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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [gdb/] [testsuite/] [gdb.base/] [watch_thread_num.c] - Rev 833

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/* This testcase is part of GDB, the GNU debugger.
 
   Copyright 2002, 2003, 2004, 2007, 2008, 2009, 2010
   Free Software Foundation, Inc.
 
   Copyright 1992, 1993, 1994, 1995, 1999, 2002, 2003, 2007, 2008, 2009
   Free Software Foundation, Inc.
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
   This file is copied from schedlock.c.  */
 
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <pthread.h>
 
void *thread_function (void *arg); /* Pointer to function executed by each thread */
 
#define NUM 5
 
static unsigned int shared_var = 1;
 
int main () {
    int res;
    pthread_t threads[NUM];
    void *thread_result;
    long i;
 
    for (i = 0; i < NUM; i++)
      {
        res = pthread_create (&threads[i],
                             NULL,
                             thread_function,
			     (void *) i);
      }
 
    thread_result = thread_function ((void *) i);
 
    exit (EXIT_SUCCESS);
}
 
void *thread_function (void *arg) {
    int my_number = (long) arg;
    /* Don't run forever.  Run just short of it :)  */
    while (shared_var > 0)
      {
        shared_var++;
	usleep (1); /* Loop increment.  */
      }
 
    pthread_exit (NULL);
}
 
 

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