/* This testcase is part of GDB, the GNU debugger.
- Copyright 2002, 2003, 2004, 2007, 2008, 2009 Free Software Foundation, Inc.
+ Copyright 2002-2015 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
#include <stdlib.h>
#include <pthread.h>
-void *thread_function(void *arg); /* Pointer to function executed by each thread */
+void *thread_function (void *arg); /* Function executed by each thread. */
#define NUM 5
unsigned int args[NUM+1];
-int main() {
+int
+main ()
+{
int res;
pthread_t threads[NUM];
void *thread_result;
long i;
+ /* To keep the test determinative, initialize args first,
+ then start all the threads. Otherwise, the way watchthreads.exp
+ is written, we have to worry about things like threads[0] getting
+ to 29 hits of args[0] before args[1] gets changed. */
+
+ for (i = 0; i < NUM; i++)
+ {
+ /* The call to usleep is so that when the watchpoint triggers,
+ the pc is still on the same line. */
+ args[i] = 1; usleep (1); /* Init value. */
+ }
+
for (i = 0; i < NUM; i++)
{
- args[i] = 1; /* Init value. */
- res = pthread_create(&threads[i],
- NULL,
- thread_function,
- (void *) i);
+ res = pthread_create (&threads[i],
+ NULL,
+ thread_function,
+ (void *) i);
}
args[i] = 1;
thread_function ((void *) i);
- exit(EXIT_SUCCESS);
+ exit (EXIT_SUCCESS);
}
-void *thread_function(void *arg) {
+void *
+thread_function (void *arg)
+{
int my_number = (long) arg;
int *myp = (int *) &args[my_number];
(*myp) ++; usleep (1); /* Loop increment. */
}
- pthread_exit(NULL);
+ pthread_exit (NULL);
}