From 31b2a3faef704801373f36d556a64ee03e2f73a1 Mon Sep 17 00:00:00 2001
From: Brad Fitzpatrick <brad@danga.com>
Date: Mon, 25 Aug 2014 21:17:50 -0700
Subject: [PATCH] Add new pools package, to aggregate common sync.Pool types.

Change-Id: I69a21844f38ca3452497726d4786bd144d0218f0
---
 pkg/pools/pools.go | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 pkg/pools/pools.go

diff --git a/pkg/pools/pools.go b/pkg/pools/pools.go
new file mode 100644
index 000000000..4fc2f2e91
--- /dev/null
+++ b/pkg/pools/pools.go
@@ -0,0 +1,41 @@
+/*
+Copyright 2014 The Camlistore 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.
+*/
+
+package pools
+
+import (
+	"bytes"
+	"sync"
+)
+
+// bytesBuffer is a pool of *bytes.Buffer.
+// Callers must Reset the buffer after obtaining it.
+var bytesBuffer = sync.Pool{
+	New: func() interface{} { return new(bytes.Buffer) },
+}
+
+// BytesBuffer returns an empty bytes.Buffer.
+// It should be returned with PutBuffer.
+func BytesBuffer() *bytes.Buffer {
+	buf := bytesBuffer.Get().(*bytes.Buffer)
+	buf.Reset()
+	return buf
+}
+
+// PutBuffer returns a bytes.Buffer previously obtained with BytesBuffer.
+func PutBuffer(buf *bytes.Buffer) {
+	bytesBuffer.Put(buf)
+}