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.cproject
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#ifndef FSFW_DEFAULTCFG_VERSION_H_
#define FSFW_DEFAULTCFG_VERSION_H_
const char* const FSFW_VERSION_NAME = "ASTP";
#define FSFW_VERSION 0
#define FSFW_SUBVERSION 0
#define FSFW_REVISION 1
#endif /* FSFW_DEFAULTCFG_VERSION_H_ */

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Apache License
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Flight Software Framework
The initial version of the Flight Software Framework was developed during
the Flying Laptop Project by the Universität Stuttgart in coorporation
with Airbus Defence and Space GmbH.
The supreme FSFW Logo was designed by Markus Koller and Luise Trilsbach.
Copyrights in the Flight Software Framework are retained by their contributors.
No copyright assignment is required to contribute to the Flight Software Framework.
Some files include explicit copyright notices and/or license notices.
For full authorship information, see the version control history.
Except as otherwise noted (below and/or in individual files), the
Flight Software Framework is licensed under the Apache License, Version 2.0.
The Flight Software Framework includes modules written by third parties.
The following third party modules are included, and carry
their own copyright notices and license terms:
under contrib/:
* sgp4: sgp4 code developed by david vallado under public domain, see https://www.celestrak.com/publications/AIAA/2006-6753/

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![FSFW Logo](logo/FSFW_Logo_V3_bw.png)
# Flight Software Framework (FSFW)
The Flight Software Framework is a C++ Object Oriented Framework for unmanned,
automated systems like Satellites.
The initial version of the Flight Software Framework was developed during
the Flying Laptop Project by the University of Stuttgart in cooperation
with Airbus Defence and Space GmbH.
## Intended Use
The framework is designed for systems, which communicate with external devices, perform control loops, receive telecommands and send telemetry, and need to maintain a high level of availability.
Therefore, a mode and health system provides control over the states of the software and the controlled devices.
In addition, a simple mechanism of event based fault detection, isolation and recovery is implemented as well.
The recommended hardware is a microprocessor with more than 2 MB of RAM and 1 MB of non-volatile Memory.
For reference, current Applications use a Cobham Gaisler UT699 (LEON3FT), a ISISPACE IOBC or a Zynq-7020 SoC.
## Structure
The general structure is driven by the usage of interfaces provided by objects. The FSFW uses C++11 as baseline. The intention behind this is that this C++ Standard should be widely available, even with older compilers.
The FSFW uses dynamic allocation during the initialization but provides static containers during runtime.
This simplifies the instantiation of objects and allows the usage of some standard containers.
Dynamic Allocation after initialization is discouraged and different solutions are provided in the FSFW to achieve that.
The fsfw uses Run-time type information.
Exceptions are not allowed.
### Failure Handling
Functions should return a defined ReturnValue_t to signal to the caller that something is gone wrong.
Returnvalues must be unique. For this the function HasReturnvaluesIF::makeReturnCode or the Macro MAKE_RETURN can be used.
The CLASS_ID is a unique id for that type of object. See returnvalues/FwClassIds.
### OSAL
The FSFW provides operation system abstraction layers for Linux, FreeRTOS and RTEMS. A independent OSAL called "host" is currently not finished. This aims to be running on windows as well.
The OSAL provides periodic tasks, message queues, clocks and Semaphores as well as Mutexes.
### Core Components
Clock:
* This is a class of static functions that can be used at anytime
* Leap Seconds must be set if any time conversions from UTC to other times is used
ObjectManager (must be created):
* The component which handles all references. All SystemObjects register at this component.
* Any SystemObject needs to have a unique ObjectId. Those can be managed like objects::framework_objects.
* A reference to an object can be get by calling the following function. T must be the specific Interface you want to call.
A nullptr check of the returning Pointer must be done. This function is based on Run-time type information.
``` c++
template <typename T> T* ObjectManagerIF::get( object_id_t id )
```
* A typical way to create all objects on startup is a handing a static produce function to the ObjectManager on creation.
By calling objectManager->initialize() the produce function will be called and all SystemObjects will be initialized afterwards.
Event Manager:
* Component which allows routing of events
* Other objects can subscribe to specific events, ranges of events or all events of an object.
* Subscriptions can be done during runtime but should be done during initialization
* Amounts of allowed subscriptions must be configured by setting this parameters:
``` c++
namespace fsfwconfig {
//! Configure the allocated pool sizes for the event manager.
static constexpr size_t FSFW_EVENTMGMR_MATCHTREE_NODES = 240;
static constexpr size_t FSFW_EVENTMGMT_EVENTIDMATCHERS = 120;
static constexpr size_t FSFW_EVENTMGMR_RANGEMATCHERS = 120;
}
```
Health Table:
* A component which holds every health state
* Provides a thread safe way to access all health states without the need of message exchanges
Stores
* The message based communication can only exchange a few bytes of information inside the message itself. Therefore, additional information can be exchanged with Stores. With this, only the store address must be exchanged in the message.
* Internally, the FSFW uses an IPC Store to exchange data between processes. For incoming TCs a TC Store is used. For outgoing TM a TM store is used.
* All of them should use the Thread Safe Class storagemanager/PoolManager
Tasks
There are two different types of tasks:
* The PeriodicTask just executes objects that are of type ExecutableObjectIF in the order of the insertion to the Tasks.
