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Code Issues Releases Wiki Activity

avoid heap allocation for buffer variables

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This commit is contained in:
Darien Raymond 2018-11-16 10:30:26 +01:00
parent f2f67132a7
commit db5259e75b
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GPG Key ID: 7251FFA14BB18169
1 changed files with 6 additions and 3 deletions
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9
common/buf/buffer.go
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@ -25,9 +25,11 @@ func (b *Buffer) Release() {
if b == nil || b.v == nil {
return
}
pool.Put(b.v)
p := b.v
b.v = nil
b.Clear()
pool.Put(p)
}
// Clear clears the content of the buffer, results an empty buffer with
@ -57,7 +59,7 @@ func (b *Buffer) Bytes() []byte {
func (b *Buffer) Extend(n int32) []byte {
end := b.end + n
if end > int32(len(b.v)) {
panic(newError("out of bound: ", end))
panic("extending out of bound")
}
ext := b.v[b.end:end]
b.end = end
@ -179,7 +181,8 @@ func (b *Buffer) ReadFrom(reader io.Reader) (int64, error) {
func (b *Buffer) ReadFullFrom(reader io.Reader, size int32) (int64, error) {
end := b.end + size
if end > int32(len(b.v)) {
return 0, newError("out of bound: ", end)
v := end
return 0, newError("out of bound: ", v)
}
n, err := io.ReadFull(reader, b.v[b.end:end])
b.end += int32(n)