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Diffstat (limited to 'test/nptl/tst-flock2.c')
| -rw-r--r-- | test/nptl/tst-flock2.c | 259 |
1 files changed, 0 insertions, 259 deletions
diff --git a/test/nptl/tst-flock2.c b/test/nptl/tst-flock2.c deleted file mode 100644 index 941c52ffe..000000000 --- a/test/nptl/tst-flock2.c +++ /dev/null @@ -1,259 +0,0 @@ -/* Copyright (C) 2002, 2003, 2004 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 <stdlib.h> -#include <unistd.h> -#include <sys/file.h> -#include <sys/mman.h> -#include <sys/wait.h> - - -static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; -static pthread_mutex_t lock2 = PTHREAD_MUTEX_INITIALIZER; -static int fd; - - -static void * -tf (void *arg) -{ - struct flock fl = - { - .l_type = F_WRLCK, - .l_start = 0, - .l_whence = SEEK_SET, - .l_len = 10 - }; - if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLKW, &fl)) != 0) - { - puts ("fourth fcntl failed"); - exit (1); - } - - pthread_mutex_unlock (&lock); - - pthread_mutex_lock (&lock2); - - return NULL; -} - - -static int -do_test (void) -{ - char tmp[] = "/tmp/tst-flock2-XXXXXX"; - - fd = mkstemp (tmp); - if (fd == -1) - { - puts ("mkstemp failed"); - return 1; - } - - unlink (tmp); - - int i; - for (i = 0; i < 20; ++i) - write (fd, "foobar xyzzy", 12); - - pthread_barrier_t *b; - b = mmap (NULL, sizeof (pthread_barrier_t), PROT_READ | PROT_WRITE, - MAP_SHARED, fd, 0); - if (b == MAP_FAILED) - { - puts ("mmap failed"); - return 1; - } - - pthread_barrierattr_t ba; - if (pthread_barrierattr_init (&ba) != 0) - { - puts ("barrierattr_init failed"); - return 1; - } - - if (pthread_barrierattr_setpshared (&ba, PTHREAD_PROCESS_SHARED) != 0) - { - puts ("barrierattr_setpshared failed"); - return 1; - } - - if (pthread_barrier_init (b, &ba, 2) != 0) - { - puts ("barrier_init failed"); - return 1; - } - - if (pthread_barrierattr_destroy (&ba) != 0) - { - puts ("barrierattr_destroy failed"); - return 1; - } - - struct flock fl = - { - .l_type = F_WRLCK, - .l_start = 0, - .l_whence = SEEK_SET, - .l_len = 10 - }; - if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLKW, &fl)) != 0) - { - puts ("first fcntl failed"); - return 1; - } - - pid_t pid = fork (); - if (pid == -1) - { - puts ("fork failed"); - return 1; - } - - if (pid == 0) - { - /* Make sure the child does not stay around indefinitely. */ - alarm (10); - - /* Try to get the lock. */ - if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLK, &fl)) == 0) - { - puts ("child: second flock succeeded"); - return 1; - } - } - - pthread_barrier_wait (b); - - if (pid != 0) - { - fl.l_type = F_UNLCK; - if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLKW, &fl)) != 0) - { - puts ("third fcntl failed"); - return 1; - } - } - - pthread_barrier_wait (b); - - pthread_t th; - if (pid == 0) - { - if (pthread_mutex_lock (&lock) != 0) - { - puts ("1st locking of lock failed"); - return 1; - } - - if (pthread_mutex_lock (&lock2) != 0) - { - puts ("1st locking of lock2 failed"); - return 1; - } - - if (pthread_create (&th, NULL, tf, NULL) != 0) - { - puts ("pthread_create failed"); - return 1; - } - - if (pthread_mutex_lock (&lock) != 0) - { - puts ("2nd locking of lock failed"); - return 1; - } - - puts ("child locked file"); - } - - pthread_barrier_wait (b); - - if (pid != 0) - { - fl.l_type = F_WRLCK; - if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLK, &fl)) == 0) - { - puts ("fifth fcntl succeeded"); - return 1; - } - - puts ("file locked by child"); - } - - pthread_barrier_wait (b); - - if (pid == 0) - { - if (pthread_mutex_unlock (&lock2) != 0) - { - puts ("unlock of lock2 failed"); - return 1; - } - - if (pthread_join (th, NULL) != 0) - { - puts ("join failed"); - return 1; - } - - puts ("child's thread terminated"); - } - - pthread_barrier_wait (b); - - if (pid != 0) - { - fl.l_type = F_WRLCK; - if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLK, &fl)) == 0) - { - puts ("fifth fcntl succeeded"); - return 1; - } - - puts ("file still locked"); - } - - pthread_barrier_wait (b); - - if (pid == 0) - { - _exit (0); - } - - int status; - if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid) - { - puts ("waitpid failed"); - return 1; - } - puts ("child terminated"); - - if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLKW, &fl)) != 0) - { - puts ("sixth fcntl failed"); - return 1; - } - - return status; -} - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" |