From: Andreas Dachsberger <andreas.dachsber...@embedded-brains.de>
---
cpukit/include/rtems/score/coremuteximpl.h | 168 ++++++++++++++++++++++++++++-
1 file changed, 164 insertions(+), 4 deletions(-)
diff --git a/cpukit/include/rtems/score/coremuteximpl.h
b/cpukit/include/rtems/score/coremuteximpl.h
index 85cff5510f..e04a91c563 100644
--- a/cpukit/include/rtems/score/coremuteximpl.h
+++ b/cpukit/include/rtems/score/coremuteximpl.h
@@ -31,14 +31,20 @@ extern "C" {
/**
* @addtogroup RTEMSScoreMutex
+ *
+ * @{
*/
-/**@{**/
#define CORE_MUTEX_TQ_OPERATIONS &_Thread_queue_Operations_priority
#define CORE_MUTEX_TQ_PRIORITY_INHERIT_OPERATIONS \
&_Thread_queue_Operations_priority_inherit
+/**
+ * @brief Initializes the mutex.
+ *
+ * @param[out] the_mutex The mutex to initialize.
+ */
RTEMS_INLINE_ROUTINE void _CORE_mutex_Initialize(
CORE_mutex_Control *the_mutex
)
@@ -46,11 +52,22 @@ RTEMS_INLINE_ROUTINE void _CORE_mutex_Initialize(
_Thread_queue_Object_initialize( &the_mutex->Wait_queue );
}
+/**
+ * @brief Destroys the mutex.
+ *
+ * @param[out] the_mutex the mutex to destroy.
+ */
RTEMS_INLINE_ROUTINE void _CORE_mutex_Destroy( CORE_mutex_Control *the_mutex )
{
_Thread_queue_Destroy( &the_mutex->Wait_queue );
}
+/**
+ * @brief Acquires the mutex critical.
+ *
+ * @param[in, out] the_mutex The mutex to acquire critical.
+ * @param queue_context The queue context.
+ */
RTEMS_INLINE_ROUTINE void _CORE_mutex_Acquire_critical(
CORE_mutex_Control *the_mutex,
Thread_queue_Context *queue_context
@@ -59,6 +76,12 @@ RTEMS_INLINE_ROUTINE void _CORE_mutex_Acquire_critical(
_Thread_queue_Acquire_critical( &the_mutex->Wait_queue, queue_context );
}
+/**
+ * @brief Releases the mutex.
+ *
+ * @param[in, out] the_mutex The mutex to release.
+ * @param queue_context The queue context.
+ */
RTEMS_INLINE_ROUTINE void _CORE_mutex_Release(
CORE_mutex_Control *the_mutex,
Thread_queue_Context *queue_context
@@ -67,6 +90,13 @@ RTEMS_INLINE_ROUTINE void _CORE_mutex_Release(
_Thread_queue_Release( &the_mutex->Wait_queue, queue_context );
}
+/**
+ * @brief Gets the owner of the mutex.
+ *
+ * @param the_mutex The mutex to get the owner from.
+ *
+ * @return The owner of the mutex.
+ */
RTEMS_INLINE_ROUTINE Thread_Control *_CORE_mutex_Get_owner(
const CORE_mutex_Control *the_mutex
)
@@ -75,12 +105,12 @@ RTEMS_INLINE_ROUTINE Thread_Control *_CORE_mutex_Get_owner(
}
/**
- * @brief Is mutex locked.
+ * @brief Checks if the mutex is locked.
*
- * This routine returns true if the mutex specified is locked and false
+ * This routine returns true if the specified mutex is locked and false
* otherwise.
*
- * @param[in] the_mutex is the mutex to check.
+ * @param the_mutex The mutex to check if it is locked.
*
* @retval true The mutex is locked.
* @retval false The mutex is not locked.
@@ -92,6 +122,18 @@ RTEMS_INLINE_ROUTINE bool _CORE_mutex_Is_locked(
return _CORE_mutex_Get_owner( the_mutex ) != NULL;
}
+/**
+ * @brief Seize the mutex slowly.
+ *
+ * @param[in, out] the_mutex The mutex to seize.
+ * @param operations The thread queue operations.
+ * @param executing The calling thread.
+ * @param wait Indicates whether the calling thread is willing to wait.
+ * @param queue_context The thread queue context.
+ *
+ * @retval _Thread_Wait_get_status The status of the executing thread.
+ * @retval STATUS_UNAVAILABLE The calling thread is not willing to wait.
+ */
Status_Control _CORE_mutex_Seize_slow(
CORE_mutex_Control *the_mutex,
const Thread_queue_Operations *operations,
@@ -100,6 +142,12 @@ Status_Control _CORE_mutex_Seize_slow(
Thread_queue_Context *queue_context
);
+/**
+ * @brief Sets the owner of the mutex.
