diff options
Diffstat (limited to '')
| -rw-r--r-- | cpukit/score/include/rtems/score/threadimpl.h | 36 |
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. |