61baf725ec
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.
gdb/ChangeLog:
Update copyright year range in all GDB files.
91 lines
2.1 KiB
C
91 lines
2.1 KiB
C
/* Create threads from multiple threads in parallel.
|
|
Copyright 2007-2017 Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
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/>. */
|
|
|
|
#include <pthread.h>
|
|
#include <stdio.h>
|
|
#include <limits.h>
|
|
|
|
#define NUM_CREATE 1
|
|
#define NUM_THREAD 8
|
|
|
|
void *
|
|
thread_function (void *arg)
|
|
{
|
|
int x = * (int *) arg;
|
|
|
|
printf ("Thread <%d> executing\n", x);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void *
|
|
create_function (void *arg)
|
|
{
|
|
pthread_attr_t attr;
|
|
pthread_t threads[NUM_THREAD];
|
|
int args[NUM_THREAD];
|
|
int i = * (int *) arg;
|
|
int j;
|
|
|
|
pthread_attr_init (&attr); /* set breakpoint 1 here. */
|
|
pthread_attr_setstacksize (&attr, 2*PTHREAD_STACK_MIN);
|
|
|
|
/* Create a ton of quick-executing threads, then wait for them to
|
|
complete. */
|
|
for (j = 0; j < NUM_THREAD; ++j)
|
|
{
|
|
args[j] = i * 1000 + j;
|
|
pthread_create (&threads[j], &attr, thread_function, &args[j]);
|
|
}
|
|
|
|
for (j = 0; j < NUM_THREAD; ++j)
|
|
pthread_join (threads[j], NULL);
|
|
|
|
pthread_attr_destroy (&attr);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
pthread_attr_t attr;
|
|
pthread_t threads[NUM_CREATE];
|
|
int args[NUM_CREATE];
|
|
int n, i;
|
|
|
|
pthread_attr_init (&attr);
|
|
pthread_attr_setstacksize (&attr, 2*PTHREAD_STACK_MIN);
|
|
|
|
for (n = 0; n < 100; ++n)
|
|
{
|
|
for (i = 0; i < NUM_CREATE; i++)
|
|
{
|
|
args[i] = i;
|
|
pthread_create (&threads[i], &attr, create_function, &args[i]);
|
|
}
|
|
|
|
create_function (&i);
|
|
for (i = 0; i < NUM_CREATE; i++)
|
|
pthread_join (threads[i], NULL);
|
|
}
|
|
|
|
pthread_attr_destroy (&attr);
|
|
|
|
return 0;
|
|
}
|