mirror of https://github.com/v2ray/v2ray-core
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
53 lines
1016 B
53 lines
1016 B
package buf
|
|
|
|
import (
|
|
"sync"
|
|
)
|
|
|
|
// Pool provides functionality to generate and recycle buffers on demand.
|
|
type Pool interface {
|
|
// Allocate either returns a unused buffer from the pool, or generates a new one from system.
|
|
Allocate() *Buffer
|
|
// Free recycles the given buffer.
|
|
Free(*Buffer)
|
|
}
|
|
|
|
// SyncPool is a buffer pool based on sync.Pool
|
|
type SyncPool struct {
|
|
allocator *sync.Pool
|
|
}
|
|
|
|
// NewSyncPool creates a SyncPool with given buffer size.
|
|
func NewSyncPool(bufferSize uint32) *SyncPool {
|
|
pool := &SyncPool{
|
|
allocator: &sync.Pool{
|
|
New: func() interface{} { return make([]byte, bufferSize) },
|
|
},
|
|
}
|
|
return pool
|
|
}
|
|
|
|
// Allocate implements Pool.Allocate().
|
|
func (p *SyncPool) Allocate() *Buffer {
|
|
return &Buffer{
|
|
v: p.allocator.Get().([]byte),
|
|
pool: p,
|
|
}
|
|
}
|
|
|
|
// Free implements Pool.Free().
|
|
func (p *SyncPool) Free(buffer *Buffer) {
|
|
if buffer.v != nil {
|
|
p.allocator.Put(buffer.v)
|
|
}
|
|
}
|
|
|
|
const (
|
|
// Size of a regular buffer.
|
|
Size = 2 * 1024
|
|
)
|
|
|
|
var (
|
|
mediumPool Pool = NewSyncPool(Size)
|
|
)
|