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authorAndreas Jaeger <aj@suse.de>2000-08-24 09:30:58 +0000
committerAndreas Jaeger <aj@suse.de>2000-08-24 09:30:58 +0000
commit3b526f89b596f308b3a03e0dc0b00ed4673dc449 (patch)
tree56e39b5a2b8da44291bec2b9eaf49216b112e855 /linuxthreads
parent991dca900527357562f9908ef0dd6c166b31737c (diff)
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Update.
Move inclusion of test-skeleton to front to have prototype for add_temp_file.
Diffstat (limited to 'linuxthreads')
-rw-r--r--linuxthreads/Examples/ex13.c27
1 files changed, 15 insertions, 12 deletions
diff --git a/linuxthreads/Examples/ex13.c b/linuxthreads/Examples/ex13.c
index 137ca6e..f50a96e 100644
--- a/linuxthreads/Examples/ex13.c
+++ b/linuxthreads/Examples/ex13.c
@@ -18,12 +18,11 @@
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
-#define _GNU_SOURCE 1
-
-#include <unistd.h>
-#include <stdio.h>
#include <errno.h>
#include <pthread.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
struct thr_ctrl
{
@@ -47,11 +46,14 @@ void
pthr_cond_signal_mutex (pthread_cond_t * cond, pthread_mutex_t * mut)
{
int err;
- if (err = pthread_mutex_lock (mut))
+ err = pthread_mutex_lock (mut);
+ if (err)
printf ("mutex_lock : %s\n", strerror (err));
- if (err = pthread_cond_signal (cond))
+ err = pthread_cond_signal (cond);
+ if (err)
printf ("cond_signal : %s\n", strerror (err));
- if (err = pthread_mutex_unlock (mut))
+ err = pthread_mutex_unlock (mut);
+ if (err)
printf ("mutex_unlock: %s\n", strerror (err));
}
@@ -60,7 +62,6 @@ void *
thread_start (void *ptr)
{
struct thr_ctrl *tc = ptr;
- int err;
/* Do initialization. */
/* ... */
/* Signal that we are ready. */
@@ -82,21 +83,23 @@ main (void)
pthread_mutexattr_init (&mutattr);
pthread_mutex_init (&threadctrl.mutex, &mutattr);
pthread_cond_init (&threadctrl.cond, NULL);
- if (err = pthread_mutex_lock (&threadctrl.mutex))
+ 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. */
- if (err = pthread_cond_wait (&threadctrl.cond, &threadctrl.mutex))
+ 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);
- if (err = pthread_cond_wait (&threadctrl.cond, &threadctrl.mutex))
- printf ("cond_wait : %s\n", strerror (err));
+ err = pthread_cond_wait (&threadctrl.cond, &threadctrl.mutex);
if (err)
{
+ printf ("cond_wait : %s\n", strerror (err));
printf ("ERROR\n");
abort ();
};