/*
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* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <assert.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <pthread.h>
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#include <sys/wait.h>
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#define P 16
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#define T 7
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static void *
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thread(void *arg)
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{
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assert(write(1, "", 1) == 1);
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pause();
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return arg;
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}
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static int
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process(void)
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{
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int i;
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int fds[2];
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pthread_t t;
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struct timespec ts = { .tv_nsec = 10000000 };
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(void) close(0);
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(void) close(1);
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if (pipe(fds))
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perror_msg_and_fail("pipe");
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for (i = 0; i < T; ++i)
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assert(pthread_create(&t, NULL, thread, NULL) == 0);
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for (i = 0; i < T; ++i)
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assert(read(0, fds, 1) == 1);
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(void) nanosleep(&ts, 0);
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return 0;
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}
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int
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main(void)
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{
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int i, s;
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pid_t p;
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for (i = 0; i < P; ++i) {
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p = fork();
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if (p < 0)
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perror_msg_and_fail("fork");
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if (p == 0)
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return process();
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assert(waitpid(p, &s, 0) == p);
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assert(WIFEXITED(s));
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if (WEXITSTATUS(s))
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return WEXITSTATUS(s);
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}
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return 0;
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}
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