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Diffstat (limited to 'test/nptl/tst-spin2.c')
-rw-r--r-- | test/nptl/tst-spin2.c | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/test/nptl/tst-spin2.c b/test/nptl/tst-spin2.c deleted file mode 100644 index 6119a3b23..000000000 --- a/test/nptl/tst-spin2.c +++ /dev/null @@ -1,158 +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 <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <sys/mman.h> -#include <sys/wait.h> - - -static int -do_test (void) -{ - size_t ps = sysconf (_SC_PAGESIZE); - char tmpfname[] = "/tmp/tst-spin2.XXXXXX"; - char data[ps]; - void *mem; - int fd; - pthread_spinlock_t *s; - pid_t pid; - char *p; - int err; - - fd = mkstemp (tmpfname); - if (fd == -1) - { - printf ("cannot open temporary file: %m\n"); - return 1; - } - - /* Make sure it is always removed. */ - unlink (tmpfname); - - /* Create one page of data. */ - memset (data, '\0', ps); - - /* Write the data to the file. */ - if (write (fd, data, ps) != (ssize_t) ps) - { - puts ("short write"); - return 1; - } - - mem = mmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); - if (mem == MAP_FAILED) - { - printf ("mmap failed: %m\n"); - return 1; - } - - s = (pthread_spinlock_t *) (((uintptr_t) mem - + __alignof (pthread_spinlock_t)) - & ~(__alignof (pthread_spinlock_t) - 1)); - p = (char *) (s + 1); - - if (pthread_spin_init (s, PTHREAD_PROCESS_SHARED) != 0) - { - puts ("spin_init failed"); - return 1; - } - - if (pthread_spin_lock (s) != 0) - { - puts ("spin_lock failed"); - return 1; - } - - err = pthread_spin_trylock (s); - if (err == 0) - { - puts ("1st spin_trylock succeeded"); - return 1; - } - else if (err != EBUSY) - { - puts ("1st spin_trylock didn't return EBUSY"); - return 1; - } - - err = pthread_spin_unlock (s); - if (err != 0) - { - puts ("parent: spin_unlock failed"); - return 1; - } - - err = pthread_spin_trylock (s); - if (err != 0) - { - puts ("2nd spin_trylock failed"); - return 1; - } - - *p = 0; - - puts ("going to fork now"); - pid = fork (); - if (pid == -1) - { - puts ("fork failed"); - return 1; - } - else if (pid == 0) - { - /* Play some lock ping-pong. It's our turn to unlock first. */ - if ((*p)++ != 0) - { - puts ("child: *p != 0"); - return 1; - } - - if (pthread_spin_unlock (s) != 0) - { - puts ("child: 1st spin_unlock failed"); - return 1; - } - - puts ("child done"); - } - else - { - if (pthread_spin_lock (s) != 0) - { - puts ("parent: 2nd spin_lock failed"); - return 1; - } - - puts ("waiting for child"); - - waitpid (pid, NULL, 0); - - puts ("parent done"); - } - - return 0; -} - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" |