v2fly/common/io/chain_writer.go

49 lines
710 B
Go

package io
import (
"io"
"sync"
"v2ray.com/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()
}