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Diffstat (limited to 'sysdeps/pthread/tst-mutex5.c')
| -rw-r--r-- | sysdeps/pthread/tst-mutex5.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/sysdeps/pthread/tst-mutex5.c b/sysdeps/pthread/tst-mutex5.c new file mode 100644 index 0000000000..14490768c3 --- /dev/null +++ b/sysdeps/pthread/tst-mutex5.c @@ -0,0 +1,119 @@ +/* Copyright (C) 2002-2020 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> |