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-rw-r--r--linuxthreads/Examples/ex13.c112
1 files changed, 0 insertions, 112 deletions
diff --git a/linuxthreads/Examples/ex13.c b/linuxthreads/Examples/ex13.c
deleted file mode 100644
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--- a/linuxthreads/Examples/ex13.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/* Test for Pthreads/mutexes.
- Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Kurt Garloff <garloff@suse.de>, 2000.
-
- 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; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include <errno.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-static void *thread_start (void *ptr) __attribute__ ((__noreturn__));
-
-
-struct thr_ctrl
-{
- pthread_mutex_t mutex;
- pthread_cond_t cond;
- int retval;
-};
-
-static void
-dump_mut (pthread_mutex_t * mut)
-{
- size_t i;
- for (i = 0; i < sizeof (*mut); i++)
- printf (" %02x", *((unsigned char *) mut + i));
- printf ("\n");
-};
-
-/* Helper, the opposite of pthread_cond_wait (cond, mut). */
-static void
-pthr_cond_signal_mutex (pthread_cond_t * cond, pthread_mutex_t * mut)
-{
- int err;
- err = pthread_mutex_lock (mut);
- if (err)
- printf ("mutex_lock : %s\n", strerror (err));
- err = pthread_cond_signal (cond);
- if (err)
- printf ("cond_signal : %s\n", strerror (err));
- err = pthread_mutex_unlock (mut);
- if (err)
- printf ("mutex_unlock: %s\n", strerror (err));
-}
-
-static void *
-thread_start (void *ptr)
-{
- struct thr_ctrl *tc = ptr;
- /* Do initialization. */
- /* ... */
- /* Signal that we are ready. */
- pthr_cond_signal_mutex (&tc->cond, &tc->mutex);
- sleep (2);
- pthr_cond_signal_mutex (&tc->cond, &tc->mutex);
- tc->retval = 0;
- pthread_exit (&tc->retval);
-}
-
-int
-main (void)
-{
- struct thr_ctrl threadctrl;
- pthread_t thread;
- int err;
- void *res = &threadctrl.retval;
- pthread_mutexattr_t mutattr;
- pthread_mutexattr_init (&mutattr);
- pthread_mutex_init (&threadctrl.mutex, &mutattr);
- pthread_cond_init (&threadctrl.cond, NULL);
- err = pthread_mutex_lock (&threadctrl.mutex);
- if (err)
- printf ("mutex_lock : %s\n", strerror (err));
- dump_mut (&threadctrl.mutex);
- pthread_create (&thread, NULL, thread_start, &threadctrl);
- /* Wait until it's ready. */
- err = pthread_cond_wait (&threadctrl.cond, &threadctrl.mutex);
- if (err)
- printf ("cond_wait : %s\n", strerror (err));
- /* Now, we should have acquired the mutex again! */
- dump_mut (&threadctrl.mutex);
- sleep (1);
- dump_mut (&threadctrl.mutex);
- err = pthread_cond_wait (&threadctrl.cond, &threadctrl.mutex);
- if (err)
- {
- printf ("cond_wait : %s\n", strerror (err));
- printf ("ERROR\n");
- abort ();
- };
- dump_mut (&threadctrl.mutex);
- pthread_join (thread, &res);
- printf ("OK\n");
- return 0;
-}