerURLs is the new list of URLs the member will use to communicate with the cluster.
|
||||
PeerURLs []string `protobuf:"bytes,2,rep,name=peerURLs" json:"peerURLs,omitempty"`
|
||||
}
|
||||
|
|
@ -13966,152 +13966,166 @@ var (
|
|||
)
|
||||
|
||||
var fileDescriptorRpc = []byte{
|
||||
// 2339 bytes of a gzipped FileDescriptorProto
|
||||
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|
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|
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|
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|
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0x85, 0xe8, 0x28, 0x34, 0xa0, 0x8c, 0x82, 0x51, 0x0a, 0x46, 0x5b, 0x14, 0x81, 0x7c, 0x0f, 0xae,
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0xe5, 0xcd, 0x7c, 0x94, 0x37, 0x0b, 0x1b, 0x75, 0xa8, 0x09, 0x87, 0x1c, 0x4d, 0x59, 0x1c, 0x3a,
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0xbf, 0xcb, 0x01, 0x74, 0x5e, 0x8d, 0x54, 0xc2, 0x78, 0x00, 0xe5, 0xae, 0x00, 0xc7, 0x0d, 0x62,
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0x39, 0xf1, 0x5a, 0xa2, 0x8f, 0x5d, 0xc5, 0x85, 0xb9, 0xa1, 0x1c, 0x4c, 0xbb, 0x5d, 0x1a, 0xa8,
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0x24, 0x6a, 0x1f, 0x5a, 0xe3, 0x9c, 0xbb, 0x8a, 0x95, 0x49, 0x3d, 0xf7, 0xfa, 0x83, 0x29, 0xcf,
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0xaa, 0x6f, 0x94, 0x92, 0xac, 0xce, 0x6f, 0x73, 0x50, 0xe5, 0xba, 0x66, 0xca, 0x4b, 0xef, 0x42,
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0x85, 0xab, 0x41, 0x7b, 0x32, 0x33, 0x2d, 0xb8, 0x11, 0x81, 0xfc, 0x04, 0xf3, 0xa3, 0x94, 0x0b,
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0xa4, 0x6e, 0x37, 0x93, 0x61, 0x85, 0x72, 0x11, 0xb7, 0xb3, 0x0d, 0x57, 0xb9, 0x7b, 0xba, 0x21,
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0x9b, 0x90, 0x0e, 0x35, 0x2f, 0xfa, 0x9c, 0x75, 0xd1, 0xe3, 0xdc, 0xe4, 0xf4, 0x3c, 0xe8, 0x77,
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0xbd, 0xe0, 0x54, 0xaa, 0xe4, 0xfc, 0x1c, 0x6a, 0x62, 0x98, 0xc9, 0x8d, 0x78, 0x2b, 0x9e, 0x22,
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0x0a, 0x57, 0x7c, 0xd1, 0xe5, 0xdf, 0xce, 0x55, 0xb8, 0xb2, 0x3f, 0xf2, 0x26, 0xc1, 0xe9, 0x58,
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0x25, 0x5a, 0x56, 0xc6, 0x2d, 0x45, 0xb4, 0x4c, 0x2b, 0x7e, 0x04, 0x57, 0x7c, 0x3a, 0xf4, 0xfa,
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0xa3, 0xfe, 0xe8, 0xe4, 0xe8, 0xf8, 0x3c, 0xa4, 0x81, 0xac, 0xf2, 0xea, 0x9a, 0xbc, 0xc1, 0xa8,
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0x4c, 0xb5, 0xe3, 0xc1, 0xf8, 0x58, 0x9e, 0x75, 0xfe, 0xed, 0xfc, 0x1e, 0xef, 0x9c, 0x67, 0x5e,
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0xd8, 0x55, 0x5e, 0x20, 0x5b, 0x50, 0xd7, 0x27, 0x9c, 0x53, 0xa4, 0x2e, 0x56, 0xb6, 0xe7, 0x32,
|
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0x9b, 0xf2, 0xc4, 0xab, 0x6c, 0xbf, 0xd8, 0x35, 0x09, 0x1c, 0xca, 0x1b, 0x75, 0xe9, 0x40, 0x43,
|
||||
0xe5, 0xd3, 0xa1, 0x38, 0xa3, 0x09, 0x65, 0x12, 0x36, 0xae, 0x44, 0x37, 0xa1, 0x38, 0x9f, 0xdf,
|
||||
0xe6, 0x80, 0xcc, 0xea, 0xf0, 0x5d, 0x8b, 0xd0, 0x7b, 0x50, 0x0f, 0xf0, 0xd8, 0x87, 0x47, 0x56,
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||||
0x0d, 0xbc, 0xc8, 0xa9, 0x3a, 0x4b, 0xa1, 0x87, 0xb1, 0xf8, 0x3e, 0xc1, 0x90, 0x0e, 0x8e, 0x46,
|
||||
0xe3, 0xb0, 0xff, 0xfc, 0x9c, 0x67, 0xc6, 0x05, 0xb7, 0xae, 0xc8, 0xbb, 0x9c, 0xea, 0x3c, 0x50,
|
||||
0x4a, 0x99, 0xca, 0x93, 0x1b, 0xb0, 0xf0, 0x92, 0x51, 0x55, 0x75, 0x8e, 0x57, 0x3e, 0x1f, 0x6f,
|
||||
0xf5, 0x9c, 0x7f, 0xe0, 0x05, 0x28, 0xdd, 0x9f, 0x29, 0x06, 0xcc, 0x25, 0xf2, 0xb1, 0x25, 0x58,
|
||||
0xbd, 0x21, 0xb6, 0xa5, 0x27, 0x2b, 0x35, 0x35, 0x64, 0xe7, 0x4c, 0x78, 0x19, 0xa7, 0x84, 0x3d,
|
||||
0x7a, 0x8c, 0x89, 0x7e, 0xa9, 0x2b, 0xce, 0x99, 0x95, 0xe9, 0xdd, 0x2b, 0x92, 0xae, 0xbd, 0x73,
|
||||
0x0f, 0x4a, 0xf4, 0x8c, 0x8e, 0xc2, 0x60, 0xb5, 0xca, 0xf3, 0xc2, 0xa2, 0x2a, 0x17, 0xdb, 0x8c,
|
||||
0xea, 0xca, 0x49, 0xe7, 0xc7, 0x70, 0x75, 0x87, 0xd5, 0x75, 0x8f, 0xd0, 0xfb, 0x66, 0x85, 0xd8,
|
||||
0xe9, 0xec, 0x48, 0xaf, 0x14, 0xc2, 0xce, 0x0e, 0xa9, 0x43, 0x7e, 0xab, 0x25, 0x6d, 0xc8, 0xf7,
|
||||
0x5b, 0xce, 0x2f, 0x71, 0xa3, 0x4d, 0xb9, 0x4c, 0x6e, 0xb2, 0xc0, 0xd5, 0xf2, 0x85, 0x68, 0x79,
|
||||
0x2c, 0x45, 0xa9, 0xef, 0x8f, 0x7d, 0xee, 0x90, 0x8a, 0x2b, 0x06, 0xce, 0x5d, 0xa9, 0x03, 0xda,
|
||||
0x3c, 0x7e, 0xa1, 0x83, 0x4d, 0xa0, 0xe5, 0xb4, 0xaa, 0xdb, 0xb0, 0x1c, 0xe3, 0xca, 0x94, 0x9c,
|
||||
0x3e, 0x82, 0x6b, 0x1c, 0x6c, 0x9b, 0xd2, 0x49, 0x73, 0xd0, 0x3f, 0x4b, 0x5d, 0x75, 0x02, 0xd7,
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||||
0x6d, 0xc6, 0xff, 0xaf, 0x8f, 0x9c, 0x53, 0x28, 0x3d, 0xe1, 0xfd, 0xa3, 0xa1, 0x4b, 0x91, 0xf3,
|
||||
0x62, 0x86, 0x19, 0x79, 0x43, 0x51, 0xdd, 0x57, 0x5c, 0xfe, 0xcd, 0xb3, 0x39, 0xa5, 0xfe, 0x81,
|
||||
0xbb, 0x23, 0x2e, 0x8e, 0x8a, 0xab, 0xc7, 0xe4, 0x16, 0xeb, 0x5c, 0xfb, 0x18, 0x1e, 0x7c, 0xb6,
|
||||
0xc8, 0x67, 0x0d, 0x0a, 0x76, 0x50, 0x4b, 0x62, 0xa5, 0x66, 0xaf, 0x67, 0xdc, 0x1c, 0x1a, 0x2f,
|
||||
0x17, 0xc7, 0x73, 0x5e, 0xc2, 0x55, 0x83, 0x3f, 0x93, 0x1b, 0x3e, 0x81, 0x92, 0x68, 0x92, 0x65,
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||||
0xd2, 0x5a, 0x89, 0x4b, 0x89, 0x65, 0x5c, 0xc9, 0xe3, 0xdc, 0x83, 0x65, 0x49, 0xa1, 0xc3, 0x71,
|
||||
0xd2, 0x5e, 0x71, 0xff, 0x38, 0x3b, 0xb0, 0x12, 0x67, 0xcb, 0x14, 0x22, 0x4d, 0xb5, 0xe8, 0xc1,
|
||||
0xa4, 0x67, 0xe4, 0x40, 0x7b, 0x53, 0x4c, 0x87, 0xe5, 0x2d, 0x87, 0x69, 0x85, 0x14, 0x44, 0x26,
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||||
0x85, 0x96, 0x95, 0xfb, 0x77, 0xfa, 0x81, 0xbe, 0xe9, 0x5e, 0x03, 0x31, 0x89, 0x99, 0x36, 0x65,
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||||
0x0d, 0xca, 0xc2, 0xe1, 0xaa, 0xaa, 0x4a, 0xde, 0x15, 0xc5, 0xc4, 0x14, 0x6a, 0xd1, 0xe7, 0xbe,
|
||||
0x77, 0x32, 0xa4, 0x3a, 0xe7, 0xb0, 0x12, 0xc2, 0x24, 0x66, 0xb2, 0xf8, 0x4f, 0x78, 0x7d, 0x36,
|
||||
0x07, 0x9e, 0x3f, 0x54, 0xce, 0x7f, 0x08, 0x25, 0x51, 0x9b, 0xc8, 0x42, 0xfe, 0xc3, 0x38, 0x8c,
|
||||
0xc9, 0x2b, 0x06, 0x4d, 0x51, 0xc9, 0x48, 0x29, 0xb6, 0x59, 0xf2, 0x6d, 0xa6, 0x65, 0xbd, 0xd5,
|
||||
0xb4, 0xc8, 0x0f, 0x60, 0xde, 0x63, 0x22, 0xfc, 0x2c, 0xd6, 0xd7, 0xdf, 0x49, 0x80, 0xee, 0x9c,
|
||||
0x4f, 0xa8, 0x2b, 0xb8, 0x9c, 0xcf, 0xa0, 0x6a, 0xac, 0xc0, 0xaa, 0xde, 0x47, 0xed, 0x0e, 0x96,
|
||||
0xc2, 0x35, 0x58, 0x68, 0x6e, 0x76, 0xb6, 0x0e, 0x45, 0x31, 0x5c, 0x07, 0x68, 0xb5, 0xf5, 0x38,
|
||||
0x8f, 0x55, 0x90, 0x90, 0x92, 0x27, 0xdc, 0xd4, 0x27, 0x97, 0xa6, 0x4f, 0xfe, 0xad, 0xf4, 0x79,
|
||||
0x05, 0x8b, 0xd2, 0xfc, 0x4c, 0x31, 0xf0, 0x29, 0x7a, 0x98, 0xc1, 0xa8, 0x10, 0xb8, 0x91, 0xb0,
|
||||
0xac, 0x3a, 0x9d, 0x82, 0xd1, 0xc1, 0xea, 0x61, 0x3f, 0xf4, 0xc2, 0x69, 0xa0, 0x42, 0xe0, 0x8f,
|
||||
0x39, 0xa8, 0x2b, 0x4a, 0xd6, 0x66, 0x5e, 0xf5, 0x4a, 0x22, 0xe7, 0xe9, 0x4e, 0xe9, 0x3a, 0x94,
|
||||
0x7a, 0xc7, 0xfb, 0xfd, 0xd7, 0xea, 0x51, 0x43, 0x8e, 0x18, 0x7d, 0x20, 0xd6, 0x11, 0x2f, 0x6a,
|
||||
0x72, 0xc4, 0xca, 0x6f, 0xf6, 0xb6, 0xb6, 0x35, 0xea, 0xd1, 0x57, 0xfc, 0xa6, 0x2d, 0xba, 0x11,
|
||||
0x81, 0x97, 0xcb, 0xf2, 0xe5, 0x8d, 0x37, 0x52, 0xe6, 0x4b, 0x1c, 0x06, 0x79, 0x73, 0x1a, 0x9e,
|
||||
0xb6, 0x47, 0xec, 0xd1, 0x49, 0x59, 0xb8, 0x02, 0x84, 0x11, 0x5b, 0xfd, 0xc0, 0xa4, 0xb6, 0x61,
|
||||
0x99, 0x51, 0x31, 0xee, 0xb1, 0x98, 0x8e, 0x32, 0x86, 0x4a, 0xdb, 0x39, 0x2b, 0x6d, 0x7b, 0x41,
|
||||
0xf0, 0x72, 0xec, 0xf7, 0xa4, 0x69, 0x7a, 0xec, 0xb4, 0x04, 0xf8, 0x41, 0x10, 0x4b, 0xcc, 0xdf,
|
||||
0x15, 0x65, 0x25, 0x42, 0x79, 0x44, 0xf5, 0xe9, 0xfc, 0x18, 0xae, 0x29, 0xaa, 0x6c, 0x9c, 0xd3,
|
||||
0xe1, 0x9d, 0x3d, 0x78, 0x4f, 0x31, 0x6f, 0x9e, 0xb2, 0xa2, 0xee, 0xa9, 0x04, 0xff, 0x5f, 0x75,
|
||||
0x7a, 0x08, 0x2b, 0x5a, 0x27, 0xb3, 0x4e, 0x41, 0x9c, 0x69, 0x20, 0x63, 0x03, 0x71, 0xd8, 0x37,
|
||||
0xa3, 0xf9, 0xe3, 0x81, 0xbe, 0xec, 0xd8, 0xb7, 0xf3, 0x4e, 0xa4, 0x7d, 0xac, 0x56, 0x70, 0xee,
|
||||
0x0b, 0x63, 0x5d, 0x64, 0xba, 0xd8, 0x65, 0xca, 0x2d, 0x8c, 0xd3, 0x70, 0x8b, 0x04, 0x66, 0xd4,
|
||||
0x98, 0x5b, 0x1c, 0x57, 0x68, 0xcc, 0xd9, 0x2d, 0x8d, 0x67, 0x2c, 0xff, 0x10, 0x8a, 0x13, 0x2a,
|
||||
0xcf, 0x6b, 0x75, 0x9d, 0xac, 0x89, 0xd7, 0xe5, 0xb5, 0xa7, 0x48, 0xeb, 0x07, 0x2c, 0x6a, 0x5d,
|
||||
0x3e, 0x6f, 0x2e, 0x16, 0xb7, 0xe2, 0x4b, 0xa1, 0x9b, 0x0a, 0xb5, 0x4c, 0xa9, 0x73, 0x5b, 0xc4,
|
||||
0xa2, 0x8e, 0xd0, 0x4c, 0x60, 0xc7, 0xc2, 0x0b, 0x51, 0x60, 0x67, 0x3a, 0xd5, 0x58, 0x04, 0x86,
|
||||
0x68, 0xb5, 0x3a, 0xd3, 0x62, 0xa0, 0x14, 0xd6, 0x51, 0x7f, 0x19, 0xd6, 0xeb, 0xe0, 0xcf, 0x04,
|
||||
0xb6, 0x0b, 0xd7, 0xed, 0x33, 0x93, 0x09, 0xef, 0x10, 0x6e, 0xa5, 0x1d, 0xab, 0x4c, 0xb8, 0x4f,
|
||||
0xa2, 0xd3, 0x71, 0x09, 0xd5, 0xbc, 0x69, 0xf6, 0xa5, 0x94, 0xdc, 0x72, 0x4f, 0xf4, 0x19, 0xbd,
|
||||
0x2c, 0xb0, 0x4b, 0xdb, 0x60, 0xf3, 0xf4, 0x5f, 0xc6, 0x46, 0x18, 0x49, 0xe3, 0xb2, 0xd4, 0xbb,
|
||||
0x8c, 0x8d, 0xf8, 0xbe, 0x03, 0x15, 0x5d, 0x3d, 0x18, 0x7f, 0x38, 0xa9, 0x42, 0x79, 0x77, 0x6f,
|
||||
0xff, 0x69, 0x73, 0x13, 0xeb, 0x96, 0xf5, 0x7f, 0xe6, 0x21, 0xbf, 0x7d, 0x48, 0x36, 0x60, 0x5e,
|
||||
0x3c, 0xf9, 0x5e, 0xf0, 0x28, 0xde, 0xb8, 0xe8, 0xf1, 0xd8, 0x99, 0x23, 0x9f, 0x43, 0x81, 0x3d,
|
||||
0xfa, 0xa6, 0xbe, 0x8a, 0x37, 0xd2, 0x1f, 0x8e, 0x51, 0xba, 0x03, 0x55, 0xe3, 0x85, 0x97, 0xbc,
|
||||
0xf1, 0x55, 0xbc, 0xf1, 0xe6, 0xd7, 0x63, 0xa1, 0x53, 0xe7, 0xd5, 0xc8, 0xd6, 0x29, 0x7a, 0x91,
|
||||
0xb4, 0x75, 0x32, 0xde, 0xff, 0x50, 0x7a, 0x57, 0xbe, 0x2c, 0x77, 0x43, 0xf2, 0x7e, 0xc2, 0x43,
|
||||
0xa5, 0xf9, 0x12, 0xd7, 0xb8, 0x9d, 0xce, 0xa0, 0xf0, 0xd6, 0xf7, 0x60, 0x9e, 0xbf, 0x52, 0x90,
|
||||
0x2f, 0xd4, 0x47, 0x23, 0xe1, 0x0d, 0x27, 0xc5, 0xdd, 0xb1, 0xf7, 0x0d, 0x67, 0xee, 0x7e, 0xee,
