typedef RTL_SRWLOCK SRWLOCK, *PSRWLOCK;

typedef struct _RTL_SRWLOCK {

    PVOID Ptr;

} RTL_SRWLOCK, *PRTL_SRWLOCK; 

// 初始化讀寫鎖

WINBASEAPI

VOID

WINAPI

InitializeSRWLock (

     __out PSRWLOCK SRWLock

 );

// 獨占式訪問

WINBASEAPI

VOID

WINAPI

AcquireSRWLockExclusive (

     __inout PSRWLOCK SRWLock

 );

// 共享式訪問

WINBASEAPI

VOID

WINAPI

AcquireSRWLockShared (

     __inout PSRWLOCK SRWLock

 );

// 獨占式釋放

WINBASEAPI

VOID

WINAPI

ReleaseSRWLockExclusive (

     __inout PSRWLOCK SRWLock

 );

// 共享式釋放

WINBASEAPI

VOID

WINAPI

ReleaseSRWLockShared (

     __inout PSRWLOCK SRWLock

 );

// SRWLock.cpp : 定義控制臺應用程序的入口點。

//

#include "stdafx.h"

#include <iostream>

#include <windows.h>

#include <process.h>  

using namespace std;

unsigned int __stdcall ReadThread(PVOID ParameterData);

unsigned int __stdcall WriteThread(PVOID ParameterData);

const int NUM = 30, READER_SIZE = 10;

HANDLE ThreadRead[NUM],  ThreadWrite[NUM];

SRWLOCK __SRWLock;

int main()

{

	InitializeSRWLock(&__SRWLock);

	int i = 0;

	for (; i<NUM; i++) {

		ThreadRead[i] = (HANDLE)_beginthreadex(NULL, 0, ReadThread, NULL, 0, NULL);

		ThreadWrite[i] = (HANDLE)_beginthreadex(NULL, 0, WriteThread, NULL, 0, NULL);

	}

	WaitForMultipleObjects(NUM, ThreadRead, TRUE, INFINITE);

	WaitForMultipleObjects(NUM, ThreadWrite, TRUE, INFINITE);

	cout << "運行完畢" << endl;

	getchar();

	return 0;

}

unsigned int __stdcall ReadThread(PVOID ParameterData) {

	AcquireSRWLockShared(&__SRWLock);

	cout << "ID" << GetCurrentThreadId() << "   Read Thread Begin!" << endl;

	Sleep(100);

	cout << "ID" << GetCurrentThreadId() << "   Read Thread Terminate!" << endl;

	ReleaseSRWLockShared(&__SRWLock);

	return 0;

}

unsigned int __stdcall WriteThread(PVOID ParameterData) {

	AcquireSRWLockExclusive(&__SRWLock);

	cout << "ID" << GetCurrentThreadId() << "       WRITE Thread Begin~~~~~~~~~~" << endl;

	Sleep(200);

	cout << "ID" << GetCurrentThreadId() << "	    WRITE Thread Terminate~~~~~~" << endl;

	ReleaseSRWLockExclusive(&__SRWLock);

	return 0;

}