Date: Sat, 6 Dec 2008 13:23:53 +0000 (UTC) From: Ganbold Tsagaankhuu <ganbold@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r185695 - head/tools/test/pthread_vfork Message-ID: <200812061323.mB6DNrL3095080@svn.freebsd.org>
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Author: ganbold (doc committer) Date: Sat Dec 6 13:23:53 2008 New Revision: 185695 URL: http://svn.freebsd.org/changeset/base/185695 Log: This is simple testing program for revision 185647. It invokes multiple parallel threads and each thread calls vfork() system call. Approved by: kib Added: head/tools/test/pthread_vfork/ head/tools/test/pthread_vfork/pthread_vfork_test.c (contents, props changed) Added: head/tools/test/pthread_vfork/pthread_vfork_test.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/tools/test/pthread_vfork/pthread_vfork_test.c Sat Dec 6 13:23:53 2008 (r185695) @@ -0,0 +1,81 @@ +/*- + * Copyright (c) 2008 Ganbold Tsagaankhuu + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer + * in this position and unchanged. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <err.h> +#include <pthread.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#define NUM_THREADS 100 + +void * +vfork_test(void *threadid) +{ + pid_t pid; + + for (;;) { + pid = vfork(); + if (pid == 0) + _exit(0); + else if (pid == -1) + err(1, "Failed to vfork"); + } + return (NULL); +} + +/* + * This program invokes multiple threads and each thread calls + * vfork() system call. + */ +int +main(void) +{ + pthread_t threads[NUM_THREADS]; + struct sigaction reapchildren; + int rc, t; + + memset(&reapchildren, 0, sizeof(reapchildren)); + reapchildren.sa_handler = SIG_IGN; + + /* Automatically reap zombies. */ + if (sigaction(SIGCHLD, &reapchildren, NULL) == -1) + err(1, "Could not sigaction(SIGCHLD)"); + + for (t = 0; t < NUM_THREADS; t++) { + rc = pthread_create(&threads[t], NULL, vfork_test, (void *)t); + if (rc) + errc(1, rc, "pthread_create"); + } + return (0); +}
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