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Diffstat (limited to 'REORG.TODO/nptl/tst-mutex5.c')
| -rw-r--r-- | REORG.TODO/nptl/tst-mutex5.c | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/REORG.TODO/nptl/tst-mutex5.c b/REORG.TODO/nptl/tst-mutex5.c new file mode 100644 index 0000000000..3aedf274b9 --- /dev/null +++ b/REORG.TODO/nptl/tst-mutex5.c @@ -0,0 +1,203 @@ +/* Copyright (C) 2002-2017 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 + <http://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> + + +#ifndef TYPE +# define TYPE PTHREAD_MUTEX_NORMAL +#endif + + +static int +do_test (void) +{ + pthread_mutex_t m; + struct timespec ts; + struct timeval tv; + struct timeval tv2; + int err; + pthread_mutexattr_t a; + + if (pthread_mutexattr_init (&a) != 0) + { + puts ("mutexattr_init failed"); + return 1; + } + + if (pthread_mutexattr_settype (&a, TYPE) != 0) + { + puts ("mutexattr_settype failed"); + return 1; + } + +#ifdef ENABLE_PI + if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0) + { + puts ("pthread_mutexattr_setprotocol failed"); + return 1; + } +#endif + + err = pthread_mutex_init (&m, &a); + if (err != 0) + { +#ifdef ENABLE_PI + if (err == ENOTSUP) + { + puts ("PI mutexes unsupported"); + return 0; + } +#endif + puts ("mutex_init failed"); + return 1; + } + + if (pthread_mutexattr_destroy (&a) != 0) + { + puts ("mutexattr_destroy failed"); + return 1; + } + + if (pthread_mutex_lock (&m) != 0) + { + puts ("mutex_lock failed"); + return 1; + } + + if (pthread_mutex_trylock (&m) == 0) + { + puts ("mutex_trylock succeeded"); + return 1; + } + + gettimeofday (&tv, NULL); + TIMEVAL_TO_TIMESPEC (&tv, &ts); + + ts.tv_sec += 2; /* Wait 2 seconds. */ + + err = pthread_mutex_timedlock (&m, &ts); + if (err == 0) + { + puts ("timedlock succeeded"); + return 1; + } + else if (err != ETIMEDOUT) + { + printf ("timedlock error != ETIMEDOUT: %d\n", err); + return 1; + } + else + { + int clk_tck = sysconf (_SC_CLK_TCK); + + gettimeofday (&tv2, NULL); + + tv2.tv_sec -= tv.tv_sec; + tv2.tv_usec -= tv.tv_usec; + if (tv2.tv_usec < 0) + { + tv2.tv_usec += 1000000; + tv2.tv_sec -= 1; + } + + /* Be a bit tolerant, add one CLK_TCK. */ + tv2.tv_usec += 1000000 / clk_tck; + if (tv2.tv_usec >= 1000000) + { + tv2.tv_usec -= 1000000; + ++tv2.tv_sec; + } + + if (tv2.tv_sec < 2) + { + printf ("premature timeout: %jd.%06jd difference\n", + (intmax_t) tv2.tv_sec, (intmax_t) tv2.tv_usec); + return 1; + } + } + + (void) gettimeofday (&tv, NULL); + TIMEVAL_TO_TIMESPEC (&tv, &ts); + + ts.tv_sec += 2; /* Wait 2 seconds. */ + /* The following makes the ts value invalid. */ + ts.tv_nsec += 1000000000; + + err = pthread_mutex_timedlock (&m, &ts); + if (err == 0) + { + puts ("2nd timedlock succeeded"); + return 1; + } + else if (err != EINVAL) + { + printf ("2nd timedlock error != EINVAL: %d\n", err); + return 1; + } + + if (pthread_mutex_unlock (&m) != 0) + { + puts ("mutex_unlock failed"); + return 1; + } + + (void) gettimeofday (&tv, NULL); + TIMEVAL_TO_TIMESPEC (&tv, &ts); + + ts.tv_sec += 2; /* Wait 2 seconds. */ + if (pthread_mutex_timedlock (&m, &ts) != 0) + { + puts ("3rd timedlock failed"); + } + + (void) gettimeofday (&tv2, NULL); + + /* Check that timedlock didn't delay. We use a limit of 0.1 secs. */ + timersub (&tv2, &tv, &tv2); + if (tv2.tv_sec > 0 || tv2.tv_usec > 100000) + { + puts ("3rd timedlock didn't return right away"); + return 1; + } + + if (pthread_mutex_unlock (&m) != 0) + { + puts ("final mutex_unlock failed"); + return 1; + } + + if (pthread_mutex_destroy (&m) != 0) + { + puts ("mutex_destroy failed"); + return 1; + } + + return 0; +} + +#define TIMEOUT 4 +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |