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/* $NetBSD: t_fifo.c,v 1.3 2010/11/07 17:51:20 jmmv Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Luke Mewburn and Jaromir Dolecek.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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>
__COPYRIGHT("@(#) Copyright (c) 2008\
The NetBSD Foundation, inc. All rights reserved.");
__RCSID("$NetBSD: t_fifo.c,v 1.3 2010/11/07 17:51:20 jmmv Exp $");
#include <sys/event.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <inttypes.h>
#include <atf-c.h>
#include "../../../h_macros.h"
#define FIFONAME "fifo"
ATF_TC(fifo);
ATF_TC_HEAD(fifo, tc)
{
atf_tc_set_md_var(tc, "descr", "Checks EVFILT_READ on fifo");
}
ATF_TC_BODY(fifo, tc)
{
int kq, n, fd;
struct kevent event[1];
char buffer[128];
RL(mkfifo(FIFONAME, 0644));
RL(fd = open(FIFONAME, O_RDWR, 0644));
RL(kq = kqueue());
EV_SET(&event[0], fd, EVFILT_READ, EV_ADD|EV_ENABLE, 0, 0, 0);
RL(kevent(kq, event, 1, NULL, 0, NULL));
/* make sure there is something in the fifo */
RL(write(fd, "foo", 3));
(void)printf("fifo: wrote 'foo'\n");
(void)memset(event, 0, sizeof(event));
RL(n = kevent(kq, NULL, 0, event, 1, NULL));
(void)printf("kevent num %d filt %d flags: %#x, fflags: %#x, "
#ifdef __FreeBSD__
"data: %" PRIdPTR "\n", n, event[0].filter, event[0].flags,
#else
"data: %" PRId64 "\n", n, event[0].filter, event[0].flags,
#endif
event[0].fflags, event[0].data);
ATF_REQUIRE_EQ(event[0].filter, EVFILT_READ);
RL(n = read(fd, buffer, event[0].data));
buffer[n] = '\0';
(void)printf("fifo: read '%s'\n", buffer);
RL(close(fd));
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, fifo);
return atf_no_error();
}
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