1 files changed, 0 insertions, 72 deletions
diff --git a/vendor/github.com/xtaci/smux/alloc.go b/vendor/github.com/xtaci/smux/alloc.go
deleted file mode 100644
index 9e3acf3..0000000
--- a/vendor/github.com/xtaci/smux/alloc.go
+++ /dev/null
@@ -1,72 +0,0 @@
-package smux
-
-import (
-	"errors"
-	"sync"
-)
-
-var (
-	defaultAllocator *Allocator
-	debruijinPos     = [...]byte{0, 9, 1, 10, 13, 21, 2, 29, 11, 14, 16, 18, 22, 25, 3, 30, 8, 12, 20, 28, 15, 17, 24, 7, 19, 27, 23, 6, 26, 5, 4, 31}
-)
-
-func init() {
-	defaultAllocator = NewAllocator()
-}
-
-// Allocator for incoming frames, optimized to prevent overwriting after zeroing
-type Allocator struct {
-	buffers []sync.Pool
-}
-
-// NewAllocator initiates a []byte allocator for frames less than 65536 bytes,
-// the waste(memory fragmentation) of space allocation is guaranteed to be
-// no more than 50%.
-func NewAllocator() *Allocator {
-	alloc := new(Allocator)
-	alloc.buffers = make([]sync.Pool, 17) // 1B -> 64K
-	for k := range alloc.buffers {
-		i := k
-		alloc.buffers[k].New = func() interface{} {
-			return make([]byte, 1<<uint32(i))
-		}
-	}
-	return alloc
-}
-
-// Get a []byte from pool with most appropriate cap
-func (alloc *Allocator) Get(size int) []byte {
-	if size <= 0 || size > 65536 {
-		return nil
-	}
-
-	bits := msb(size)
-	if size == 1<<bits {
-		return alloc.buffers[bits].Get().([]byte)[:size]
-	} else {
-		return alloc.buffers[bits+1].Get().([]byte)[:size]
-	}
-}
-
-// Put returns a []byte to pool for future use,
-// which the cap must be exactly 2^n
-func (alloc *Allocator) Put(buf []byte) error {
-	bits := msb(cap(buf))
-	if cap(buf) == 0 || cap(buf) > 65536 || cap(buf) != 1<<bits {
-		return errors.New("allocator Put() incorrect buffer size")
-	}
-	alloc.buffers[bits].Put(buf)
-	return nil
-}
-
-// msb return the pos of most significiant bit
-// http://supertech.csail.mit.edu/papers/debruijn.pdf
-func msb(size int) byte {
-	v := uint32(size)
-	v |= v >> 1
-	v |= v >> 2
-	v |= v >> 4
-	v |= v >> 8
-	v |= v >> 16
-	return debruijinPos[(v*0x07C4ACDD)>>27]
-}