127 lines
2.9 KiB
Go
127 lines
2.9 KiB
Go
/*
|
|
* Copyright 2020 The Dragonfly Authors
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
//go:generate mockgen -destination host_manager_mock.go -source host_manager.go -package resource
|
|
|
|
package resource
|
|
|
|
import (
|
|
"sync"
|
|
|
|
pkggc "d7y.io/dragonfly/v2/pkg/gc"
|
|
"d7y.io/dragonfly/v2/pkg/types"
|
|
"d7y.io/dragonfly/v2/scheduler/config"
|
|
)
|
|
|
|
const (
|
|
// GC host id.
|
|
GCHostID = "host"
|
|
)
|
|
|
|
// HostManager is the interface used for host manager.
|
|
type HostManager interface {
|
|
// Load returns host for a key.
|
|
Load(string) (*Host, bool)
|
|
|
|
// Store sets host.
|
|
Store(*Host)
|
|
|
|
// LoadOrStore returns host the key if present.
|
|
// Otherwise, it stores and returns the given host.
|
|
// The loaded result is true if the host was loaded, false if stored.
|
|
LoadOrStore(*Host) (*Host, bool)
|
|
|
|
// Delete deletes host for a key.
|
|
Delete(string)
|
|
|
|
// Try to reclaim host.
|
|
RunGC() error
|
|
}
|
|
|
|
// hostManager contains content for host manager.
|
|
type hostManager struct {
|
|
// Host sync map.
|
|
*sync.Map
|
|
}
|
|
|
|
// New host manager interface.
|
|
func newHostManager(cfg *config.GCConfig, gc pkggc.GC) (HostManager, error) {
|
|
h := &hostManager{
|
|
Map: &sync.Map{},
|
|
}
|
|
|
|
if err := gc.Add(pkggc.Task{
|
|
ID: GCHostID,
|
|
Interval: cfg.HostGCInterval,
|
|
Timeout: cfg.HostGCInterval,
|
|
Runner: h,
|
|
}); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return h, nil
|
|
}
|
|
|
|
// Load returns host for a key.
|
|
func (h *hostManager) Load(key string) (*Host, bool) {
|
|
rawHost, loaded := h.Map.Load(key)
|
|
if !loaded {
|
|
return nil, false
|
|
}
|
|
|
|
return rawHost.(*Host), loaded
|
|
}
|
|
|
|
// Store sets host.
|
|
func (h *hostManager) Store(host *Host) {
|
|
h.Map.Store(host.ID, host)
|
|
}
|
|
|
|
// LoadOrStore returns host the key if present.
|
|
// Otherwise, it stores and returns the given host.
|
|
// The loaded result is true if the host was loaded, false if stored.
|
|
func (h *hostManager) LoadOrStore(host *Host) (*Host, bool) {
|
|
rawHost, loaded := h.Map.LoadOrStore(host.ID, host)
|
|
return rawHost.(*Host), loaded
|
|
}
|
|
|
|
// Delete deletes host for a key.
|
|
func (h *hostManager) Delete(key string) {
|
|
h.Map.Delete(key)
|
|
}
|
|
|
|
// Try to reclaim host.
|
|
func (h *hostManager) RunGC() error {
|
|
h.Map.Range(func(_, value any) bool {
|
|
host, ok := value.(*Host)
|
|
if !ok {
|
|
host.Log.Error("invalid host")
|
|
return true
|
|
}
|
|
|
|
if host.PeerCount.Load() == 0 &&
|
|
host.ConcurrentUploadCount.Load() == 0 &&
|
|
host.Type == types.HostTypeNormal {
|
|
host.Log.Info("host has been reclaimed")
|
|
h.Delete(host.ID)
|
|
}
|
|
|
|
return true
|
|
})
|
|
|
|
return nil
|
|
}
|