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