* FixedTimeslotTask executes a list of calls in the order of the given list. This is intended for DeviceHandlers, where polling should be in a defined order. An example can be found in defaultcfg/fsfwconfig/pollingSequence
### Static Ids in the framework
Some parts of the framework use a static routing address for communication.
An example setup of ids can be found in the example config in "defaultcft/fsfwconfig/objects/Factory::setStaticFrameworkObjectIds()".
### Events
Events are tied to objects. EventIds can be generated by calling the Macro MAKE_EVENT. This works analog to the returnvalues.
Every object that needs own EventIds has to get a unique SUBSYSTEM_ID.
Every SystemObject can call triggerEvent from the parent class.
Therefore, event messages contain the specific EventId and the objectId of the object that has triggered.
### Internal Communication
Components communicate mostly over Message through Queues.
Those queues are created by calling the singleton QueueFactory::instance()->create().
### External Communication
The external communication with the mission control system is mostly up to the user implementation.
The FSFW provides PUS Services which can be used to but don't need to be used.
The services can be seen as a conversion from a TC to a message based communication and back.
#### CCSDS Frames, CCSDS Space Packets and PUS
If the communication is based on CCSDS Frames and Space Packets, several classes can be used to distributed the packets to the corresponding services. Those can be found in tcdistribution.
If Space Packets are used, a timestamper must be created.
An example can be found in the timemanager folder, this uses CCSDSTime::CDS_short.
#### DeviceHandling
DeviceHandlers are a core component of the FSFW.
The idea is, to have a software counterpart of every physical device to provide a simple mode, health and commanding interface.
By separating the underlying Communication Interface with DeviceCommunicationIF, a DH can be tested on different hardware.
The DH has mechanisms to monitor the communication with the physical device which allow for FDIR reaction.
A standard FDIR component for the DH will be created automatically but can be overwritten by the user.
#### Modes, Health
The two interfaces HasModesIF and HasHealthIF provide access for commanding and monitoring of components.
On-board Mode Management is implement in hierarchy system.
DeviceHandlers and Controllers are the lowest part of the hierarchy.
The next layer are Assemblies. Those assemblies act as a component which handle redundancies of handlers.
Assemblies share a common core with the next level which are the Subsystems.
Those Assemblies are intended to act as auto-generated components from a database which describes the subsystem modes.
The definitions contain transition and target tables which contain the DH, Assembly and Controller Modes to be commanded.
Transition tables contain as many steps as needed to reach the mode from any other mode, e.g. a switch into any higher AOCS mode might first turn on the sensors, than the actuators and the controller as last component.
The target table is used to describe the state that is checked continuously by the subsystem.
All of this allows System Modes to be generated as Subsystem object as well from the same database.
This System contains list of subsystem modes in the transition and target tables.
Therefore, it allows a modular system to create system modes and easy commanding of those, because only the highest components must be commanded.
The health state represents if the component is able to perform its tasks.
This can be used to signal the system to avoid using this component instead of a redundant one.
The on-board FDIR uses the health state for isolation and recovery.
## Example config
A example config can be found in defaultcfg/fsfwconfig.
## Unit Tests
Unit Tests are provided in the unittest folder. Those use the catch2 framework but do not include catch2 itself.
See README.md in the unittest Folder.

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#include "ActionHelper.h"
#include "HasActionsIF.h"
#include "../ipc/MessageQueueSenderIF.h"
#include "../objectmanager/ObjectManagerIF.h"
ActionHelper::ActionHelper(HasActionsIF* setOwner,
MessageQueueIF* useThisQueue) :
owner(setOwner), queueToUse(useThisQueue) {
}
ActionHelper::~ActionHelper() {
}
ReturnValue_t ActionHelper::handleActionMessage(CommandMessage* command) {
if (command->getCommand() == ActionMessage::EXECUTE_ACTION) {
ActionId_t currentAction = ActionMessage::getActionId(command);
prepareExecution(command->getSender(), currentAction,
ActionMessage::getStoreId(command));
return HasReturnvaluesIF::RETURN_OK;
} else {
return CommandMessage::UNKNOWN_COMMAND;
}
}
ReturnValue_t ActionHelper::initialize(MessageQueueIF* queueToUse_) {
ipcStore = objectManager->get<StorageManagerIF>(objects::IPC_STORE);
if (ipcStore == nullptr) {
return HasReturnvaluesIF::RETURN_FAILED;
}
if(queueToUse_ != nullptr) {
setQueueToUse(queueToUse_);
}
return HasReturnvaluesIF::RETURN_OK;
}
void ActionHelper::step(uint8_t step, MessageQueueId_t reportTo,
ActionId_t commandId, ReturnValue_t result) {
CommandMessage reply;
ActionMessage::setStepReply(&reply, commandId, step + STEP_OFFSET, result);
queueToUse->sendMessage(reportTo, &reply);
}
void ActionHelper::finish(MessageQueueId_t reportTo, ActionId_t commandId,
ReturnValue_t result) {
CommandMessage reply;
ActionMessage::setCompletionReply(&reply, commandId, result);
queueToUse->sendMessage(reportTo, &reply);
}
void ActionHelper::setQueueToUse(MessageQueueIF* queue) {
queueToUse = queue;
}
void ActionHelper::prepareExecution(MessageQueueId_t commandedBy,
ActionId_t actionId, store_address_t dataAddress) {
const uint8_t* dataPtr = NULL;
size_t size = 0;
ReturnValue_t result = ipcStore->getData(dataAddress, &dataPtr, &size);
if (result != HasReturnvaluesIF::RETURN_OK) {
CommandMessage reply;
ActionMessage::setStepReply(&reply, actionId, 0, result);
queueToUse->sendMessage(commandedBy, &reply);
return;
}
result = owner->executeAction(actionId, commandedBy, dataPtr, size);
ipcStore->deleteData(dataAddress);
if(result == HasActionsIF::EXECUTION_FINISHED) {
CommandMessage reply;
ActionMessage::setCompletionReply(&reply, actionId, result);
queueToUse->sendMessage(commandedBy, &reply);
}
if (result != HasReturnvaluesIF::RETURN_OK) {
CommandMessage reply;
ActionMessage::setStepReply(&reply, actionId, 0, result);
queueToUse->sendMessage(commandedBy, &reply);
return;
}
}
ReturnValue_t ActionHelper::reportData(MessageQueueId_t reportTo,
ActionId_t replyId, SerializeIF* data, bool hideSender) {
CommandMessage reply;
store_address_t storeAddress;
uint8_t *dataPtr;
size_t maxSize = data->getSerializedSize();
if (maxSize == 0) {
//No error, there's simply nothing to report.
