[PATCH 2/3] score: Make FIFO thread queue ops public
Sebastian Huber
sebastian.huber at embedded-brains.de
Fri Feb 5 13:37:36 UTC 2021
Update #4230.
---
cpukit/include/rtems/score/threadqops.h | 134 ++++++++++++++++++++++++
cpukit/score/src/threadqops.c | 17 +--
2 files changed, 143 insertions(+), 8 deletions(-)
create mode 100644 cpukit/include/rtems/score/threadqops.h
diff --git a/cpukit/include/rtems/score/threadqops.h b/cpukit/include/rtems/score/threadqops.h
new file mode 100644
index 0000000000..504383e98d
--- /dev/null
+++ b/cpukit/include/rtems/score/threadqops.h
@@ -0,0 +1,134 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSScoreThreadQueue
+ *
+ * @brief This header file provides interfaces related to thread queue
+ * operations.
+ */
+
+/*
+ * Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTEMS_SCORE_THREADQOPS_H
+#define _RTEMS_SCORE_THREADQOPS_H
+
+#include <rtems/score/threadq.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @addtogroup RTEMSScoreThreadQueue
+ *
+ * @{
+ */
+
+/**
+ * @brief Initializes the priority actions so that no actions are performed.
+ *
+ * @param queue is unused.
+ *
+ * @param[out] priority_actions is initialized so that no actions are
+ * performed.
+ */
+void _Thread_queue_Do_nothing_priority_actions(
+ Thread_queue_Queue *queue,
+ Priority_Actions *priority_actions
+);
+
+/**
+ * @brief Enqueues the thread to the FIFO thread queue.
+ *
+ * @param[in, out] queue is the thread queue.
+ *
+ * @param[in, out] the_thread is the thread to enqueue.
+ *
+ * @param[in, out] queue_context is the thread queue context.
+ */
+void _Thread_queue_FIFO_enqueue(
+ Thread_queue_Queue *queue,
+ Thread_Control *the_thread,
+ Thread_queue_Context *queue_context
+);
+
+/**
+ * @brief Extracts the thread from the FIFO thread queue.
+ *
+ * @param[in, out] queue is the thread queue.
+ *
+ * @param[in, out] the_thread is the thread to extract.
+ *
+ * @param[in, out] queue_context is the thread queue context.
+ */
+void _Thread_queue_FIFO_extract(
+ Thread_queue_Queue *queue,
+ Thread_Control *the_thread,
+ Thread_queue_Context *queue_context
+);
+
+/**
+ * @brief Surrenders the thread queue to the first thread on the FIFO thread
+ * queue.
+ *
+ * @param[in, out] queue is the thread queue.
+ *
+ * @param[in, out] heads are heads of the thread queue.
+ *
+ * @param previous_owner is unused.
+ *
+ * @param[in, out] queue_context is the thread queue context.
+ *
+ * @return Returns the first thread on the thread queue according to the queue
+ * order.
+ */
+Thread_Control *_Thread_queue_FIFO_surrender(
+ Thread_queue_Queue *queue,
+ Thread_queue_Heads *heads,
+ Thread_Control *previous_owner,
+ Thread_queue_Context *queue_context
+);
+
+/**
+ * @brief Gets the first thread on the FIFO thread queue.
+ *
+ * @param[in, out] queue is the thread queue.
+ *
+ * @param[in, out] the_thread is the thread to extract.
+ *
+ * @param[in, out] queue_context is the thread queue context.
+ */
+Thread_Control *_Thread_queue_FIFO_first( const Thread_queue_Heads *heads );
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTEMS_SCORE_THREADQOPS_H */
diff --git a/cpukit/score/src/threadqops.c b/cpukit/score/src/threadqops.c
index 813edf1fcd..ef20431178 100644
--- a/cpukit/score/src/threadqops.c
+++ b/cpukit/score/src/threadqops.c
@@ -10,7 +10,7 @@
*/
/*
- * Copyright (c) 2015, 2016 embedded brains GmbH. All rights reserved.
+ * Copyright (c) 2015, 2021 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
@@ -27,6 +27,7 @@
#include "config.h"
#endif
+#include <rtems/score/threadqops.h>
#include <rtems/score/threadimpl.h>
#include <rtems/score/assert.h>
#include <rtems/score/chainimpl.h>
@@ -49,7 +50,7 @@
Queue \
)
-static void _Thread_queue_Do_nothing_priority_actions(
+void _Thread_queue_Do_nothing_priority_actions(
Thread_queue_Queue *queue,
Priority_Actions *priority_actions
)
@@ -198,7 +199,7 @@ static void _Thread_queue_FIFO_do_extract(
_Chain_Extract_unprotected( &scheduler_node->Wait.Priority.Node.Node.Chain );
}
-static void _Thread_queue_FIFO_enqueue(
+void _Thread_queue_FIFO_enqueue(
Thread_queue_Queue *queue,
Thread_Control *the_thread,
Thread_queue_Context *queue_context
@@ -213,7 +214,7 @@ static void _Thread_queue_FIFO_enqueue(
);
}
-static void _Thread_queue_FIFO_extract(
+void _Thread_queue_FIFO_extract(
Thread_queue_Queue *queue,
Thread_Control *the_thread,
Thread_queue_Context *queue_context
@@ -229,9 +230,7 @@ static void _Thread_queue_FIFO_extract(
);
}
-static Thread_Control *_Thread_queue_FIFO_first(
- const Thread_queue_Heads *heads
-)
+Thread_Control *_Thread_queue_FIFO_first( const Thread_queue_Heads *heads )
{
const Chain_Control *fifo;
const Chain_Node *first;
@@ -245,7 +244,7 @@ static Thread_Control *_Thread_queue_FIFO_first(
return _Scheduler_Node_get_owner( scheduler_node );
}
-static Thread_Control *_Thread_queue_FIFO_surrender(
+Thread_Control *_Thread_queue_FIFO_surrender(
Thread_queue_Queue *queue,
Thread_queue_Heads *heads,
Thread_Control *previous_owner,
@@ -254,6 +253,8 @@ static Thread_Control *_Thread_queue_FIFO_surrender(
{
Thread_Control *first;
+ (void) previous_owner;
+
first = _Thread_queue_FIFO_first( heads );
_Thread_queue_Queue_extract(
queue,
--
2.26.2
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