score: Add Status_Control for all APIs

Unify the status codes of the Classic and POSIX API to use the new enum
Status_Control.  This eliminates the Thread_Control::Wait::timeout_code
field and the timeout parameter of _Thread_queue_Enqueue_critical() and
_MPCI_Send_request_packet().  It gets rid of the status code translation
tables and instead uses simple bit operations to get the status for a
particular API.  This enables translation of status code constants at
compile time.  Add _Thread_Wait_get_status() to avoid direct access of
thread internal data structures.

1 files changed, 5 insertions, 7 deletions

diff --git a/cpukit/posix/src/prwlocktrywrlock.c b/cpukit/posix/src/prwlocktrywrlock.c
index b6031f9b42..1181382fca 100644
--- a/cpukit/posix/src/prwlocktrywrlock.c
+++ b/cpukit/posix/src/prwlocktrywrlock.c
@@ -19,6 +19,7 @@
 #endif
 
 #include <rtems/posix/rwlockimpl.h>
+#include <rtems/posix/posixapi.h>
 
 int pthread_rwlock_trywrlock(
   pthread_rwlock_t  *rwlock
@@ -26,7 +27,7 @@ int pthread_rwlock_trywrlock(
 {
   POSIX_RWLock_Control *the_rwlock;
   Thread_queue_Context  queue_context;
-  Thread_Control       *executing;
+  Status_Control        status;
 
   the_rwlock = _POSIX_RWLock_Get( rwlock, &queue_context );
 
@@ -34,15 +35,12 @@ int pthread_rwlock_trywrlock(
     return EINVAL;
   }
 
-  executing = _Thread_Executing;
-  _CORE_RWLock_Seize_for_writing(
+  status = _CORE_RWLock_Seize_for_writing(
     &the_rwlock->RWLock,
-    executing,
+    _Thread_Executing,
     false,                 /* we are not willing to wait */
     0,
     &queue_context
   );
-  return _POSIX_RWLock_Translate_core_RWLock_return_code(
-    (CORE_RWLock_Status) executing->Wait.return_code
-  );
+  return _POSIX_Get_error( status );
 }