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d614a753 | 1 | /* Copyright (C) 2002-2020 Free Software Foundation, Inc. |
76a50749 UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
76a50749 UD |
18 | |
19 | #include <errno.h> | |
20 | #include <pthread.h> | |
21 | #include <stdlib.h> | |
22 | #include <stdio.h> | |
23 | #include <string.h> | |
24 | #include <sys/time.h> | |
495514ee | 25 | #include <support/check.h> |
e996fa72 | 26 | #include <support/test-driver.h> |
495514ee MC |
27 | #include <support/timespec.h> |
28 | #include <support/xthread.h> | |
29 | #include <support/xtime.h> | |
76a50749 UD |
30 | |
31 | ||
e996fa72 MC |
32 | /* A bogus clock value that tells run_test to use pthread_rwlock_timedrdlock |
33 | and pthread_rwlock_timedwrlock rather than pthread_rwlock_clockrdlock and | |
34 | pthread_rwlock_clockwrlock. */ | |
35 | #define CLOCK_USE_TIMEDLOCK (-1) | |
36 | ||
76a50749 UD |
37 | static int kind[] = |
38 | { | |
39 | PTHREAD_RWLOCK_PREFER_READER_NP, | |
40 | PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, | |
41 | PTHREAD_RWLOCK_PREFER_WRITER_NP, | |
42 | }; | |
43 | ||
e996fa72 MC |
44 | struct thread_args |
45 | { | |
46 | pthread_rwlock_t *rwlock; | |
47 | clockid_t clockid; | |
48 | const char *fnname; | |
49 | }; | |
76a50749 UD |
50 | |
51 | static void * | |
52 | tf (void *arg) | |
53 | { | |
e996fa72 MC |
54 | struct thread_args *args = arg; |
55 | pthread_rwlock_t *r = args->rwlock; | |
56 | const clockid_t clockid = args->clockid; | |
57 | const clockid_t clockid_for_get = | |
58 | (clockid == CLOCK_USE_TIMEDLOCK) ? CLOCK_REALTIME : clockid; | |
59 | const char *fnname = args->fnname; | |
76a50749 UD |
60 | |
61 | /* Timeout: 0.3 secs. */ | |
495514ee | 62 | struct timespec ts_start; |
e996fa72 | 63 | xclock_gettime (clockid_for_get, &ts_start); |
76a50749 | 64 | |
495514ee MC |
65 | struct timespec ts_timeout = timespec_add (ts_start, |
66 | make_timespec (0, 300000000)); | |
76a50749 | 67 | |
e996fa72 | 68 | verbose_printf ("child calling %srdlock\n", fnname); |
51d0678c | 69 | |
e996fa72 MC |
70 | if (clockid == CLOCK_USE_TIMEDLOCK) |
71 | TEST_COMPARE (pthread_rwlock_timedrdlock (r, &ts_timeout), ETIMEDOUT); | |
72 | else | |
73 | TEST_COMPARE (pthread_rwlock_clockrdlock (r, clockid, &ts_timeout), | |
74 | ETIMEDOUT); | |
76a50749 | 75 | |
e996fa72 | 76 | verbose_printf ("1st child %srdlock done\n", fnname); |
51d0678c | 77 | |
495514ee | 78 | TEST_TIMESPEC_NOW_OR_AFTER (CLOCK_REALTIME, ts_timeout); |
76a50749 | 79 | |
e996fa72 | 80 | xclock_gettime (clockid_for_get, &ts_timeout); |
495514ee | 81 | ts_timeout.tv_sec += 10; |
0a37669a | 82 | /* Note that the following operation makes ts invalid. */ |
495514ee | 83 | ts_timeout.tv_nsec += 1000000000; |
0a37669a | 84 | |
e996fa72 MC |
85 | if (clockid == CLOCK_USE_TIMEDLOCK) |
86 | TEST_COMPARE (pthread_rwlock_timedrdlock (r, &ts_timeout), EINVAL); | |
87 | else | |
88 | TEST_COMPARE (pthread_rwlock_clockrdlock (r, clockid, &ts_timeout), EINVAL); | |
0a37669a | 89 | |
e996fa72 | 90 | verbose_printf ("2nd child %srdlock done\n", fnname); |
51d0678c | 91 | |
76a50749 UD |
92 | return NULL; |
93 | } | |
94 | ||
95 | ||
96 | static int | |
e996fa72 | 97 | do_test_clock (clockid_t clockid, const char *fnname) |
76a50749 | 98 | { |
