File: loop_test.c

package info (click to toggle)
bind9 1%3A9.21.18-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 39,888 kB
  • sloc: ansic: 297,806; sh: 42,003; python: 27,121; perl: 2,833; makefile: 86
file content (139 lines) | stat: -rw-r--r-- 3,221 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
/*
 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
 *
 * SPDX-License-Identifier: MPL-2.0
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, you can obtain one at https://mozilla.org/MPL/2.0/.
 *
 * See the COPYRIGHT file distributed with this work for additional
 * information regarding copyright ownership.
 */

#include <inttypes.h>
#include <sched.h> /* IWYU pragma: keep */
#include <setjmp.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>

#include "isc/attributes.h"

#define UNIT_TESTING
#include <cmocka.h>

#include <isc/atomic.h>
#include <isc/lib.h>
#include <isc/loop.h>
#include <isc/os.h>
#include <isc/result.h>
#include <isc/util.h>

/*
 * Prevent the odr-violation by renaming isc__loopmgr when including loop.c for
 * the second time.
 */
#define isc__loopmgr isc___loopmgr
#include "loop.c"

#include <tests/isc.h>

static atomic_uint scheduled = 0;

static void
count(void *arg ISC_ATTR_UNUSED) {
	atomic_fetch_add(&scheduled, 1);
}

static void
shutdown_loopmgr(void *arg ISC_ATTR_UNUSED) {
	while (atomic_load(&scheduled) != isc_loopmgr_nloops()) {
		isc_thread_yield();
	}

	isc_loopmgr_shutdown();
}

ISC_RUN_TEST_IMPL(isc_loopmgr) {
	atomic_store(&scheduled, 0);

	isc_loopmgr_setup(count, NULL);
	isc_loop_setup(isc_loop_main(), shutdown_loopmgr, NULL);

	isc_loopmgr_run();

	assert_int_equal(atomic_load(&scheduled), isc_loopmgr_nloops());
}

static void
runjob(void *arg ISC_ATTR_UNUSED) {
	isc_async_current(count, NULL);
	if (isc_tid() == 0) {
		isc_async_current(shutdown_loopmgr, NULL);
	}
}

ISC_RUN_TEST_IMPL(isc_loopmgr_runjob) {
	atomic_store(&scheduled, 0);

	isc_loopmgr_setup(runjob, NULL);
	isc_loopmgr_run();
	assert_int_equal(atomic_load(&scheduled), isc_loopmgr_nloops());
}

static void
pause_loopmgr(void *arg ISC_ATTR_UNUSED) {
	isc_loopmgr_pause();

	assert_true(isc_loopmgr_paused());

	for (size_t i = 0; i < isc_loopmgr_nloops(); i++) {
		isc_loop_t *loop = isc_loop_get(i);

		assert_true(loop->paused);
	}

	atomic_init(&scheduled, isc_loopmgr_nloops());

	isc_loopmgr_resume();
}

ISC_RUN_TEST_IMPL(isc_loopmgr_pause) {
	isc_loop_setup(isc_loop_main(), pause_loopmgr, NULL);
	isc_loop_setup(isc_loop_main(), shutdown_loopmgr, NULL);
	isc_loopmgr_run();
}

static void
send_sigint(void *arg ISC_ATTR_UNUSED) {
	kill(getpid(), SIGINT);
}

ISC_RUN_TEST_IMPL(isc_loopmgr_sigint) {
	isc_loop_setup(isc_loop_main(), send_sigint, NULL);
	isc_loopmgr_run();
}

static void
send_sigterm(void *arg ISC_ATTR_UNUSED) {
	kill(getpid(), SIGINT);
}

ISC_RUN_TEST_IMPL(isc_loopmgr_sigterm) {
	isc_loop_setup(isc_loop_main(), send_sigterm, NULL);
	isc_loopmgr_run();
}

ISC_TEST_LIST_START
ISC_TEST_ENTRY_CUSTOM(isc_loopmgr, setup_loopmgr, teardown_loopmgr)
ISC_TEST_ENTRY_CUSTOM(isc_loopmgr_pause, setup_loopmgr, teardown_loopmgr)
ISC_TEST_ENTRY_CUSTOM(isc_loopmgr_runjob, setup_loopmgr, teardown_loopmgr)
ISC_TEST_ENTRY_CUSTOM(isc_loopmgr_sigint, setup_loopmgr, teardown_loopmgr)
ISC_TEST_ENTRY_CUSTOM(isc_loopmgr_sigterm, setup_loopmgr, teardown_loopmgr)
ISC_TEST_LIST_END

ISC_TEST_MAIN