WaitForMultipleOjbect 到底什么意思?
本帖最后由 walfud 于 2012-03-07 10:10:24 编辑
#include <iostream>
#include <windows.h>
using namespace std;
#define MAX_SEM_COUNT 10
#define THREADCOUNT 12
HANDLE ghSemaphore;
DWORD WINAPI ThreadProc( LPVOID );
void main()
{
HANDLE aThread[THREADCOUNT];
DWORD ThreadID;
int i;
// Create a semaphore with initial and max counts of MAX_SEM_COUNT
ghSemaphore = CreateSemaphore(
NULL, // default security attributes
MAX_SEM_COUNT, // initial count
MAX_SEM_COUNT, // maximum count
NULL); // unnamed semaphore
if (ghSemaphore == NULL)
{
printf("CreateSemaphore error: %d\n", GetLastError());
return;
}
// Create worker threads
for( i=0; i < THREADCOUNT; i++ )
{
aThread[i] = CreateThread(
NULL, // default security attributes
0, // default stack size
(LPTHREAD_START_ROUTINE) ThreadProc,
NULL, // no thread function arguments
0, // default creation flags
&ThreadID); // receive thread identifier
if( aThread[i] == NULL )
{
printf("CreateThread error: %d\n", GetLastError());
return;
}
}
// Wait for all threads to terminate
WaitForMultipleObjects(THREADCOUNT, aThread, TRUE, INFINITE); // 这个函数到底是什么作用? 什么叫做等待内核对象?
// Close thread and semaphore handles
for( i=0; i < THREADCOUNT; i++ )
CloseHandle(aThread[i]);
CloseHandle(ghSemaphore);
}
DWORD WINAPI ThreadProc( LPVOID lpParam )
{
BOOL bContinue=TRUE;
while(bContinue)
{}
return TRUE;
}