+ *
+ * @param[out] the_mutex The mutex to set the owner from.
+ * @param owner The new owner of the mutex.
+ */
RTEMS_INLINE_ROUTINE void _CORE_mutex_Set_owner(
CORE_mutex_Control *the_mutex,
Thread_Control *owner
@@ -108,6 +156,15 @@ RTEMS_INLINE_ROUTINE void _CORE_mutex_Set_owner(
the_mutex->Wait_queue.Queue.owner = owner;
}
+/**
+ * @brief Checks if the the thread is the owner of the mutex.
+ *
+ * @param the_mutex The mutex to check the owner of.
+ * @param the_thread The thread to check if it is the owner of @a the_mutex.
+ *
+ * @retval true @a the_thread is the owner of @a the_mutex.
+ * @retval false @a the_thread is not the owner of @a the_mutex.
+ */
RTEMS_INLINE_ROUTINE bool _CORE_mutex_Is_owner(
const CORE_mutex_Control *the_mutex,
const Thread_Control *the_thread
@@ -116,6 +173,11 @@ RTEMS_INLINE_ROUTINE bool _CORE_mutex_Is_owner(
return _CORE_mutex_Get_owner( the_mutex ) == the_thread;
}
+/**
+ * @brief Initializes a recursive mutex.
+ *
+ * @param[out] the_mutex The recursive mutex to initialize.
+ */
RTEMS_INLINE_ROUTINE void _CORE_recursive_mutex_Initialize(
CORE_recursive_mutex_Control *the_mutex
)
@@ -124,6 +186,13 @@ RTEMS_INLINE_ROUTINE void _CORE_recursive_mutex_Initialize(
the_mutex->nest_level = 0;
}
+/**
+ * @brief Seizes the recursive mutex nested.
+ *
+ * @param[out] the_mutex The recursive mutex to seize nested.
+ *
+ * @return STATUS_SUCCESSFUL, this method is always successful.
+ */
RTEMS_INLINE_ROUTINE Status_Control _CORE_recursive_mutex_Seize_nested(
CORE_recursive_mutex_Control *the_mutex
)
@@ -132,6 +201,21 @@ RTEMS_INLINE_ROUTINE Status_Control
_CORE_recursive_mutex_Seize_nested(
return STATUS_SUCCESSFUL;
}
+/**
+ * @brief Seizes the recursive mutex.
+ *
+ * @param[in, out] the_mutex The recursive mutex to seize.
+ * @param operations The thread queue operations.
+ * @param[out] executing The executing thread.
+ * @param wait Indicates whether the calling thread is willing to wait.
+ * @param nested Returns the status of a recursive mutex.
+ * @param queue_context The thread queue context.
+ *
+ * @retval STATUS_SUCCESSFUL The owner of the mutex was NULL, successful
+ * seizing of the mutex.
+ * @retval _Thread_Wait_get_status The status of the executing thread.
+ * @retval STATUS_UNAVAILABLE The calling thread is not willing to wait.
+ */
RTEMS_INLINE_ROUTINE Status_Control _CORE_recursive_mutex_Seize(
CORE_recursive_mutex_Control *the_mutex,
const Thread_queue_Operations *operations,
@@ -171,6 +255,17 @@ RTEMS_INLINE_ROUTINE Status_Control
_CORE_recursive_mutex_Seize(
);
}
+/**
+ * @brief Surrenders the recursive mutex.
+ *
+ * @param[in, out] the_mutex The recursive mutex to surrender.
+ * @param operations The thread queue operations.
+ * @param executing The executing thread.
+ * @param queue_context the thread queue context.
+ *
+ * @retval STATUS_SUCCESSFUL @a the_mutex is successfully surrendered.
+ * @retval STATUS_NOT_OWNER The executing thread does not own @a the_mutex.
+ */
RTEMS_INLINE_ROUTINE Status_Control _CORE_recursive_mutex_Surrender(
CORE_recursive_mutex_Control *the_mutex,
const Thread_queue_Operations *operations,
@@ -216,6 +311,14 @@ RTEMS_INLINE_ROUTINE Status_Control
_CORE_recursive_mutex_Surrender(
return STATUS_SUCCESSFUL;
}
+/**
+ * @brief initializes a ceiling mutex.
+ *
+ * @param[out] the_mutex The ceiling mutex to initialize.
+ * @param scheduler The scheduler for the new ceiling mutex.
+ * Only needed if RTEMS_SMP is defined
+ * @param priority_ceiling The priority ceiling for the initialized mutex.
