VC中互斥的使用

// Mutex.cpp : Defines the entry point for the console application.
//
/*
	互斥的使用
	1 互斥的创建
		CreateMutex( NULL,
			FALSE,//创建后互斥的拥有者,TRUE当前的线程拥有这个线程, FALSE不拥有
			NULL );//
	2 等候互斥
		WaitForSingleObject( hMutex,INFINITE );
	3 释放互斥
		ReleaseMutex( hMutex );
	4 关闭互斥
		CloseHandle( hMutex );
	5 MFC - CMutex
*/
#include "stdafx.h"
#include "windows.h"
#include "conio.h"

HANDLE hMutex = NULL;

DWORD WINAPI ThreadProc1( LPVOID pVoid )
{
	while( 1 )
	{
		//等候互斥
		WaitForSingleObject( hMutex, INFINITE );
		printf( "ThreadProc1-------\r\n" );
		Sleep( 1000 );
		//释放互斥
		ReleaseMutex( hMutex );
	}
	return 0;
}

DWORD WINAPI ThreadProc2( LPVOID pVoid )
{
	while( 1 )
	{
		//等候互斥
		WaitForSingleObject( hMutex, INFINITE );
		printf( "THreadProc2----------\r\n");
		Sleep( 1000 );
		//释放互斥
		ReleaseMutex( hMutex );
	}
	return 0;
}

void Mutex()
{
	//创建互斥
	hMutex = CreateMutex( NULL,
		FALSE, 
		NULL );

	// 创建线程
	DWORD dwThreadID = 0;
	HANDLE hThread[2] = { 0 };
	hThread[0] = CreateThread( NULL,
		0, ThreadProc1, NULL, 0, &dwThreadID );
	hThread[1] = CreateThread( NULL,
		0, ThreadProc2, NULL, 0, &dwThreadID );

	//等候线程结束
	WaitForMultipleObjects( 2, hThread,
		TRUE, INFINITE );


	//关闭互斥
	CloseHandle( hMutex );
}

int main(int argc, char* argv[])
{
	Mutex();

	getch();
	return 0;
}

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