diff --git a/devicehandlers/DeviceHandlerBase.cpp b/devicehandlers/DeviceHandlerBase.cpp index 0649aaa0..472b81f0 100644 --- a/devicehandlers/DeviceHandlerBase.cpp +++ b/devicehandlers/DeviceHandlerBase.cpp @@ -456,6 +456,15 @@ ReturnValue_t DeviceHandlerBase::insertInCommandMap(DeviceCommandId_t deviceComm } } +size_t DeviceHandlerBase::getNextReplyLength(DeviceCommandId_t commandId){ + DeviceReplyIter iter = deviceReplyMap.find(commandId); + if(iter != deviceReplyMap.end()) { + return iter->second.replyLen; + }else{ + return 0; + } +} + ReturnValue_t DeviceHandlerBase::updateReplyMapEntry(DeviceCommandId_t deviceReply, uint16_t delayCycles, uint16_t maxDelayCycles, bool periodic) { auto replyIter = deviceReplyMap.find(deviceReply); @@ -646,16 +655,12 @@ void DeviceHandlerBase::doGetWrite() { void DeviceHandlerBase::doSendRead() { ReturnValue_t result; - size_t requestLen = 0; + size_t replyLen = 0; if(cookieInfo.pendingCommand != deviceCommandMap.end()) { - DeviceReplyIter iter = deviceReplyMap.find( - cookieInfo.pendingCommand->first); - if(iter != deviceReplyMap.end()) { - requestLen = iter->second.replyLen; - } + replyLen = getNextReplyLength(cookieInfo.pendingCommand->first); } - result = communicationInterface->requestReceiveMessage(comCookie, requestLen); + result = communicationInterface->requestReceiveMessage(comCookie, replyLen); if (result == RETURN_OK) { cookieInfo.state = COOKIE_READ_SENT; diff --git a/devicehandlers/DeviceHandlerBase.h b/devicehandlers/DeviceHandlerBase.h index d61b0407..496c08ff 100644 --- a/devicehandlers/DeviceHandlerBase.h +++ b/devicehandlers/DeviceHandlerBase.h @@ -471,13 +471,27 @@ protected: ReturnValue_t insertInReplyMap(DeviceCommandId_t deviceCommand, uint16_t maxDelayCycles, LocalPoolDataSetBase* dataSet = nullptr, size_t replyLen = 0, bool periodic = false); + /** - * @brief A simple command to add a command to the commandList. + * @brief A simple command to add a command to the commandList. * @param deviceCommand The command to add * @return - @c RETURN_OK when the command was successfully inserted, * - @c RETURN_FAILED else. */ ReturnValue_t insertInCommandMap(DeviceCommandId_t deviceCommand); + + /** + * @brief This function returns the reply length of the next reply to read. + * + * @param deviceCommand The command which triggered the device reply. + * + * @details The default implementation assumes only one reply is triggered by the command. In + * case the command triggers multiple replies (e.g. one acknowledgment, one data, + * and one execution status reply), this function can be overwritten to get the + * reply length of the next reply to read. + */ + virtual size_t getNextReplyLength(DeviceCommandId_t deviceCommand); + /** * @brief This is a helper method to facilitate updating entries * in the reply map. @@ -953,7 +967,7 @@ protected: * - NO_REPLY_EXPECTED if there was no reply found. This is not an * error case as many commands do not expect a reply. */ - virtual ReturnValue_t enableReplyInReplyMap(DeviceCommandMap::iterator cmd, + virtual ReturnValue_t enableReplyInReplyMap(DeviceCommandMap::iterator command, uint8_t expectedReplies = 1, bool useAlternateId = false, DeviceCommandId_t alternateReplyID = 0);