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
|
/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <pthread.h>
#include <stdio.h>
#include <time.h>
#include <unistd.h>
#include <sys/time.h>
#include <stdint.h>
#include <config.h>
#include <support/check.h>
#include <support/timespec.h>
#ifndef TYPE
# define TYPE PTHREAD_MUTEX_NORMAL
#endif
/* A bogus clock value that tells run_test to use
pthread_mutex_timedlock rather than pthread_mutex_clocklock. */
#define CLOCK_USE_TIMEDLOCK (-1)
static int
do_test_clock (clockid_t clockid, const char *fnname)
{
pthread_mutex_t m;
pthread_mutexattr_t a;
const clockid_t clockid_for_get =
(clockid == CLOCK_USE_TIMEDLOCK) ? CLOCK_REALTIME : clockid;
TEST_COMPARE (pthread_mutexattr_init (&a), 0);
TEST_COMPARE (pthread_mutexattr_settype (&a, TYPE), 0);
#ifdef ENABLE_PI
TEST_COMPARE (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT), 0);
#endif
int err = pthread_mutex_init (&m, &a);
if (err != 0)
{
#ifdef ENABLE_PI
if (err == ENOTSUP)
FAIL_UNSUPPORTED ("PI mutexes unsupported");
#endif
FAIL_EXIT1 ("mutex_init failed");
}
TEST_COMPARE (pthread_mutexattr_destroy (&a), 0);
TEST_COMPARE (pthread_mutex_lock (&m), 0);
if (pthread_mutex_trylock (&m) == 0)
FAIL_EXIT1 ("mutex_trylock succeeded");
/* Wait 2 seconds. */
struct timespec ts_timeout = timespec_add (xclock_now (clockid_for_get),
make_timespec (2, 0));
if (clockid == CLOCK_USE_TIMEDLOCK)
TEST_COMPARE (pthread_mutex_timedlock (&m, &ts_timeout), ETIMEDOUT);
else
TEST_COMPARE (pthread_mutex_clocklock (&m, clockid, &ts_timeout),
ETIMEDOUT);
TEST_TIMESPEC_BEFORE_NOW (ts_timeout, clockid_for_get);
/* The following makes the ts value invalid. */
ts_timeout.tv_nsec += 1000000000;
if (clockid == CLOCK_USE_TIMEDLOCK)
TEST_COMPARE (pthread_mutex_timedlock (&m, &ts_timeout), EINVAL);
else
TEST_COMPARE (pthread_mutex_clocklock (&m, clockid, &ts_timeout), EINVAL);
TEST_COMPARE (pthread_mutex_unlock (&m), 0);
const struct timespec ts_start = xclock_now (CLOCK_REALTIME);
/* Wait 2 seconds. */
ts_timeout = timespec_add (ts_start, make_timespec (2, 0));
if (clockid == CLOCK_USE_TIMEDLOCK)
TEST_COMPARE (pthread_mutex_timedlock (&m, &ts_timeout), 0);
else
TEST_COMPARE (pthread_mutex_clocklock (&m, clockid, &ts_timeout), 0);
const struct timespec ts_end = xclock_now (clockid_for_get);
/* Check that timedlock didn't delay. We use a limit of 0.1 secs. */
TEST_TIMESPEC_BEFORE (ts_end,
timespec_add (ts_start, make_timespec (0, 100000000)));
TEST_COMPARE (pthread_mutex_unlock (&m), 0);
TEST_COMPARE (pthread_mutex_destroy (&m), 0);
return 0;
}
static int do_test (void)
{
do_test_clock (CLOCK_USE_TIMEDLOCK, "timedlock");
do_test_clock (CLOCK_REALTIME, "clocklock(realtime)");
do_test_clock (CLOCK_MONOTONIC, "clocklock(monotonic)");
return 0;
}
#include <support/test-driver.c>
|
GitWeb