gotosocial/vendor/git.iim.gay/grufwub/go-bytes/pool.go
kim (grufwub) e43a46e982 add git.iim.gay/grufwub/go-store for storage backend, replacing blob.Storage
Signed-off-by: kim (grufwub) <grufwub@gmail.com>
2021-09-11 20:12:47 +01:00

39 lines
593 B
Go

package bytes
import (
"bytes"
"sync"
)
type SizedBufferPool struct {
pool sync.Pool
len int
cap int
}
func (p *SizedBufferPool) Init(len, cap int) {
p.pool.New = func() interface{} {
buf := NewBuffer(make([]byte, len, cap))
return &buf
}
p.len = len
p.cap = cap
}
func (p *SizedBufferPool) Acquire() *bytes.Buffer {
return p.pool.Get().(*bytes.Buffer)
}
func (p *SizedBufferPool) Release(buf *bytes.Buffer) {
// If not enough cap, ignore
if buf.Cap() < p.cap {
return
}
// Set length to expected
buf.Reset()
buf.Grow(p.len)
// Place in pool
p.pool.Put(buf)
}