+ */
RTEMS_INLINE_ROUTINE void _CORE_ceiling_mutex_Initialize(
CORE_ceiling_mutex_Control *the_mutex,
const Scheduler_Control *scheduler,
@@ -229,6 +332,13 @@ RTEMS_INLINE_ROUTINE void _CORE_ceiling_mutex_Initialize(
#endif
}
+/**
+ * @brief Gets the scheduler of the ceiling mutex.
+ *
+ * @param the_mutex The ceiling mutex to get the scheduler from.
+ *
+ * @return The scheduler of the mutex. If RTEMS_SMP is not defined, the first
entry of the _Scheduler_Table is returned.
+ */
RTEMS_INLINE_ROUTINE const Scheduler_Control *
_CORE_ceiling_mutex_Get_scheduler(
const CORE_ceiling_mutex_Control *the_mutex
@@ -241,6 +351,13 @@ _CORE_ceiling_mutex_Get_scheduler(
#endif
}
+/**
+ * @brief Sets the priority of the ceiling mutex.
+ *
+ * @param[out] the_mutex The ceiling mutex to set the priority of.
+ * @param priority_ceiling The new priority ceiling of the mutex.
+ * @param queue_context The thread queue context.
+ */
RTEMS_INLINE_ROUTINE void _CORE_ceiling_mutex_Set_priority(
CORE_ceiling_mutex_Control *the_mutex,
Priority_Control priority_ceiling,
@@ -266,6 +383,13 @@ RTEMS_INLINE_ROUTINE void _CORE_ceiling_mutex_Set_priority(
}
}
+/**
+ * @brief Gets the priority of the ceiling mutex.
+ *
+ * @param the_mutex The mutex to get the priority from.
+ *
+ * @return The priority ceiling of @a the_mutex.
+ */
RTEMS_INLINE_ROUTINE Priority_Control _CORE_ceiling_mutex_Get_priority(
const CORE_ceiling_mutex_Control *the_mutex
)
@@ -273,6 +397,17 @@ RTEMS_INLINE_ROUTINE Priority_Control
_CORE_ceiling_mutex_Get_priority(
return the_mutex->Priority_ceiling.priority;
}
+/**
+ * @brief Sets the owner of the ceiling mutex.
+ *
+ * @param[in, out] the_mutex The mutex to set the owner of.
+ * @param owner The new owner of @a the_mutex.
+ * @param queue_context The thread queue context.
+ *
+ * @retval STATUS_SUCCESSFUL The owner of the mutex was changed successfully.
+ * @retval STATUS_MUTEX_CEILING_VIOLATED The owners wait priority
+ * is smaller than the priority of the ceiling mutex.
+ */
RTEMS_INLINE_ROUTINE Status_Control _CORE_ceiling_mutex_Set_owner(
CORE_ceiling_mutex_Control *the_mutex,
Thread_Control *owner,
@@ -312,6 +447,21 @@ RTEMS_INLINE_ROUTINE Status_Control
_CORE_ceiling_mutex_Set_owner(
return STATUS_SUCCESSFUL;
}
+/**
+ * @brief Seizes the ceiling mutex.
+ *
+ * @param[in, out] the_mutex The mutex to seize.
+ * @param executing The executing thread.
+ * @param wait Indicates whether the calling thread is willing to wait.
+ * @param nested Function that returns the status of the recursive mutex
+ * @param queue_context The thread queue context.
+ *
+ * @retval STATUS_SUCCESSFUL The owner of the mutex was changed successfully.
+ * @retval STATUS_NOT_DEFINED If the scheduler of the executing thread is not
equal to the owner of @a the_mutex .
+ * @retval STATUS_MUTEX_CEILING_VIOLATED The owners wait priority
+ * is smaller than the priority of the ceiling mutex.
+ * @retval other Return value of @a nested.
+ */
RTEMS_INLINE_ROUTINE Status_Control _CORE_ceiling_mutex_Seize(
CORE_ceiling_mutex_Control *the_mutex,
Thread_Control *executing,
@@ -362,6 +512,16 @@ RTEMS_INLINE_ROUTINE Status_Control
_CORE_ceiling_mutex_Seize(
);
}
+/**
+ * @brief Surrenders the ceiling mutex.
+ *
+ * @param[in, out] the_mutex The ceiling mutex to surrender.
+ * @param executing The executing thread.
+ * @param queue_context The thread queue context.
+ *
+ * @retval STATUS_SUCCESSFUL The ceiling mutex was successfullysurrendered.
+ * @retval STATUS_NOT_OWNER The executing thread is not the owner of @a
the_mutex.
+ */
RTEMS_INLINE_ROUTINE Status_Control _CORE_ceiling_mutex_Surrender(
CORE_ceiling_mutex_Control *the_mutex,
Thread_Control *executing,
--
2.16.4
_______________________________________________
devel mailing list
devel@rtems.org
http://lists.rtems.org/mailman/listinfo/devel