|
||||
0x87, 0xb9, 0xf5, 0x6f, 0xf3, 0x30, 0xcf, 0xbb, 0x56, 0xf2, 0x15, 0x40, 0xd4, 0xde, 0xdb, 0xda,
|
||||
0xce, 0x3c, 0x18, 0xd8, 0xda, 0xce, 0xbe, 0x0c, 0x88, 0x1d, 0x31, 0xfa, 0x70, 0x92, 0x24, 0x12,
|
||||
0xbb, 0xd6, 0xec, 0x1d, 0x49, 0x68, 0xe2, 0x11, 0xd5, 0x83, 0x7a, 0xbc, 0xcf, 0x26, 0x77, 0x12,
|
||||
0xc4, 0xec, 0x76, 0xbd, 0x71, 0xf7, 0x62, 0xa6, 0x98, 0x57, 0xfe, 0x92, 0xc7, 0x7d, 0x13, 0x7f,
|
||||
0xb7, 0xc5, 0x2d, 0xac, 0xe8, 0x56, 0x96, 0xdc, 0x4a, 0x6a, 0x73, 0xa2, 0x3a, 0xa2, 0xf1, 0x7e,
|
||||
0xea, 0xbc, 0x56, 0xff, 0x19, 0xd4, 0xcc, 0xd6, 0x93, 0x7c, 0x90, 0xd8, 0x39, 0x99, 0xdd, 0x6b,
|
||||
0xc3, 0xb9, 0x88, 0x65, 0x16, 0x58, 0xb4, 0x90, 0xc9, 0xc0, 0xb1, 0x0e, 0x35, 0x19, 0x38, 0xde,
|
||||
0x81, 0x22, 0x30, 0x46, 0x46, 0xd4, 0x38, 0x92, 0x44, 0x13, 0x8d, 0x3e, 0xd3, 0x8e, 0x8c, 0xd9,
|
||||
0x9e, 0x13, 0xe3, 0xf8, 0x3f, 0x79, 0xa8, 0x3e, 0xf1, 0xfa, 0xa3, 0x90, 0x8e, 0xd8, 0x43, 0x17,
|
||||
0xcb, 0x1e, 0x3c, 0xd1, 0xd8, 0xe1, 0x6c, 0xb6, 0x69, 0x76, 0x38, 0xc7, 0x7a, 0x18, 0x54, 0xb3,
|
||||
0x0d, 0x25, 0xd1, 0x4a, 0x10, 0x8b, 0x31, 0xd6, 0x72, 0x34, 0xde, 0x4d, 0x9e, 0x34, 0xad, 0x8d,
|
||||
0xba, 0x52, 0xdb, 0xda, 0x99, 0x26, 0xb6, 0x71, 0x3b, 0x9d, 0x41, 0x43, 0xfe, 0x0c, 0x8a, 0xec,
|
||||
0x41, 0x9b, 0x58, 0xa9, 0xc2, 0x78, 0xf3, 0x6e, 0x34, 0x92, 0xa6, 0x34, 0xc0, 0x13, 0x58, 0x50,
|
||||
0x6f, 0xd4, 0xe4, 0x3d, 0x4b, 0xff, 0xf8, 0x7b, 0x76, 0xe3, 0x56, 0xda, 0xb4, 0x02, 0xc3, 0xf0,
|
||||
0xfe, 0x6b, 0x05, 0x8a, 0xec, 0x9e, 0x60, 0xb6, 0x46, 0x65, 0xa4, 0x6d, 0xeb, 0x4c, 0x2f, 0x63,
|
||||
0xdb, 0x3a, 0x5b, 0x81, 0x8a, 0x33, 0x6f, 0x54, 0x93, 0x24, 0x41, 0x24, 0xde, 0x0a, 0xd9, 0x67,
|
||||
0x3e, 0xa1, 0x14, 0x15, 0xb1, 0x6d, 0x96, 0x95, 0x24, 0x41, 0xc8, 0xea, 0xa5, 0xec, 0xd8, 0x4e,
|
||||
0xaa, 0x4a, 0x11, 0xf8, 0x29, 0x94, 0x65, 0x1d, 0x99, 0xa4, 0x6a, 0xbc, 0xb1, 0x4a, 0x52, 0xd5,
|
||||
0x2a, 0x42, 0x23, 0x44, 0xac, 0x35, 0xd2, 0x10, 0xa3, 0x6e, 0x22, 0x0d, 0xd1, 0x28, 0x54, 0x10,
|
||||
0xf1, 0x6b, 0x80, 0xa8, 0xa2, 0xb4, 0x93, 0x5d, 0x62, 0x8f, 0x66, 0x27, 0xbb, 0xe4, 0xa2, 0x14,
|
||||
0xa1, 0xbf, 0x01, 0x32, 0x5b, 0x5c, 0x92, 0x8f, 0x93, 0xa5, 0x13, 0x3b, 0xbb, 0xc6, 0x27, 0x6f,
|
||||
0xc7, 0xac, 0x97, 0x3c, 0x84, 0x8a, 0xae, 0x3b, 0x89, 0x93, 0x62, 0xbf, 0x79, 0xd3, 0xdc, 0xb9,
|
||||
0x90, 0xc7, 0xf6, 0x92, 0xbc, 0x6b, 0x52, 0x84, 0xe2, 0xd7, 0xcd, 0xdd, 0x8b, 0x99, 0xcc, 0x2d,
|
||||
0x95, 0xb5, 0x68, 0xd2, 0x96, 0xc6, 0x5b, 0xc9, 0xa4, 0x2d, 0xb5, 0x0a, 0xd9, 0x08, 0x31, 0x25,
|
||||
0x48, 0xe2, 0x2d, 0x67, 0x1a, 0xe2, 0x4c, 0x90, 0x44, 0x55, 0x69, 0x92, 0xf9, 0x33, 0x1d, 0x6b,
|
||||
0x92, 0xf9, 0xb3, 0x85, 0xad, 0xd8, 0x31, 0x5d, 0xa0, 0x26, 0xed, 0x98, 0xdd, 0xf2, 0x36, 0xee,
|
||||
0x5c, 0xc8, 0x63, 0xab, 0x9c, 0xbe, 0x63, 0x33, 0x7d, 0x6f, 0x9a, 0xca, 0xf6, 0x8e, 0x6d, 0xd4,
|
||||
0xfe, 0xf0, 0xf7, 0x5b, 0xb9, 0x3f, 0xe3, 0xbf, 0xbf, 0xe1, 0xbf, 0xe3, 0x12, 0xff, 0x1f, 0x5b,
|
||||
0x3f, 0xfa, 0x6f, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xf4, 0xad, 0xd4, 0x1a, 0x26, 0x00, 0x00,
|
||||
}
|
||||
|
|
|
|||
|
|
@ -311,10 +311,10 @@ message TxnResponse {
|
|||
repeated ResponseUnion responses = 3;
|
||||
}
|
||||
|
||||
// CompactionRequest compacts the key-value store upto a given revision. All superseded keys
|
||||
// CompactionRequest compacts the key-value store up to a given revision. All superseded keys
|
||||
// with a revision less than the compaction revision will be removed.
|
||||
message CompactionRequest {
|
||||
// revision is the key-value store revision for the compation operation.
|
||||
// revision is the key-value store revision for the compaction operation.
|
||||
int64 revision = 1;
|
||||
// physical is set so the RPC will wait until the compaction is physically
|
||||
// applied to the local database such that compacted entries are totally
|
||||
|
|
|
|||
|
|
@ -61,9 +61,9 @@ type KeyValue struct {
|
|||
// key is the key in bytes. An empty key is not allowed.
|
||||
Key []byte `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
|
||||
// create_revision is the revision of last creation on this key.
|
||||
CreateRevision int64 `protobuf:"varint,2,opt,name=create_revision,proto3" json:"create_revision,omitempty"`
|
||||
CreateRevision int64 `protobuf:"varint,2,opt,name=create_revision,json=createRevision,proto3" json:"create_revision,omitempty"`
|
||||
// mod_revision is the revision of last modification on this key.
|
||||
ModRevision int64 `protobuf:"varint,3,opt,name=mod_revision,proto3" json:"mod_revision,omitempty"`
|
||||
ModRevision int64 `protobuf:"varint,3,opt,name=mod_revision,json=modRevision,proto3" json:"mod_revision,omitempty"`
|
||||
// version is the version of the key. A deletion resets
|
||||
// the version to zero and any modification of the key
|
||||
// increases its version.
|
||||
|
|
@ -662,21 +662,23 @@ var (
|
|||
)
|
||||
|
||||
var fileDescriptorKv = []byte{
|
||||
// 255 bytes of a gzipped FileDescriptorProto
|
||||
// 285 bytes of a gzipped FileDescriptorProto
|
||||
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0xe2, 0xe2, 0xc8, 0x2e, 0xd3, 0x2b,
|
||||
0x28, 0xca, 0x2f, 0xc9, 0x17, 0x62, 0xcb, 0x2d, 0x4b, 0x4e, 0x2e, 0x48, 0x92, 0x12, 0x49, 0xcf,
|
||||
0x4f, 0xcf, 0x07, 0x0b, 0xe9, 0x83, 0x58, 0x10, 0x59, 0xa5, 0x52, 0x2e, 0x0e, 0xef, 0xd4, 0xca,
|
||||
0xb0, 0xc4, 0x9c, 0xd2, 0x54, 0x21, 0x6e, 0x2e, 0xe6, 0xec, 0xd4, 0x4a, 0x09, 0x46, 0x05, 0x46,
|
||||
0x0d, 0x1e, 0x21, 0x71, 0x2e, 0xfe, 0xe4, 0xa2, 0xd4, 0xc4, 0x92, 0xd4, 0xf8, 0xa2, 0xd4, 0xb2,
|
||||
0xcc, 0xe2, 0xcc, 0xfc, 0x3c, 0x09, 0x26, 0xa0, 0x04, 0xb3, 0x90, 0x08, 0x17, 0x4f, 0x6e, 0x7e,
|
||||
0x0a, 0x42, 0x94, 0x19, 0x2c, 0xca, 0xcf, 0xc5, 0x5e, 0x96, 0x5a, 0x04, 0x16, 0x60, 0x01, 0x0b,
|
||||
0xf0, 0x72, 0xb1, 0x96, 0x81, 0x4c, 0x95, 0x60, 0x05, 0x1b, 0x07, 0xe4, 0xe6, 0xa4, 0x26, 0x16,
|
||||
0xa7, 0x4a, 0xb0, 0x81, 0x64, 0x95, 0xaa, 0xb8, 0x58, 0x5d, 0xcb, 0x52, 0xf3, 0x4a, 0x84, 0x54,
|
||||
0xb9, 0x58, 0x4a, 0x2a, 0x0b, 0x52, 0xc1, 0x96, 0xf2, 0x19, 0x89, 0xeb, 0x41, 0x1c, 0xab, 0x07,
|
||||
0x96, 0x84, 0x90, 0x21, 0x40, 0x69, 0x21, 0x19, 0x2e, 0xa6, 0xec, 0x32, 0xb0, 0x03, 0xb8, 0x8d,
|
||||
0x04, 0x60, 0x8a, 0x60, 0x0e, 0x57, 0xd2, 0xe1, 0xe2, 0x44, 0x28, 0x65, 0xe7, 0x62, 0x0e, 0x08,
|
||||
0x0d, 0x11, 0x60, 0x10, 0xe2, 0xe2, 0x62, 0x73, 0x71, 0xf5, 0x71, 0x0d, 0x71, 0x15, 0x60, 0x04,
|
||||
0xb1, 0x5d, 0x23, 0x02, 0x3c, 0x83, 0x5c, 0x05, 0x98, 0x9c, 0x44, 0x4e, 0x3c, 0x94, 0x63, 0xb8,
|
||||
0x00, 0xc4, 0x27, 0x1e, 0xc9, 0x31, 0x5e, 0x00, 0xe2, 0x07, 0x40, 0x9c, 0xc4, 0x06, 0x0e, 0x0f,
|
||||
0x63, 0x40, 0x00, 0x00, 0x00, 0xff, 0xff, 0x4a, 0x2d, 0xc3, 0x10, 0x39, 0x01, 0x00, 0x00,
|
||||
0x4f, 0xcf, 0x07, 0x0b, 0xe9, 0x83, 0x58, 0x10, 0x59, 0xa5, 0x75, 0x8c, 0x5c, 0x1c, 0xde, 0xa9,
|
||||
0x95, 0x61, 0x89, 0x39, 0xa5, 0xa9, 0x42, 0x02, 0x5c, 0xcc, 0xd9, 0xa9, 0x95, 0x12, 0x8c, 0x0a,
|
||||
0x8c, 0x1a, 0x3c, 0x41, 0x20, 0xa6, 0x90, 0x3a, 0x17, 0x7f, 0x72, 0x51, 0x6a, 0x62, 0x49, 0x6a,
|
||||
0x7c, 0x51, 0x6a, 0x59, 0x66, 0x71, 0x66, 0x7e, 0x9e, 0x04, 0x13, 0x50, 0x96, 0x39, 0x88, 0x0f,
|
||||
0x22, 0x1c, 0x04, 0x15, 0x15, 0x52, 0xe4, 0xe2, 0xc9, 0xcd, 0x4f, 0x41, 0xa8, 0x62, 0x06, 0xab,
|
||||
0xe2, 0x06, 0x8a, 0xc1, 0x95, 0x48, 0x70, 0xb1, 0x97, 0xa5, 0x16, 0x81, 0x65, 0x59, 0xc0, 0xb2,
|
||||
0x30, 0xae, 0x90, 0x08, 0x17, 0x6b, 0x19, 0xc8, 0x01, 0x12, 0xac, 0x60, 0x9b, 0x21, 0x1c, 0x90,
|
||||
0x68, 0x4e, 0x6a, 0x62, 0x71, 0xaa, 0x04, 0x1b, 0x58, 0x35, 0x84, 0xa3, 0xd4, 0xc2, 0xc8, 0xc5,
|
||||
0xea, 0x5a, 0x96, 0x9a, 0x57, 0x22, 0xa4, 0xcd, 0xc5, 0x52, 0x52, 0x59, 0x90, 0x0a, 0x76, 0x2e,
|
||||
0x9f, 0x91, 0xb8, 0x1e, 0xc4, 0x9f, 0x7a, 0x60, 0x49, 0x08, 0x19, 0x02, 0x94, 0x0e, 0x02, 0x2b,
|
||||
0x12, 0x52, 0xe0, 0x62, 0xca, 0x2e, 0x03, 0xbb, 0x9d, 0xdb, 0x48, 0x00, 0xa6, 0x14, 0xe6, 0xf1,
|
||||
0x20, 0xa0, 0x9c, 0x92, 0x0e, 0x17, 0x27, 0x5c, 0x93, 0x10, 0x3b, 0x17, 0x73, 0x40, 0x68, 0x88,
|
||||
0x00, 0x83, 0x10, 0x17, 0x17, 0x9b, 0x8b, 0xab, 0x8f, 0x6b, 0x88, 0xab, 0x00, 0x23, 0x88, 0xed,
|
||||
0x1a, 0x11, 0xe0, 0x19, 0xe4, 0x2a, 0xc0, 0xe4, 0x24, 0x72, 0xe2, 0xa1, 0x1c, 0xc3, 0x05, 0x20,
|
||||
0x3e, 0xf1, 0x48, 0x8e, 0xf1, 0x02, 0x10, 0x3f, 0x00, 0xe2, 0x24, 0x36, 0x70, 0xa0, 0x1a, 0x03,
|
||||
0x02, 0x00, 0x00, 0xff, 0xff, 0x80, 0xae, 0xe6, 0x9d, 0x7e, 0x01, 0x00, 0x00,
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,92 +0,0 @@
|
|||
// Copyright 2016 CoreOS, Inc.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package compress
|
||||
|
||||
import "io"
|
||||
|
||||
type Type int
|
||||
|
||||
const (
|
||||
NoCompress Type = iota
|
||||
Snappy
|
||||
Lz4
|
||||
)
|
||||
|
||||
var (
|
||||
headers = [...]string{
|
||||
"",
|
||||
"snappy",
|
||||
"lz4",
|
||||
}
|
||||
)
|
||||
|
||||
func (ct Type) String() string {
|
||||
return headers[ct]
|
||||
}
|
||||
|
||||
func ParseType(opt string) Type {
|
||||
switch opt {
|
||||
case "snappy":
|
||||
return Snappy
|
||||
|
||||
case "lz4":
|
||||
return Lz4
|
||||
|
||||
default:
|
||||
return NoCompress
|
||||
}
|
||||
}
|
||||
|
||||
type Compressor interface {
|
||||
// Do compresses p into w.
|
||||
Do(w io.Writer, p []byte) error
|
||||
|
||||
// Type returns the compression algorithm the Compressor uses.
|
||||
Type() string
|
||||
}
|
||||
|
||||
func NewCompressor(ct Type) Compressor {
|
||||
switch ct {
|
||||
case Snappy:
|
||||
return NewSnappyCompressor()
|
||||
|
||||
case Lz4:
|
||||
return NewLz4Compressor()
|
||||
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
type Decompressor interface {
|
||||
// Do reads the data from r and uncompress them.