return HasReturnvaluesIF::RETURN_OK;
}
size_t size = 0;
ReturnValue_t result = ipcStore->getFreeElement(&storeAddress, maxSize,
&dataPtr);
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
result = data->serialize(&dataPtr, &size, maxSize,
SerializeIF::Endianness::BIG);
if (result != HasReturnvaluesIF::RETURN_OK) {
ipcStore->deleteData(storeAddress);
return result;
}
// We don't need to report the objectId, as we receive REQUESTED data
// before the completion success message.
// True aperiodic replies need to be reported with
// another dedicated message.
ActionMessage::setDataReply(&reply, replyId, storeAddress);
// If the sender needs to be hidden, for example to handle packet
// as unrequested reply, this will be done here.
if (hideSender) {
result = MessageQueueSenderIF::sendMessage(reportTo, &reply);
}
else {
result = queueToUse->sendMessage(reportTo, &reply);
}
if (result != HasReturnvaluesIF::RETURN_OK){
ipcStore->deleteData(storeAddress);
}
return result;
}
void ActionHelper::resetHelper() {
}
ReturnValue_t ActionHelper::reportData(MessageQueueId_t reportTo,
ActionId_t replyId, const uint8_t *data, size_t dataSize,
bool hideSender) {
CommandMessage reply;
store_address_t storeAddress;
ReturnValue_t result = ipcStore->addData(&storeAddress, data, dataSize);
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
if (result != HasReturnvaluesIF::RETURN_OK) {
ipcStore->deleteData(storeAddress);
return result;
}
// We don't need to report the objectId, as we receive REQUESTED data
// before the completion success message.
// True aperiodic replies need to be reported with
// another dedicated message.
ActionMessage::setDataReply(&reply, replyId, storeAddress);
// If the sender needs to be hidden, for example to handle packet
// as unrequested reply, this will be done here.
if (hideSender) {
result = MessageQueueSenderIF::sendMessage(reportTo, &reply);
}
else {
result = queueToUse->sendMessage(reportTo, &reply);
}
if (result != HasReturnvaluesIF::RETURN_OK){
ipcStore->deleteData(storeAddress);
}
return result;
}

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#ifndef FSFW_ACTION_ACTIONHELPER_H_
#define FSFW_ACTION_ACTIONHELPER_H_
#include "ActionMessage.h"
#include "../serialize/SerializeIF.h"
#include "../ipc/MessageQueueIF.h"
/**
* @brief Action Helper is a helper class which handles action messages
*
* Components which use the HasActionIF this helper can be used to handle
* the action messages.
* It does handle step messages as well as other answers to action calls.
* It uses the executeAction function of its owner as callback.
* The call of the initialize function is mandatory and needs a
* valid MessageQueueIF pointer!
*/
class HasActionsIF;
class ActionHelper {
public:
/**
* Constructor of the action helper
* @param setOwner Pointer to the owner of the interface
* @param useThisQueue messageQueue to be used, can be set during
* initialize function as well.
*/
ActionHelper(HasActionsIF* setOwner, MessageQueueIF* useThisQueue);
virtual ~ActionHelper();
/**
* Function to be called from the owner with a new command message
*
* If the message is a valid action message the helper will use the
* executeAction function from HasActionsIF.
* If the message is invalid or the callback fails a message reply will be
* send to the sender of the message automatically.
*
* @param command Pointer to a command message received by the owner
* @return HasReturnvaluesIF::RETURN_OK if the message is a action message,
* CommandMessage::UNKNOW_COMMAND if this message ID is unkown
*/
ReturnValue_t handleActionMessage(CommandMessage* command);
/**
* Helper initialize function. Must be called before use of any other
* helper function
* @param queueToUse_ Pointer to the messageQueue to be used, optional
* if queue was set in constructor
* @return Returns RETURN_OK if successful
*/
ReturnValue_t initialize(MessageQueueIF* queueToUse_ = nullptr);
/**
* Function to be called from the owner to send a step message.
* Success or failure will be determined by the result value.
