1 /* $NetBSD: t_pipe.c,v 1.2 2017/01/13 21:30:41 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2002, 2008 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Luke Mewburn and Jaromir Dolecek.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __COPYRIGHT("@(#) Copyright (c) 2008\
34 The NetBSD Foundation, inc. All rights reserved.");
35 __RCSID("$NetBSD: t_pipe.c,v 1.2 2017/01/13 21:30:41 christos Exp $");
36
37 #include <sys/event.h>
38
39 #include <stdio.h>
40 #include <unistd.h>
41
42 #include <atf-c.h>
43
44 #include "h_macros.h"
45
46 ATF_TC(pipe);
ATF_TC_HEAD(pipe,tc)47 ATF_TC_HEAD(pipe, tc)
48 {
49 atf_tc_set_md_var(tc, "descr", "Checks EVFILT_READ for pipes");
50 }
ATF_TC_BODY(pipe,tc)51 ATF_TC_BODY(pipe, tc)
52 {
53 struct kevent event[1];
54 char buffer[128];
55 int fds[2];
56 int kq, n;
57
58 RL(pipe(fds));
59 RL(kq = kqueue());
60
61 EV_SET(&event[0], fds[0], EVFILT_READ, EV_ADD|EV_ENABLE, 0, 0, 0);
62 RL(kevent(kq, event, 1, NULL, 0, NULL));
63
64 /* make sure there is something in the pipe */
65 RL(write(fds[1], "foo", 3));
66 (void)printf("pipe: wrote 'foo' to pipe\n");
67
68 RL(n = kevent(kq, NULL, 0, event, 1, NULL));
69 (void)printf("kevent num %d flags: %#x, fflags: %#x, data: "
70 #ifdef __FreeBSD__
71 "%" PRIdPTR "\n", n, event[0].flags, event[0].fflags, event[0].data);
72 #else
73 "%" PRId64 "\n", n, event[0].flags, event[0].fflags, event[0].data);
74 #endif
75
76 RL(n = read(fds[0], buffer, event[0].data));
77 buffer[n] = '\0';
78
79 (void)printf("pipe: read '%s'\n", buffer);
80 (void)printf("pipe: successful end\n");
81 }
82
ATF_TP_ADD_TCS(tp)83 ATF_TP_ADD_TCS(tp)
84 {
85 ATF_TP_ADD_TC(tp, pipe);
86
87 return atf_no_error();
88 }
89