学步园

采用二个信号量来模拟生产者与消费者，这个想法不是我首先想到的：且看代码

#include <windows.h><br /> #include <stdio.h><br /> HANDLE hFull, hEmpty;<br /> volatile int buffer = 0;<br /> DWORD WINAPI ProducerProc(LPVOID lpVoid);<br /> DWORD WINAPI ConsumerProc(LPVOID lpVoid);<br /> int main() {<br /> HANDLE hProducer, hConsumer;<br /> hFull = CreateSemaphore(NULL, 1000, 1000, NULL);<br /> hEmpty = CreateSemaphore(NULL, 0, 1000, NULL);<br /> hProducer = CreateThread(NULL, 0, ProducerProc, NULL, 0, NULL);<br /> hConsumer = CreateThread(NULL, 0, ConsumerProc, NULL, 0, NULL);<br /> Sleep(INFINITE);<br /> return 0;<br /> }<br /> DWORD WINAPI ProducerProc(LPVOID lpVoid) {<br /> while(TRUE) {<br /> WaitForSingleObject(hFull, INFINITE);<br /> Sleep(rand() % 100);<br /> printf("生产了一个产品：%d/n", ++buffer);<br /> ReleaseSemaphore(hEmpty, 1, NULL);<br /> }<br /> return 0;<br /> }</p> <p>DWORD WINAPI ConsumerProc(LPVOID lpVoid) {<br /> while(TRUE) {<br /> WaitForSingleObject(hEmpty, INFINITE);<br /> Sleep(rand() % 120);<br /> printf("消费了一个产品：%d/n", --buffer);<br /> ReleaseSemaphore(hFull, 1, NULL);<br /> }<br /> return 0;<br /> }