*
* @param step Number of steps already done
* @param reportTo The messageQueueId to report the step message to
* @param commandId ID of the executed command
* @param result Result of the execution
*/
void step(uint8_t step, MessageQueueId_t reportTo,
ActionId_t commandId,
ReturnValue_t result = HasReturnvaluesIF::RETURN_OK);
/**
* Function to be called by the owner to send a action completion message
*
* @param reportTo MessageQueueId_t to report the action completion message to
* @param commandId ID of the executed command
* @param result Result of the execution
*/
void finish(MessageQueueId_t reportTo, ActionId_t commandId,
ReturnValue_t result = HasReturnvaluesIF::RETURN_OK);
/**
* Function to be called by the owner if an action does report data.
* Takes a SerializeIF* pointer and serializes it into the IPC store.
* @param reportTo MessageQueueId_t to report the action completion
* message to
* @param replyId ID of the executed command
* @param data Pointer to the data
* @return Returns RETURN_OK if successful, otherwise failure code
*/
ReturnValue_t reportData(MessageQueueId_t reportTo, ActionId_t replyId,
SerializeIF* data, bool hideSender = false);
/**
* Function to be called by the owner if an action does report data.
* Takes the raw data and writes it into the IPC store.
* @param reportTo MessageQueueId_t to report the action completion
* message to
* @param replyId ID of the executed command
* @param data Pointer to the data
* @return Returns RETURN_OK if successful, otherwise failure code
*/
ReturnValue_t reportData(MessageQueueId_t reportTo, ActionId_t replyId,
const uint8_t* data, size_t dataSize, bool hideSender = false);
/**
* Function to setup the MessageQueueIF* of the helper. Can be used to
* set the MessageQueueIF* if message queue is unavailable at construction
* and initialize but must be setup before first call of other functions.
* @param queue Queue to be used by the helper
*/
void setQueueToUse(MessageQueueIF *queue);
protected:
//!< Increase of value of this per step
static const uint8_t STEP_OFFSET = 1;
HasActionsIF* owner;//!< Pointer to the owner
//! Queue to be used as response sender, has to be set in ctor or with
//! setQueueToUse
MessageQueueIF* queueToUse;
//! Pointer to an IPC Store, initialized during construction or
StorageManagerIF* ipcStore = nullptr;
/**
* Internal function called by handleActionMessage
* @param commandedBy MessageQueueID of Commander
* @param actionId ID of action to be done
* @param dataAddress Address of additional data in IPC Store
*/
virtual void prepareExecution(MessageQueueId_t commandedBy,
ActionId_t actionId, store_address_t dataAddress);
/**
* @brief Default implementation is empty.
*/
virtual void resetHelper();
};
#endif /* FSFW_ACTION_ACTIONHELPER_H_ */

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#include "ActionMessage.h"
#include "../objectmanager/ObjectManagerIF.h"
#include "../storagemanager/StorageManagerIF.h"
ActionMessage::ActionMessage() {
}
ActionMessage::~ActionMessage() {
}
void ActionMessage::setCommand(CommandMessage* message, ActionId_t fid,
store_address_t parameters) {
message->setCommand(EXECUTE_ACTION);
message->setParameter(fid);
message->setParameter2(parameters.raw);
}
ActionId_t ActionMessage::getActionId(const CommandMessage* message) {
return ActionId_t(message->getParameter());
}
store_address_t ActionMessage::getStoreId(const CommandMessage* message) {
store_address_t temp;
temp.raw = message->getParameter2();
return temp;
}
void ActionMessage::setStepReply(CommandMessage* message, ActionId_t fid, uint8_t step,
ReturnValue_t result) {
if (result == HasReturnvaluesIF::RETURN_OK) {
message->setCommand(STEP_SUCCESS);
} else {
message->setCommand(STEP_FAILED);
}
message->setParameter(fid);
message->setParameter2((step << 16) + result);
}
uint8_t ActionMessage::getStep(const CommandMessage* message) {
return uint8_t((message->getParameter2() >> 16) & 0xFF);
}
ReturnValue_t ActionMessage::getReturnCode(const CommandMessage* message) {
return message->getParameter2() & 0xFFFF;
}
void ActionMessage::setDataReply(CommandMessage* message, ActionId_t actionId,
store_address_t data) {
message->setCommand(DATA_REPLY);
message->setParameter(actionId);
message->setParameter2(data.raw);
}
void ActionMessage::setCompletionReply(CommandMessage* message,
ActionId_t fid, ReturnValue_t result) {
if (result == HasReturnvaluesIF::RETURN_OK) {
message->setCommand(COMPLETION_SUCCESS);
} else {
message->setCommand(COMPLETION_FAILED);
}
message->setParameter(fid);
message->setParameter2(result);
}
void ActionMessage::clear(CommandMessage* message) {
switch(message->getCommand()) {
case EXECUTE_ACTION:
case DATA_REPLY: {
StorageManagerIF *ipcStore = objectManager->get<StorageManagerIF>(
objects::IPC_STORE);
if (ipcStore != NULL) {
ipcStore->deleteData(getStoreId(message));
}
