mirror of https://github.com/v2ray/v2ray-core
49 lines
723 B
Go
49 lines
723 B
Go
|
package io
|
||
|
|
|
||
|
|
import (
|
||
|
|
"io"
|
||
|
|
"sync"
|
||
|
|
|
||
|
|
"github.com/v2ray/v2ray-core/common/alloc"
|
||
|
|
)
|
||
|
|
|
||
|
|
type ChainWriter struct {
|
||
|
|
sync.Mutex
|
||
|
|
writer Writer
|
||
|
|
}
|
||
|
|
|
||
|
|
func NewChainWriter(writer Writer) *ChainWriter {
|
||
|
|
return &ChainWriter{
|
||
|
|
writer: writer,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (this *ChainWriter) Write(payload []byte) (int, error) {
|
||
|
|
if this.writer == nil {
|
||
|
|
return 0, io.EOF
|
||
|
|
}
|
||
|
|
|
||
|
|
size := len(payload)
|
||
|
|
buffer := alloc.NewBufferWithSize(size).Clear()
|
||
|
|
buffer.Append(payload)
|
||
|
|
|
||
|
|
this.Lock()
|
||
|
|
defer this.Unlock()
|
||
|
|
if this.writer == nil {
|
||
|
|
return 0, io.EOF
|
||
|
|
}
|
||
|
|
|
||
|
|
err := this.writer.Write(buffer)
|
||
|
|
if err != nil {
|
||
|
|
return 0, err
|
||
|
|
}
|
||
|
|
return size, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (this *ChainWriter) Release() {
|
||
|
|
this.Lock()
|
||
|
|
this.writer.Release()
|
||
|
|
this.writer = nil
|
||
|
|
this.Unlock()
|
||
|
|
}
|