mirror of git://sourceware.org/git/glibc.git
121 lines
2.8 KiB
C
121 lines
2.8 KiB
C
/* Copyright (C) 2002, 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Roland McGrath <roland@redhat.com>, 2002.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <errno.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/wait.h>
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static void *
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thread_function (void * arg)
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{
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int i = (intptr_t) arg;
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int status;
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pid_t pid;
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pid_t pid2;
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pid = fork ();
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switch (pid)
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{
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case 0:
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printf ("%ld for %d\n", (long int) getpid (), i);
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struct timespec ts = { .tv_sec = 0, .tv_nsec = 100000000 * i };
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nanosleep (&ts, NULL);
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_exit (i);
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break;
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case -1:
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printf ("fork: %m\n");
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return (void *) 1l;
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break;
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}
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pid2 = TEMP_FAILURE_RETRY (waitpid (pid, &status, 0));
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if (pid2 != pid)
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{
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printf ("waitpid returned %ld, expected %ld\n",
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(long int) pid2, (long int) pid);
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return (void *) 1l;
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}
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printf ("%ld with %d, expected %d\n",
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(long int) pid, WEXITSTATUS (status), i);
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return WEXITSTATUS (status) == i ? NULL : (void *) 1l;
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}
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#define N 5
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static const int t[N] = { 7, 6, 5, 4, 3 };
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int
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main (void)
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{
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pthread_t th[N];
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int i;
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int result = 0;
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pthread_attr_t at;
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if (pthread_attr_init (&at) != 0)
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{
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puts ("attr_init failed");
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return 1;
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}
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if (pthread_attr_setstacksize (&at, 1 * 1024 * 1024) != 0)
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{
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puts ("attr_setstacksize failed");
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return 1;
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}
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for (i = 0; i < N; ++i)
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if (pthread_create (&th[i], NULL, thread_function,
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(void *) (intptr_t) t[i]) != 0)
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{
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printf ("creation of thread %d failed\n", i);
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exit (1);
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}
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if (pthread_attr_destroy (&at) != 0)
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{
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puts ("attr_destroy failed");
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return 1;
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}
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for (i = 0; i < N; ++i)
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{
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void *v;
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if (pthread_join (th[i], &v) != 0)
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{
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printf ("join of thread %d failed\n", i);
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result = 1;
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}
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else if (v != NULL)
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{
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printf ("join %d successful, but child failed\n", i);
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result = 1;
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}
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else
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printf ("join %d successful\n", i);
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}
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return result;
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}
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