break;
}
default:
break;
}
}

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#ifndef FSFW_ACTION_ACTIONMESSAGE_H_
#define FSFW_ACTION_ACTIONMESSAGE_H_
#include "../ipc/CommandMessage.h"
#include "../objectmanager/ObjectManagerIF.h"
#include "../storagemanager/StorageManagerIF.h"
typedef uint32_t ActionId_t;
class ActionMessage {
private:
ActionMessage();
public:
static const uint8_t MESSAGE_ID = messagetypes::ACTION;
static const Command_t EXECUTE_ACTION = MAKE_COMMAND_ID(1);
static const Command_t STEP_SUCCESS = MAKE_COMMAND_ID(2);
static const Command_t STEP_FAILED = MAKE_COMMAND_ID(3);
static const Command_t DATA_REPLY = MAKE_COMMAND_ID(4);
static const Command_t COMPLETION_SUCCESS = MAKE_COMMAND_ID(5);
static const Command_t COMPLETION_FAILED = MAKE_COMMAND_ID(6);
virtual ~ActionMessage();
static void setCommand(CommandMessage* message, ActionId_t fid,
store_address_t parameters);
static ActionId_t getActionId(const CommandMessage* message );
static store_address_t getStoreId(const CommandMessage* message );
static void setStepReply(CommandMessage* message, ActionId_t fid,
uint8_t step, ReturnValue_t result = HasReturnvaluesIF::RETURN_OK);
static uint8_t getStep(const CommandMessage* message );
static ReturnValue_t getReturnCode(const CommandMessage* message );
static void setDataReply(CommandMessage* message, ActionId_t actionId,
store_address_t data);
static void setCompletionReply(CommandMessage* message, ActionId_t fid,
ReturnValue_t result = HasReturnvaluesIF::RETURN_OK);
static void clear(CommandMessage* message);
};
#endif /* FSFW_ACTION_ACTIONMESSAGE_H_ */

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#include "ActionMessage.h"
#include "CommandActionHelper.h"
#include "CommandsActionsIF.h"
#include "HasActionsIF.h"
#include "../objectmanager/ObjectManagerIF.h"
CommandActionHelper::CommandActionHelper(CommandsActionsIF *setOwner) :
owner(setOwner), queueToUse(NULL), ipcStore(
NULL), commandCount(0), lastTarget(0) {
}
CommandActionHelper::~CommandActionHelper() {
}
ReturnValue_t CommandActionHelper::commandAction(object_id_t commandTo,
ActionId_t actionId, SerializeIF *data) {
HasActionsIF *receiver = objectManager->get<HasActionsIF>(commandTo);
if (receiver == NULL) {
return CommandsActionsIF::OBJECT_HAS_NO_FUNCTIONS;
}
store_address_t storeId;
uint8_t *storePointer;
size_t maxSize = data->getSerializedSize();
ReturnValue_t result = ipcStore->getFreeElement(&storeId, maxSize,
&storePointer);
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
size_t size = 0;
result = data->serialize(&storePointer, &size, maxSize,
SerializeIF::Endianness::BIG);
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
return sendCommand(receiver->getCommandQueue(), actionId, storeId);
}
ReturnValue_t CommandActionHelper::commandAction(object_id_t commandTo,
ActionId_t actionId, const uint8_t *data, uint32_t size) {
// if (commandCount != 0) {
// return CommandsFunctionsIF::ALREADY_COMMANDING;
// }
HasActionsIF *receiver = objectManager->get<HasActionsIF>(commandTo);
if (receiver == NULL) {
return CommandsActionsIF::OBJECT_HAS_NO_FUNCTIONS;
}
store_address_t storeId;
ReturnValue_t result = ipcStore->addData(&storeId, data, size);
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
return sendCommand(receiver->getCommandQueue(), actionId, storeId);
}
ReturnValue_t CommandActionHelper::sendCommand(MessageQueueId_t queueId,
ActionId_t actionId, store_address_t storeId) {
CommandMessage command;
ActionMessage::setCommand(&command, actionId, storeId);
ReturnValue_t result = queueToUse->sendMessage(queueId, &command);
if (result != HasReturnvaluesIF::RETURN_OK) {
ipcStore->deleteData(storeId);
}
lastTarget = queueId;
commandCount++;
return result;
}
ReturnValue_t CommandActionHelper::initialize() {
ipcStore = objectManager->get<StorageManagerIF>(objects::IPC_STORE);
if (ipcStore == NULL) {
return HasReturnvaluesIF::RETURN_FAILED;
}
queueToUse = owner->getCommandQueuePtr();
if (queueToUse == NULL) {
return HasReturnvaluesIF::RETURN_FAILED;
}
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t CommandActionHelper::handleReply(CommandMessage *reply) {
if (reply->getSender() != lastTarget) {
return HasReturnvaluesIF::RETURN_FAILED;
}
switch (reply->getCommand()) {
case ActionMessage::COMPLETION_SUCCESS:
commandCount--;
owner->completionSuccessfulReceived(ActionMessage::getActionId(reply));
return HasReturnvaluesIF::RETURN_OK;
case ActionMessage::COMPLETION_FAILED:
commandCount--;
owner->completionFailedReceived(ActionMessage::getActionId(reply),
ActionMessage::getReturnCode(reply));
return HasReturnvaluesIF::RETURN_OK;
case ActionMessage::STEP_SUCCESS:
owner->stepSuccessfulReceived(ActionMessage::getActionId(reply),
ActionMessage::getStep(reply));
return HasReturnvaluesIF::RETURN_OK;
case ActionMessage::STEP_FAILED:
commandCount--;