|
||||
Do(r io.Reader) ([]byte, error)
|
||||
|
||||
// Type returns the compression algorithm the Decompressor uses.
|
||||
Type() string
|
||||
}
|
||||
|
||||
func NewDecompressor(ct Type) Decompressor {
|
||||
switch ct {
|
||||
case Snappy:
|
||||
return NewSnappyDecompressor()
|
||||
|
||||
case Lz4:
|
||||
return NewLz4Decompressor()
|
||||
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
|
@ -1,16 +0,0 @@
|
|||
// Copyright 2016 CoreOS, Inc.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
// Package compress wraps compression algorithms.
|
||||
package compress
|
||||
|
|
@ -1,59 +0,0 @@
|
|||
// Copyright 2016 CoreOS, Inc.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package compress
|
||||
|
||||
import (
|
||||
"io"
|
||||
"io/ioutil"
|
||||
|
||||
"github.com/bkaradzic/go-lz4"
|
||||
)
|
||||
|
||||
func NewLz4Compressor() Compressor {
|
||||
return lz4Compressor{}
|
||||
}
|
||||
|
||||
type lz4Compressor struct{}
|
||||
|
||||
func (_ lz4Compressor) Do(w io.Writer, p []byte) error {
|
||||
bts, err := lz4.Encode(nil, p)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
_, err = w.Write(bts)
|
||||
return err
|
||||
}
|
||||
|
||||
func (_ lz4Compressor) Type() string {
|
||||
return headers[Lz4]
|
||||
}
|
||||
|
||||
func NewLz4Decompressor() Decompressor {
|
||||
return lz4Decompressor{}
|
||||
}
|
||||
|
||||
type lz4Decompressor struct{}
|
||||
|
||||
func (_ lz4Decompressor) Do(r io.Reader) ([]byte, error) {
|
||||
src, err := ioutil.ReadAll(r)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return lz4.Decode(nil, src)
|
||||
}
|
||||
|
||||
func (_ lz4Decompressor) Type() string {
|
||||
return headers[Lz4]
|
||||
}
|
||||
|
|
@ -1,79 +0,0 @@
|
|||
// Copyright 2016 CoreOS, Inc.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package compress
|
||||
|
||||
import (
|
||||
"io"
|
||||
"io/ioutil"
|
||||
"sync"
|
||||
|
||||
"github.com/golang/snappy"
|
||||
)
|
||||
|
||||
var (
|
||||
snappyWriterPool sync.Pool
|
||||
snappyReaderPool sync.Pool
|
||||
)
|
||||
|
||||
func NewSnappyCompressor() Compressor {
|
||||
return snappyCompressor{}
|
||||
}
|
||||
|
||||
type snappyCompressor struct{}
|
||||
|
||||
func (_ snappyCompressor) Do(w io.Writer, p []byte) error {
|
||||
var writer *snappy.Writer
|
||||
if wp := snappyWriterPool.Get(); wp != nil {
|
||||
writer = wp.(*snappy.Writer)
|
||||
writer.Reset(w)
|
||||
} else {
|
||||
writer = snappy.NewBufferedWriter(w)
|
||||
}
|
||||
if _, err := writer.Write(p); err != nil {
|
||||
writer.Close()
|
||||
snappyWriterPool.Put(writer)
|
||||
return err
|
||||
}
|
||||
werr := writer.Close()
|
||||
snappyWriterPool.Put(writer)
|
||||
return werr
|
||||
}
|
||||
|
||||
func (_ snappyCompressor) Type() string {
|
||||
return headers[Snappy]
|
||||
}
|
||||
|
||||
func NewSnappyDecompressor() Decompressor {
|
||||
return snappyDecompressor{}
|
||||
}
|
||||
|
||||
type snappyDecompressor struct{}
|
||||
|
||||
func (_ snappyDecompressor) Do(r io.Reader) ([]byte, error) {
|
||||
var reader *snappy.Reader
|
||||
if wp := snappyReaderPool.Get(); wp != nil {
|
||||
reader = wp.(*snappy.Reader)
|
||||
reader.Reset(r)
|
||||
} else {
|
||||
reader = snappy.NewReader(r)
|
||||
}
|
||||
bts, err := ioutil.ReadAll(reader)
|
||||
snappyReaderPool.Put(reader)
|
||||
return bts, err
|
||||
}
|
||||
|
||||
func (_ snappyDecompressor) Type() string {
|
||||
return headers[Snappy]
|
||||
}
|
||||
|
|
@ -1,16 +0,0 @@
|
|||
cmd/snappytool/snappytool
|
||||
testdata/bench
|
||||
|
||||
# These explicitly listed benchmark data files are for an obsolete version of
|
||||
# snappy_test.go.
|
||||
testdata/alice29.txt
|
||||
testdata/asyoulik.txt
|
||||
testdata/fireworks.jpeg
|
||||
testdata/geo.protodata
|
||||
testdata/html
|
||||
testdata/html_x_4
|
||||
testdata/kppkn.gtb
|
||||
testdata/lcet10.txt
|
||||
testdata/paper-100k.pdf
|
||||
testdata/plrabn12.txt
|
||||
testdata/urls.10K
|
||||
|
|
@ -1,15 +0,0 @@
|
|||
# This is the official list of Snappy-Go authors for copyright purposes.
|
||||
# This file is distinct from the CONTRIBUTORS files.
|
||||
# See the latter for an explanation.
|
||||
|
||||
# Names should be added to this file as
|
||||
# Name or Organization <email address>
|
||||
# The email address is not required for organizations.
|
||||
|
||||
# Please keep the list sorted.
|
||||
|
||||
Damian Gryski <dgryski@gmail.com>
|
||||
Google Inc.
|
||||
Jan Mercl <0xjnml@gmail.com>
|
||||
Rodolfo Carvalho <rhcarvalho@gmail.com>
|
||||
Sebastien Binet <seb.binet@gmail.com>
|
||||
|
|
@ -1,37 +0,0 @@
|
|||
# This is the official list of people who can contribute
|
||||
# (and typically have contributed) code to the Snappy-Go repository.
|
||||
# The AUTHORS file lists the copyright holders; this file
|
||||
# lists people. For example, Google employees are listed here
|
||||
# but not in AUTHORS, because Google holds the copyright.
|
||||
#
|
||||
# The submission process automatically checks to make sure
|
||||
# that people submitting code are listed in this file (by email address).
|
||||
#
|
||||
# Names should be added to this file only after verifying that
|
||||
# the individual or the individual's organization has agreed to
|
||||
# the appropriate Contributor License Agreement, found here:
|
||||
#
|
||||
# http://code.google.com/legal/individual-cla-v1.0.html
|
||||
# http://code.google.com/legal/corporate-cla-v1.0.html
|
||||
#
|
||||
# The agreement for individuals can be filled out on the web.
|
||||
#
|
||||
# When adding J Random Contributor's name to this file,
|
||||
# either J's name or J's organization's name should be
|
||||
# added to the AUTHORS file, depending on whether the
|
||||
# individual or corporate CLA was used.
|
||||
|
||||
# Names should be added to this file like so:
|
||||
# Name <email address>
|
||||
|
||||
# Please keep the list sorted.
|
||||
|
||||
Damian Gryski <dgryski@gmail.com>
|
||||
Jan Mercl <0xjnml@gmail.com>
|
||||
Kai Backman <kaib@golang.org>
|
||||
Marc-Antoine Ruel <maruel@chromium.org>
|
||||
Nigel Tao <nigeltao@golang.org>
|
||||
Rob Pike <r@golang.org>
|
||||
Rodolfo Carvalho <rhcarvalho@gmail.com>
|
||||
Russ Cox <rsc@golang.org>
|
||||
Sebastien Binet <seb.binet@gmail.com>
|
||||
|
|
@ -1,27 +0,0 @@
|
|||
Copyright (c) 2011 The Snappy-Go Authors. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above
|
||||
copyright notice, this list of conditions and the following disclaimer
|
||||
in the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
* Neither the name of Google Inc. nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
|
@ -1,107 +0,0 @@
|
|||
The Snappy compression format in the Go programming language.
|
||||
|
||||
To download and install from source:
|
||||
$ go get github.com/golang/snappy
|
||||
|
||||
Unless otherwise noted, the Snappy-Go source files are distributed
|
||||
under the BSD-style license found in the LICENSE file.
|
||||
|
||||
|
||||
|
||||
Benchmarks.
|
||||
|
||||
The golang/snappy benchmarks include compressing (Z) and decompressing (U) ten
|
||||
or so files, the same set used by the C++ Snappy code (github.com/google/snappy
|
||||
and note the "google", not "golang"). On an "Intel(R) Core(TM) i7-3770 CPU @
|
||||
3.40GHz", Go's GOARCH=amd64 numbers as of 2016-04-29:
|
||||
|
||||
"go test -test.bench=."
|
||||
|
||||
_UFlat0-8 2.23GB/s ± 1% html
|
||||
_UFlat1-8 1.43GB/s ± 0% urls
|
||||
_UFlat2-8 23.7GB/s ± 1% jpg
|
||||
_UFlat3-8 1.93GB/s ± 0% jpg_200
|
||||
_UFlat4-8 13.9GB/s ± 2% pdf
|
||||
_UFlat5-8 2.00GB/s ± 0% html4
|
||||
_UFlat6-8 829MB/s ± 0% txt1
|
||||
_UFlat7-8 799MB/s ± 0% txt2
|
||||
_UFlat8-8 871MB/s ± 0% txt3
|
||||
_UFlat9-8 730MB/s ± 0% txt4
|
||||
_UFlat10-8 2.87GB/s ± 0% pb
|
||||
_UFlat11-8 1.07GB/s ± 0% gaviota
|
||||
|
||||
_ZFlat0-8 1.04GB/s ± 0% html
|
||||
_ZFlat1-8 536MB/s ± 0% urls
|
||||
_ZFlat2-8 16.3GB/s ± 2% jpg
|
||||
_ZFlat3-8 762MB/s ± 0% jpg_200
|
||||
_ZFlat4-8 9.48GB/s ± 1% pdf
|
||||
_ZFlat5-8 990MB/s ± 0% html4
|
||||
_ZFlat6-8 381MB/s ± 0% txt1
|
||||
_ZFlat7-8 353MB/s ± 0% txt2
|
||||
_ZFlat8-8 398MB/s ± 0% txt3
|
||||
_ZFlat9-8 329MB/s ± 0% txt4
|
||||
_ZFlat10-8 1.35GB/s ± 1% pb
|
||||
_ZFlat11-8 608MB/s ± 0% gaviota
|
||||
|
||||
|
||||
|
||||
"go test -test.bench=. -tags=noasm"
|
||||
|
||||
_UFlat0-8 637MB/s ± 0% html
|
||||
_UFlat1-8 506MB/s ± 0% urls
|
||||
_UFlat2-8 23.0GB/s ± 5% jpg
|
||||
_UFlat3-8 1.17GB/s ± 0% jpg_200
|
||||
_UFlat4-8 4.44GB/s ± 1% pdf
|
||||
_UFlat5-8 623MB/s ± 0% html4
|
||||
_UFlat6-8 300MB/s ± 1% txt1
|
||||
_UFlat7-8 293MB/s ± 0% txt2
|
||||
_UFlat8-8 316MB/s ± 0% txt3
|
||||
_UFlat9-8 285MB/s ± 0% txt4
|
||||
_UFlat10-8 768MB/s ± 0% pb
|
||||
_UFlat11-8 406MB/s ± 1% gaviota
|
||||
|
||||
_ZFlat0-8 411MB/s ± 1% html
|
||||
_ZFlat1-8 250MB/s ± 1% urls
|
||||
_ZFlat2-8 12.7GB/s ± 1% jpg
|
||||
_ZFlat3-8 157MB/s ± 0% jpg_200
|
||||
_ZFlat4-8 2.95GB/s ± 0% pdf
|
||||
_ZFlat5-8 406MB/s ± 0% html4
|
||||
_ZFlat6-8 182MB/s ± 0% txt1
|
||||
_ZFlat7-8 173MB/s ± 1% txt2
|
||||
_ZFlat8-8 191MB/s ± 0% txt3
|
||||
_ZFlat9-8 166MB/s ± 0% txt4
|
||||
_ZFlat10-8 480MB/s ± 0% pb
|
||||
_ZFlat11-8 272MB/s ± 0% gaviota
|
||||
|
||||
|
||||
|
||||
For comparison (Go's encoded output is byte-for-byte identical to C++'s), here
|
||||
are the numbers from C++ Snappy's
|
||||
|
||||
make CXXFLAGS="-O2 -DNDEBUG -g" clean snappy_unittest.log && cat snappy_unittest.log
|
||||
|
||||
BM_UFlat/0 2.4GB/s html
|
||||
BM_UFlat/1 1.4GB/s urls
|
||||
BM_UFlat/2 21.8GB/s jpg
|
||||
BM_UFlat/3 1.5GB/s jpg_200
|
||||
BM_UFlat/4 13.3GB/s pdf
|
||||
BM_UFlat/5 2.1GB/s html4
|
||||
BM_UFlat/6 1.0GB/s txt1
|
||||
BM_UFlat/7 959.4MB/s txt2
|
||||
BM_UFlat/8 1.0GB/s txt3
|
||||
BM_UFlat/9 864.5MB/s txt4
|
||||
BM_UFlat/10 2.9GB/s pb
|
||||
BM_UFlat/11 1.2GB/s gaviota
|
||||
|
||||
BM_ZFlat/0 944.3MB/s html (22.31 %)
|
||||
BM_ZFlat/1 501.6MB/s urls (47.78 %)
|
||||
BM_ZFlat/2 14.3GB/s jpg (99.95 %)
|
||||
BM_ZFlat/3 538.3MB/s jpg_200 (73.00 %)
|
||||
BM_ZFlat/4 8.3GB/s pdf (83.30 %)
|
||||
BM_ZFlat/5 903.5MB/s html4 (22.52 %)
|
||||
BM_ZFlat/6 336.0MB/s txt1 (57.88 %)
|
||||
BM_ZFlat/7 312.3MB/s txt2 (61.91 %)
|
||||
BM_ZFlat/8 353.1MB/s txt3 (54.99 %)
|
||||
BM_ZFlat/9 289.9MB/s txt4 (66.26 %)
|
||||
BM_ZFlat/10 1.2GB/s pb (19.68 %)
|
||||
BM_ZFlat/11 527.4MB/s gaviota (37.72 %)
|
||||
|
|
@ -1,241 +0,0 @@
|
|||
// Copyright 2011 The Snappy-Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package snappy
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"errors"
|
||||
"io"
|
||||
)
|
||||
|
||||
var (
|
||||
// ErrCorrupt reports that the input is invalid.
|
||||
ErrCorrupt = errors.New("snappy: corrupt input")
|
||||
// ErrTooLarge reports that the uncompressed length is too large.
|
||||
ErrTooLarge = errors.New("snappy: decoded block is too large")
|
||||
// ErrUnsupported reports that the input isn't supported.
|
||||
ErrUnsupported = errors.New("snappy: unsupported input")
|
||||
|
||||
errUnsupportedCopy4Tag = errors.New("snappy: unsupported COPY_4 tag")
|
||||
errUnsupportedLiteralLength = errors.New("snappy: unsupported literal length")
|
||||
)
|
||||
|
||||
// DecodedLen returns the length of the decoded block.
|
||||
func DecodedLen(src []byte) (int, error) {
|
||||
v, _, err := decodedLen(src)
|
||||
return v, err
|
||||
}
|
||||
|
||||
// decodedLen returns the length of the decoded block and the number of bytes
|
||||
// that the length header occupied.
|
||||
func decodedLen(src []byte) (blockLen, headerLen int, err error) {
|
||||
v, n := binary.Uvarint(src)
|
||||
if n <= 0 || v > 0xffffffff {
|
||||
return 0, 0, ErrCorrupt
|
||||
}
|
||||
|
||||
const wordSize = 32 << (^uint(0) >> 32 & 1)
|
||||
if wordSize == 32 && v > 0x7fffffff {
|
||||
return 0, 0, ErrTooLarge
|
||||
}
|
||||
return int(v), n, nil
|
||||
}
|
||||
|
||||
const (
|
||||
decodeErrCodeCorrupt = 1
|
||||
decodeErrCodeUnsupportedLiteralLength = 2
|
||||
decodeErrCodeUnsupportedCopy4Tag = 3
|
||||
)
|
||||
|
||||
// Decode returns the decoded form of src. The returned slice may be a sub-
|
||||
// slice of dst if dst was large enough to hold the entire decoded block.
|
||||
// Otherwise, a newly allocated slice will be returned.
|
||||
//
|
||||
// The dst and src must not overlap. It is valid to pass a nil dst.
|
||||
func Decode(dst, src []byte) ([]byte, error) {
|
||||
dLen, s, err := decodedLen(src)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if dLen <= len(dst) {
|
||||
dst = dst[:dLen]
|
||||
} else {
|
||||
dst = make([]byte, dLen)
|
||||
}
|
||||
switch decode(dst, src[s:]) {
|
||||
case 0:
|
||||
return dst, nil
|
||||
case decodeErrCodeUnsupportedLiteralLength:
|
||||
return nil, errUnsupportedLiteralLength
|
||||
case decodeErrCodeUnsupportedCopy4Tag:
|
||||
return nil, errUnsupportedCopy4Tag
|
||||
}
|
||||
return nil, ErrCorrupt
|
||||
}
|
||||
|
||||
// NewReader returns a new Reader that decompresses from r, using the framing
|
||||
// format described at
|
||||
// https://github.com/google/snappy/blob/master/framing_format.txt
|
||||
func NewReader(r io.Reader) *Reader {
|
||||
return &Reader{
|
||||
r: r,
|
||||
decoded: make([]byte, maxBlockSize),
|
||||
buf: make([]byte, maxEncodedLenOfMaxBlockSize+checksumSize),
|
||||
}
|
||||
}
|
||||
|
||||
// Reader is an io.Reader that can read Snappy-compressed bytes.
