mirror of https://github.com/tikv/client-go.git
40 lines
1.2 KiB
Go
40 lines
1.2 KiB
Go
// Copyright 2019 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package store
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import "github.com/tikv/client-go/locate"
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// batchKeys is a batch of keys in the same region.
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type batchKeys struct {
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region locate.RegionVerID
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keys [][]byte
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}
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// appendBatchBySize appends keys to []batchKeys. It may split the keys to make
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// sure each batch's size does not exceed the limit.
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func appendBatchBySize(b []batchKeys, region locate.RegionVerID, keys [][]byte, sizeFn func([]byte) int, limit int) []batchKeys {
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var start, end int
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for start = 0; start < len(keys); start = end {
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var size int
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for end = start; end < len(keys) && size < limit; end++ {
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size += sizeFn(keys[end])
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}
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b = append(b, batchKeys{
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region: region,
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keys: keys[start:end],
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})
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}
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return b
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}
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