owner->stepFailedReceived(ActionMessage::getActionId(reply),
ActionMessage::getStep(reply),
ActionMessage::getReturnCode(reply));
return HasReturnvaluesIF::RETURN_OK;
case ActionMessage::DATA_REPLY:
extractDataForOwner(ActionMessage::getActionId(reply),
ActionMessage::getStoreId(reply));
return HasReturnvaluesIF::RETURN_OK;
default:
return HasReturnvaluesIF::RETURN_FAILED;
}
}
uint8_t CommandActionHelper::getCommandCount() const {
return commandCount;
}
void CommandActionHelper::extractDataForOwner(ActionId_t actionId, store_address_t storeId) {
const uint8_t * data = NULL;
size_t size = 0;
ReturnValue_t result = ipcStore->getData(storeId, &data, &size);
if (result != HasReturnvaluesIF::RETURN_OK) {
return;
}
owner->dataReceived(actionId, data, size);
ipcStore->deleteData(storeId);
}

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#ifndef COMMANDACTIONHELPER_H_
#define COMMANDACTIONHELPER_H_
#include "ActionMessage.h"
#include "../objectmanager/ObjectManagerIF.h"
#include "../returnvalues/HasReturnvaluesIF.h"
#include "../serialize/SerializeIF.h"
#include "../storagemanager/StorageManagerIF.h"
#include "../ipc/MessageQueueIF.h"
class CommandsActionsIF;
class CommandActionHelper {
friend class CommandsActionsIF;
public:
CommandActionHelper(CommandsActionsIF* owner);
virtual ~CommandActionHelper();
ReturnValue_t commandAction(object_id_t commandTo,
ActionId_t actionId, const uint8_t* data, uint32_t size);
ReturnValue_t commandAction(object_id_t commandTo,
ActionId_t actionId, SerializeIF* data);
ReturnValue_t initialize();
ReturnValue_t handleReply(CommandMessage* reply);
uint8_t getCommandCount() const;
private:
CommandsActionsIF* owner;
MessageQueueIF* queueToUse;
StorageManagerIF* ipcStore;
uint8_t commandCount;
MessageQueueId_t lastTarget;
void extractDataForOwner(ActionId_t actionId, store_address_t storeId);
ReturnValue_t sendCommand(MessageQueueId_t queueId, ActionId_t actionId,
store_address_t storeId);
};
#endif /* COMMANDACTIONHELPER_H_ */

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#ifndef FSFW_ACTION_COMMANDSACTIONSIF_H_
#define FSFW_ACTION_COMMANDSACTIONSIF_H_
#include "CommandActionHelper.h"
#include "../returnvalues/HasReturnvaluesIF.h"
#include "../ipc/MessageQueueIF.h"
/**
* Interface to separate commanding actions of other objects.
* In next iteration, IF should be shortened to three calls:
* - dataReceived(data)
* - successReceived(id, step)
* - failureReceived(id, step, cause)
* or even
* - replyReceived(id, step, cause) (if cause == OK, it's a success).
*/
class CommandsActionsIF {
friend class CommandActionHelper;
public:
static const uint8_t INTERFACE_ID = CLASS_ID::COMMANDS_ACTIONS_IF;
static const ReturnValue_t OBJECT_HAS_NO_FUNCTIONS = MAKE_RETURN_CODE(1);
static const ReturnValue_t ALREADY_COMMANDING = MAKE_RETURN_CODE(2);
virtual ~CommandsActionsIF() {}
virtual MessageQueueIF* getCommandQueuePtr() = 0;
protected:
virtual void stepSuccessfulReceived(ActionId_t actionId, uint8_t step) = 0;
virtual void stepFailedReceived(ActionId_t actionId, uint8_t step,
ReturnValue_t returnCode) = 0;
virtual void dataReceived(ActionId_t actionId, const uint8_t* data,
uint32_t size) = 0;
virtual void completionSuccessfulReceived(ActionId_t actionId) = 0;
virtual void completionFailedReceived(ActionId_t actionId,
ReturnValue_t returnCode) = 0;
};
#endif /* FSFW_ACTION_COMMANDSACTIONSIF_H_ */

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#ifndef FSFW_ACTION_HASACTIONSIF_H_
#define FSFW_ACTION_HASACTIONSIF_H_
#include "ActionHelper.h"
#include "ActionMessage.h"
#include "SimpleActionHelper.h"
#include "../returnvalues/HasReturnvaluesIF.h"
#include "../ipc/MessageQueueIF.h"
/**
* @brief
* Interface for component which uses actions
*
* @details
* This interface is used to execute actions in the component. Actions, in the
* sense of this interface, are activities with a well-defined beginning and
* end in time. They may adjust sub-states of components, but are not supposed
* to change the main mode of operation, which is handled with the HasModesIF
* described below.
*
* The HasActionsIF allows components to define such actions and make them
* available for other components to use. Implementing the interface is
* straightforward: There’s a single executeAction call, which provides an
* identifier for the action to execute, as well as arbitrary parameters for
* input.
* Aside from direct, software-based actions, it is used in device handler
* components as an interface to forward commands to devices.
* Implementing components of the interface are supposed to check identifier
* (ID) and parameters and immediately start execution of the action.
* It is, however, not required to immediately finish execution.
* Instead, this may be deferred to a later point in time, at which the
* component needs to inform the caller about finished or failed execution.
