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mq doc improvements

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This commit is contained in:
Robin Müller 2020-05-18 17:31:05 +02:00
parent 1d4d01d190
commit d1500a7868
2 changed files with 72 additions and 57 deletions
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9
osal/FreeRTOS/MessageQueue.cpp
View File

@ -50,14 +50,16 @@ ReturnValue_t MessageQueue::reply(MessageQueueMessage* message) {
ReturnValue_t MessageQueue::sendMessageFrom(MessageQueueId_t sendTo,
MessageQueueMessage* message, MessageQueueId_t sentFrom,
bool ignoreFault) {
return sendMessageFromMessageQueue(sendTo,message,sentFrom,ignoreFault, callContext);
return sendMessageFromMessageQueue(sendTo, message, sentFrom,
ignoreFault, callContext);
}
ReturnValue_t MessageQueue::handleSendResult(BaseType_t result, bool ignoreFault) {
if (result != pdPASS) {
if (!ignoreFault) {
InternalErrorReporterIF* internalErrorReporter = objectManager->get<InternalErrorReporterIF>(
InternalErrorReporterIF* internalErrorReporter =
objectManager->get<InternalErrorReporterIF>(
objects::INTERNAL_ERROR_REPORTER);
if (internalErrorReporter != NULL) {
internalErrorReporter->queueMessageNotSent();
@ -78,7 +80,8 @@ ReturnValue_t MessageQueue::receiveMessage(MessageQueueMessage* message,
}
ReturnValue_t MessageQueue::receiveMessage(MessageQueueMessage* message) {
BaseType_t result = xQueueReceive(handle,reinterpret_cast<void*>(message->getBuffer()), 0);
BaseType_t result = xQueueReceive(handle,reinterpret_cast<void*>(
message->getBuffer()), 0);
if (result == pdPASS){
this->lastPartner = message->getSender();
return HasReturnvaluesIF::RETURN_OK;

