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* Problem Executing thread.
@ 2004-11-11 12:40 Mukund JB.
  2004-11-13 23:12 ` Jon Masters
  0 siblings, 1 reply; 2+ messages in thread
From: Mukund JB. @ 2004-11-11 12:40 UTC (permalink / raw)
  To: linuxppc-embedded


Hai all,
I have a query regarding the threads in Linux.
I wrote an application using the pthreads where in I was to read & write
asynchronously. The read  &* write functions are as follows :

void * read( void * X)
{
	int a =3D0;
	while(a< 1000)
	{
		printf("IN read thread %d\n",a);
		a++;
	}
	pthread_exit(0);
}

void * read( void * X)
{
	int b =3D0;
	while(b< 1000)
	{
		printf("IN write thread %d\n",b);
		b++;
	}
	pthread_exit(0);
}

The Output I get is just a series of 1000 read thread printf statements
and a series of 1000 write thread printf statements. Its like as
follows:-

IN read thread 0
IN read thread 1
IN read thread 2
IN read thread 3
.......
.......
.......
IN read thread 1000
IN write thread 0
IN write thread 1
IN write thread 2
IN write thread 3
.......
.......
.......
IN write thread 1000

Why is this happening?=20
Why are my threads getting executed one after the other rather than
simultaneously.


Thanks for the help in advance.

Regards,
Mukund jampala

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2004-11-11 12:40 Problem Executing thread Mukund JB.
2004-11-13 23:12 ` Jon Masters

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