e996fa72 MC |
99 | const clockid_t clockid_for_get = |
100 | (clockid == CLOCK_USE_TIMEDLOCK) ? CLOCK_REALTIME : clockid; | |
f9657e88 | 101 | size_t cnt; |
76a50749 UD |
102 | for (cnt = 0; cnt < sizeof (kind) / sizeof (kind[0]); ++cnt) |
103 | { | |
104 | pthread_rwlock_t r; | |
105 | pthread_rwlockattr_t a; | |
106 | ||
107 | if (pthread_rwlockattr_init (&a) != 0) | |
495514ee | 108 | FAIL_EXIT1 ("round %Zu: rwlockattr_t failed\n", cnt); |
76a50749 UD |
109 | |
110 | if (pthread_rwlockattr_setkind_np (&a, kind[cnt]) != 0) | |
495514ee | 111 | FAIL_EXIT1 ("round %Zu: rwlockattr_setkind failed\n", cnt); |
76a50749 UD |
112 | |
113 | if (pthread_rwlock_init (&r, &a) != 0) | |
495514ee | 114 | FAIL_EXIT1 ("round %Zu: rwlock_init failed\n", cnt); |
76a50749 UD |
115 | |
116 | if (pthread_rwlockattr_destroy (&a) != 0) | |
495514ee | 117 | FAIL_EXIT1 ("round %Zu: rwlockattr_destroy failed\n", cnt); |
76a50749 UD |
118 | |
119 | struct timespec ts; | |
e996fa72 | 120 | xclock_gettime (clockid_for_get, &ts); |
76a50749 UD |
121 | ++ts.tv_sec; |
122 | ||
123 | /* Get a write lock. */ | |
e996fa72 MC |
124 | int e = (clockid == CLOCK_USE_TIMEDLOCK) |
125 | ? pthread_rwlock_timedwrlock (&r, &ts) | |
126 | : pthread_rwlock_clockwrlock (&r, clockid, &ts); | |
51d0678c | 127 | if (e != 0) |
e996fa72 MC |
128 | FAIL_EXIT1 ("round %Zu: %swrlock failed (%d)\n", |
129 | cnt, fnname, e); | |
76a50749 | 130 | |
e996fa72 | 131 | verbose_printf ("1st %swrlock done\n", fnname); |
51d0678c | 132 | |
e996fa72 | 133 | xclock_gettime (clockid_for_get, &ts); |
0a37669a | 134 | ++ts.tv_sec; |
e996fa72 MC |
135 | if (clockid == CLOCK_USE_TIMEDLOCK) |
136 | TEST_COMPARE (pthread_rwlock_timedrdlock (&r, &ts), EDEADLK); | |
137 | else | |
138 | TEST_COMPARE (pthread_rwlock_clockrdlock (&r, clockid, &ts), EDEADLK); | |
0a37669a | 139 | |
e996fa72 | 140 | verbose_printf ("1st %srdlock done\n", fnname); |
51d0678c | 141 | |
e996fa72 | 142 | xclock_gettime (clockid_for_get, &ts); |
0a37669a | 143 | ++ts.tv_sec; |
e996fa72 MC |
144 | if (clockid == CLOCK_USE_TIMEDLOCK) |
145 | TEST_COMPARE (pthread_rwlock_timedwrlock (&r, &ts), EDEADLK); | |
146 | else | |
147 | TEST_COMPARE (pthread_rwlock_clockwrlock (&r, clockid, &ts), EDEADLK); | |
0a37669a | 148 | |
e996fa72 | 149 | verbose_printf ("2nd %swrlock done\n", fnname); |
51d0678c | 150 | |
e996fa72 MC |
151 | struct thread_args args; |
152 | args.rwlock = &r; | |
153 | args.clockid = clockid; | |
154 | args.fnname = fnname; | |
155 | pthread_t th = xpthread_create (NULL, tf, &args); | |
76a50749 | 156 | |
51d0678c UD |
157 | puts ("started thread"); |
158 | ||
e996fa72 | 159 | (void) xpthread_join (th); |
76a50749 | 160 | |
51d0678c UD |
161 | puts ("joined thread"); |
162 | ||
76a50749 | 163 | if (pthread_rwlock_destroy (&r) != 0) |
495514ee | 164 | FAIL_EXIT1 ("round %Zu: rwlock_destroy failed\n", cnt); |
76a50749 UD |
165 | } |
166 | ||
167 | return 0; | |
168 | } | |
169 | ||
e996fa72 MC |
170 | static int do_test (void) |
171 | { | |
172 | do_test_clock (CLOCK_USE_TIMEDLOCK, "timed"); | |
173 | do_test_clock (CLOCK_REALTIME, "clock(realtime)"); | |
174 | do_test_clock (CLOCK_MONOTONIC, "clock(monotonic)"); | |
175 | return 0; | |
176 | } | |
177 | ||
495514ee | 178 | #include <support/test-driver.c> |