1/*	$NetBSD: t_mqueue.c,v 1.4 2014/03/02 19:56:48 jmmv Exp $ */
2
3/*
4 * Test for POSIX message queue priority handling.
5 *
6 * This file is in the Public Domain.
7 */
8
9#include <atf-c.h>
10
11#include <stdio.h>
12#include <stdlib.h>
13#include <string.h>
14#include <errno.h>
15#include <unistd.h>
16
17#include <mqueue.h>
18
19#define	MQ_PRIO_BASE	24
20
21static void
22send_msgs(mqd_t mqfd)
23{
24	char msg[2];
25
26	msg[1] = '\0';
27
28	msg[0] = 'a';
29	ATF_REQUIRE_MSG(mq_send(mqfd, msg, sizeof(msg), MQ_PRIO_BASE) != -1,
30	    "mq_send 1 failed: %d", errno);
31
32	msg[0] = 'b';
33	ATF_REQUIRE_MSG(mq_send(mqfd, msg, sizeof(msg), MQ_PRIO_BASE + 1) != -1,
34	    "mq_send 2 failed: %d", errno);
35
36	msg[0] = 'c';
37	ATF_REQUIRE_MSG(mq_send(mqfd, msg, sizeof(msg), MQ_PRIO_BASE) != -1,
38	    "mq_send 3 failed: %d", errno);
39
40	msg[0] = 'd';
41	ATF_REQUIRE_MSG(mq_send(mqfd, msg, sizeof(msg), MQ_PRIO_BASE - 1) != -1,
42	    "mq_send 4 failed: %d", errno);
43
44	msg[0] = 'e';
45	ATF_REQUIRE_MSG(mq_send(mqfd, msg, sizeof(msg), 0) != -1,
46	    "mq_send 5 failed: %d", errno);
47
48	msg[0] = 'f';
49	ATF_REQUIRE_MSG(mq_send(mqfd, msg, sizeof(msg), MQ_PRIO_BASE + 1) != -1,
50	    "mq_send 6 failed: %d", errno);
51}
52
53static void
54receive_msgs(mqd_t mqfd)
55{
56	struct mq_attr mqa;
57	char *m;
58	unsigned p;
59	int len;
60
61	ATF_REQUIRE_MSG(mq_getattr(mqfd, &mqa) != -1, "mq_getattr failed %d",
62	    errno);
63
64	len = mqa.mq_msgsize;
65	m = calloc(1, len);
66	ATF_REQUIRE_MSG(m != NULL, "calloc failed");
67
68	ATF_REQUIRE_MSG(mq_receive(mqfd, m, len, &p) != -1,
69	    "mq_receive 1 failed: %d", errno);
70	ATF_REQUIRE_MSG(p == (MQ_PRIO_BASE + 1) && m[0] == 'b',
71	    "mq_receive 1 prio/data mismatch");
72
73	ATF_REQUIRE_MSG(mq_receive(mqfd, m, len, &p) != -1,
74	    "mq_receive 2 failed: %d", errno);
75	ATF_REQUIRE_MSG(p == (MQ_PRIO_BASE + 1) && m[0] == 'f',
76	    "mq_receive 2 prio/data mismatch");
77
78	ATF_REQUIRE_MSG(mq_receive(mqfd, m, len, &p) != -1,
79	    "mq_receive 3 failed: %d", errno);
80	ATF_REQUIRE_MSG(p == MQ_PRIO_BASE && m[0] == 'a',
81	    "mq_receive 3 prio/data mismatch");
82
83	ATF_REQUIRE_MSG(mq_receive(mqfd, m, len, &p) != -1,
84	    "mq_receive 4 failed: %d", errno);
85	ATF_REQUIRE_MSG(p == MQ_PRIO_BASE && m[0] == 'c',
86	    "mq_receive 4 prio/data mismatch");
87
88	ATF_REQUIRE_MSG(mq_receive(mqfd, m, len, &p) != -1,
89	    "mq_receive 5 failed: %d", errno);
90	ATF_REQUIRE_MSG(p == (MQ_PRIO_BASE - 1) && m[0] == 'd',
91	    "mq_receive 5 prio/data mismatch");
92
93	ATF_REQUIRE_MSG(mq_receive(mqfd, m, len, &p) != -1,
94	    "mq_receive 6 failed: %d", errno);
95	ATF_REQUIRE_MSG(p == 0 && m[0] == 'e',
96	    "mq_receive 6 prio/data mismatch");
97}
98
99ATF_TC(mqueue);
100ATF_TC_HEAD(mqueue, tc)
101{
102
103	atf_tc_set_md_var(tc, "timeout", "3");
104	atf_tc_set_md_var(tc, "descr", "Checks mqueue send/receive");
105}
106
107ATF_TC_BODY(mqueue, tc)
108{
109	int status;
110	char *tmpdir;
111	char template[32];
112	char mq_name[64];
113
114	strlcpy(template, "./t_mqueue.XXXXXX", sizeof(template));
115	tmpdir = mkdtemp(template);
116	ATF_REQUIRE_MSG(tmpdir != NULL, "mkdtemp failed: %d", errno);
117	snprintf(mq_name, sizeof(mq_name), "%s/mq", tmpdir);
118
119	mqd_t mqfd;
120
121	mqfd = mq_open(mq_name, O_RDWR | O_CREAT,
122	    S_IRUSR | S_IRWXG | S_IROTH, NULL);
123	ATF_REQUIRE_MSG(mqfd != -1, "mq_open failed: %d", errno);
124
125	send_msgs(mqfd);
126	receive_msgs(mqfd);
127
128	status = mq_close(mqfd);
129	ATF_REQUIRE_MSG(status == 0, "mq_close failed: %d", errno);
130}
131
132ATF_TP_ADD_TCS(tp)
133{
134	ATF_TP_ADD_TC(tp, mqueue);
135
136	return atf_no_error();
137}
138