|
||||
type Reader struct {
|
||||
r io.Reader
|
||||
err error
|
||||
decoded []byte
|
||||
buf []byte
|
||||
// decoded[i:j] contains decoded bytes that have not yet been passed on.
|
||||
i, j int
|
||||
readHeader bool
|
||||
}
|
||||
|
||||
// Reset discards any buffered data, resets all state, and switches the Snappy
|
||||
// reader to read from r. This permits reusing a Reader rather than allocating
|
||||
// a new one.
|
||||
func (r *Reader) Reset(reader io.Reader) {
|
||||
r.r = reader
|
||||
r.err = nil
|
||||
r.i = 0
|
||||
r.j = 0
|
||||
r.readHeader = false
|
||||
}
|
||||
|
||||
func (r *Reader) readFull(p []byte, allowEOF bool) (ok bool) {
|
||||
if _, r.err = io.ReadFull(r.r, p); r.err != nil {
|
||||
if r.err == io.ErrUnexpectedEOF || (r.err == io.EOF && !allowEOF) {
|
||||
r.err = ErrCorrupt
|
||||
}
|
||||
return false
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// Read satisfies the io.Reader interface.
|
||||
func (r *Reader) Read(p []byte) (int, error) {
|
||||
if r.err != nil {
|
||||
return 0, r.err
|
||||
}
|
||||
for {
|
||||
if r.i < r.j {
|
||||
n := copy(p, r.decoded[r.i:r.j])
|
||||
r.i += n
|
||||
return n, nil
|
||||
}
|
||||
if !r.readFull(r.buf[:4], true) {
|
||||
return 0, r.err
|
||||
}
|
||||
chunkType := r.buf[0]
|
||||
if !r.readHeader {
|
||||
if chunkType != chunkTypeStreamIdentifier {
|
||||
r.err = ErrCorrupt
|
||||
return 0, r.err
|
||||
}
|
||||
r.readHeader = true
|
||||
}
|
||||
chunkLen := int(r.buf[1]) | int(r.buf[2])<<8 | int(r.buf[3])<<16
|
||||
if chunkLen > len(r.buf) {
|
||||
r.err = ErrUnsupported
|
||||
return 0, r.err
|
||||
}
|
||||
|
||||
// The chunk types are specified at
|
||||
// https://github.com/google/snappy/blob/master/framing_format.txt
|
||||
switch chunkType {
|
||||
case chunkTypeCompressedData:
|
||||
// Section 4.2. Compressed data (chunk type 0x00).
|
||||
if chunkLen < checksumSize {
|
||||
r.err = ErrCorrupt
|
||||
return 0, r.err
|
||||
}
|
||||
buf := r.buf[:chunkLen]
|
||||
if !r.readFull(buf, false) {
|
||||
return 0, r.err
|
||||
}
|
||||
checksum := uint32(buf[0]) | uint32(buf[1])<<8 | uint32(buf[2])<<16 | uint32(buf[3])<<24
|
||||
buf = buf[checksumSize:]
|
||||
|
||||
n, err := DecodedLen(buf)
|
||||
if err != nil {
|
||||
r.err = err
|
||||
return 0, r.err
|
||||
}
|
||||
if n > len(r.decoded) {
|
||||
r.err = ErrCorrupt
|
||||
return 0, r.err
|
||||
}
|
||||
if _, err := Decode(r.decoded, buf); err != nil {
|
||||
r.err = err
|
||||
return 0, r.err
|
||||
}
|
||||
if crc(r.decoded[:n]) != checksum {
|
||||
r.err = ErrCorrupt
|
||||
return 0, r.err
|
||||
}
|
||||
r.i, r.j = 0, n
|
||||
continue
|
||||
|
||||
case chunkTypeUncompressedData:
|
||||
// Section 4.3. Uncompressed data (chunk type 0x01).
|
||||
if chunkLen < checksumSize {
|
||||
r.err = ErrCorrupt
|
||||
return 0, r.err
|
||||
}
|
||||
buf := r.buf[:checksumSize]
|
||||
if !r.readFull(buf, false) {
|
||||
return 0, r.err
|
||||
}
|
||||
checksum := uint32(buf[0]) | uint32(buf[1])<<8 | uint32(buf[2])<<16 | uint32(buf[3])<<24
|
||||
// Read directly into r.decoded instead of via r.buf.
|
||||
n := chunkLen - checksumSize
|
||||
if n > len(r.decoded) {
|
||||
r.err = ErrCorrupt
|
||||
return 0, r.err
|
||||
}
|
||||
if !r.readFull(r.decoded[:n], false) {
|
||||
return 0, r.err
|
||||
}
|
||||
if crc(r.decoded[:n]) != checksum {
|
||||
r.err = ErrCorrupt
|
||||
return 0, r.err
|
||||
}
|
||||
r.i, r.j = 0, n
|
||||
continue
|
||||
|
||||
case chunkTypeStreamIdentifier:
|
||||
// Section 4.1. Stream identifier (chunk type 0xff).
|
||||
if chunkLen != len(magicBody) {
|
||||
r.err = ErrCorrupt
|
||||
return 0, r.err
|
||||
}
|
||||
if !r.readFull(r.buf[:len(magicBody)], false) {
|
||||
return 0, r.err
|
||||
}
|
||||
for i := 0; i < len(magicBody); i++ {
|
||||
if r.buf[i] != magicBody[i] {
|
||||
r.err = ErrCorrupt
|
||||
return 0, r.err
|
||||
}
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
if chunkType <= 0x7f {
|
||||
// Section 4.5. Reserved unskippable chunks (chunk types 0x02-0x7f).
|
||||
r.err = ErrUnsupported
|
||||
return 0, r.err
|
||||
}
|
||||
// Section 4.4 Padding (chunk type 0xfe).
|
||||
// Section 4.6. Reserved skippable chunks (chunk types 0x80-0xfd).
|
||||
if !r.readFull(r.buf[:chunkLen], false) {
|
||||
return 0, r.err
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -1,14 +0,0 @@
|
|||
// Copyright 2016 The Snappy-Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !appengine
|
||||
// +build gc
|
||||
// +build !noasm
|
||||
|
||||
package snappy
|
||||
|
||||
// decode has the same semantics as in decode_other.go.
|
||||
//
|
||||
//go:noescape
|
||||
func decode(dst, src []byte) int
|
||||
|
|
@ -1,476 +0,0 @@
|
|||
// Copyright 2016 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !appengine
|
||||
// +build gc
|
||||
// +build !noasm
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
// The asm code generally follows the pure Go code in decode_other.go, except
|
||||
// where marked with a "!!!".
|
||||
|
||||
// func decode(dst, src []byte) int
|
||||
//
|
||||
// All local variables fit into registers. The non-zero stack size is only to
|
||||
// spill registers and push args when issuing a CALL. The register allocation:
|
||||
// - AX scratch
|
||||
// - BX scratch
|
||||
// - CX length or x
|
||||
// - DX offset
|
||||
// - SI &src[s]
|
||||
// - DI &dst[d]
|
||||
// + R8 dst_base
|
||||
// + R9 dst_len
|
||||
// + R10 dst_base + dst_len
|
||||
// + R11 src_base
|
||||
// + R12 src_len
|
||||
// + R13 src_base + src_len
|
||||
// - R14 used by doCopy
|
||||
// - R15 used by doCopy
|
||||
//
|
||||
// The registers R8-R13 (marked with a "+") are set at the start of the
|
||||
// function, and after a CALL returns, and are not otherwise modified.
|
||||
//
|
||||
// The d variable is implicitly DI - R8, and len(dst)-d is R10 - DI.
|
||||
// The s variable is implicitly SI - R11, and len(src)-s is R13 - SI.
|
||||
TEXT ·decode(SB), NOSPLIT, $48-56
|
||||
// Initialize SI, DI and R8-R13.
|
||||
MOVQ dst_base+0(FP), R8
|
||||
MOVQ dst_len+8(FP), R9
|
||||
MOVQ R8, DI
|
||||
MOVQ R8, R10
|
||||
ADDQ R9, R10
|
||||
MOVQ src_base+24(FP), R11
|
||||
MOVQ src_len+32(FP), R12
|
||||
MOVQ R11, SI
|
||||
MOVQ R11, R13
|
||||
ADDQ R12, R13
|
||||
|
||||
loop:
|
||||
// for s < len(src)
|
||||
CMPQ SI, R13
|
||||
JEQ end
|
||||
|
||||
// CX = uint32(src[s])
|
||||
//
|
||||
// switch src[s] & 0x03
|
||||
MOVBLZX (SI), CX
|
||||
MOVL CX, BX
|
||||
ANDL $3, BX
|
||||
CMPL BX, $1
|
||||
JAE tagCopy
|
||||
|
||||
// ----------------------------------------
|
||||
// The code below handles literal tags.
|
||||
|
||||
// case tagLiteral:
|
||||
// x := uint32(src[s] >> 2)
|
||||
// switch
|
||||
SHRL $2, CX
|
||||
CMPL CX, $60
|
||||
JAE tagLit60Plus
|
||||
|
||||
// case x < 60:
|
||||
// s++
|
||||
INCQ SI
|
||||
|
||||
doLit:
|
||||
// This is the end of the inner "switch", when we have a literal tag.
|
||||
//
|
||||
// We assume that CX == x and x fits in a uint32, where x is the variable
|
||||
// used in the pure Go decode_other.go code.
|
||||
|
||||
// length = int(x) + 1
|
||||
//
|
||||
// Unlike the pure Go code, we don't need to check if length <= 0 because
|
||||
// CX can hold 64 bits, so the increment cannot overflow.
|
||||
INCQ CX
|
||||
|
||||
// Prepare to check if copying length bytes will run past the end of dst or
|
||||
// src.
|
||||
//
|
||||
// AX = len(dst) - d
|
||||
// BX = len(src) - s
|
||||
MOVQ R10, AX
|
||||
SUBQ DI, AX
|
||||
MOVQ R13, BX
|
||||
SUBQ SI, BX
|
||||
|
||||
// !!! Try a faster technique for short (16 or fewer bytes) copies.
|
||||
//
|
||||
// if length > 16 || len(dst)-d < 16 || len(src)-s < 16 {
|
||||
// goto callMemmove // Fall back on calling runtime·memmove.
|
||||
// }
|
||||
//
|
||||
// The C++ snappy code calls this TryFastAppend. It also checks len(src)-s
|
||||
// against 21 instead of 16, because it cannot assume that all of its input
|
||||
// is contiguous in memory and so it needs to leave enough source bytes to
|
||||
// read the next tag without refilling buffers, but Go's Decode assumes
|
||||
// contiguousness (the src argument is a []byte).
|
||||
CMPQ CX, $16
|
||||
JGT callMemmove
|
||||
CMPQ AX, $16
|
||||
JLT callMemmove
|
||||
CMPQ BX, $16
|
||||
JLT callMemmove
|
||||
|
||||
// !!! Implement the copy from src to dst as a 16-byte load and store.
|
||||
// (Decode's documentation says that dst and src must not overlap.)
|
||||
//
|
||||
// This always copies 16 bytes, instead of only length bytes, but that's
|
||||
// OK. If the input is a valid Snappy encoding then subsequent iterations
|
||||
// will fix up the overrun. Otherwise, Decode returns a nil []byte (and a
|
||||
// non-nil error), so the overrun will be ignored.
|
||||
//
|
||||
// Note that on amd64, it is legal and cheap to issue unaligned 8-byte or
|
||||
// 16-byte loads and stores. This technique probably wouldn't be as
|
||||
// effective on architectures that are fussier about alignment.
|
||||
MOVOU 0(SI), X0
|
||||
MOVOU X0, 0(DI)
|
||||
|
||||
// d += length
|
||||
// s += length
|
||||
ADDQ CX, DI
|
||||
ADDQ CX, SI
|
||||
JMP loop
|
||||
|
||||
callMemmove:
|
||||
// if length > len(dst)-d || length > len(src)-s { etc }
|
||||
CMPQ CX, AX
|
||||
JGT errCorrupt
|
||||
CMPQ CX, BX
|
||||
JGT errCorrupt
|
||||
|
||||
// copy(dst[d:], src[s:s+length])
|
||||
//
|
||||
// This means calling runtime·memmove(&dst[d], &src[s], length), so we push
|
||||
// DI, SI and CX as arguments. Coincidentally, we also need to spill those
|
||||
// three registers to the stack, to save local variables across the CALL.
|
||||
MOVQ DI, 0(SP)
|
||||
MOVQ SI, 8(SP)
|
||||
MOVQ CX, 16(SP)
|
||||
MOVQ DI, 24(SP)
|
||||
MOVQ SI, 32(SP)
|
||||
MOVQ CX, 40(SP)
|
||||
CALL runtime·memmove(SB)
|
||||
|
||||
// Restore local variables: unspill registers from the stack and
|
||||
// re-calculate R8-R13.
|
||||
MOVQ 24(SP), DI
|
||||
MOVQ 32(SP), SI
|
||||
MOVQ 40(SP), CX
|
||||
MOVQ dst_base+0(FP), R8
|
||||
MOVQ dst_len+8(FP), R9
|
||||
MOVQ R8, R10
|
||||
ADDQ R9, R10
|
||||
MOVQ src_base+24(FP), R11
|
||||
MOVQ src_len+32(FP), R12
|
||||
MOVQ R11, R13
|
||||
ADDQ R12, R13
|
||||
|
||||
// d += length
|
||||
// s += length
|
||||
ADDQ CX, DI
|
||||
ADDQ CX, SI
|
||||
JMP loop
|
||||
|
||||
tagLit60Plus:
|
||||
// !!! This fragment does the
|
||||
//
|
||||
// s += x - 58; if uint(s) > uint(len(src)) { etc }
|
||||
//
|
||||
// checks. In the asm version, we code it once instead of once per switch case.
|
||||
ADDQ CX, SI
|
||||
SUBQ $58, SI
|
||||
MOVQ SI, BX
|
||||
SUBQ R11, BX
|
||||
CMPQ BX, R12
|
||||
JA errCorrupt
|
||||
|
||||
// case x == 60:
|
||||
CMPL CX, $61
|
||||
JEQ tagLit61
|
||||
JA tagLit62Plus
|
||||
|
||||
// x = uint32(src[s-1])
|
||||
MOVBLZX -1(SI), CX
|
||||
JMP doLit
|
||||
|
||||
tagLit61:
|
||||
// case x == 61:
|
||||
// x = uint32(src[s-2]) | uint32(src[s-1])<<8
|
||||
MOVWLZX -2(SI), CX
|
||||
JMP doLit
|
||||
|
||||
tagLit62Plus:
|
||||
CMPL CX, $62
|
||||
JA tagLit63
|
||||
|
||||
// case x == 62:
|
||||
// x = uint32(src[s-3]) | uint32(src[s-2])<<8 | uint32(src[s-1])<<16
|
||||
MOVWLZX -3(SI), CX
|
||||
MOVBLZX -1(SI), BX
|
||||
SHLL $16, BX
|
||||
ORL BX, CX
|
||||
JMP doLit
|
||||
|
||||
tagLit63:
|
||||
// case x == 63:
|
||||
// x = uint32(src[s-4]) | uint32(src[s-3])<<8 | uint32(src[s-2])<<16 | uint32(src[s-1])<<24
|
||||
MOVL -4(SI), CX
|
||||
JMP doLit
|
||||
|
||||
// The code above handles literal tags.
|
||||
// ----------------------------------------
|
||||
// The code below handles copy tags.
|
||||
|
||||
tagCopy2:
|
||||
// case tagCopy2:
|
||||
// s += 3
|
||||
ADDQ $3, SI
|
||||
|
||||
// if uint(s) > uint(len(src)) { etc }
|
||||
MOVQ SI, BX
|
||||
SUBQ R11, BX
|
||||
CMPQ BX, R12
|
||||
JA errCorrupt
|
||||
|
||||
// length = 1 + int(src[s-3])>>2
|
||||
SHRQ $2, CX
|
||||
INCQ CX
|
||||
|
||||
// offset = int(src[s-2]) | int(src[s-1])<<8
|
||||
MOVWQZX -2(SI), DX
|
||||
JMP doCopy
|
||||
|
||||
tagCopy:
|
||||
// We have a copy tag. We assume that:
|
||||
// - BX == src[s] & 0x03
|
||||
// - CX == src[s]
|
||||
CMPQ BX, $2
|
||||
JEQ tagCopy2
|
||||
JA errUC4T
|
||||
|
||||
// case tagCopy1:
|
||||
// s += 2
|
||||
ADDQ $2, SI
|
||||
|
||||
// if uint(s) > uint(len(src)) { etc }
|
||||
MOVQ SI, BX
|
||||
SUBQ R11, BX
|
||||
CMPQ BX, R12
|
||||
JA errCorrupt
|
||||
|
||||
// offset = int(src[s-2])&0xe0<<3 | int(src[s-1])
|
||||
MOVQ CX, DX
|
||||
ANDQ $0xe0, DX
|
||||
SHLQ $3, DX
|
||||
MOVBQZX -1(SI), BX
|
||||
ORQ BX, DX
|
||||
|
||||
// length = 4 + int(src[s-2])>>2&0x7
|
||||
SHRQ $2, CX
|
||||
ANDQ $7, CX
|
||||
ADDQ $4, CX
|
||||
|
||||
doCopy:
|
||||
// This is the end of the outer "switch", when we have a copy tag.
