mirror of
https://github.com/prometheus/prometheus.git
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4a87c002e8
This commit fixes a critique of the old storage API design, whereby the input parameters were always as raw bytes and never Protocol Buffer messages that encapsulated the data, meaning every place a read or mutation was conducted needed to manually perform said translations on its own. This is taxing. Change-Id: I4786938d0d207cefb7782bd2bd96a517eead186f
47 lines
1.1 KiB
Go
47 lines
1.1 KiB
Go
// Copyright 2013 Prometheus Team
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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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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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 leveldb
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import (
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"github.com/prometheus/prometheus/utility"
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"code.google.com/p/goprotobuf/proto"
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)
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var buffers = newBufferList(50)
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type bufferList struct {
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l utility.FreeList
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}
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func (l *bufferList) Get() (*proto.Buffer, bool) {
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if v, ok := l.l.Get(); ok {
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return v.(*proto.Buffer), ok
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}
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return proto.NewBuffer(make([]byte, 0, 4096)), false
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}
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func (l *bufferList) Give(v *proto.Buffer) bool {
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v.Reset()
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return l.l.Give(v)
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}
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func newBufferList(cap int) *bufferList {
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return &bufferList{
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l: utility.NewFreeList(cap),
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}
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}
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