extract buffer pool from go-msgio

.travis.yml

+sudo: false
+
+language: go
+
+go:
+  - 1.9.x
+
+install:
+  - make deps
+
+script:
+  - bash <(curl -s https://raw.githubusercontent.com/ipfs/ci-helpers/master/travis-ci/run-standard-tests.sh)
+
+cache:
+  directories:
+    - $GOPATH/src/gx
+
+notifications:
+  email: false

LICENSE

+The MIT License (MIT)
+
+Copyright (c) 2014 Juan Batiz-Benet
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

+go-buffer-pool
+==================
+
+[![](https://img.shields.io/badge/made%20by-Protocol%20Labs-blue.svg?style=flat-square)](https://protocol.ai)
+[![Travis CI](https://travis-ci.org/libp2p/go-buffer-pool.svg?branch=master)](https://travis-ci.org/libp2p/go-buffer-pool)
+
+> A variable size buffer pool for go.
+
+## Table of Contents
+
+- [Use Case](#use-case)
+    - [Advantages over GC](#advantages-over-gc)
+    - [Disadvantages over GC:](#disadvantages-over-gc)
+- [Contribute](#contribute)
+- [License](#license)
+
+## Use Case
+
+Use this when you need to repeatedly allocate and free a bunch of temporary buffers of approximately the same size.
+
+### Advantages over GC
+
+* Reduces Memory Usage:
+  * We don't have to wait for a GC to run before we can reuse memory. This is essential if you're repeatedly allocating large short-lived buffers.
+
+* Reduces CPU usage:
+  * It takes some load off of the GC (due to buffer reuse).
+  * We don't have to zero buffers (fewer wasteful memory writes).
+
+### Disadvantages over GC:
+
+* Can leak memory contents. Unlike the go GC, we *don't* zero memory.
+* All buffers have a capacity of a power of 2. This is fine if you either (a) actually need buffers with this size or (b) expect these buffers to be temporary.
+* Requires that buffers be returned explicitly. This can lead to race conditions and memory corruption if the buffer is released while it's still in use.
+
+## Contribute
+
+PRs are welcome!
+
+Small note: If editing the Readme, please conform to the [standard-readme](https://github.com/RichardLitt/standard-readme) specification.
+
+## License
+
+MIT © Protocol Labs

pool.go

@@ -18,7 +18,7 @@
 //	// small2 len: 1024
 //	// large2 len: 4194304
 //
-package mpool
+package pool
 
 import (
 	"fmt"

pool_test.go

@@ -5,7 +5,7 @@
 // Pool is no-op under race detector, so all these tests do not work.
 // +build !race
 
-package mpool
+package pool
 
 import (
 	"fmt"