1 | /* Copyright (C) 2002-2024 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <errno.h> |
19 | #include <pthread.h> |
20 | #include <stdio.h> |
21 | #include <time.h> |
22 | #include <unistd.h> |
23 | #include <sys/time.h> |
24 | #include <stdint.h> |
25 | #include <config.h> |
26 | #include <support/check.h> |
27 | #include <support/timespec.h> |
28 | #include <support/xthread.h> |
29 | |
30 | #ifdef ENABLE_PP |
31 | #include "tst-tpp.h" |
32 | #endif |
33 | |
34 | #ifndef TYPE |
35 | # define TYPE PTHREAD_MUTEX_NORMAL |
36 | #endif |
37 | |
38 | /* A bogus clock value that tells run_test to use |
39 | pthread_mutex_timedlock rather than pthread_mutex_clocklock. */ |
40 | #define CLOCK_USE_TIMEDLOCK (-1) |
41 | |
42 | static int |
43 | do_test_clock (clockid_t clockid, const char *fnname, int tmo_result) |
44 | { |
45 | pthread_mutex_t m; |
46 | pthread_mutexattr_t a; |
47 | const clockid_t clockid_for_get = |
48 | (clockid == CLOCK_USE_TIMEDLOCK) ? CLOCK_REALTIME : clockid; |
49 | |
50 | TEST_COMPARE (pthread_mutexattr_init (&a), 0); |
51 | TEST_COMPARE (pthread_mutexattr_settype (&a, TYPE), 0); |
52 | |
53 | #if defined ENABLE_PI |
54 | TEST_COMPARE (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT), 0); |
55 | #elif defined ENABLE_PP |
56 | TEST_COMPARE (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_PROTECT), 0); |
57 | TEST_COMPARE (pthread_mutexattr_setprioceiling (&a, 6), 0); |
58 | #endif |
59 | |
60 | int err = pthread_mutex_init (mutex: &m, mutexattr: &a); |
61 | if (err != 0) |
62 | { |
63 | #ifdef ENABLE_PI |
64 | if (err == ENOTSUP) |
65 | FAIL_UNSUPPORTED ("PI mutexes unsupported" ); |
66 | #endif |
67 | FAIL_EXIT1 ("mutex_init failed" ); |
68 | } |
69 | |
70 | TEST_COMPARE (pthread_mutexattr_destroy (&a), 0); |
71 | TEST_COMPARE (pthread_mutex_lock (&m), 0); |
72 | if (pthread_mutex_trylock (mutex: &m) == 0) |
73 | FAIL_EXIT1 ("mutex_trylock succeeded" ); |
74 | |
75 | /* Wait 2 seconds. */ |
76 | struct timespec ts_timeout = timespec_add (xclock_now (clock: clockid_for_get), |
77 | make_timespec (s: 2, ns: 0)); |
78 | |
79 | if (clockid == CLOCK_USE_TIMEDLOCK) |
80 | TEST_COMPARE (pthread_mutex_timedlock (&m, &ts_timeout), tmo_result); |
81 | else |
82 | TEST_COMPARE (pthread_mutex_clocklock (&m, clockid, &ts_timeout), |
83 | tmo_result); |
84 | if (tmo_result == ETIMEDOUT) |
85 | TEST_TIMESPEC_BEFORE_NOW (ts_timeout, clockid_for_get); |
86 | |
87 | /* The following makes the ts value invalid. */ |
88 | ts_timeout.tv_nsec += 1000000000; |
89 | |
90 | if (clockid == CLOCK_USE_TIMEDLOCK) |
91 | TEST_COMPARE (pthread_mutex_timedlock (&m, &ts_timeout), EINVAL); |
92 | else |
93 | TEST_COMPARE (pthread_mutex_clocklock (&m, clockid, &ts_timeout), EINVAL); |
94 | TEST_COMPARE (pthread_mutex_unlock (&m), 0); |
95 | |
96 | const struct timespec ts_start = xclock_now (CLOCK_REALTIME); |
97 | |
98 | /* Wait 2 seconds. */ |
99 | ts_timeout = timespec_add (ts_start, make_timespec (s: 2, ns: 0)); |
100 | |
101 | if (clockid == CLOCK_USE_TIMEDLOCK) |
102 | TEST_COMPARE (pthread_mutex_timedlock (&m, &ts_timeout), 0); |
103 | else |
104 | TEST_COMPARE (pthread_mutex_clocklock (&m, clockid, &ts_timeout), 0); |
105 | |
106 | const struct timespec ts_end = xclock_now (clock: clockid_for_get); |
107 | |
108 | /* Check that timedlock didn't delay. We use a limit of 0.1 secs. */ |
109 | TEST_TIMESPEC_BEFORE (ts_end, |
110 | timespec_add (ts_start, make_timespec (0, 100000000))); |
111 | |
112 | TEST_COMPARE (pthread_mutex_unlock (&m), 0); |
113 | TEST_COMPARE (pthread_mutex_destroy (&m), 0); |
114 | |
115 | return 0; |
116 | } |
117 | |
118 | static int do_test (void) |
119 | { |
120 | #ifdef ENABLE_PP |
121 | init_tpp_test (); |
122 | #endif |
123 | |
124 | int monotonic_result = |
125 | #ifdef ENABLE_PI |
126 | support_mutex_pi_monotonic () ? ETIMEDOUT : EINVAL; |
127 | #else |
128 | ETIMEDOUT; |
129 | #endif |
130 | |
131 | do_test_clock (CLOCK_USE_TIMEDLOCK, fnname: "timedlock" , ETIMEDOUT); |
132 | do_test_clock (CLOCK_REALTIME, fnname: "clocklock(realtime)" , ETIMEDOUT); |
133 | do_test_clock (CLOCK_MONOTONIC, fnname: "clocklock(monotonic)" , tmo_result: monotonic_result); |
134 | return 0; |
135 | } |
136 | |
137 | #include <support/test-driver.c> |
138 | |