使用信号量实现线程同步

#include <stdio.h> #include <windows.h> int number = 1; HANDLE hDemaphore; unsigned long __stdcall ThreadProc1(void* lpParameter) { long count; while(number<100) { WaitForSingleObject(hDemaphore,INFINITE); printf("线程1当前计数: %d\n",number); number++; Sleep(100); ReleaseSemaphore(hDemaphore,1,&count); } return 0; } unsigned long __stdcall ThreadProc2(void *lpParameter) { long count; while(number<100) { WaitForSingleObject(hDemaphore,INFINITE); printf("线程2当前计数: %d\n",number); number++; Sleep(100); ReleaseSemaphore(hDemaphore,1,&count); } return 0; } int main() { HANDLE hThread1 = CreateThread(NULL,0,ThreadProc1,NULL,0,NULL); HANDLE hThread2 = CreateThread(NULL,0,ThreadProc2,NULL,0,NULL); hDemaphore = CreateSemaphore(NULL,1,100,"sem"); CloseHandle(hThread1); CloseHandle(hThread2); while(1) { ; } return 0; }