Date: Wed, 14 Dec 2011 23:26:48 +0000 (UTC) From: Jilles Tjoelker <jilles@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r228512 - head/tools/regression/pipe Message-ID: <201112142326.pBENQmDF019365@svn.freebsd.org>
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Author: jilles Date: Wed Dec 14 23:26:48 2011 New Revision: 228512 URL: http://svn.freebsd.org/changeset/base/228512 Log: Add a test for r228510. Added: head/tools/regression/pipe/pipe-reverse2.c (contents, props changed) Added: head/tools/regression/pipe/pipe-reverse2.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/tools/regression/pipe/pipe-reverse2.c Wed Dec 14 23:26:48 2011 (r228512) @@ -0,0 +1,67 @@ +/*- + * Copyright (c) 2010 Jilles Tjoelker + * 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. + * 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. + * + * $FreeBSD$ + */ + +#include <sys/select.h> + +#include <err.h> +#include <stdio.h> +#include <unistd.h> + +/* + * Check that pipes can be selected for writing in the reverse direction. + */ +int +main(int argc, char *argv[]) +{ + int pip[2]; + fd_set set; + int n; + + if (pipe(pip) == -1) + err(1, "FAIL: pipe"); + + FD_ZERO(&set); + FD_SET(pip[0], &set); + n = select(pip[1] + 1, NULL, &set, NULL, &(struct timeval){ 0, 0 }); + if (n != 1) + errx(1, "FAIL: select initial reverse direction"); + + n = write(pip[0], "x", 1); + if (n != 1) + err(1, "FAIL: write reverse direction"); + + FD_ZERO(&set); + FD_SET(pip[0], &set); + n = select(pip[1] + 1, NULL, &set, NULL, &(struct timeval){ 0, 0 }); + if (n != 1) + errx(1, "FAIL: select reverse direction after write"); + + printf("PASS\n"); + + return (0); +}
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