From: Andreas Dachsberger <andreas.dachsber...@embedded-brains.de>
---
cpukit/include/rtems/score/mrspimpl.h | 154 ++++++++++++++++++++++++++++++++++
1 file changed, 154 insertions(+)
diff --git a/cpukit/include/rtems/score/mrspimpl.h
b/cpukit/include/rtems/score/mrspimpl.h
index da3cee3e16..e25068df74 100644
--- a/cpukit/include/rtems/score/mrspimpl.h
+++ b/cpukit/include/rtems/score/mrspimpl.h
@@ -1,3 +1,11 @@
+/**
+ * @file
+ *
+ * @ingroup RTEMSScoreMRSP
+ *
+ * @brief Definitions for Multiprocessor Resource Sharing Protocol (MrsP)
Implementation.
+ */
+
/*
* Copyright (c) 2014, 2016 embedded brains GmbH. All rights reserved.
*
@@ -37,6 +45,12 @@ extern "C" {
#define MRSP_TQ_OPERATIONS &_Thread_queue_Operations_priority_inherit
+/**
+ * @brief Acquires critical accordingt to MrsP.
+ *
+ * @param mrsp The MrsP control for the operation.
+ * @param queue_context The thread queue context.
+ */
RTEMS_INLINE_ROUTINE void _MRSP_Acquire_critical(
MRSP_Control *mrsp,
Thread_queue_Context *queue_context
@@ -45,6 +59,12 @@ RTEMS_INLINE_ROUTINE void _MRSP_Acquire_critical(
_Thread_queue_Acquire_critical( &mrsp->Wait_queue, queue_context );
}
+/**
+ * @brief Releases according to MrsP.
+ *
+ * @param mrsp The MrsP control for the operation.
+ * @param queue_context The thread queue context.
+ */
RTEMS_INLINE_ROUTINE void _MRSP_Release(
MRSP_Control *mrsp,
Thread_queue_Context *queue_context
@@ -53,6 +73,13 @@ RTEMS_INLINE_ROUTINE void _MRSP_Release(
_Thread_queue_Release( &mrsp->Wait_queue, queue_context );
}
+/**
+ * @brief Gets owner of the MrsP control.
+ *
+ * @param mrsp The MrsP control to get the owner from.
+ *
+ * @return The owner of the Mrsp control.
+ */
RTEMS_INLINE_ROUTINE Thread_Control *_MRSP_Get_owner(
const MRSP_Control *mrsp
)
@@ -60,6 +87,12 @@ RTEMS_INLINE_ROUTINE Thread_Control *_MRSP_Get_owner(
return mrsp->Wait_queue.Queue.owner;
}
+/**
+ * @brief Sets owner of the MrsP control.
+ *
+ * @param[out] mrsp The MrsP control to set the owner of.
+ * @param owner The desired new owner for @a mrsp.
+ */
RTEMS_INLINE_ROUTINE void _MRSP_Set_owner(
MRSP_Control *mrsp,
Thread_Control *owner
@@ -68,6 +101,14 @@ RTEMS_INLINE_ROUTINE void _MRSP_Set_owner(
mrsp->Wait_queue.Queue.owner = owner;
}
+/**
+ * @brief Gets priority of the MrsP control.
+ *
+ * @param mrsp The mrsp to get the priority from.
+ * @param scheduler The corresponding scheduler.
+ *
+ * @return The priority of the MrsP control.
+ */
RTEMS_INLINE_ROUTINE Priority_Control _MRSP_Get_priority(
const MRSP_Control *mrsp,
const Scheduler_Control *scheduler
@@ -79,6 +120,13 @@ RTEMS_INLINE_ROUTINE Priority_Control _MRSP_Get_priority(
return mrsp->ceiling_priorities[ scheduler_index ];
}
+/**
+ * @brief Sets priority of the MrsP control
+ *
+ * @param[out] mrsp The MrsP control to set the priority of.
+ * @param schedulger The corresponding scheduler.
