forked from Imagelibrary/rtems
145 lines
4.1 KiB
C
145 lines
4.1 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @ingroup RTEMSTestSuites
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*
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* @brief This source file contains the implementation of the thread queue
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* wrapper.
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*/
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/*
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* Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "tx-support.h"
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#include <rtems/score/threadimpl.h>
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#include <rtems/score/threadqimpl.h>
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#include <string.h>
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void WrapThreadQueueInitialize(
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WrapThreadQueueContext *ctx,
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void ( *handler )( void * ),
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void *arg
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)
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{
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memset( ctx, 0, sizeof( *ctx ) );
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ctx->isr_request.handler = handler;
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ctx->isr_request.arg = arg;
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_Thread_queue_Initialize( &ctx->thread_queue, "Wrap" );
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}
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static void Prepare(
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WrapThreadQueueContext *ctx,
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Thread_Control *thread
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)
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{
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if ( thread->Wait.queue != NULL ) {
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ctx->wrapped_ops = thread->Wait.operations;
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thread->Wait.operations = &ctx->tq_ops;
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} else {
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Thread_queue_Context queue_context;
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ctx->wrapped_ops = NULL;
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_Thread_queue_Context_initialize( &queue_context );
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_Thread_queue_Acquire( &ctx->thread_queue, &queue_context );
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_Thread_Wait_flags_set(
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thread,
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THREAD_WAIT_CLASS_OBJECT | THREAD_WAIT_STATE_INTEND_TO_BLOCK
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);
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_Thread_Wait_claim( thread, &ctx->thread_queue.Queue );
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_Thread_Wait_claim_finalize( thread, &ctx->tq_ops );
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_Thread_queue_Release( &ctx->thread_queue, &queue_context );
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}
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}
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static void WrappedExtract(
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WrapThreadQueueContext *ctx,
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Thread_queue_Queue *queue,
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Thread_Control *thread,
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Thread_queue_Context *queue_context
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)
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{
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if ( ctx->wrapped_ops ) {
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thread->Wait.operations = ctx->wrapped_ops;
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( *thread->Wait.operations->extract )( queue, thread, queue_context );
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}
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}
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static void Extract(
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Thread_queue_Queue *queue,
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Thread_Control *thread,
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Thread_queue_Context *queue_context
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)
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{
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WrapThreadQueueContext *ctx;
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ctx = (WrapThreadQueueContext *) thread->Wait.operations;
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CallWithinISRSubmit( &ctx->isr_request );
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WrappedExtract( ctx, queue, thread, queue_context );
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}
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void WrapThreadQueueExtract(
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WrapThreadQueueContext *ctx,
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Thread_Control *thread
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)
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{
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ctx->tq_ops.extract = Extract;
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Prepare( ctx, thread );
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}
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static void ExtractDirect(
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Thread_queue_Queue *queue,
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Thread_Control *thread,
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Thread_queue_Context *queue_context
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)
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{
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WrapThreadQueueContext *ctx;
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ctx = (WrapThreadQueueContext *) thread->Wait.operations;
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( *ctx->isr_request.handler )( ctx->isr_request.arg );
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WrappedExtract( ctx, queue, thread, queue_context );
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}
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void WrapThreadQueueExtractDirect(
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WrapThreadQueueContext *ctx,
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Thread_Control *thread
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)
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{
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ctx->tq_ops.extract = ExtractDirect;
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Prepare( ctx, thread );
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}
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void WrapThreadQueueDestroy( WrapThreadQueueContext *ctx )
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{
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_Thread_queue_Destroy( &ctx->thread_queue );
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}
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