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-rw-r--r--vendor/github.com/pquerna/ffjson/fflib/v1/buffer_pool.go105
1 files changed, 0 insertions, 105 deletions
diff --git a/vendor/github.com/pquerna/ffjson/fflib/v1/buffer_pool.go b/vendor/github.com/pquerna/ffjson/fflib/v1/buffer_pool.go
deleted file mode 100644
index a021c57cf..000000000
--- a/vendor/github.com/pquerna/ffjson/fflib/v1/buffer_pool.go
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.3
-
-package v1
-
-// Allocation pools for Buffers.
-
-import "sync"
-
-var pools [14]sync.Pool
-var pool64 *sync.Pool
-
-func init() {
- var i uint
- // TODO(pquerna): add science here around actual pool sizes.
- for i = 6; i < 20; i++ {
- n := 1 << i
- pools[poolNum(n)].New = func() interface{} { return make([]byte, 0, n) }
- }
- pool64 = &pools[0]
-}
-
-// This returns the pool number that will give a buffer of
-// at least 'i' bytes.
-func poolNum(i int) int {
- // TODO(pquerna): convert to log2 w/ bsr asm instruction:
- // <https://groups.google.com/forum/#!topic/golang-nuts/uAb5J1_y7ns>
- if i <= 64 {
- return 0
- } else if i <= 128 {
- return 1
- } else if i <= 256 {
- return 2
- } else if i <= 512 {
- return 3
- } else if i <= 1024 {
- return 4
- } else if i <= 2048 {
- return 5
- } else if i <= 4096 {
- return 6
- } else if i <= 8192 {
- return 7
- } else if i <= 16384 {
- return 8
- } else if i <= 32768 {
- return 9
- } else if i <= 65536 {
- return 10
- } else if i <= 131072 {
- return 11
- } else if i <= 262144 {
- return 12
- } else if i <= 524288 {
- return 13
- } else {
- return -1
- }
-}
-
-// Send a buffer to the Pool to reuse for other instances.
-// You may no longer utilize the content of the buffer, since it may be used
-// by other goroutines.
-func Pool(b []byte) {
- if b == nil {
- return
- }
- c := cap(b)
-
- // Our smallest buffer is 64 bytes, so we discard smaller buffers.
- if c < 64 {
- return
- }
-
- // We need to put the incoming buffer into the NEXT buffer,
- // since a buffer guarantees AT LEAST the number of bytes available
- // that is the top of this buffer.
- // That is the reason for dividing the cap by 2, so it gets into the NEXT bucket.
- // We add 2 to avoid rounding down if size is exactly power of 2.
- pn := poolNum((c + 2) >> 1)
- if pn != -1 {
- pools[pn].Put(b[0:0])
- }
- // if we didn't have a slot for this []byte, we just drop it and let the GC
- // take care of it.
-}
-
-// makeSlice allocates a slice of size n -- it will attempt to use a pool'ed
-// instance whenever possible.
-func makeSlice(n int) []byte {
- if n <= 64 {
- return pool64.Get().([]byte)[0:n]
- }
-
- pn := poolNum(n)
-
- if pn != -1 {
- return pools[pn].Get().([]byte)[0:n]
- } else {
- return make([]byte, n)
- }
-}