|
||||
//
|
||||
// We assume that:
|
||||
// - CX == length && CX > 0
|
||||
// - DX == offset
|
||||
|
||||
// if offset <= 0 { etc }
|
||||
CMPQ DX, $0
|
||||
JLE errCorrupt
|
||||
|
||||
// if d < offset { etc }
|
||||
MOVQ DI, BX
|
||||
SUBQ R8, BX
|
||||
CMPQ BX, DX
|
||||
JLT errCorrupt
|
||||
|
||||
// if length > len(dst)-d { etc }
|
||||
MOVQ R10, BX
|
||||
SUBQ DI, BX
|
||||
CMPQ CX, BX
|
||||
JGT errCorrupt
|
||||
|
||||
// forwardCopy(dst[d:d+length], dst[d-offset:]); d += length
|
||||
//
|
||||
// Set:
|
||||
// - R14 = len(dst)-d
|
||||
// - R15 = &dst[d-offset]
|
||||
MOVQ R10, R14
|
||||
SUBQ DI, R14
|
||||
MOVQ DI, R15
|
||||
SUBQ DX, R15
|
||||
|
||||
// !!! Try a faster technique for short (16 or fewer bytes) forward copies.
|
||||
//
|
||||
// First, try using two 8-byte load/stores, similar to the doLit technique
|
||||
// above. Even if dst[d:d+length] and dst[d-offset:] can overlap, this is
|
||||
// still OK if offset >= 8. Note that this has to be two 8-byte load/stores
|
||||
// and not one 16-byte load/store, and the first store has to be before the
|
||||
// second load, due to the overlap if offset is in the range [8, 16).
|
||||
//
|
||||
// if length > 16 || offset < 8 || len(dst)-d < 16 {
|
||||
// goto slowForwardCopy
|
||||
// }
|
||||
// copy 16 bytes
|
||||
// d += length
|
||||
CMPQ CX, $16
|
||||
JGT slowForwardCopy
|
||||
CMPQ DX, $8
|
||||
JLT slowForwardCopy
|
||||
CMPQ R14, $16
|
||||
JLT slowForwardCopy
|
||||
MOVQ 0(R15), AX
|
||||
MOVQ AX, 0(DI)
|
||||
MOVQ 8(R15), BX
|
||||
MOVQ BX, 8(DI)
|
||||
ADDQ CX, DI
|
||||
JMP loop
|
||||
|
||||
slowForwardCopy:
|
||||
// !!! If the forward copy is longer than 16 bytes, or if offset < 8, we
|
||||
// can still try 8-byte load stores, provided we can overrun up to 10 extra
|
||||
// bytes. As above, the overrun will be fixed up by subsequent iterations
|
||||
// of the outermost loop.
|
||||
//
|
||||
// The C++ snappy code calls this technique IncrementalCopyFastPath. Its
|
||||
// commentary says:
|
||||
//
|
||||
// ----
|
||||
//
|
||||
// The main part of this loop is a simple copy of eight bytes at a time
|
||||
// until we've copied (at least) the requested amount of bytes. However,
|
||||
// if d and d-offset are less than eight bytes apart (indicating a
|
||||
// repeating pattern of length < 8), we first need to expand the pattern in
|
||||
// order to get the correct results. For instance, if the buffer looks like
|
||||
// this, with the eight-byte <d-offset> and <d> patterns marked as
|
||||
// intervals:
|
||||
//
|
||||
// abxxxxxxxxxxxx
|
||||
// [------] d-offset
|
||||
// [------] d
|
||||
//
|
||||
// a single eight-byte copy from <d-offset> to <d> will repeat the pattern
|
||||
// once, after which we can move <d> two bytes without moving <d-offset>:
|
||||
//
|
||||
// ababxxxxxxxxxx
|
||||
// [------] d-offset
|
||||
// [------] d
|
||||
//
|
||||
// and repeat the exercise until the two no longer overlap.
|
||||
//
|
||||
// This allows us to do very well in the special case of one single byte
|
||||
// repeated many times, without taking a big hit for more general cases.
|
||||
//
|
||||
// The worst case of extra writing past the end of the match occurs when
|
||||
// offset == 1 and length == 1; the last copy will read from byte positions
|
||||
// [0..7] and write to [4..11], whereas it was only supposed to write to
|
||||
// position 1. Thus, ten excess bytes.
|
||||
//
|
||||
// ----
|
||||
//
|
||||
// That "10 byte overrun" worst case is confirmed by Go's
|
||||
// TestSlowForwardCopyOverrun, which also tests the fixUpSlowForwardCopy
|
||||
// and finishSlowForwardCopy algorithm.
|
||||
//
|
||||
// if length > len(dst)-d-10 {
|
||||
// goto verySlowForwardCopy
|
||||
// }
|
||||
SUBQ $10, R14
|
||||
CMPQ CX, R14
|
||||
JGT verySlowForwardCopy
|
||||
|
||||
makeOffsetAtLeast8:
|
||||
// !!! As above, expand the pattern so that offset >= 8 and we can use
|
||||
// 8-byte load/stores.
|
||||
//
|
||||
// for offset < 8 {
|
||||
// copy 8 bytes from dst[d-offset:] to dst[d:]
|
||||
// length -= offset
|
||||
// d += offset
|
||||
// offset += offset
|
||||
// // The two previous lines together means that d-offset, and therefore
|
||||
// // R15, is unchanged.
|
||||
// }
|
||||
CMPQ DX, $8
|
||||
JGE fixUpSlowForwardCopy
|
||||
MOVQ (R15), BX
|
||||
MOVQ BX, (DI)
|
||||
SUBQ DX, CX
|
||||
ADDQ DX, DI
|
||||
ADDQ DX, DX
|
||||
JMP makeOffsetAtLeast8
|
||||
|
||||
fixUpSlowForwardCopy:
|
||||
// !!! Add length (which might be negative now) to d (implied by DI being
|
||||
// &dst[d]) so that d ends up at the right place when we jump back to the
|
||||
// top of the loop. Before we do that, though, we save DI to AX so that, if
|
||||
// length is positive, copying the remaining length bytes will write to the
|
||||
// right place.
|
||||
MOVQ DI, AX
|
||||
ADDQ CX, DI
|
||||
|
||||
finishSlowForwardCopy:
|
||||
// !!! Repeat 8-byte load/stores until length <= 0. Ending with a negative
|
||||
// length means that we overrun, but as above, that will be fixed up by
|
||||
// subsequent iterations of the outermost loop.
|
||||
CMPQ CX, $0
|
||||
JLE loop
|
||||
MOVQ (R15), BX
|
||||
MOVQ BX, (AX)
|
||||
ADDQ $8, R15
|
||||
ADDQ $8, AX
|
||||
SUBQ $8, CX
|
||||
JMP finishSlowForwardCopy
|
||||
|
||||
verySlowForwardCopy:
|
||||
// verySlowForwardCopy is a simple implementation of forward copy. In C
|
||||
// parlance, this is a do/while loop instead of a while loop, since we know
|
||||
// that length > 0. In Go syntax:
|
||||
//
|
||||
// for {
|
||||
// dst[d] = dst[d - offset]
|
||||
// d++
|
||||
// length--
|
||||
// if length == 0 {
|
||||
// break
|
||||
// }
|
||||
// }
|
||||
MOVB (R15), BX
|
||||
MOVB BX, (DI)
|
||||
INCQ R15
|
||||
INCQ DI
|
||||
DECQ CX
|
||||
JNZ verySlowForwardCopy
|
||||
JMP loop
|
||||
|
||||
// The code above handles copy tags.
|
||||
// ----------------------------------------
|
||||
|
||||
end:
|
||||
// This is the end of the "for s < len(src)".
|
||||
//
|
||||
// if d != len(dst) { etc }
|
||||
CMPQ DI, R10
|
||||
JNE errCorrupt
|
||||
|
||||
// return 0
|
||||
MOVQ $0, ret+48(FP)
|
||||
RET
|
||||
|
||||
errCorrupt:
|
||||
// return decodeErrCodeCorrupt
|
||||
MOVQ $1, ret+48(FP)
|
||||
RET
|
||||
|
||||
errUC4T:
|
||||
// return decodeErrCodeUnsupportedCopy4Tag
|
||||
MOVQ $3, ret+48(FP)
|
||||
RET
|
||||
|
|
@ -1,96 +0,0 @@
|
|||
// Copyright 2016 The Snappy-Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !amd64 appengine !gc noasm
|
||||
|
||||
package snappy
|
||||
|
||||
// decode writes the decoding of src to dst. It assumes that the varint-encoded
|
||||
// length of the decompressed bytes has already been read, and that len(dst)
|
||||
// equals that length.
|
||||
//
|
||||
// It returns 0 on success or a decodeErrCodeXxx error code on failure.
|
||||
func decode(dst, src []byte) int {
|
||||
var d, s, offset, length int
|
||||
for s < len(src) {
|
||||
switch src[s] & 0x03 {
|
||||
case tagLiteral:
|
||||
x := uint32(src[s] >> 2)
|
||||
switch {
|
||||
case x < 60:
|
||||
s++
|
||||
case x == 60:
|
||||
s += 2
|
||||
if uint(s) > uint(len(src)) { // The uint conversions catch overflow from the previous line.
|
||||
return decodeErrCodeCorrupt
|
||||
}
|
||||
x = uint32(src[s-1])
|
||||
case x == 61:
|
||||
s += 3
|
||||
if uint(s) > uint(len(src)) { // The uint conversions catch overflow from the previous line.
|
||||
return decodeErrCodeCorrupt
|
||||
}
|
||||
x = uint32(src[s-2]) | uint32(src[s-1])<<8
|
||||
case x == 62:
|
||||
s += 4
|
||||
if uint(s) > uint(len(src)) { // The uint conversions catch overflow from the previous line.
|
||||
return decodeErrCodeCorrupt
|
||||
}
|
||||
x = uint32(src[s-3]) | uint32(src[s-2])<<8 | uint32(src[s-1])<<16
|
||||
case x == 63:
|
||||
s += 5
|
||||
if uint(s) > uint(len(src)) { // The uint conversions catch overflow from the previous line.
|
||||
return decodeErrCodeCorrupt
|
||||
}
|
||||
x = uint32(src[s-4]) | uint32(src[s-3])<<8 | uint32(src[s-2])<<16 | uint32(src[s-1])<<24
|
||||
}
|
||||
length = int(x) + 1
|
||||
if length <= 0 {
|
||||
return decodeErrCodeUnsupportedLiteralLength
|
||||
}
|
||||
if length > len(dst)-d || length > len(src)-s {
|
||||
return decodeErrCodeCorrupt
|
||||
}
|
||||
copy(dst[d:], src[s:s+length])
|
||||
d += length
|
||||
s += length
|
||||
continue
|
||||
|
||||
case tagCopy1:
|
||||
s += 2
|
||||
if uint(s) > uint(len(src)) { // The uint conversions catch overflow from the previous line.
|
||||
return decodeErrCodeCorrupt
|
||||
}
|
||||
length = 4 + int(src[s-2])>>2&0x7
|
||||
offset = int(src[s-2])&0xe0<<3 | int(src[s-1])
|
||||
|
||||
case tagCopy2:
|
||||
s += 3
|
||||
if uint(s) > uint(len(src)) { // The uint conversions catch overflow from the previous line.
|
||||
return decodeErrCodeCorrupt
|
||||
}
|
||||
length = 1 + int(src[s-3])>>2
|
||||
offset = int(src[s-2]) | int(src[s-1])<<8
|
||||
|
||||
case tagCopy4:
|
||||
return decodeErrCodeUnsupportedCopy4Tag
|
||||
}
|
||||
|
||||
if offset <= 0 || d < offset || length > len(dst)-d {
|
||||
return decodeErrCodeCorrupt
|
||||
}
|
||||
// Copy from an earlier sub-slice of dst to a later sub-slice. Unlike
|
||||
// the built-in copy function, this byte-by-byte copy always runs
|
||||
// forwards, even if the slices overlap. Conceptually, this is:
|
||||
//
|
||||
// d += forwardCopy(dst[d:d+length], dst[d-offset:])
|
||||
for end := d + length; d != end; d++ {
|
||||
dst[d] = dst[d-offset]
|
||||
}
|
||||
}
|
||||
if d != len(dst) {
|
||||
return decodeErrCodeCorrupt
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
|
@ -1,285 +0,0 @@
|
|||
// Copyright 2011 The Snappy-Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package snappy
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"errors"
|
||||
"io"
|
||||
)
|
||||
|
||||
// Encode returns the encoded form of src. The returned slice may be a sub-
|
||||
// slice of dst if dst was large enough to hold the entire encoded block.
|
||||
// Otherwise, a newly allocated slice will be returned.
|
||||
//
|
||||
// The dst and src must not overlap. It is valid to pass a nil dst.
|
||||
func Encode(dst, src []byte) []byte {
|
||||
if n := MaxEncodedLen(len(src)); n < 0 {
|
||||
panic(ErrTooLarge)
|
||||
} else if len(dst) < n {
|
||||
dst = make([]byte, n)
|
||||
}
|
||||
|
||||
// The block starts with the varint-encoded length of the decompressed bytes.
|
||||
d := binary.PutUvarint(dst, uint64(len(src)))
|
||||
|
||||
for len(src) > 0 {
|
||||
p := src
|
||||
src = nil
|
||||
if len(p) > maxBlockSize {
|
||||
p, src = p[:maxBlockSize], p[maxBlockSize:]
|
||||
}
|
||||
if len(p) < minNonLiteralBlockSize {
|
||||
d += emitLiteral(dst[d:], p)
|
||||
} else {
|
||||
d += encodeBlock(dst[d:], p)
|
||||
}
|
||||
}
|
||||
return dst[:d]
|
||||
}
|
||||
|
||||
// inputMargin is the minimum number of extra input bytes to keep, inside
|
||||
// encodeBlock's inner loop. On some architectures, this margin lets us
|
||||
// implement a fast path for emitLiteral, where the copy of short (<= 16 byte)
|
||||
// literals can be implemented as a single load to and store from a 16-byte
|
||||
// register. That literal's actual length can be as short as 1 byte, so this
|
||||
// can copy up to 15 bytes too much, but that's OK as subsequent iterations of
|
||||
// the encoding loop will fix up the copy overrun, and this inputMargin ensures
|
||||
// that we don't overrun the dst and src buffers.
|
||||
const inputMargin = 16 - 1
|
||||
|
||||
// minNonLiteralBlockSize is the minimum size of the input to encodeBlock that
|
||||
// could be encoded with a copy tag. This is the minimum with respect to the
|
||||
// algorithm used by encodeBlock, not a minimum enforced by the file format.
|
||||
//
|
||||
// The encoded output must start with at least a 1 byte literal, as there are
|
||||
// no previous bytes to copy. A minimal (1 byte) copy after that, generated
|
||||
// from an emitCopy call in encodeBlock's main loop, would require at least
|
||||
// another inputMargin bytes, for the reason above: we want any emitLiteral
|
||||
// calls inside encodeBlock's main loop to use the fast path if possible, which
|
||||
// requires being able to overrun by inputMargin bytes. Thus,
|
||||
// minNonLiteralBlockSize equals 1 + 1 + inputMargin.
|
||||
//
|
||||
// The C++ code doesn't use this exact threshold, but it could, as discussed at
|
||||
// https://groups.google.com/d/topic/snappy-compression/oGbhsdIJSJ8/discussion
|
||||
// The difference between Go (2+inputMargin) and C++ (inputMargin) is purely an
|
||||
// optimization. It should not affect the encoded form. This is tested by
|
||||
// TestSameEncodingAsCppShortCopies.
|
||||
const minNonLiteralBlockSize = 1 + 1 + inputMargin
|
||||
|
||||
// MaxEncodedLen returns the maximum length of a snappy block, given its
|
||||
// uncompressed length.
|
||||
//
|
||||
// It will return a negative value if srcLen is too large to encode.
|
||||
func MaxEncodedLen(srcLen int) int {
|
||||
n := uint64(srcLen)
|
||||
if n > 0xffffffff {
|
||||
return -1
|
||||
}
|
||||
// Compressed data can be defined as:
|
||||
// compressed := item* literal*
|
||||
// item := literal* copy
|
||||
//
|
||||
// The trailing literal sequence has a space blowup of at most 62/60
|
||||
// since a literal of length 60 needs one tag byte + one extra byte
|
||||
// for length information.
|
||||
//
|
||||
// Item blowup is trickier to measure. Suppose the "copy" op copies
|
||||
// 4 bytes of data. Because of a special check in the encoding code,
|
||||
// we produce a 4-byte copy only if the offset is < 65536. Therefore
|
||||
// the copy op takes 3 bytes to encode, and this type of item leads
|
||||
// to at most the 62/60 blowup for representing literals.
|
||||
//
|
||||
// Suppose the "copy" op copies 5 bytes of data. If the offset is big
|
||||
// enough, it will take 5 bytes to encode the copy op. Therefore the
|
||||
// worst case here is a one-byte literal followed by a five-byte copy.
|
||||
// That is, 6 bytes of input turn into 7 bytes of "compressed" data.
|
||||
//
|
||||
// This last factor dominates the blowup, so the final estimate is:
|
||||
n = 32 + n + n/6
|
||||
if n > 0xffffffff {
|
||||
return -1
|
||||
}
|
||||
return int(n)
|
||||
}
|
||||
|
||||
var errClosed = errors.New("snappy: Writer is closed")
|
||||
|
||||
// NewWriter returns a new Writer that compresses to w.
|
||||
//
|
||||
// The Writer returned does not buffer writes. There is no need to Flush or
|
||||
// Close such a Writer.
|
||||
//
|
||||
// Deprecated: the Writer returned is not suitable for many small writes, only
|
||||
// for few large writes. Use NewBufferedWriter instead, which is efficient
|
||||
// regardless of the frequency and shape of the writes, and remember to Close
|
||||
// that Writer when done.
