glibc/nptl/tst-cond25.c
Paul Eggert 5a82c74822 Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 02:43:31 -07:00

289 lines
6.8 KiB
C

/* Verify that condition variables synchronized by PI mutexes don't hang on
on cancellation.
Copyright (C) 2012-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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 <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/syscall.h>
#include <unistd.h>
#include <sys/time.h>
#include <time.h>
#define NUM 5
#define ITERS 10000
#define COUNT 100
typedef void *(*thr_func) (void *);
pthread_mutex_t mutex;
pthread_cond_t cond;
void cleanup (void *u)
{
/* pthread_cond_wait should always return with the mutex locked. The
pthread_mutex_unlock implementation does not actually check whether we
own the mutex for several mutex kinds, so check this explicitly. */
int ret = pthread_mutex_trylock (&mutex);
if (ret != EDEADLK && ret != EBUSY)
{
printf ("mutex not locked in cleanup %d\n", ret);
abort ();
}
if (pthread_mutex_unlock (&mutex))
abort ();
}
void *
signaller (void *u)
{
int i, ret = 0;
void *tret = NULL;
for (i = 0; i < ITERS; i++)
{
if ((ret = pthread_mutex_lock (&mutex)) != 0)
{
tret = (void *)1;
printf ("signaller:mutex_lock failed: %s\n", strerror (ret));
goto out;
}
if ((ret = pthread_cond_signal (&cond)) != 0)
{
tret = (void *)1;
printf ("signaller:signal failed: %s\n", strerror (ret));
goto unlock_out;
}
if ((ret = pthread_mutex_unlock (&mutex)) != 0)
{
tret = (void *)1;
printf ("signaller:mutex_unlock failed: %s\n", strerror (ret));
goto out;
}
pthread_testcancel ();
}
out:
return tret;
unlock_out:
if ((ret = pthread_mutex_unlock (&mutex)) != 0)
printf ("signaller:mutex_unlock[2] failed: %s\n", strerror (ret));
goto out;
}
void *
waiter (void *u)
{
int i, ret = 0;
void *tret = NULL;
int seq = (uintptr_t) u;
for (i = 0; i < ITERS / NUM; i++)
{
if ((ret = pthread_mutex_lock (&mutex)) != 0)
{
tret = (void *) (uintptr_t) 1;
printf ("waiter[%u]:mutex_lock failed: %s\n", seq, strerror (ret));
goto out;
}
pthread_cleanup_push (cleanup, NULL);
if ((ret = pthread_cond_wait (&cond, &mutex)) != 0)
{
tret = (void *) (uintptr_t) 1;
printf ("waiter[%u]:wait failed: %s\n", seq, strerror (ret));
goto unlock_out;
}
if ((ret = pthread_mutex_unlock (&mutex)) != 0)
{
tret = (void *) (uintptr_t) 1;
printf ("waiter[%u]:mutex_unlock failed: %s\n", seq, strerror (ret));
goto out;
}
pthread_cleanup_pop (0);
}
out:
puts ("waiter tests done");
return tret;
unlock_out:
if ((ret = pthread_mutex_unlock (&mutex)) != 0)
printf ("waiter:mutex_unlock[2] failed: %s\n", strerror (ret));
goto out;
}
void *
timed_waiter (void *u)
{
int i, ret;
void *tret = NULL;
int seq = (uintptr_t) u;
for (i = 0; i < ITERS / NUM; i++)
{
struct timespec ts;
if ((ret = clock_gettime(CLOCK_REALTIME, &ts)) != 0)
{
tret = (void *) (uintptr_t) 1;
printf ("%u:clock_gettime failed: %s\n", seq, strerror (errno));
goto out;
}
ts.tv_sec += 20;
if ((ret = pthread_mutex_lock (&mutex)) != 0)
{
tret = (void *) (uintptr_t) 1;
printf ("waiter[%u]:mutex_lock failed: %s\n", seq, strerror (ret));
goto out;
}
pthread_cleanup_push (cleanup, NULL);
/* We should not time out either. */
if ((ret = pthread_cond_timedwait (&cond, &mutex, &ts)) != 0)
{
tret = (void *) (uintptr_t) 1;
printf ("waiter[%u]:timedwait failed: %s\n", seq, strerror (ret));
goto unlock_out;
}
if ((ret = pthread_mutex_unlock (&mutex)) != 0)
{
tret = (void *) (uintptr_t) 1;
printf ("waiter[%u]:mutex_unlock failed: %s\n", seq, strerror (ret));
goto out;
}
pthread_cleanup_pop (0);
}
out:
puts ("timed_waiter tests done");
return tret;
unlock_out:
if ((ret = pthread_mutex_unlock (&mutex)) != 0)
printf ("waiter[%u]:mutex_unlock[2] failed: %s\n", seq, strerror (ret));
goto out;
}
int
do_test_wait (thr_func f)
{
pthread_t w[NUM];
pthread_t s;
pthread_mutexattr_t attr;
int i, j, ret = 0;
void *thr_ret;
for (i = 0; i < COUNT; i++)
{
if ((ret = pthread_mutexattr_init (&attr)) != 0)
{
printf ("mutexattr_init failed: %s\n", strerror (ret));
goto out;
}
if ((ret = pthread_mutexattr_setprotocol (&attr,
PTHREAD_PRIO_INHERIT)) != 0)
{
printf ("mutexattr_setprotocol failed: %s\n", strerror (ret));
goto out;
}
if ((ret = pthread_cond_init (&cond, NULL)) != 0)
{
printf ("cond_init failed: %s\n", strerror (ret));
goto out;
}
if ((ret = pthread_mutex_init (&mutex, &attr)) != 0)
{
printf ("mutex_init failed: %s\n", strerror (ret));
goto out;
}
for (j = 0; j < NUM; j++)
if ((ret = pthread_create (&w[j], NULL,
f, (void *) (uintptr_t) j)) != 0)
{
printf ("waiter[%d]: create failed: %s\n", j, strerror (ret));
goto out;
}
if ((ret = pthread_create (&s, NULL, signaller, NULL)) != 0)
{
printf ("signaller: create failed: %s\n", strerror (ret));
goto out;
}
for (j = 0; j < NUM; j++)
{
pthread_cancel (w[j]);
if ((ret = pthread_join (w[j], &thr_ret)) != 0)
{
printf ("waiter[%d]: join failed: %s\n", j, strerror (ret));
goto out;
}
if (thr_ret != NULL && thr_ret != PTHREAD_CANCELED)
{
ret = 1;
goto out;
}
}
/* The signalling thread could have ended before it was cancelled. */
pthread_cancel (s);
if ((ret = pthread_join (s, &thr_ret)) != 0)
{
printf ("signaller: join failed: %s\n", strerror (ret));
goto out;
}
if (thr_ret != NULL && thr_ret != PTHREAD_CANCELED)
{
ret = 1;
goto out;
}
}
out:
return ret;
}
int
do_test (int argc, char **argv)
{
int ret = do_test_wait (waiter);
if (ret)
return ret;
return do_test_wait (timed_waiter);
}
#include "../test-skeleton.c"