用IO完成端口实现管道异步服务端

最新推荐文章于 2024-11-13 19:36:52 发布

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最新推荐文章于 2024-11-13 19:36:52 发布 · 546 阅读

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本文详细介绍了如何在Windows编程中使用异步IO完成端口实现管道服务端，并提供了创建和连接客户端的代码示例。服务端通过接收连接并处理消息，展示了异步通信的优势。

windows编程中，如果涉及到本地两个进程之间的通信，最好的方式就是管道，管道支持同步和异步两种模式，作为服务端，当然用异步好，本文章直接提供用IO完成端口实现管道服务端的代码。

// PipeServer.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <Windows.h>


struct MyOverlapped
{
   
   
	OVERLAPPED overlapped;
	char szBuf[1024];
	int iType;
	HANDLE hPipe;
};


LPTSTR lpszPipename = TEXT("\\\\.\\pipe\\pipename");

DWORD WINAPI ThreadFunc(LPVOID);

HANDLE gPipeInst = INVALID_HANDLE_VALUE;

int main()
{
   
   
	HANDLE iocp = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 0);

	gPipeInst = CreateNamedPipe(
		lpszPipename,            // pipe name 
		PIPE_ACCESS_DUPLEX |     // read/write access 
		FILE_FLAG_OVERLAPPED,    // overlapped mode 
		PIPE_TYPE_MESSAGE |      // message-type pipe 
		PIPE_READMODE_MESSAGE |  // message-read mode 
		PIPE_WAIT,               // blocking mode 
		PIPE_UNLIMITED_INSTANCES, // number of instances 
		0,   // output buffer size 
		0,   // input buffer size 
		NMPWAIT_WAIT_FOREVER,     // client time-out 
		NULL);                   // default security attributes

	CreateIoCompletionPort(gPipeInst, iocp, 10001, 0);

	MyOverlapped *overlapped = new MyOverlapped;
	memset(overlapped, 0, sizeof(MyOverlapped));
	overlapped-