线程池QueueUserWorkItem

// Test1.cpp : Defines the entry point for the console application.//#include "stdafx.h"#include <assert.h>#include <Windows.h>DWORD WINAPI TestThreadPool(PVOID pContext);CRITICAL_SECTION g_cs;int _tmain(int argc, _TCHAR* argv[]){InitializeCriticalSection(&g_cs);SECURITY_ATTRIBUTES sa;sa.bInheritHandle = TRUE;sa.nLength = sizeof(SECURITY_ATTRIBUTES);sa.lpSecurityDescriptor = NULL;HANDLE hSemaphore = CreateSemaphoreW(&sa, 0 ,1, L"jyytet"); for (int i = 0; i < 10; i++){QueueUserWorkItem(TestThreadPool, L"Hello World", WT_EXECUTEDEFAULT);}QueueUserWorkItem(TestThreadPool, L"Finish", WT_EXECUTEDEFAULT);WaitForSingleObject(hSemaphore, -1);CloseHandle(hSemaphore);hSemaphore = NULL; DeleteCriticalSection(&g_cs);wprintf(L"Game over /r/n");getchar();return 0;}DWORD WINAPI TestThreadPool(PVOID pContext){if (NULL == pContext)return 0;EnterCriticalSection(&g_cs);wchar_t *pPrintf = (wchar_t *) pContext;wprintf(L"%s /r/n", pPrintf);Sleep(1000);if (wcscmp(pPrintf, L"Finish") == 0){HANDLE hSemaphore = OpenSemaphoreW(SEMAPHORE_ALL_ACCESS, FALSE, L"jyytet");assert(hSemaphore != NULL);ReleaseSemaphore(hSemaphore, 1, NULL);CloseHandle(hSemaphore);}LeaveCriticalSection(&g_cs);return 1;}