POSIX Semaphore: Add restrict keyword per Single UNIX Specification

cpukit/posix/include/semaphore.h

@@ -124,8 +124,8 @@ int sem_trywait(
  * @brief Lock a semaphore.
  */
 int sem_timedwait(
-  sem_t                 *sem,
-  const struct timespec *timeout
+  sem_t                 *__restrict sem,
+  const struct timespec *__restrict timeout
 );
 #endif
 
@@ -144,8 +144,8 @@ int sem_post(
  * 11.2.8 Get the Value of a Semaphore, P1003.1b-1993, p.229
  */
 int sem_getvalue(
-  sem_t  *sem,
-  int    *sval
+  sem_t  *__restrict sem,
+  int    *__restrict sval
 );
 
 #endif   /* _POSIX_SEMAPHORES */

cpukit/posix/src/semgetvalue.c

@@ -33,8 +33,8 @@
 #include <rtems/seterr.h>
 
 int sem_getvalue(
-  sem_t  *sem,
-  int    *sval
+  sem_t  *__restrict sem,
+  int    *__restrict sval
 )
 {
   register POSIX_Semaphore_Control *the_semaphore;

cpukit/posix/src/semtimedwait.c

@@ -39,8 +39,8 @@
  */
 
 int sem_timedwait(
-  sem_t                 *sem,
-  const struct timespec *abstime
+  sem_t                 *__restrict sem,
+  const struct timespec *__restrict abstime
 )
 {
   Watchdog_Interval                            ticks;