[uClibc-cvs] uClibc/include semaphore.h,1.1,1.2
Erik Andersen
andersen at codepoet.org
Thu Feb 27 18:13:15 UTC 2003
Update of /var/cvs/uClibc/include
In directory winder:/tmp/cvs-serv18985/include
Modified Files:
semaphore.h
Log Message:
Major update for pthreads, based in large part on improvements
from glibc 2.3. This should make threads much more efficient.
-Erik
Index: semaphore.h
===================================================================
RCS file: /var/cvs/uClibc/include/semaphore.h,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -d -r1.1 -r1.2
--- semaphore.h 20 Feb 2002 09:18:41 -0000 1.1
+++ semaphore.h 27 Feb 2003 18:12:41 -0000 1.2
@@ -17,6 +17,10 @@
#include <features.h>
#include <sys/types.h>
+#ifdef __USE_XOPEN2K
+# define __need_timespec
+# include <time.h>
+#endif
#ifndef _PTHREAD_DESCR_DEFINED
/* Thread descriptors. Needed for `sem_t' definition. */
@@ -27,11 +31,7 @@
/* System specific semaphore definition. */
typedef struct
{
- struct
- {
- long int status;
- int spinlock;
- } __sem_lock;
+ struct _pthread_fastlock __sem_lock;
int __sem_value;
_pthread_descr __sem_waiting;
} sem_t;
@@ -49,31 +49,39 @@
/* Initialize semaphore object SEM to VALUE. If PSHARED then share it
with other processes. */
-extern int sem_init __P ((sem_t *__sem, int __pshared, unsigned int __value));
+extern int sem_init (sem_t *__sem, int __pshared, unsigned int __value) __THROW;
/* Free resources associated with semaphore object SEM. */
-extern int sem_destroy __P ((sem_t *__sem));
+extern int sem_destroy (sem_t *__sem) __THROW;
/* Open a named semaphore NAME with open flaot OFLAG. */
-extern sem_t *sem_open __P ((__const char *__name, int __oflag, ...));
+extern sem_t *sem_open (__const char *__name, int __oflag, ...) __THROW;
/* Close descriptor for named semaphore SEM. */
-extern int sem_close __P ((sem_t *__sem));
+extern int sem_close (sem_t *__sem) __THROW;
/* Remove named semaphore NAME. */
-extern int sem_unlink __P ((__const char *__name));
+extern int sem_unlink (__const char *__name) __THROW;
/* Wait for SEM being posted. */
-extern int sem_wait __P ((sem_t *__sem));
+extern int sem_wait (sem_t *__sem) __THROW;
+
+#ifdef __USE_XOPEN2K
+/* Similar to `sem_wait' but wait only until ABSTIME. */
+extern int sem_timedwait (sem_t *__restrict __sem,
+ __const struct timespec *__restrict __abstime)
+ __THROW;
+#endif
/* Test whether SEM is posted. */
-extern int sem_trywait __P ((sem_t *__sem));
+extern int sem_trywait (sem_t *__sem) __THROW;
/* Post SEM. */
-extern int sem_post __P ((sem_t *__sem));
+extern int sem_post (sem_t *__sem) __THROW;
/* Get current value of SEM and store it in *SVAL. */
-extern int sem_getvalue __P ((sem_t *__sem, int *__sval));
+extern int sem_getvalue (sem_t *__restrict __sem, int *__restrict __sval)
+ __THROW;
__END_DECLS
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