|
||||
func NewWriter(w io.Writer) *Writer {
|
||||
return &Writer{
|
||||
w: w,
|
||||
obuf: make([]byte, obufLen),
|
||||
}
|
||||
}
|
||||
|
||||
// NewBufferedWriter returns a new Writer that compresses to w, using the
|
||||
// framing format described at
|
||||
// https://github.com/google/snappy/blob/master/framing_format.txt
|
||||
//
|
||||
// The Writer returned buffers writes. Users must call Close to guarantee all
|
||||
// data has been forwarded to the underlying io.Writer. They may also call
|
||||
// Flush zero or more times before calling Close.
|
||||
func NewBufferedWriter(w io.Writer) *Writer {
|
||||
return &Writer{
|
||||
w: w,
|
||||
ibuf: make([]byte, 0, maxBlockSize),
|
||||
obuf: make([]byte, obufLen),
|
||||
}
|
||||
}
|
||||
|
||||
// Writer is an io.Writer than can write Snappy-compressed bytes.
|
||||
type Writer struct {
|
||||
w io.Writer
|
||||
err error
|
||||
|
||||
// ibuf is a buffer for the incoming (uncompressed) bytes.
|
||||
//
|
||||
// Its use is optional. For backwards compatibility, Writers created by the
|
||||
// NewWriter function have ibuf == nil, do not buffer incoming bytes, and
|
||||
// therefore do not need to be Flush'ed or Close'd.
|
||||
ibuf []byte
|
||||
|
||||
// obuf is a buffer for the outgoing (compressed) bytes.
|
||||
obuf []byte
|
||||
|
||||
// wroteStreamHeader is whether we have written the stream header.
|
||||
wroteStreamHeader bool
|
||||
}
|
||||
|
||||
// Reset discards the writer's state and switches the Snappy writer to write to
|
||||
// w. This permits reusing a Writer rather than allocating a new one.
|
||||
func (w *Writer) Reset(writer io.Writer) {
|
||||
w.w = writer
|
||||
w.err = nil
|
||||
if w.ibuf != nil {
|
||||
w.ibuf = w.ibuf[:0]
|
||||
}
|
||||
w.wroteStreamHeader = false
|
||||
}
|
||||
|
||||
// Write satisfies the io.Writer interface.
|
||||
func (w *Writer) Write(p []byte) (nRet int, errRet error) {
|
||||
if w.ibuf == nil {
|
||||
// Do not buffer incoming bytes. This does not perform or compress well
|
||||
// if the caller of Writer.Write writes many small slices. This
|
||||
// behavior is therefore deprecated, but still supported for backwards
|
||||
// compatibility with code that doesn't explicitly Flush or Close.
|
||||
return w.write(p)
|
||||
}
|
||||
|
||||
// The remainder of this method is based on bufio.Writer.Write from the
|
||||
// standard library.
|
||||
|
||||
for len(p) > (cap(w.ibuf)-len(w.ibuf)) && w.err == nil {
|
||||
var n int
|
||||
if len(w.ibuf) == 0 {
|
||||
// Large write, empty buffer.
|
||||
// Write directly from p to avoid copy.
|
||||
n, _ = w.write(p)
|
||||
} else {
|
||||
n = copy(w.ibuf[len(w.ibuf):cap(w.ibuf)], p)
|
||||
w.ibuf = w.ibuf[:len(w.ibuf)+n]
|
||||
w.Flush()
|
||||
}
|
||||
nRet += n
|
||||
p = p[n:]
|
||||
}
|
||||
if w.err != nil {
|
||||
return nRet, w.err
|
||||
}
|
||||
n := copy(w.ibuf[len(w.ibuf):cap(w.ibuf)], p)
|
||||
w.ibuf = w.ibuf[:len(w.ibuf)+n]
|
||||
nRet += n
|
||||
return nRet, nil
|
||||
}
|
||||
|
||||
func (w *Writer) write(p []byte) (nRet int, errRet error) {
|
||||
if w.err != nil {
|
||||
return 0, w.err
|
||||
}
|
||||
for len(p) > 0 {
|
||||
obufStart := len(magicChunk)
|
||||
if !w.wroteStreamHeader {
|
||||
w.wroteStreamHeader = true
|
||||
copy(w.obuf, magicChunk)
|
||||
obufStart = 0
|
||||
}
|
||||
|
||||
var uncompressed []byte
|
||||
if len(p) > maxBlockSize {
|
||||
uncompressed, p = p[:maxBlockSize], p[maxBlockSize:]
|
||||
} else {
|
||||
uncompressed, p = p, nil
|
||||
}
|
||||
checksum := crc(uncompressed)
|
||||
|
||||
// Compress the buffer, discarding the result if the improvement
|
||||
// isn't at least 12.5%.
|
||||
compressed := Encode(w.obuf[obufHeaderLen:], uncompressed)
|
||||
chunkType := uint8(chunkTypeCompressedData)
|
||||
chunkLen := 4 + len(compressed)
|
||||
obufEnd := obufHeaderLen + len(compressed)
|
||||
if len(compressed) >= len(uncompressed)-len(uncompressed)/8 {
|
||||
chunkType = chunkTypeUncompressedData
|
||||
chunkLen = 4 + len(uncompressed)
|
||||
obufEnd = obufHeaderLen
|
||||
}
|
||||
|
||||
// Fill in the per-chunk header that comes before the body.
|
||||
w.obuf[len(magicChunk)+0] = chunkType
|
||||
w.obuf[len(magicChunk)+1] = uint8(chunkLen >> 0)
|
||||
w.obuf[len(magicChunk)+2] = uint8(chunkLen >> 8)
|
||||
w.obuf[len(magicChunk)+3] = uint8(chunkLen >> 16)
|
||||
w.obuf[len(magicChunk)+4] = uint8(checksum >> 0)
|
||||
w.obuf[len(magicChunk)+5] = uint8(checksum >> 8)
|
||||
w.obuf[len(magicChunk)+6] = uint8(checksum >> 16)
|
||||
w.obuf[len(magicChunk)+7] = uint8(checksum >> 24)
|
||||
|
||||
if _, err := w.w.Write(w.obuf[obufStart:obufEnd]); err != nil {
|
||||
w.err = err
|
||||
return nRet, err
|
||||
}
|
||||
if chunkType == chunkTypeUncompressedData {
|
||||
if _, err := w.w.Write(uncompressed); err != nil {
|
||||
w.err = err
|
||||
return nRet, err
|
||||
}
|
||||
}
|
||||
nRet += len(uncompressed)
|
||||
}
|
||||
return nRet, nil
|
||||
}
|
||||
|
||||
// Flush flushes the Writer to its underlying io.Writer.
|
||||
func (w *Writer) Flush() error {
|
||||
if w.err != nil {
|
||||
return w.err
|
||||
}
|
||||
if len(w.ibuf) == 0 {
|
||||
return nil
|
||||
}
|
||||
w.write(w.ibuf)
|
||||
w.ibuf = w.ibuf[:0]
|
||||
return w.err
|
||||
}
|
||||
|
||||
// Close calls Flush and then closes the Writer.
|
||||
func (w *Writer) Close() error {
|
||||
w.Flush()
|
||||
ret := w.err
|
||||
if w.err == nil {
|
||||
w.err = errClosed
|
||||
}
|
||||
return ret
|
||||
}
|
||||
|
|
@ -1,29 +0,0 @@
|
|||
// Copyright 2016 The Snappy-Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !appengine
|
||||
// +build gc
|
||||
// +build !noasm
|
||||
|
||||
package snappy
|
||||
|
||||
// emitLiteral has the same semantics as in encode_other.go.
|
||||
//
|
||||
//go:noescape
|
||||
func emitLiteral(dst, lit []byte) int
|
||||
|
||||
// emitCopy has the same semantics as in encode_other.go.
|
||||
//
|
||||
//go:noescape
|
||||
func emitCopy(dst []byte, offset, length int) int
|
||||
|
||||
// extendMatch has the same semantics as in encode_other.go.
|
||||
//
|
||||
//go:noescape
|
||||
func extendMatch(src []byte, i, j int) int
|
||||
|
||||
// encodeBlock has the same semantics as in encode_other.go.
|
||||
//
|
||||
//go:noescape
|
||||
func encodeBlock(dst, src []byte) (d int)
|
||||
|
|
@ -1,730 +0,0 @@
|
|||
// Copyright 2016 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !appengine
|
||||
// +build gc
|
||||
// +build !noasm
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
// The XXX lines assemble on Go 1.4, 1.5 and 1.7, but not 1.6, due to a
|
||||
// Go toolchain regression. See https://github.com/golang/go/issues/15426 and
|
||||
// https://github.com/golang/snappy/issues/29
|
||||
//
|
||||
// As a workaround, the package was built with a known good assembler, and
|
||||
// those instructions were disassembled by "objdump -d" to yield the
|
||||
// 4e 0f b7 7c 5c 78 movzwq 0x78(%rsp,%r11,2),%r15
|
||||
// style comments, in AT&T asm syntax. Note that rsp here is a physical
|
||||
// register, not Go/asm's SP pseudo-register (see https://golang.org/doc/asm).
|
||||
// The instructions were then encoded as "BYTE $0x.." sequences, which assemble
|
||||
// fine on Go 1.6.
|
||||
|
||||
// The asm code generally follows the pure Go code in encode_other.go, except
|
||||
// where marked with a "!!!".
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
|
||||
// func emitLiteral(dst, lit []byte) int
|
||||
//
|
||||
// All local variables fit into registers. The register allocation:
|
||||
// - AX len(lit)
|
||||
// - BX n
|
||||
// - DX return value
|
||||
// - DI &dst[i]
|
||||
// - R10 &lit[0]
|
||||
//
|
||||
// The 24 bytes of stack space is to call runtime·memmove.
|
||||
//
|
||||
// The unusual register allocation of local variables, such as R10 for the
|
||||
// source pointer, matches the allocation used at the call site in encodeBlock,
|
||||
// which makes it easier to manually inline this function.
|
||||
TEXT ·emitLiteral(SB), NOSPLIT, $24-56
|
||||
MOVQ dst_base+0(FP), DI
|
||||
MOVQ lit_base+24(FP), R10
|
||||
MOVQ lit_len+32(FP), AX
|
||||
MOVQ AX, DX
|
||||
MOVL AX, BX
|
||||
SUBL $1, BX
|
||||
|
||||
CMPL BX, $60
|
||||
JLT oneByte
|
||||
CMPL BX, $256
|
||||
JLT twoBytes
|
||||
|
||||
threeBytes:
|
||||
MOVB $0xf4, 0(DI)
|
||||
MOVW BX, 1(DI)
|
||||
ADDQ $3, DI
|
||||
ADDQ $3, DX
|
||||
JMP memmove
|
||||
|
||||
twoBytes:
|
||||
MOVB $0xf0, 0(DI)
|
||||
MOVB BX, 1(DI)
|
||||
ADDQ $2, DI
|
||||
ADDQ $2, DX
|
||||
JMP memmove
|
||||
|
||||
oneByte:
|
||||
SHLB $2, BX
|
||||
MOVB BX, 0(DI)
|
||||
ADDQ $1, DI
|
||||
ADDQ $1, DX
|
||||
|
||||
memmove:
|
||||
MOVQ DX, ret+48(FP)
|
||||
|
||||
// copy(dst[i:], lit)
|
||||
//
|
||||
// This means calling runtime·memmove(&dst[i], &lit[0], len(lit)), so we push
|
||||
// DI, R10 and AX as arguments.
|
||||
MOVQ DI, 0(SP)
|
||||
MOVQ R10, 8(SP)
|
||||
MOVQ AX, 16(SP)
|
||||
CALL runtime·memmove(SB)
|
||||
RET
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
|
||||
// func emitCopy(dst []byte, offset, length int) int
|
||||
//
|
||||
// All local variables fit into registers. The register allocation:
|
||||
// - AX length
|
||||
// - SI &dst[0]
|
||||
// - DI &dst[i]
|
||||
// - R11 offset
|
||||
//
|
||||
// The unusual register allocation of local variables, such as R11 for the
|
||||
// offset, matches the allocation used at the call site in encodeBlock, which
|
||||
// makes it easier to manually inline this function.
|
||||
TEXT ·emitCopy(SB), NOSPLIT, $0-48
|
||||
MOVQ dst_base+0(FP), DI
|
||||
MOVQ DI, SI
|
||||
MOVQ offset+24(FP), R11
|
||||
MOVQ length+32(FP), AX
|
||||
|
||||
loop0:
|
||||
// for length >= 68 { etc }
|
||||
CMPL AX, $68
|
||||
JLT step1
|
||||
|
||||
// Emit a length 64 copy, encoded as 3 bytes.
|
||||
MOVB $0xfe, 0(DI)
|
||||
MOVW R11, 1(DI)
|
||||
ADDQ $3, DI
|
||||
SUBL $64, AX
|
||||
JMP loop0
|
||||
|
||||
step1:
|
||||
// if length > 64 { etc }
|
||||
CMPL AX, $64
|
||||
JLE step2
|
||||
|
||||
// Emit a length 60 copy, encoded as 3 bytes.
|
||||
MOVB $0xee, 0(DI)
|
||||
MOVW R11, 1(DI)
|
||||
ADDQ $3, DI
|
||||
SUBL $60, AX
|
||||
|
||||
step2:
|
||||
// if length >= 12 || offset >= 2048 { goto step3 }
|
||||
CMPL AX, $12
|
||||
JGE step3
|
||||
CMPL R11, $2048
|
||||
JGE step3
|
||||
|
||||
// Emit the remaining copy, encoded as 2 bytes.
|
||||
MOVB R11, 1(DI)
|
||||
SHRL $8, R11
|
||||
SHLB $5, R11
|
||||
SUBB $4, AX
|
||||
SHLB $2, AX
|
||||
ORB AX, R11
|
||||
ORB $1, R11
|
||||
MOVB R11, 0(DI)
|
||||
ADDQ $2, DI
|
||||
|
||||
// Return the number of bytes written.
|
||||
SUBQ SI, DI
|
||||
MOVQ DI, ret+40(FP)
|
||||
RET
|
||||
|
||||
step3:
|
||||
// Emit the remaining copy, encoded as 3 bytes.
|
||||
SUBL $1, AX
|
||||
SHLB $2, AX
|
||||
ORB $2, AX
|
||||
MOVB AX, 0(DI)
|
||||
MOVW R11, 1(DI)
|
||||
ADDQ $3, DI
|
||||
|
||||
// Return the number of bytes written.
|
||||
SUBQ SI, DI
|
||||
MOVQ DI, ret+40(FP)
|
||||
RET
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
|
||||
// func extendMatch(src []byte, i, j int) int
|
||||
//
|
||||
// All local variables fit into registers. The register allocation:
|
||||
// - DX &src[0]
|
||||
// - SI &src[j]
|
||||
// - R13 &src[len(src) - 8]
|
||||
// - R14 &src[len(src)]
|
||||
// - R15 &src[i]
|
||||
//
|
||||
// The unusual register allocation of local variables, such as R15 for a source
|
||||
// pointer, matches the allocation used at the call site in encodeBlock, which
|
||||
// makes it easier to manually inline this function.
|
||||
TEXT ·extendMatch(SB), NOSPLIT, $0-48
|
||||
MOVQ src_base+0(FP), DX
|
||||
MOVQ src_len+8(FP), R14
|
||||
MOVQ i+24(FP), R15
|
||||
MOVQ j+32(FP), SI
|
||||
ADDQ DX, R14
|
||||
ADDQ DX, R15
|
||||
ADDQ DX, SI
|
||||
MOVQ R14, R13
|
||||
SUBQ $8, R13
|
||||
|
||||
cmp8:
|
||||
// As long as we are 8 or more bytes before the end of src, we can load and
|
||||
// compare 8 bytes at a time. If those 8 bytes are equal, repeat.
|
||||
CMPQ SI, R13
|
||||
JA cmp1
|
||||
MOVQ (R15), AX
|
||||
MOVQ (SI), BX
|
||||
CMPQ AX, BX
|
||||
JNE bsf
|
||||
ADDQ $8, R15
|
||||
ADDQ $8, SI
|
||||
JMP cmp8
|
||||
|
||||
bsf:
|
||||
// If those 8 bytes were not equal, XOR the two 8 byte values, and return
|
||||
// the index of the first byte that differs. The BSF instruction finds the
|
||||
// least significant 1 bit, the amd64 architecture is little-endian, and
|
||||
// the shift by 3 converts a bit index to a byte index.
|
||||
XORQ AX, BX
|
||||
BSFQ BX, BX
|
||||
SHRQ $3, BX
|
||||
ADDQ BX, SI
|
||||
|
||||
// Convert from &src[ret] to ret.
|
||||
SUBQ DX, SI
|
||||
MOVQ SI, ret+40(FP)
|
||||
RET
|
||||
|
||||
cmp1:
|
||||
// In src's tail, compare 1 byte at a time.
|
||||
CMPQ SI, R14
|
||||
JAE extendMatchEnd
|
||||
MOVB (R15), AX
|
||||
MOVB (SI), BX
|
||||
CMPB AX, BX
|
||||
JNE extendMatchEnd
|
||||
ADDQ $1, R15
|
||||
ADDQ $1, SI
|
||||
JMP cmp1
|
||||
|
||||
extendMatchEnd:
|
||||
// Convert from &src[ret] to ret.
|
||||
SUBQ DX, SI
|
||||
MOVQ SI, ret+40(FP)
|
||||
RET
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
|
||||
// func encodeBlock(dst, src []byte) (d int)
|
||||
//
|
||||
// All local variables fit into registers, other than "var table". The register
|
||||
// allocation:
|
||||
// - AX . .
|
||||
// - BX . .
|
||||
// - CX 56 shift (note that amd64 shifts by non-immediates must use CX).
