gotosocial/vendor/codeberg.org/gruf/go-pools/bytes.go

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2021-11-13 11:29:08 +00:00
package pools
import (
"sync"
"codeberg.org/gruf/go-bytes"
)
// BufferPool is a pooled allocator for bytes.Buffer objects
type BufferPool interface {
// Get fetches a bytes.Buffer from pool
Get() *bytes.Buffer
// Put places supplied bytes.Buffer in pool
Put(*bytes.Buffer)
}
// NewBufferPool returns a newly instantiated bytes.Buffer pool
func NewBufferPool(size int) BufferPool {
return &bufferPool{
pool: sync.Pool{
New: func() interface{} {
return &bytes.Buffer{B: make([]byte, 0, size)}
},
},
size: size,
}
}
// bufferPool is our implementation of BufferPool
type bufferPool struct {
pool sync.Pool
size int
}
func (p *bufferPool) Get() *bytes.Buffer {
return p.pool.Get().(*bytes.Buffer)
}
func (p *bufferPool) Put(buf *bytes.Buffer) {
if buf.Cap() < p.size {
return
}
buf.Reset()
p.pool.Put(buf)
}