From owner-freebsd-hackers  Sun Dec 26 20:26:41 1999
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Date: Sun, 26 Dec 1999 20:26:32 -0800 (PST)
From: Ken Bolingbroke <hacker@bolingbroke.com>
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To: Steffen Merkel <d_f0rce@gmx.de>
Cc: freebsd-hackers@FreeBSD.ORG
Subject: Re: Posix Threads
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When the main thread exits, all active threads are immediately
terminated.  Since your main subroutine has nothing after the
pthread_create(), it immediately exits, thus your secondary thread has no
chance to run.

Add a delay at the end of the main thread to give the pthread_create() the
time it needs, or just pthread_join() to wait until the secondary thread
terminates.

Ken Bolingbroke
hacker@bolingbroke.com


On Sun, 26 Dec 1999, Steffen Merkel wrote:

> Hello,
> 
> I'm learning C now for some weeks and today I wanted to program
> POSIX threads. Unfortunately my source seems not to run. Could you
> please have a look at my code and tell me whats wrong:
> 
> #include <stdio.h>
> #include <stdlib.h>
> #include <pthread.h>
> 
> void print( char *string ){
>   fprintf(stderr,"String: %s\n",string);
> }
> 
> void main(void){
>   pthread_t thread;
>   char string[] = "Hallo";
> 
>   if( pthread_create( &thread, (const pthread_attr_t *)NULL, (void *)&print,
> &string ) != 0 ){
>     perror("pthread_create()");
>     exit(EXIT_FAILURE);
>   }
> 
> }



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