Multi Threading using Visual Studio

[billabong83]

Alright so I've been reading up on threads and how to code them and I am stumped. I have been given an aissgnment to create a main thread which then creates two child threads. The program must show the threads were created and when they are terminated. Here is my program so far:

#include	<windows.h>
#include	<iostream>
#include	<process.h>
#include	<stdlib.h>

using namespace std;

int child;
int id=1;
bool f1Run=true;
bool f11Run=true;
bool f12Run=true;

unsigned __stdcall f2(void* a) {
	child=*(int*)a;
	cout << "Child Thread: " <<  *(int*)a<<" Created "<<endl;
	if(*(int*)a==11){f11Run=false;}
	if(*(int*)a==12){f12Run=false;}
	return 0;
}


unsigned __stdcall f1(void* a) {
	cout<<"Thread "<<*(int*)a<<endl;
	int id1=11;
	HANDLE t2 = (HANDLE) _beginthreadex(NULL, 0,  f2,  &id1, 0, 0);
	//Sleep(10);
	int id2=12;
	HANDLE t3 = (HANDLE) _beginthreadex(NULL, 0,  f2,  &id2, 0, 0);
	Sleep(100);
	while(f11Run||f12Run){}
	cout<<"Thread Terminated "<<child<<endl;
	f1Run=false;
	return 0;
}


void main()
{

	HANDLE t1 = (HANDLE) _beginthreadex(NULL, 0,  f1,  &id, 0, 0);
	while(f1Run){}
	cout<<"Main Thread Terminated"<<endl;
	getchar();
	
}

When I run the program, it sghows that a main thread and 2 children thread have been created however it only shows the second child thread and the main thread terminate, not the first one. Does anyone see a problem with my code? Any input would be greatly appreciated. Thanks.

[cran]

ok... both child threads are setting child and you wait for them both to end, then cout the one that set child last... do you see the problem?

-- edit... plus, it should be int main() and you are setting all these HANDLE vars, but not using them, is that for later? plus you need #include <cstdio> for getchar();

[kbw]

The thread that's running when the app starts is the main thread.

You don't want all those Run variables and while loops. You need to synchronise the threads with WaitForSingleObject.