+ * @param new_priority The new priority for the MrsP control
+ */
RTEMS_INLINE_ROUTINE void _MRSP_Set_priority(
MRSP_Control *mrsp,
const Scheduler_Control *scheduler,
@@ -91,6 +139,19 @@ RTEMS_INLINE_ROUTINE void _MRSP_Set_priority(
mrsp->ceiling_priorities[ scheduler_index ] = new_priority;
}
+/**
+ * @brief Adds the priority to the given thread.
+ *
+ * @param mrsp The MrsP control for the operation.
+ * @param[in, out] thread The thread to add the priority node to.
+ * @param[out] priority_node The priority node to initialize and add to
+ * the thread.
+ * @param queue_context The thread queue context.
+ *
+ * @retval STATUS_SUCCESSFUL The operation succeeded.
+ * @retval STATUS_MUTEX_CEILING_VIOLATED The wait priority of the thread
+ * exceeds the ceiling priority.
+ */
RTEMS_INLINE_ROUTINE Status_Control _MRSP_Raise_priority(
MRSP_Control *mrsp,
Thread_Control *thread,
@@ -126,6 +187,13 @@ RTEMS_INLINE_ROUTINE Status_Control _MRSP_Raise_priority(
return status;
}
+/**
+ * @brief Removes the priority from the given thread.
+ *
+ * @param[in, out] The thread to remove the priority from.
+ * @param priority_node The priority node to remove from the thread
+ * @param queue_context The thread queue context.
+ */
RTEMS_INLINE_ROUTINE void _MRSP_Remove_priority(
Thread_Control *thread,
Priority_Node *priority_node,
@@ -140,6 +208,14 @@ RTEMS_INLINE_ROUTINE void _MRSP_Remove_priority(
_Thread_Wait_release_default_critical( thread, &lock_context );
}
+/**
+ * @brief Replaces the given priority node with the ceiling priority of
+ * the MrsP control.
+ *
+ * @param mrsp The mrsp control for the operation.
+ * @param[out] thread The thread to replace the priorities.
+ * @param ceiling_priority The node to be replaced.
+ */
RTEMS_INLINE_ROUTINE void _MRSP_Replace_priority(
MRSP_Control *mrsp,
Thread_Control *thread,
@@ -157,6 +233,17 @@ RTEMS_INLINE_ROUTINE void _MRSP_Replace_priority(
_Thread_Wait_release_default( thread, &lock_context );
}
+/**
+ * @brief Claims ownership of the MrsP control.
+ *
+ * @param mrsp The MrsP control to claim the ownership of.
+ * @param[in, out] executing The currently executing thread.
+ * @param queue_context The thread queue context.
+ *
+ * @retval STATUS_SUCCESSFUL The operation succeeded.
+ * @retval STATUS_MUTEX_CEILING_VIOLATED The wait priority of the executing
+ * thread exceeds the ceiling priority.
+ */
RTEMS_INLINE_ROUTINE Status_Control _MRSP_Claim_ownership(
MRSP_Control *mrsp,
Thread_Control *executing,
@@ -186,6 +273,20 @@ RTEMS_INLINE_ROUTINE Status_Control _MRSP_Claim_ownership(
return STATUS_SUCCESSFUL;
}
+/**
+ * @brief Initializes a MrsP control.
+ *
+ * @param[out] mrsp The MrsP control that is initialized.
+ * @param scheduler The scheduler for the operation.
+ * @param ceiling_priority
+ * @param executing The currently executing thread. Ignored in this method.
+ * @param initially_locked Indicates whether the MrsP control shall be initally
+ * locked. If it is initially locked, this method returns
STATUS_INVALID_NUMBER.
+ *
+ * @retval STATUS_SUCCESSFUL The operation succeeded.
+ * @retval STATUS_INVALID_NUMBER The MrsP control is initially locked.
+ * @retval STATUS_NO_MEMORY There is not enough memory to allocate.
