網易公開課,一個多線程的例子,VC2010控制檯程序測試通過。
//
HANDLE hSemaphore;
typedef struct _THREADDATA
{
int agent;
int *numTickets;
}*LPTHREADDATA, THREADDATA;
DWORD _stdcall SellTickets(LPVOID lpParameter);
{
int agentnum = AGENTNUM;
int numTickets = 10;
HANDLE handle[AGENTNUM];
hSemaphore = CreateSemaphore(NULL, 1, 1, NULL);
LPTHREADDATA agentdata = new THREADDATA[AGENTNUM];
for(int i=0;i<agentnum;i++) {
agentdata[i].agent = i+1;
agentdata[i].numTickets = &numTickets;
handle[i] = CreateThread(NULL, 1,SellTickets, &agentdata[i], 0, NULL);
}
WaitForMultipleObjects(AGENTNUM,handle,TRUE,INFINITE);
delete(agentdata);
return 0;
}
{
while(TRUE) {
WaitForSingleObject(hSemaphore, INFINITE);
LPTHREADDATA pData = (LPTHREADDATA)lpParameter;
if(*(pData->numTickets) == 0) break;
printf("子線程的線程ID號爲:%d,售票點:%d,賣出機票編號:%d\n",GetCurrentThreadId(),pData->agent,*(pData->numTickets));
(*(pData->numTickets)) --;
ReleaseSemaphore(hSemaphore, 1, NULL);
if(rand()%3 <= 2 ) Sleep(500);
}
ReleaseSemaphore(hSemaphore, 1, NULL);
return 0;
}