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urtware / src / urt_node.c @ 17d978fe

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/*
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µRtWare is a lightweight publish/subscribe middleware for real-time
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applications. It was developed as part of the software habitat for the
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Autonomous Mini Robot [1] (AMiRo) but can be used for other purposes as well.
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Copyright (C) 2018..2020  Thomas Schöpping et al.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program.  If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <urtware.h>
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/******************************************************************************/
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/* LOCAL DEFINITIONS                                                          */
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/******************************************************************************/
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/******************************************************************************/
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/* EXPORTED VARIABLES                                                         */
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/******************************************************************************/
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/******************************************************************************/
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/* LOCAL TYPES                                                                */
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/******************************************************************************/
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/******************************************************************************/
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/* LOCAL VARIABLES                                                            */
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/******************************************************************************/
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urt_node_t localNode; //TODO:Correct?
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/******************************************************************************/
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/* LOCAL FUNCTIONS                                                            */
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/******************************************************************************/
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/**
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 * @brief  Main function of a node.
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 *
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 * @param[in] arg  Optional Argument to the thread main function.
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 */
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void _main(void* arg)
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{
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    //TODO: Register to core event
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    if (localNode.setupcallback != NULL)
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    {
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        // urt_osEventMask_t mask = localNode.setupcallback(localNode, arg);
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        // TODOs
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    }
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    else
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    {
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        //TODO: act as if setupcallback returned 0xF..F
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    }
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    if (core._status == URT_STATUS_OK)
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    {
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        //TODO: Suspend all child threads
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        urtCoreSynchronizeNodes(&localNode);
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        //TODO: Resume all child threads
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    }
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    //TODOs
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    return;
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}
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/******************************************************************************/
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/* EXPORTED FUNCTIONS                                                         */
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/******************************************************************************/
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/**
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 * @brief  Initalize a node.
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 *
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 * @param[in] node  The node to initialize. Must not be NULL.
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 * @param[in] thread  The already initialized, exclusive thread for the node. Must not be NULL.
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 * @param[in] setupcallback  Callback function to be executed during setup.
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 *                           May be NULL if no custom setup is required.
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 * @param[in] setupparams  Parameters for the setup callback function.
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 *                         Must be NULL if no setup callback is specified.
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 *                         May be NULL if the specified setup callback does not expect parameters.
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 * @param[in] loopcallback  Callback function to be executed in a loop.
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 *                          Must not be NULL.
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 * @param[in] loopparams  Parameters for the loop callback function.
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 *                        May be NULL if the specified loop callback does not expect parameters.
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 * @param[in] shutdowncallback  Callback function to be executed during shutdown.
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 *                              May be NULL if no custom shutdown is required.
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 * @param[in] shutdownparams  Parameters for the loop callback function.
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 *                            Must be NULL if no shutdown callback is specified.
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 *                            May be NULL if the specified shutdown callback does not expect parameters.
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 */
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void urtNodeInit(urt_node_t* node, urt_osThread_t* thread, urt_nodeSetupCallback_t* setupcallback,
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                 void* setupparams, urt_nodeLoopCallback_t* loopcallback, void* loopparams,
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                 urt_nodeShutdownCallback_t* shutdowncallback, void* shutdownparams)
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{
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  urtDebugAssert(node != NULL);
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  urtDebugAssert(thread != NULL);
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  //TODO: Setupcallback
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  if (setupcallback == NULL)
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    urtDebugAssert(setupparams == NULL);
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  urtDebugAssert(loopcallback != NULL);
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  //urtDebugAssert(/*loopparams*/);
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  //urtDebugAssert(shutdowncallback);
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  //urtDebugAssert(shutdownparams);
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  node->next = NULL;
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  node->thread = thread;
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  node->setupcallback = setupcallback;
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  node->setupparams = setupparams;
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  node->loopcallback = loopcallback;
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  node->loopparams = loopparams;
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  node->shutdowncallback = shutdowncallback;
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  node->shutdownparams = shutdownparams;
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  node->stage = 0;
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  urtEventListenerInit(node->listener);
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  #if (URT_CFG_PUBSUB_PROFILING || URT_CFG_RPC_PROFILING)
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    node->loops = 0;
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  #endif /* URT_CFG_PUBSUB_PROFILING || URT_CFG_RPC_PROFILING */
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  urtMutexLock(&core._lock);
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    node->next = core._nodes;
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    core._nodes = node;
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  urtMutexUnlock(&core._lock);
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  localNode = *node;
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  return;
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}