+ */
RTEMS_INLINE_ROUTINE Status_Control _MRSP_Initialize(
MRSP_Control *mrsp,
const Scheduler_Control *scheduler,
@@ -225,6 +326,19 @@ RTEMS_INLINE_ROUTINE Status_Control _MRSP_Initialize(
return STATUS_SUCCESSFUL;
}
+/**
+ * @brief Waits for the ownership of the MrsP control.
+ *
+ * @param[in, out] mrsp The MrsP control to get the ownership of.
+ * @param[in, out] executing The currently executing thread.
+ * @param queue_context the thread queue context.
+ *
+ * @retval STATUS_SUCCESSFUL The operation succeeded.
+ * @retval STATUS_MUTEX_CEILING_VIOLATED The wait priority of the
+ * currently executing thread exceeds the ceiling priority.
+ * @retval STATUS_DEADLOCK A deadlock occured.
+ * @retval STATUS_TIMEOUT A timeout occured.
+ */
RTEMS_INLINE_ROUTINE Status_Control _MRSP_Wait_for_ownership(
MRSP_Control *mrsp,
Thread_Control *executing,
@@ -283,6 +397,20 @@ RTEMS_INLINE_ROUTINE Status_Control
_MRSP_Wait_for_ownership(
return status;
}
+/**
+ * @brief Seizes the MrsP control.
+ *
+ * @param[in, out] mrsp The MrsP control to seize the control of.
+ * @param[in, out] executing The currently executing thread.
+ * @param wait Indicates whether the calling thread is willing to wait.
+ * @param queue_context The thread queue context.
+ *
+ * @retval STATUS_SUCCESSFUL The operation succeeded.
+ * @retval STATUS_MUTEX_CEILING_VIOLATED The wait priority of the executing
+ * thread exceeds the ceiling priority.
+ * @retval STATUS_UNAVAILABLE The executing thread is already the owner of
+ * the MrsP control. Seizing it is not possible.
+ */
RTEMS_INLINE_ROUTINE Status_Control _MRSP_Seize(
MRSP_Control *mrsp,
Thread_Control *executing,
@@ -312,6 +440,16 @@ RTEMS_INLINE_ROUTINE Status_Control _MRSP_Seize(
return status;
}
+/**
+ * @brief Surrenders the MrsP control.
+ *
+ * @param[in, out] mrsp The MrsP control to surrender the control of.
+ * @param[in, out] executing The currently executing thread.
+ * @param queue_context The thread queue context.
+ *
+ * @retval STATUS_SUCCESSFUL The operation succeeded.
+ * @retval STATUS_NOT_OWNER The executing thread does not own the MrsP control.
+ */
RTEMS_INLINE_ROUTINE Status_Control _MRSP_Surrender(
MRSP_Control *mrsp,
Thread_Control *executing,
@@ -354,6 +492,16 @@ RTEMS_INLINE_ROUTINE Status_Control _MRSP_Surrender(
return STATUS_SUCCESSFUL;
}
+/**
+ * @brief Checks if the MrsP control can be destroyed.
+ *
+ * @param mrsp The MrsP control for the operation.
+ *
+ * @retval STATUS_SUCCESSFUL The MrsP is currently not used
+ * and can be destroyed.
+ * @retval STATUS_RESOURCE_IN_USE The MrsP control is in use,
+ * it cannot be destroyed.
+ */
RTEMS_INLINE_ROUTINE Status_Control _MRSP_Can_destroy( MRSP_Control *mrsp )
{
if ( _MRSP_Get_owner( mrsp ) != NULL ) {
@@ -363,6 +511,12 @@ RTEMS_INLINE_ROUTINE Status_Control _MRSP_Can_destroy(
MRSP_Control *mrsp )
return STATUS_SUCCESSFUL;
}
+/**
+ * @brief Destroys the MrsP control
+ *
+ * @param[in, out] The mrsp that is about to be destroyed.
+ * @param queue_context The thread queue context.
+ */
RTEMS_INLINE_ROUTINE void _MRSP_Destroy(
MRSP_Control *mrsp,
Thread_queue_Context *queue_context
--
2.16.4
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