score: Delete Thread_Wait_information::id

This field was only by the monitor in non-multiprocessing
configurations.  Add new field Thread_Wait_information::remote_id in
multiprocessing configurations and use it for the remote procedure call
thread queue.

Add _Thread_Wait_get_id() to obtain the object identifier for debug and
system information tools.  Ensure the object layout via static asserts.
Add test cases to sptests/spthreadq01.

1 files changed, 36 insertions, 0 deletions

diff --git a/cpukit/score/include/rtems/score/threadimpl.h b/cpukit/score/include/rtems/score/threadimpl.h
index 516441ed9c..6b65e8ecbc 100644
--- a/cpukit/score/include/rtems/score/threadimpl.h
+++ b/cpukit/score/include/rtems/score/threadimpl.h
@@ -1449,6 +1449,42 @@ RTEMS_INLINE_ROUTINE void _Thread_Wait_set_timeout_code(
 }
 
 /**
+ * @brief Helper structure to ensure that all objects containing a thread queue
+ * have the right layout.
+ *
+ * @see _Thread_Wait_get_id() and THREAD_WAIT_QUEUE_OBJECT_ASSERT().
+ */
+typedef struct {
+  Objects_Control      Object;
+  Thread_queue_Control Wait_queue;
+} Thread_Wait_queue_object;
+
+#define THREAD_WAIT_QUEUE_OBJECT_ASSERT( object_type, wait_queue_member ) \
+  RTEMS_STATIC_ASSERT( \
+    offsetof( object_type, wait_queue_member ) \
+      == offsetof( Thread_Wait_queue_object, Wait_queue ) \
+    && ( &( ( (object_type *) 0 )->wait_queue_member ) \
+      == ( &( (Thread_Wait_queue_object *) 0 )->Wait_queue ) ), \
+    object_type \
+  )
+
+/**
+ * @brief Returns the object identifier of the object containing the current
+ * thread wait queue.
+ *
+ * This function may be used for debug and system information purposes.  The
+ * caller must be the owner of the thread lock.
+ *
+ * @retval 0 The thread waits on no thread queue currently, the thread wait
+ *   queue is not contained in an object, or the current thread state provides
+ *   insufficient information, e.g. the thread is in the middle of a blocking
+ *   operation.
+ * @retval other The object identifier of the object containing the thread wait
+ *   queue.
+ */
+Objects_Id _Thread_Wait_get_id( const Thread_Control *the_thread );
+
+/**
  * @brief General purpose thread wait timeout.
  *
  * @param[in] watchdog The thread timer watchdog.