|
||||
// - DX 64 &src[0], tableSize
|
||||
// - SI 72 &src[s]
|
||||
// - DI 80 &dst[d]
|
||||
// - R9 88 sLimit
|
||||
// - R10 . &src[nextEmit]
|
||||
// - R11 96 prevHash, currHash, nextHash, offset
|
||||
// - R12 104 &src[base], skip
|
||||
// - R13 . &src[nextS], &src[len(src) - 8]
|
||||
// - R14 . len(src), bytesBetweenHashLookups, &src[len(src)], x
|
||||
// - R15 112 candidate
|
||||
//
|
||||
// The second column (56, 64, etc) is the stack offset to spill the registers
|
||||
// when calling other functions. We could pack this slightly tighter, but it's
|
||||
// simpler to have a dedicated spill map independent of the function called.
|
||||
//
|
||||
// "var table [maxTableSize]uint16" takes up 32768 bytes of stack space. An
|
||||
// extra 56 bytes, to call other functions, and an extra 64 bytes, to spill
|
||||
// local variables (registers) during calls gives 32768 + 56 + 64 = 32888.
|
||||
TEXT ·encodeBlock(SB), 0, $32888-56
|
||||
MOVQ dst_base+0(FP), DI
|
||||
MOVQ src_base+24(FP), SI
|
||||
MOVQ src_len+32(FP), R14
|
||||
|
||||
// shift, tableSize := uint32(32-8), 1<<8
|
||||
MOVQ $24, CX
|
||||
MOVQ $256, DX
|
||||
|
||||
calcShift:
|
||||
// for ; tableSize < maxTableSize && tableSize < len(src); tableSize *= 2 {
|
||||
// shift--
|
||||
// }
|
||||
CMPQ DX, $16384
|
||||
JGE varTable
|
||||
CMPQ DX, R14
|
||||
JGE varTable
|
||||
SUBQ $1, CX
|
||||
SHLQ $1, DX
|
||||
JMP calcShift
|
||||
|
||||
varTable:
|
||||
// var table [maxTableSize]uint16
|
||||
//
|
||||
// In the asm code, unlike the Go code, we can zero-initialize only the
|
||||
// first tableSize elements. Each uint16 element is 2 bytes and each MOVOU
|
||||
// writes 16 bytes, so we can do only tableSize/8 writes instead of the
|
||||
// 2048 writes that would zero-initialize all of table's 32768 bytes.
|
||||
SHRQ $3, DX
|
||||
LEAQ table-32768(SP), BX
|
||||
PXOR X0, X0
|
||||
|
||||
memclr:
|
||||
MOVOU X0, 0(BX)
|
||||
ADDQ $16, BX
|
||||
SUBQ $1, DX
|
||||
JNZ memclr
|
||||
|
||||
// !!! DX = &src[0]
|
||||
MOVQ SI, DX
|
||||
|
||||
// sLimit := len(src) - inputMargin
|
||||
MOVQ R14, R9
|
||||
SUBQ $15, R9
|
||||
|
||||
// !!! Pre-emptively spill CX, DX and R9 to the stack. Their values don't
|
||||
// change for the rest of the function.
|
||||
MOVQ CX, 56(SP)
|
||||
MOVQ DX, 64(SP)
|
||||
MOVQ R9, 88(SP)
|
||||
|
||||
// nextEmit := 0
|
||||
MOVQ DX, R10
|
||||
|
||||
// s := 1
|
||||
ADDQ $1, SI
|
||||
|
||||
// nextHash := hash(load32(src, s), shift)
|
||||
MOVL 0(SI), R11
|
||||
IMULL $0x1e35a7bd, R11
|
||||
SHRL CX, R11
|
||||
|
||||
outer:
|
||||
// for { etc }
|
||||
|
||||
// skip := 32
|
||||
MOVQ $32, R12
|
||||
|
||||
// nextS := s
|
||||
MOVQ SI, R13
|
||||
|
||||
// candidate := 0
|
||||
MOVQ $0, R15
|
||||
|
||||
inner0:
|
||||
// for { etc }
|
||||
|
||||
// s := nextS
|
||||
MOVQ R13, SI
|
||||
|
||||
// bytesBetweenHashLookups := skip >> 5
|
||||
MOVQ R12, R14
|
||||
SHRQ $5, R14
|
||||
|
||||
// nextS = s + bytesBetweenHashLookups
|
||||
ADDQ R14, R13
|
||||
|
||||
// skip += bytesBetweenHashLookups
|
||||
ADDQ R14, R12
|
||||
|
||||
// if nextS > sLimit { goto emitRemainder }
|
||||
MOVQ R13, AX
|
||||
SUBQ DX, AX
|
||||
CMPQ AX, R9
|
||||
JA emitRemainder
|
||||
|
||||
// candidate = int(table[nextHash])
|
||||
// XXX: MOVWQZX table-32768(SP)(R11*2), R15
|
||||
// XXX: 4e 0f b7 7c 5c 78 movzwq 0x78(%rsp,%r11,2),%r15
|
||||
BYTE $0x4e
|
||||
BYTE $0x0f
|
||||
BYTE $0xb7
|
||||
BYTE $0x7c
|
||||
BYTE $0x5c
|
||||
BYTE $0x78
|
||||
|
||||
// table[nextHash] = uint16(s)
|
||||
MOVQ SI, AX
|
||||
SUBQ DX, AX
|
||||
|
||||
// XXX: MOVW AX, table-32768(SP)(R11*2)
|
||||
// XXX: 66 42 89 44 5c 78 mov %ax,0x78(%rsp,%r11,2)
|
||||
BYTE $0x66
|
||||
BYTE $0x42
|
||||
BYTE $0x89
|
||||
BYTE $0x44
|
||||
BYTE $0x5c
|
||||
BYTE $0x78
|
||||
|
||||
// nextHash = hash(load32(src, nextS), shift)
|
||||
MOVL 0(R13), R11
|
||||
IMULL $0x1e35a7bd, R11
|
||||
SHRL CX, R11
|
||||
|
||||
// if load32(src, s) != load32(src, candidate) { continue } break
|
||||
MOVL 0(SI), AX
|
||||
MOVL (DX)(R15*1), BX
|
||||
CMPL AX, BX
|
||||
JNE inner0
|
||||
|
||||
fourByteMatch:
|
||||
// As per the encode_other.go code:
|
||||
//
|
||||
// A 4-byte match has been found. We'll later see etc.
|
||||
|
||||
// !!! Jump to a fast path for short (<= 16 byte) literals. See the comment
|
||||
// on inputMargin in encode.go.
|
||||
MOVQ SI, AX
|
||||
SUBQ R10, AX
|
||||
CMPQ AX, $16
|
||||
JLE emitLiteralFastPath
|
||||
|
||||
// ----------------------------------------
|
||||
// Begin inline of the emitLiteral call.
|
||||
//
|
||||
// d += emitLiteral(dst[d:], src[nextEmit:s])
|
||||
|
||||
MOVL AX, BX
|
||||
SUBL $1, BX
|
||||
|
||||
CMPL BX, $60
|
||||
JLT inlineEmitLiteralOneByte
|
||||
CMPL BX, $256
|
||||
JLT inlineEmitLiteralTwoBytes
|
||||
|
||||
inlineEmitLiteralThreeBytes:
|
||||
MOVB $0xf4, 0(DI)
|
||||
MOVW BX, 1(DI)
|
||||
ADDQ $3, DI
|
||||
JMP inlineEmitLiteralMemmove
|
||||
|
||||
inlineEmitLiteralTwoBytes:
|
||||
MOVB $0xf0, 0(DI)
|
||||
MOVB BX, 1(DI)
|
||||
ADDQ $2, DI
|
||||
JMP inlineEmitLiteralMemmove
|
||||
|
||||
inlineEmitLiteralOneByte:
|
||||
SHLB $2, BX
|
||||
MOVB BX, 0(DI)
|
||||
ADDQ $1, DI
|
||||
|
||||
inlineEmitLiteralMemmove:
|
||||
// Spill local variables (registers) onto the stack; call; unspill.
|
||||
//
|
||||
// copy(dst[i:], lit)
|
||||
//
|
||||
// This means calling runtime·memmove(&dst[i], &lit[0], len(lit)), so we push
|
||||
// DI, R10 and AX as arguments.
|
||||
MOVQ DI, 0(SP)
|
||||
MOVQ R10, 8(SP)
|
||||
MOVQ AX, 16(SP)
|
||||
ADDQ AX, DI // Finish the "d +=" part of "d += emitLiteral(etc)".
|
||||
MOVQ SI, 72(SP)
|
||||
MOVQ DI, 80(SP)
|
||||
MOVQ R15, 112(SP)
|
||||
CALL runtime·memmove(SB)
|
||||
MOVQ 56(SP), CX
|
||||
MOVQ 64(SP), DX
|
||||
MOVQ 72(SP), SI
|
||||
MOVQ 80(SP), DI
|
||||
MOVQ 88(SP), R9
|
||||
MOVQ 112(SP), R15
|
||||
JMP inner1
|
||||
|
||||
inlineEmitLiteralEnd:
|
||||
// End inline of the emitLiteral call.
|
||||
// ----------------------------------------
|
||||
|
||||
emitLiteralFastPath:
|
||||
// !!! Emit the 1-byte encoding "uint8(len(lit)-1)<<2".
|
||||
MOVB AX, BX
|
||||
SUBB $1, BX
|
||||
SHLB $2, BX
|
||||
MOVB BX, (DI)
|
||||
ADDQ $1, DI
|
||||
|
||||
// !!! Implement the copy from lit to dst as a 16-byte load and store.
|
||||
// (Encode's documentation says that dst and src must not overlap.)
|
||||
//
|
||||
// This always copies 16 bytes, instead of only len(lit) bytes, but that's
|
||||
// OK. Subsequent iterations will fix up the overrun.
|
||||
//
|
||||
// Note that on amd64, it is legal and cheap to issue unaligned 8-byte or
|
||||
// 16-byte loads and stores. This technique probably wouldn't be as
|
||||
// effective on architectures that are fussier about alignment.
|
||||
MOVOU 0(R10), X0
|
||||
MOVOU X0, 0(DI)
|
||||
ADDQ AX, DI
|
||||
|
||||
inner1:
|
||||
// for { etc }
|
||||
|
||||
// base := s
|
||||
MOVQ SI, R12
|
||||
|
||||
// !!! offset := base - candidate
|
||||
MOVQ R12, R11
|
||||
SUBQ R15, R11
|
||||
SUBQ DX, R11
|
||||
|
||||
// ----------------------------------------
|
||||
// Begin inline of the extendMatch call.
|
||||
//
|
||||
// s = extendMatch(src, candidate+4, s+4)
|
||||
|
||||
// !!! R14 = &src[len(src)]
|
||||
MOVQ src_len+32(FP), R14
|
||||
ADDQ DX, R14
|
||||
|
||||
// !!! R13 = &src[len(src) - 8]
|
||||
MOVQ R14, R13
|
||||
SUBQ $8, R13
|
||||
|
||||
// !!! R15 = &src[candidate + 4]
|
||||
ADDQ $4, R15
|
||||
ADDQ DX, R15
|
||||
|
||||
// !!! s += 4
|
||||
ADDQ $4, SI
|
||||
|
||||
inlineExtendMatchCmp8:
|
||||
// As long as we are 8 or more bytes before the end of src, we can load and
|
||||
// compare 8 bytes at a time. If those 8 bytes are equal, repeat.
|
||||
CMPQ SI, R13
|
||||
JA inlineExtendMatchCmp1
|
||||
MOVQ (R15), AX
|
||||
MOVQ (SI), BX
|
||||
CMPQ AX, BX
|
||||
JNE inlineExtendMatchBSF
|
||||
ADDQ $8, R15
|
||||
ADDQ $8, SI
|
||||
JMP inlineExtendMatchCmp8
|
||||
|
||||
inlineExtendMatchBSF:
|
||||
// If those 8 bytes were not equal, XOR the two 8 byte values, and return
|
||||
// the index of the first byte that differs. The BSF instruction finds the
|
||||
// least significant 1 bit, the amd64 architecture is little-endian, and
|
||||
// the shift by 3 converts a bit index to a byte index.
|
||||
XORQ AX, BX
|
||||
BSFQ BX, BX
|
||||
SHRQ $3, BX
|
||||
ADDQ BX, SI
|
||||
JMP inlineExtendMatchEnd
|
||||
|
||||
inlineExtendMatchCmp1:
|
||||
// In src's tail, compare 1 byte at a time.
|
||||
CMPQ SI, R14
|
||||
JAE inlineExtendMatchEnd
|
||||
MOVB (R15), AX
|
||||
MOVB (SI), BX
|
||||
CMPB AX, BX
|
||||
JNE inlineExtendMatchEnd
|
||||
ADDQ $1, R15
|
||||
ADDQ $1, SI
|
||||
JMP inlineExtendMatchCmp1
|
||||
|
||||
inlineExtendMatchEnd:
|
||||
// End inline of the extendMatch call.
|
||||
// ----------------------------------------
|
||||
|
||||
// ----------------------------------------
|
||||
// Begin inline of the emitCopy call.
|
||||
//
|
||||
// d += emitCopy(dst[d:], base-candidate, s-base)
|
||||
|
||||
// !!! length := s - base
|
||||
MOVQ SI, AX
|
||||
SUBQ R12, AX
|
||||
|
||||
inlineEmitCopyLoop0:
|
||||
// for length >= 68 { etc }
|
||||
CMPL AX, $68
|
||||
JLT inlineEmitCopyStep1
|
||||
|
||||
// Emit a length 64 copy, encoded as 3 bytes.
|
||||
MOVB $0xfe, 0(DI)
|
||||
MOVW R11, 1(DI)
|
||||
ADDQ $3, DI
|
||||
SUBL $64, AX
|
||||
JMP inlineEmitCopyLoop0
|
||||
|
||||
inlineEmitCopyStep1:
|
||||
// if length > 64 { etc }
|
||||
CMPL AX, $64
|
||||
JLE inlineEmitCopyStep2
|
||||
|
||||
// Emit a length 60 copy, encoded as 3 bytes.
|
||||
MOVB $0xee, 0(DI)
|
||||
MOVW R11, 1(DI)
|
||||
ADDQ $3, DI
|
||||
SUBL $60, AX
|
||||
|
||||
inlineEmitCopyStep2:
|
||||
// if length >= 12 || offset >= 2048 { goto inlineEmitCopyStep3 }
|
||||
CMPL AX, $12
|
||||
JGE inlineEmitCopyStep3
|
||||
CMPL R11, $2048
|
||||
JGE inlineEmitCopyStep3
|
||||
|
||||
// Emit the remaining copy, encoded as 2 bytes.
|
||||
MOVB R11, 1(DI)
|
||||
SHRL $8, R11
|
||||
SHLB $5, R11
|
||||
SUBB $4, AX
|
||||
SHLB $2, AX
|
||||
ORB AX, R11
|
||||
ORB $1, R11
|
||||
MOVB R11, 0(DI)
|
||||
ADDQ $2, DI
|
||||
JMP inlineEmitCopyEnd
|
||||
|
||||
inlineEmitCopyStep3:
|
||||
// Emit the remaining copy, encoded as 3 bytes.
|
||||
SUBL $1, AX
|
||||
SHLB $2, AX
|
||||
ORB $2, AX
|
||||
MOVB AX, 0(DI)
|
||||
MOVW R11, 1(DI)
|
||||
ADDQ $3, DI
|
||||
|
||||
inlineEmitCopyEnd:
|
||||
// End inline of the emitCopy call.
|
||||
// ----------------------------------------
|
||||
|
||||
// nextEmit = s
|
||||
MOVQ SI, R10
|
||||
|
||||
// if s >= sLimit { goto emitRemainder }
|
||||
MOVQ SI, AX
|
||||
SUBQ DX, AX
|
||||
CMPQ AX, R9
|
||||
JAE emitRemainder
|
||||
|
||||
// As per the encode_other.go code:
|
||||
//
|
||||
// We could immediately etc.
|
||||
|
||||
// x := load64(src, s-1)
|
||||
MOVQ -1(SI), R14
|
||||
|
||||
// prevHash := hash(uint32(x>>0), shift)
|
||||
MOVL R14, R11
|
||||
IMULL $0x1e35a7bd, R11
|
||||
SHRL CX, R11
|
||||
|
||||
// table[prevHash] = uint16(s-1)
|
||||
MOVQ SI, AX
|
||||
SUBQ DX, AX
|
||||
SUBQ $1, AX
|
||||
|
||||
// XXX: MOVW AX, table-32768(SP)(R11*2)
|
||||
// XXX: 66 42 89 44 5c 78 mov %ax,0x78(%rsp,%r11,2)
|
||||
BYTE $0x66
|
||||
BYTE $0x42
|
||||
BYTE $0x89
|
||||
BYTE $0x44
|
||||
BYTE $0x5c
|
||||
BYTE $0x78
|
||||
|
||||
// currHash := hash(uint32(x>>8), shift)
|
||||
SHRQ $8, R14
|
||||
MOVL R14, R11
|
||||
IMULL $0x1e35a7bd, R11
|
||||
SHRL CX, R11
|
||||
|
||||
// candidate = int(table[currHash])
|
||||
// XXX: MOVWQZX table-32768(SP)(R11*2), R15
|
||||
// XXX: 4e 0f b7 7c 5c 78 movzwq 0x78(%rsp,%r11,2),%r15
|
||||
BYTE $0x4e
|
||||
BYTE $0x0f
|
||||
BYTE $0xb7
|
||||
BYTE $0x7c
|
||||
BYTE $0x5c
|
||||
BYTE $0x78
|
||||
|
||||
// table[currHash] = uint16(s)
|
||||
ADDQ $1, AX
|
||||
|
||||
// XXX: MOVW AX, table-32768(SP)(R11*2)
|
||||
// XXX: 66 42 89 44 5c 78 mov %ax,0x78(%rsp,%r11,2)
|
||||
BYTE $0x66
|
||||
BYTE $0x42
|
||||
BYTE $0x89
|
||||
BYTE $0x44
|
||||
BYTE $0x5c
|
||||
BYTE $0x78
|
||||
|
||||
// if uint32(x>>8) == load32(src, candidate) { continue }
|
||||
MOVL (DX)(R15*1), BX
|
||||
CMPL R14, BX
|
||||
JEQ inner1
|
||||
|
||||
// nextHash = hash(uint32(x>>16), shift)
|
||||
SHRQ $8, R14
|
||||
MOVL R14, R11
|
||||
IMULL $0x1e35a7bd, R11
|
||||
SHRL CX, R11
|
||||
|
||||
// s++
|
||||
ADDQ $1, SI
|
||||
|
||||
// break out of the inner1 for loop, i.e. continue the outer loop.