*
* @ingroup interfaces
*/
class HasActionsIF {
public:
static const uint8_t INTERFACE_ID = CLASS_ID::HAS_ACTIONS_IF;
static const ReturnValue_t IS_BUSY = MAKE_RETURN_CODE(1);
static const ReturnValue_t INVALID_PARAMETERS = MAKE_RETURN_CODE(2);
static const ReturnValue_t EXECUTION_FINISHED = MAKE_RETURN_CODE(3);
static const ReturnValue_t INVALID_ACTION_ID = MAKE_RETURN_CODE(4);
virtual ~HasActionsIF() { }
/**
* Function to get the MessageQueueId_t of the implementing object
* @return MessageQueueId_t of the object
*/
virtual MessageQueueId_t getCommandQueue() const = 0;
/**
* Execute or initialize the execution of a certain function.
* The ActionHelpers will execute this function and behave differently
* depending on the returnvalue.
*
* @return
* -@c EXECUTION_FINISHED Finish reply will be generated
* -@c Not RETURN_OK Step failure reply will be generated
*/
virtual ReturnValue_t executeAction(ActionId_t actionId,
MessageQueueId_t commandedBy, const uint8_t* data, size_t size) = 0;
};
#endif /* FSFW_ACTION_HASACTIONSIF_H_ */

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#include "HasActionsIF.h"
#include "SimpleActionHelper.h"
SimpleActionHelper::SimpleActionHelper(HasActionsIF* setOwner,
MessageQueueIF* useThisQueue) :
ActionHelper(setOwner, useThisQueue), isExecuting(false) {
}
SimpleActionHelper::~SimpleActionHelper() {
}
void SimpleActionHelper::step(ReturnValue_t result) {
// STEP_OFFESET is subtracted to compensate for adding offset in base
// method, which is not necessary here.
ActionHelper::step(stepCount - STEP_OFFSET, lastCommander, lastAction,
result);
if (result != HasReturnvaluesIF::RETURN_OK) {
resetHelper();
}
}
void SimpleActionHelper::finish(ReturnValue_t result) {
ActionHelper::finish(lastCommander, lastAction, result);
resetHelper();
}
ReturnValue_t SimpleActionHelper::reportData(SerializeIF* data) {
return ActionHelper::reportData(lastCommander, lastAction, data);
}
void SimpleActionHelper::resetHelper() {
stepCount = 0;
isExecuting = false;
lastAction = 0;
lastCommander = 0;
}
void SimpleActionHelper::prepareExecution(MessageQueueId_t commandedBy,
ActionId_t actionId, store_address_t dataAddress) {
CommandMessage reply;
if (isExecuting) {
ipcStore->deleteData(dataAddress);
ActionMessage::setStepReply(&reply, actionId, 0,
HasActionsIF::IS_BUSY);
queueToUse->sendMessage(commandedBy, &reply);
}
const uint8_t* dataPtr = NULL;
size_t size = 0;
ReturnValue_t result = ipcStore->getData(dataAddress, &dataPtr, &size);
if (result != HasReturnvaluesIF::RETURN_OK) {
ActionMessage::setStepReply(&reply, actionId, 0, result);
queueToUse->sendMessage(commandedBy, &reply);
return;
}
lastCommander = commandedBy;
lastAction = actionId;
result = owner->executeAction(actionId, commandedBy, dataPtr, size);
ipcStore->deleteData(dataAddress);
switch (result) {
case HasReturnvaluesIF::RETURN_OK:
isExecuting = true;
stepCount++;
break;
case HasActionsIF::EXECUTION_FINISHED:
ActionMessage::setCompletionReply(&reply, actionId,
HasReturnvaluesIF::RETURN_OK);
queueToUse->sendMessage(commandedBy, &reply);
break;
default:
ActionMessage::setStepReply(&reply, actionId, 0, result);
queueToUse->sendMessage(commandedBy, &reply);
break;
}
}

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#ifndef FSFW_ACTION_SIMPLEACTIONHELPER_H_
#define FSFW_ACTION_SIMPLEACTIONHELPER_H_
#include "ActionHelper.h"
/**
* @brief This is an action helper which is only able to service one action
* at a time but remembers last commander and last action which
* simplifies usage
*/
class SimpleActionHelper: public ActionHelper {
public:
SimpleActionHelper(HasActionsIF* setOwner, MessageQueueIF* useThisQueue);
virtual ~SimpleActionHelper();
void step(ReturnValue_t result = HasReturnvaluesIF::RETURN_OK);
void finish(ReturnValue_t result = HasReturnvaluesIF::RETURN_OK);
ReturnValue_t reportData(SerializeIF* data);
protected:
void prepareExecution(MessageQueueId_t commandedBy, ActionId_t actionId,
store_address_t dataAddress);
virtual void resetHelper();
private:
bool isExecuting;
MessageQueueId_t lastCommander = MessageQueueIF::NO_QUEUE;
ActionId_t lastAction = 0;
uint8_t stepCount = 0;
};
#endif /* SIMPLEACTIONHELPER_H_ */

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#ifndef FSFW_CONTAINER_ARRAYLIST_H_
#define FSFW_CONTAINER_ARRAYLIST_H_
#include "../returnvalues/HasReturnvaluesIF.h"
#include "../serialize/SerializeAdapter.h"
#include "../serialize/SerializeIF.h"
/**
* @brief A List that stores its values in an array.
* @details
* The underlying storage is an array that can be allocated by the class
* itself or supplied via ctor.
*
* @ingroup container
*/
template<typename T, typename count_t = uint8_t>
class ArrayList {
template<typename U, typename count> friend class SerialArrayListAdapter;
public:
static const uint8_t INTERFACE_ID = CLASS_ID::ARRAY_LIST;
static const ReturnValue_t FULL = MAKE_RETURN_CODE(0x01);
/**
* This is the allocating constructor.