98
osal/FreeRTOS/MessageQueue.h
View File

@ -12,28 +12,28 @@ extern "C" {
}
//TODO this class assumes that MessageQueueId_t is the same size as void* (the FreeRTOS handle type), compiler will catch this but it might be nice to have something checking or even an always working solution
// https://scaryreasoner.wordpress.com/2009/02/28/checking-sizeof-at-compile-time/
/**
* @brief This class manages sending and receiving of message queue messages.
*
* @details Message queues are used to pass asynchronous messages between processes.
* @brief This class manages sending and receiving of
* message queue messages.
* @details
* Message queues are used to pass asynchronous messages between processes.
* They work like post boxes, where all incoming messages are stored in FIFO
* order. This class creates a new receiving queue and provides methods to fetch
* received messages. Being a child of MessageQueueSender, this class also provides
* methods to send a message to a user-defined or a default destination. In addition
* it also provides a reply method to answer to the queue it received its last message
* from.
* received messages. Being a child of MessageQueueSender, this class also
* provides methods to send a message to a user-defined or a default destination.
* In addition it also provides a reply method to answer to the queue it
* received its last message from.
*
* The MessageQueue should be used as "post box" for a single owning object. So all
* message queue communication is "n-to-one".
* For creating the queue, as well as sending and receiving messages, the class makes
* use of the operating system calls provided.
* The MessageQueue should be used as "post box" for a single owning object.
* So all message queue communication is "n-to-one".
* For creating the queue, as well as sending and receiving messages, the class
* makes use of the operating system calls provided.
*
* Please keep in mind that FreeRTOS offers
* different calls for message queue operations if called from an ISR.
* Please keep in mind that FreeRTOS offers different calls for message queue
* operations if called from an ISR.
* For now, the system context needs to be switched manually.
* @ingroup osal
* @ingroup message_queue
@ -43,21 +43,26 @@ class MessageQueue : public MessageQueueIF {
public:
/**
* @brief The constructor initializes and configures the message queue.
* @details By making use of the according operating system call, a message queue is created
* @details
* By making use of the according operating system call, a message queue is created
* and initialized. The message depth - the maximum number of messages to be
* buffered - may be set with the help of a parameter, whereas the message size is
* automatically set to the maximum message queue message size. The operating system
* sets the message queue id, or i case of failure, it is set to zero.
* @param message_depth The number of messages to be buffered before passing an error to the
* @param message_depth
* The number of messages to be buffered before passing an error to the
* sender. Default is three.
* @param max_message_size With this parameter, the maximum message size can be adjusted.
* @param max_message_size
* With this parameter, the maximum message size can be adjusted.
* This should be left default.
*/
MessageQueue( size_t message_depth = 3, size_t max_message_size = MessageQueueMessage::MAX_MESSAGE_SIZE );
MessageQueue( size_t message_depth = 3,
size_t max_message_size = MessageQueueMessage::MAX_MESSAGE_SIZE );
/**
* @brief The destructor deletes the formerly created message queue.
* @details This is accomplished by using the delete call provided by the operating system.
* @details This is accomplished by using the delete call provided
* by the operating system.
*/
virtual ~MessageQueue();
@ -90,27 +95,28 @@ public:
ReturnValue_t reply( MessageQueueMessage* message );
/**
* \brief With the sendMessage call, a queue message is sent to a receiving queue.
* \details This method takes the message provided, adds the sentFrom information and passes
* @brief With the sendMessage call, a queue message is sent to a receiving queue.
* @details This method takes the message provided, adds the sentFrom information and passes
* it on to the destination provided with an operating system call. The OS's return
* value is returned.
* \param sendTo This parameter specifies the message queue id to send the message to.
* \param message This is a pointer to a previously created message, which is sent.
* \param sentFrom The sentFrom information can be set to inject the sender's queue id into the message.
* @param sendTo This parameter specifies the message queue id to send the message to.
* @param message This is a pointer to a previously created message, which is sent.
* @param sentFrom The sentFrom information can be set to inject the sender's queue id into the message.
* This variable is set to zero by default.
* \param ignoreFault If set to true, the internal software fault counter is not incremented if queue is full.
* @param ignoreFault If set to true, the internal software fault counter is not incremented if queue is full.
*/
virtual ReturnValue_t sendMessageFrom( MessageQueueId_t sendTo, MessageQueueMessage* message,
MessageQueueId_t sentFrom = NO_QUEUE, bool ignoreFault = false );
/**
* \brief The sendToDefault method sends a queue message to the default destination.
* \details In all other aspects, it works identical to the sendMessage method.
* \param message This is a pointer to a previously created message, which is sent.
* \param sentFrom The sentFrom information can be set to inject the sender's queue id into the message.
* @brief The sendToDefault method sends a queue message to the default destination.
* @details In all other aspects, it works identical to the sendMessage method.
* @param message This is a pointer to a previously created message, which is sent.
* @param sentFrom The sentFrom information can be set to inject the sender's queue id into the message.
* This variable is set to zero by default.
*/
virtual ReturnValue_t sendToDefaultFrom( MessageQueueMessage* message, MessageQueueId_t sentFrom = NO_QUEUE, bool ignoreFault = false );
virtual ReturnValue_t sendToDefaultFrom( MessageQueueMessage* message,
MessageQueueId_t sentFrom = NO_QUEUE, bool ignoreFault = false );
/**
* @brief This function reads available messages from the message queue and returns the sender.
@ -147,27 +153,34 @@ public:
MessageQueueId_t getId() const;
/**
* \brief This method is a simple setter for the default destination.
* @brief This method is a simple setter for the default destination.
*/
void setDefaultDestination(MessageQueueId_t defaultDestination);
/**
* \brief This method is a simple getter for the default destination.
* @brief This method is a simple getter for the default destination.
*/
MessageQueueId_t getDefaultDestination() const;
bool isDefaultDestinationSet() const;
protected:
/**
* Implementation to be called from any send Call within MessageQueue and MessageQueueSenderIF
* \details This method takes the message provided, adds the sentFrom information and passes
* it on to the destination provided with an operating system call. The OS's return
* value is returned.
* \param sendTo This parameter specifies the message queue id to send the message to.
* \param message This is a pointer to a previously created message, which is sent.
* \param sentFrom The sentFrom information can be set to inject the sender's queue id into the message.
* This variable is set to zero by default.
* \param ignoreFault If set to true, the internal software fault counter is not incremented if queue is full.
* \param context
* @brief Implementation to be called from any send Call within
* MessageQueue and MessageQueueSenderIF.
* @details
* This method takes the message provided, adds the sentFrom information and
* passes it on to the destination provided with an operating system call.
* The OS's return value is returned.
* @param sendTo
* This parameter specifies the message queue id to send the message to.
* @param message
* This is a pointer to a previously created message, which is sent.
* @param sentFrom
* The sentFrom information can be set to inject the sender's queue id into
* the message. This variable is set to zero by default.
* @param ignoreFault
* If set to true, the internal software fault counter is not incremented
* if queue is full.
* @param context Specify whether call is made from task or from an ISR.
*/
static ReturnValue_t sendMessageFromMessageQueue(MessageQueueId_t sendTo,
MessageQueueMessage* message, MessageQueueId_t sentFrom = NO_QUEUE,
@ -175,7 +188,6 @@ protected:
static ReturnValue_t handleSendResult(BaseType_t result, bool ignoreFault);
private:
QueueHandle_t handle;
MessageQueueId_t defaultDestination;