103 lines
3 KiB
C
103 lines
3 KiB
C
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/* $NetBSD: t_fifo.c,v 1.3 2010/11/07 17:51:20 jmmv Exp $ */
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/*-
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* Copyright (c) 2002, 2008 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Luke Mewburn and Jaromir Dolecek.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__COPYRIGHT("@(#) Copyright (c) 2008\
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The NetBSD Foundation, inc. All rights reserved.");
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__RCSID("$NetBSD: t_fifo.c,v 1.3 2010/11/07 17:51:20 jmmv Exp $");
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#include <sys/event.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <fcntl.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 <atf-c.h>
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#include "../../../h_macros.h"
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#define FIFONAME "fifo"
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ATF_TC(fifo);
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ATF_TC_HEAD(fifo, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Checks EVFILT_WRITE for fifo");
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}
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ATF_TC_BODY(fifo, tc)
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{
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char buffer[128];
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struct kevent event[1];
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pid_t child;
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int kq, n, fd, status;
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RL(mkfifo(FIFONAME, 0644));
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RL(fd = open(FIFONAME, O_RDWR, 0644));
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RL(kq = kqueue());
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/* spawn child reader */
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RL(child = fork());
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if (child == 0) {
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int sz = read(fd, buffer, 128);
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if (sz > 0)
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(void)printf("fifo: child read '%.*s'\n", sz, buffer);
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_exit(sz <= 0);
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}
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EV_SET(&event[0], fd, EVFILT_WRITE, EV_ADD|EV_ENABLE, 0, 0, 0);
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RL(kevent(kq, event, 1, NULL, 0, NULL));
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(void)memset(event, 0, sizeof(event));
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RL(n = kevent(kq, NULL, 0, event, 1, NULL));
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(void)printf("kevent num %d filt %d flags: %#x, fflags: %#x, "
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"data: %" PRId64 "\n", n, event[0].filter, event[0].flags,
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event[0].fflags, event[0].data);
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ATF_REQUIRE_EQ(event[0].filter, EVFILT_WRITE);
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RL(write(fd, "foo", 3));
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(void)printf("fifo: wrote 'foo'\n");
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RL(close(fd));
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(void)waitpid(child, &status, 0);
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, fifo);
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return atf_no_error();
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}
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