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, 25 insertions, 0 deletions

diff --git a/cpukit/posix/include/rtems/posix/posixapi.h b/cpukit/posix/include/rtems/posix/posixapi.h
index a5afe92872..fabde4d6f9 100644
--- a/cpukit/posix/include/rtems/posix/posixapi.h
+++ b/cpukit/posix/include/rtems/posix/posixapi.h
@@ -23,6 +23,8 @@
 #include <rtems/score/assert.h>
 #include <rtems/score/apimutex.h>
 #include <rtems/score/objectimpl.h>
+#include <rtems/score/threadimpl.h>
+#include <rtems/seterr.h>
 
 /**
  * @defgroup POSIXAPI RTEMS POSIX API
@@ -60,6 +62,29 @@ RTEMS_INLINE_ROUTINE int _POSIX_Get_by_name_error(
   return _POSIX_Get_by_name_error_table[ error ];
 }
 
+RTEMS_INLINE_ROUTINE int _POSIX_Get_error( Status_Control status )
+{
+  return STATUS_GET_POSIX( status );
+}
+
+RTEMS_INLINE_ROUTINE int _POSIX_Get_error_after_wait(
+  const Thread_Control *executing
+)
+{
+  return _POSIX_Get_error( _Thread_Wait_get_status( executing ) );
+}
+
+RTEMS_INLINE_ROUTINE int _POSIX_Zero_or_minus_one_plus_errno(
+  Status_Control status
+)
+{
+  if ( status == STATUS_SUCCESSFUL ) {
+    return 0;
+  }
+
+  rtems_set_errno_and_return_minus_one( _POSIX_Get_error( status ) );
+}
+
 /**
  * @brief Macro to generate a function body to get a POSIX object by
  * identifier.