frostfs-api-go/util/signature/buffer.go

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package signature
import "sync"
const poolSliceMaxSize = 64 * 1024
type buffer struct {
data []byte
}
var buffersPool = sync.Pool{
New: func() any {
return new(buffer)
},
}
func newBufferFromPool(size int) *buffer {
result := buffersPool.Get().(*buffer)
if cap(result.data) < size {
result.data = make([]byte, size)
} else {
result.data = result.data[:size]
}
return result
}
func returnBufferToPool(buf *buffer) {
if cap(buf.data) > poolSliceMaxSize {
return
}
buf.data = buf.data[:0]
buffersPool.Put(buf)
}