|
||||
JMP outer
|
||||
|
||||
emitRemainder:
|
||||
// if nextEmit < len(src) { etc }
|
||||
MOVQ src_len+32(FP), AX
|
||||
ADDQ DX, AX
|
||||
CMPQ R10, AX
|
||||
JEQ encodeBlockEnd
|
||||
|
||||
// d += emitLiteral(dst[d:], src[nextEmit:])
|
||||
//
|
||||
// Push args.
|
||||
MOVQ DI, 0(SP)
|
||||
MOVQ $0, 8(SP) // Unnecessary, as the callee ignores it, but conservative.
|
||||
MOVQ $0, 16(SP) // Unnecessary, as the callee ignores it, but conservative.
|
||||
MOVQ R10, 24(SP)
|
||||
SUBQ R10, AX
|
||||
MOVQ AX, 32(SP)
|
||||
MOVQ AX, 40(SP) // Unnecessary, as the callee ignores it, but conservative.
|
||||
|
||||
// Spill local variables (registers) onto the stack; call; unspill.
|
||||
MOVQ DI, 80(SP)
|
||||
CALL ·emitLiteral(SB)
|
||||
MOVQ 80(SP), DI
|
||||
|
||||
// Finish the "d +=" part of "d += emitLiteral(etc)".
|
||||
ADDQ 48(SP), DI
|
||||
|
||||
encodeBlockEnd:
|
||||
MOVQ dst_base+0(FP), AX
|
||||
SUBQ AX, DI
|
||||
MOVQ DI, d+48(FP)
|
||||
RET
|
||||
|
|
@ -1,238 +0,0 @@
|
|||
// Copyright 2016 The Snappy-Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !amd64 appengine !gc noasm
|
||||
|
||||
package snappy
|
||||
|
||||
func load32(b []byte, i int) uint32 {
|
||||
b = b[i : i+4 : len(b)] // Help the compiler eliminate bounds checks on the next line.
|
||||
return uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
|
||||
}
|
||||
|
||||
func load64(b []byte, i int) uint64 {
|
||||
b = b[i : i+8 : len(b)] // Help the compiler eliminate bounds checks on the next line.
|
||||
return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 |
|
||||
uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
|
||||
}
|
||||
|
||||
// emitLiteral writes a literal chunk and returns the number of bytes written.
|
||||
//
|
||||
// It assumes that:
|
||||
// dst is long enough to hold the encoded bytes
|
||||
// 1 <= len(lit) && len(lit) <= 65536
|
||||
func emitLiteral(dst, lit []byte) int {
|
||||
i, n := 0, uint(len(lit)-1)
|
||||
switch {
|
||||
case n < 60:
|
||||
dst[0] = uint8(n)<<2 | tagLiteral
|
||||
i = 1
|
||||
case n < 1<<8:
|
||||
dst[0] = 60<<2 | tagLiteral
|
||||
dst[1] = uint8(n)
|
||||
i = 2
|
||||
default:
|
||||
dst[0] = 61<<2 | tagLiteral
|
||||
dst[1] = uint8(n)
|
||||
dst[2] = uint8(n >> 8)
|
||||
i = 3
|
||||
}
|
||||
return i + copy(dst[i:], lit)
|
||||
}
|
||||
|
||||
// emitCopy writes a copy chunk and returns the number of bytes written.
|
||||
//
|
||||
// It assumes that:
|
||||
// dst is long enough to hold the encoded bytes
|
||||
// 1 <= offset && offset <= 65535
|
||||
// 4 <= length && length <= 65535
|
||||
func emitCopy(dst []byte, offset, length int) int {
|
||||
i := 0
|
||||
// The maximum length for a single tagCopy1 or tagCopy2 op is 64 bytes. The
|
||||
// threshold for this loop is a little higher (at 68 = 64 + 4), and the
|
||||
// length emitted down below is is a little lower (at 60 = 64 - 4), because
|
||||
// it's shorter to encode a length 67 copy as a length 60 tagCopy2 followed
|
||||
// by a length 7 tagCopy1 (which encodes as 3+2 bytes) than to encode it as
|
||||
// a length 64 tagCopy2 followed by a length 3 tagCopy2 (which encodes as
|
||||
// 3+3 bytes). The magic 4 in the 64±4 is because the minimum length for a
|
||||
// tagCopy1 op is 4 bytes, which is why a length 3 copy has to be an
|
||||
// encodes-as-3-bytes tagCopy2 instead of an encodes-as-2-bytes tagCopy1.
|
||||
for length >= 68 {
|
||||
// Emit a length 64 copy, encoded as 3 bytes.
|
||||
dst[i+0] = 63<<2 | tagCopy2
|
||||
dst[i+1] = uint8(offset)
|
||||
dst[i+2] = uint8(offset >> 8)
|
||||
i += 3
|
||||
length -= 64
|
||||
}
|
||||
if length > 64 {
|
||||
// Emit a length 60 copy, encoded as 3 bytes.
|
||||
dst[i+0] = 59<<2 | tagCopy2
|
||||
dst[i+1] = uint8(offset)
|
||||
dst[i+2] = uint8(offset >> 8)
|
||||
i += 3
|
||||
length -= 60
|
||||
}
|
||||
if length >= 12 || offset >= 2048 {
|
||||
// Emit the remaining copy, encoded as 3 bytes.
|
||||
dst[i+0] = uint8(length-1)<<2 | tagCopy2
|
||||
dst[i+1] = uint8(offset)
|
||||
dst[i+2] = uint8(offset >> 8)
|
||||
return i + 3
|
||||
}
|
||||
// Emit the remaining copy, encoded as 2 bytes.
|
||||
dst[i+0] = uint8(offset>>8)<<5 | uint8(length-4)<<2 | tagCopy1
|
||||
dst[i+1] = uint8(offset)
|
||||
return i + 2
|
||||
}
|
||||
|
||||
// extendMatch returns the largest k such that k <= len(src) and that
|
||||
// src[i:i+k-j] and src[j:k] have the same contents.
|
||||
//
|
||||
// It assumes that:
|
||||
// 0 <= i && i < j && j <= len(src)
|
||||
func extendMatch(src []byte, i, j int) int {
|
||||
for ; j < len(src) && src[i] == src[j]; i, j = i+1, j+1 {
|
||||
}
|
||||
return j
|
||||
}
|
||||
|
||||
func hash(u, shift uint32) uint32 {
|
||||
return (u * 0x1e35a7bd) >> shift
|
||||
}
|
||||
|
||||
// encodeBlock encodes a non-empty src to a guaranteed-large-enough dst. It
|
||||
// assumes that the varint-encoded length of the decompressed bytes has already
|
||||
// been written.
|
||||
//
|
||||
// It also assumes that:
|
||||
// len(dst) >= MaxEncodedLen(len(src)) &&
|
||||
// minNonLiteralBlockSize <= len(src) && len(src) <= maxBlockSize
|
||||
func encodeBlock(dst, src []byte) (d int) {
|
||||
// Initialize the hash table. Its size ranges from 1<<8 to 1<<14 inclusive.
|
||||
// The table element type is uint16, as s < sLimit and sLimit < len(src)
|
||||
// and len(src) <= maxBlockSize and maxBlockSize == 65536.
|
||||
const (
|
||||
maxTableSize = 1 << 14
|
||||
// tableMask is redundant, but helps the compiler eliminate bounds
|
||||
// checks.
|
||||
tableMask = maxTableSize - 1
|
||||
)
|
||||
shift := uint32(32 - 8)
|
||||
for tableSize := 1 << 8; tableSize < maxTableSize && tableSize < len(src); tableSize *= 2 {
|
||||
shift--
|
||||
}
|
||||
// In Go, all array elements are zero-initialized, so there is no advantage
|
||||
// to a smaller tableSize per se. However, it matches the C++ algorithm,
|
||||
// and in the asm versions of this code, we can get away with zeroing only
|
||||
// the first tableSize elements.
|
||||
var table [maxTableSize]uint16
|
||||
|
||||
// sLimit is when to stop looking for offset/length copies. The inputMargin
|
||||
// lets us use a fast path for emitLiteral in the main loop, while we are
|
||||
// looking for copies.
|
||||
sLimit := len(src) - inputMargin
|
||||
|
||||
// nextEmit is where in src the next emitLiteral should start from.
|
||||
nextEmit := 0
|
||||
|
||||
// The encoded form must start with a literal, as there are no previous
|
||||
// bytes to copy, so we start looking for hash matches at s == 1.
|
||||
s := 1
|
||||
nextHash := hash(load32(src, s), shift)
|
||||
|
||||
for {
|
||||
// Copied from the C++ snappy implementation:
|
||||
//
|
||||
// Heuristic match skipping: If 32 bytes are scanned with no matches
|
||||
// found, start looking only at every other byte. If 32 more bytes are
|
||||
// scanned (or skipped), look at every third byte, etc.. When a match
|
||||
// is found, immediately go back to looking at every byte. This is a
|
||||
// small loss (~5% performance, ~0.1% density) for compressible data
|
||||
// due to more bookkeeping, but for non-compressible data (such as
|
||||
// JPEG) it's a huge win since the compressor quickly "realizes" the
|
||||
// data is incompressible and doesn't bother looking for matches
|
||||
// everywhere.
|
||||
//
|
||||
// The "skip" variable keeps track of how many bytes there are since
|
||||
// the last match; dividing it by 32 (ie. right-shifting by five) gives
|
||||
// the number of bytes to move ahead for each iteration.
|
||||
skip := 32
|
||||
|
||||
nextS := s
|
||||
candidate := 0
|
||||
for {
|
||||
s = nextS
|
||||
bytesBetweenHashLookups := skip >> 5
|
||||
nextS = s + bytesBetweenHashLookups
|
||||
skip += bytesBetweenHashLookups
|
||||
if nextS > sLimit {
|
||||
goto emitRemainder
|
||||
}
|
||||
candidate = int(table[nextHash&tableMask])
|
||||
table[nextHash&tableMask] = uint16(s)
|
||||
nextHash = hash(load32(src, nextS), shift)
|
||||
if load32(src, s) == load32(src, candidate) {
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
// A 4-byte match has been found. We'll later see if more than 4 bytes
|
||||
// match. But, prior to the match, src[nextEmit:s] are unmatched. Emit
|
||||
// them as literal bytes.
|
||||
d += emitLiteral(dst[d:], src[nextEmit:s])
|
||||
|
||||
// Call emitCopy, and then see if another emitCopy could be our next
|
||||
// move. Repeat until we find no match for the input immediately after
|
||||
// what was consumed by the last emitCopy call.
|
||||
//
|
||||
// If we exit this loop normally then we need to call emitLiteral next,
|
||||
// though we don't yet know how big the literal will be. We handle that
|
||||
// by proceeding to the next iteration of the main loop. We also can
|
||||
// exit this loop via goto if we get close to exhausting the input.
|
||||
for {
|
||||
// Invariant: we have a 4-byte match at s, and no need to emit any
|
||||
// literal bytes prior to s.
|
||||
base := s
|
||||
|
||||
// Extend the 4-byte match as long as possible.
|
||||
//
|
||||
// This is an inlined version of:
|
||||
// s = extendMatch(src, candidate+4, s+4)
|
||||
s += 4
|
||||
for i := candidate + 4; s < len(src) && src[i] == src[s]; i, s = i+1, s+1 {
|
||||
}
|
||||
|
||||
d += emitCopy(dst[d:], base-candidate, s-base)
|
||||
nextEmit = s
|
||||
if s >= sLimit {
|
||||
goto emitRemainder
|
||||
}
|
||||
|
||||
// We could immediately start working at s now, but to improve
|
||||
// compression we first update the hash table at s-1 and at s. If
|
||||
// another emitCopy is not our next move, also calculate nextHash
|
||||
// at s+1. At least on GOARCH=amd64, these three hash calculations
|
||||
// are faster as one load64 call (with some shifts) instead of
|
||||
// three load32 calls.
|
||||
x := load64(src, s-1)
|
||||
prevHash := hash(uint32(x>>0), shift)
|
||||
table[prevHash&tableMask] = uint16(s - 1)
|
||||
currHash := hash(uint32(x>>8), shift)
|
||||
candidate = int(table[currHash&tableMask])
|
||||
table[currHash&tableMask] = uint16(s)
|
||||
if uint32(x>>8) != load32(src, candidate) {
|
||||
nextHash = hash(uint32(x>>16), shift)
|
||||
s++
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
emitRemainder:
|
||||
if nextEmit < len(src) {
|
||||
d += emitLiteral(dst[d:], src[nextEmit:])
|
||||
}
|
||||
return d
|
||||
}
|
||||
|
|
@ -1,84 +0,0 @@
|
|||
// Copyright 2011 The Snappy-Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package snappy implements the snappy block-based compression format.
|
||||
// It aims for very high speeds and reasonable compression.
|
||||
//
|
||||
// The C++ snappy implementation is at https://github.com/google/snappy
|
||||
package snappy
|
||||
|
||||
import (
|
||||
"hash/crc32"
|
||||
)
|
||||
|
||||
/*
|
||||
Each encoded block begins with the varint-encoded length of the decoded data,
|
||||
followed by a sequence of chunks. Chunks begin and end on byte boundaries. The
|
||||
first byte of each chunk is broken into its 2 least and 6 most significant bits
|
||||
called l and m: l ranges in [0, 4) and m ranges in [0, 64). l is the chunk tag.
|
||||
Zero means a literal tag. All other values mean a copy tag.
|
||||
|
||||
For literal tags:
|
||||
- If m < 60, the next 1 + m bytes are literal bytes.
|
||||
- Otherwise, let n be the little-endian unsigned integer denoted by the next
|
||||
m - 59 bytes. The next 1 + n bytes after that are literal bytes.
|
||||
|
||||
For copy tags, length bytes are copied from offset bytes ago, in the style of
|
||||
Lempel-Ziv compression algorithms. In particular:
|
||||
- For l == 1, the offset ranges in [0, 1<<11) and the length in [4, 12).
|
||||
The length is 4 + the low 3 bits of m. The high 3 bits of m form bits 8-10
|
||||
of the offset. The next byte is bits 0-7 of the offset.
|
||||
- For l == 2, the offset ranges in [0, 1<<16) and the length in [1, 65).
|
||||
The length is 1 + m. The offset is the little-endian unsigned integer
|
||||
denoted by the next 2 bytes.
|
||||
- For l == 3, this tag is a legacy format that is no longer supported.
|
||||
*/
|
||||
const (
|
||||
tagLiteral = 0x00
|
||||
tagCopy1 = 0x01
|
||||
tagCopy2 = 0x02
|
||||
tagCopy4 = 0x03
|
||||
)
|
||||
|
||||
const (
|
||||
checksumSize = 4
|
||||
chunkHeaderSize = 4
|
||||
magicChunk = "\xff\x06\x00\x00" + magicBody
|
||||
magicBody = "sNaPpY"
|
||||
|
||||
// maxBlockSize is the maximum size of the input to encodeBlock. It is not
|
||||
// part of the wire format per se, but some parts of the encoder assume
|
||||
// that an offset fits into a uint16.
|
||||
//
|
||||
// Also, for the framing format (Writer type instead of Encode function),
|
||||
// https://github.com/google/snappy/blob/master/framing_format.txt says
|
||||
// that "the uncompressed data in a chunk must be no longer than 65536
|
||||
// bytes".
|
||||
maxBlockSize = 65536
|
||||
|
||||
// maxEncodedLenOfMaxBlockSize equals MaxEncodedLen(maxBlockSize), but is
|
||||
// hard coded to be a const instead of a variable, so that obufLen can also
|
||||
// be a const. Their equivalence is confirmed by
|
||||
// TestMaxEncodedLenOfMaxBlockSize.
|
||||
maxEncodedLenOfMaxBlockSize = 76490
|
||||
|
||||
obufHeaderLen = len(magicChunk) + checksumSize + chunkHeaderSize
|
||||
obufLen = obufHeaderLen + maxEncodedLenOfMaxBlockSize
|
||||
)
|
||||
|
||||
const (
|
||||
chunkTypeCompressedData = 0x00
|
||||
chunkTypeUncompressedData = 0x01
|
||||
chunkTypePadding = 0xfe
|
||||
chunkTypeStreamIdentifier = 0xff
|
||||
)
|
||||
|
||||
var crcTable = crc32.MakeTable(crc32.Castagnoli)
|
||||
|
||||
// crc implements the checksum specified in section 3 of
|
||||
// https://github.com/google/snappy/blob/master/framing_format.txt
|
||||
func crc(b []byte) uint32 {
|
||||
c := crc32.Update(0, crcTable, b)
|
||||
return uint32(c>>15|c<<17) + 0xa282ead8
|
||||
}
|
||||
Loading…
Reference in New Issue