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04277e02d7
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
121 lines
2.1 KiB
C
121 lines
2.1 KiB
C
/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@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, see
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<http://www.gnu.org/licenses/>. */
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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 <unistd.h>
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#include <sys/wait.h>
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static int val;
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static void
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prepare1 (void)
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{
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val *= 2;
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}
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static void
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prepare2 (void)
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{
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++val;
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}
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static void
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parent1 (void)
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{
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val += 4;
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}
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static void
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parent2 (void)
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{
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val *= 4;
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}
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static void
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child1 (void)
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{
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val += 8;
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}
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static void
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child2 (void)
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{
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val *= 8;
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}
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static int
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do_test (void)
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{
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pid_t pid;
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int status = 0;
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if (pthread_atfork (prepare1, parent1, child1) != 0)
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{
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puts ("1st atfork failed");
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exit (1);
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}
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if (pthread_atfork (prepare2, parent2, child2) != 0)
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{
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puts ("2nd atfork failed");
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exit (1);
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}
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pid = fork ();
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if (pid == -1)
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{
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puts ("fork failed");
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exit (1);
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}
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if (pid != 0)
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{
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/* Parent. */
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if (val != 24)
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{
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printf ("expected val=%d, got %d\n", 24, val);
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exit (1);
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}
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if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
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{
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puts ("waitpid failed");
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exit (1);
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}
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}
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else
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{
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/* Child. */
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if (val != 80)
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{
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printf ("expected val=%d, got %d\n", 80, val);
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exit (2);
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}
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}
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return status;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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