* It allocates an array of the specified size.
* @param maxSize
*/
ArrayList(count_t maxSize) :
size(0), maxSize_(maxSize), allocated(true) {
entries = new T[maxSize];
}
/**
* This is the non-allocating constructor
*
* It expects a pointer to an array of a certain size and initializes
* itself to it.
*
* @param storage the array to use as backend
* @param maxSize size of storage
* @param size size of data already present in storage
*/
ArrayList(T *storage, count_t maxSize, count_t size = 0) :
size(size), entries(storage), maxSize_(maxSize), allocated(false) {
}
/**
* Copying is forbiden by declaring copy ctor and copy assignment deleted
* It is too ambigous in this case.
* (Allocate a new backend? Use the same? What to do in an modifying call?)
*/
ArrayList(const ArrayList& other) = delete;
const ArrayList& operator=(const ArrayList& other) = delete;
/**
* Number of Elements stored in this List
*/
count_t size;
/**
* Destructor, if the allocating constructor was used, it deletes the array.
*/
virtual ~ArrayList() {
if (allocated) {
delete[] entries;
}
}
/**
* An Iterator to go trough an ArrayList
*
* It stores a pointer to an element and increments the
* pointer when incremented itself.
*/
class Iterator {
public:
/**
* Empty ctor, points to NULL
*/
Iterator(): value(0) {}
/**
* Initializes the Iterator to point to an element
*
* @param initialize
*/
Iterator(T *initialize) {
value = initialize;
}
/**
* The current element the iterator points to
*/
T *value;
Iterator& operator++() {
value++;
return *this;
}
Iterator operator++(int) {
Iterator tmp(*this);
operator++();
return tmp;
}
Iterator& operator--() {
value--;
return *this;
}
Iterator operator--(int) {
Iterator tmp(*this);
operator--();
return tmp;
}
T& operator*() {
return *value;
}
const T& operator*() const {
return *value;
}
T *operator->() {
return value;
}
const T *operator->() const {
return value;
}
};
friend bool operator==(const ArrayList::Iterator& lhs,
const ArrayList::Iterator& rhs) {
return (lhs.value == rhs.value);
}
friend bool operator!=(const ArrayList::Iterator& lhs,
const ArrayList::Iterator& rhs) {
return not (lhs.value == rhs.value);
}
/**
* Iterator pointing to the first stored elmement
*
* @return Iterator to the first element
*/
Iterator begin() const {
return Iterator(&entries[0]);
}
/**
* returns an Iterator pointing to the element after the last stored entry
*
* @return Iterator to the element after the last entry
*/
Iterator end() const {
return Iterator(&entries[size]);
}
T & operator[](count_t i) const {
return entries[i];
}
/**
* The first element
*
* @return pointer to the first stored element
*/
T *front() {
return entries;
}
/**
* The last element
*
* does not return a valid pointer if called on an empty list.
*
* @return pointer to the last stored element
*/
T *back() {
return &entries[size - 1];
//Alternative solution
//return const_cast<T*>(static_cast<const T*>(*this).back());
}
const T* back() const{
return &entries[size-1];
}
/**
* The maximum number of elements this List can contain
*
* @return maximum number of elements
*/
size_t maxSize() const {
return this->maxSize_;
}
/**
* Insert a new element into the list.
*
* The new element is inserted after the last stored element.
*
* @param entry
* @return
* -@c FULL if the List is full
* -@c RETURN_OK else
*/
ReturnValue_t insert(T entry) {
if (size >= maxSize_) {
return FULL;
}
entries[size] = entry;
++size;
return HasReturnvaluesIF::RETURN_OK;
}
/**
* clear the List
*
* This does not actually clear all entries, it only sets the size to 0.
*/
void clear() {
size = 0;
}
count_t remaining() {
return (maxSize_ - size);
}
protected:
/**
* pointer to the array in which the entries are stored
*/
T *entries;
/**
* remembering the maximum size
*/
size_t maxSize_;
/**
* true if the array was allocated and needs to be deleted in the destructor.
*/
bool allocated;
};
#endif /* FSFW_CONTAINER_ARRAYLIST_H_ */

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#ifndef FRAMEWORK_CONTAINER_BINARYTREE_H_
#define FRAMEWORK_CONTAINER_BINARYTREE_H_
#include <stddef.h>
#include <stdint.h>
#include <map>
template<typename Tp>
class BinaryNode {
public:
BinaryNode(Tp* setValue) :
value(setValue), left(NULL), right(NULL), parent(NULL) {
}
Tp *value;
BinaryNode* left;
BinaryNode* right;
BinaryNode* parent;
};
template<typename Tp>
class ExplicitNodeIterator {
public:
typedef ExplicitNodeIterator<Tp> _Self;
typedef BinaryNode<Tp> _Node;
typedef Tp value_type;
typedef Tp* pointer;
typedef Tp& reference;
ExplicitNodeIterator() :
element(NULL) {
}
ExplicitNodeIterator(_Node* node) :
element(node) {
}
BinaryNode<Tp>* element;
_Self up() {
return _Self(element->parent);
}
_Self left() {
if (element != NULL) {
return _Self(element->left);
} else {
return _Self(NULL);
}
}
_Self right() {
if (element != NULL) {
return _Self(element->right);
} else {
return _Self(NULL);
}
}
bool operator==(const _Self& __x) const {
return element == __x.element;
}