118 lines
4.6 KiB
C++
118 lines
4.6 KiB
C++
#ifndef TMTCPACKET_PUS_TCPACKETSTORED_H_
|
|
#define TMTCPACKET_PUS_TCPACKETSTORED_H_
|
|
|
|
#include "TcPacketBase.h"
|
|
#include "../../storagemanager/StorageManagerIF.h"
|
|
|
|
/**
|
|
* This class generates a ECSS PUS Telecommand packet within a given
|
|
* intermediate storage.
|
|
* As most packets are passed between tasks with the help of a storage
|
|
* anyway, it seems logical to create a Packet-In-Storage access class
|
|
* which saves the user almost all storage handling operation.
|
|
* Packets can both be newly created with the class and be "linked" to
|
|
* packets in a store with the help of a storeAddress.
|
|
* @ingroup tmtcpackets
|
|
*/
|
|
class TcPacketStored : public TcPacketBase {
|
|
public:
|
|
/**
|
|
* This is a default constructor which does not set the data pointer.
|
|
* However, it does try to set the packet store.
|
|
*/
|
|
TcPacketStored();
|
|
/**
|
|
* With this constructor, the class instance is linked to an existing
|
|
* packet in the packet store.
|
|
* The packet content is neither checked nor changed with this call. If
|
|
* the packet could not be found, the data pointer is set to NULL.
|
|
*/
|
|
TcPacketStored( store_address_t setAddress );
|
|
/**
|
|
* With this constructor, new space is allocated in the packet store and
|
|
* a new PUS Telecommand Packet is created there.
|
|
* Packet Application Data passed in data is copied into the packet.
|
|
* @param apid Sets the packet's APID field.
|
|
* @param service Sets the packet's Service ID field.
|
|
* This specifies the destination service.
|
|
* @param subservice Sets the packet's Service Subtype field.
|
|
* This specifies the destination sub-service.
|
|
* @param sequence_count Sets the packet's Source Sequence Count field.
|
|
* @param data The data to be copied to the Application Data Field.
|
|
* @param size The amount of data to be copied.
|
|
* @param ack Set's the packet's Ack field, which specifies
|
|
* number of verification packets returned
|
|
* for this command.
|
|
*/
|
|
TcPacketStored(uint16_t apid, uint8_t service, uint8_t subservice,
|
|
uint8_t sequence_count = 0, const uint8_t* data = nullptr,
|
|
size_t size = 0, uint8_t ack = TcPacketBase::ACK_ALL);
|
|
/**
|
|
* Another constructor to create a TcPacket from a raw packet stream.
|
|
* Takes the data and adds it unchecked to the TcStore.
|
|
* @param data Pointer to the complete TC Space Packet.
|
|
* @param Size size of the packet.
|
|
*/
|
|
TcPacketStored( const uint8_t* data, uint32_t size);
|
|
|
|
/**
|
|
* Getter function for the raw data.
|
|
* @param dataPtr [out] Pointer to the data pointer to set
|
|
* @param dataSize [out] Address of size to set.
|
|
* @return -@c RETURN_OK if data was retrieved successfully.
|
|
*/
|
|
ReturnValue_t getData(const uint8_t ** dataPtr,
|
|
size_t* dataSize);
|
|
/**
|
|
* This is a getter for the current store address of the packet.
|
|
* @return The current store address. The (raw) value is
|
|
* @c StorageManagerIF::INVALID_ADDRESS if the packet is not linked.
|
|
*/
|
|
store_address_t getStoreAddress();
|
|
/**
|
|
* With this call, the packet is deleted.
|
|
* It removes itself from the store and sets its data pointer to NULL.
|
|
* @return returncode from deleting the data.
|
|
*/
|
|
ReturnValue_t deletePacket();
|
|
/**
|
|
* With this call, a packet can be linked to another store. This is useful
|
|
* if the packet is a class member and used for more than one packet.
|
|
* @param setAddress The new packet id to link to.
|
|
*/
|
|
void setStoreAddress( store_address_t setAddress );
|
|
/**
|
|
* This method performs a size check.
|
|
* It reads the stored size and compares it with the size entered in the
|
|
* packet header. This class is the optimal place for such a check as it
|
|
* has access to both the header data and the store.
|
|
* @return true if size is correct, false if packet is not registered in
|
|
* store or size is incorrect.
|
|
*/
|
|
bool isSizeCorrect();
|
|
|
|
private:
|
|
/**
|
|
* This is a pointer to the store all instances of the class use.
|
|
* If the store is not yet set (i.e. @c store is NULL), every constructor
|
|
* call tries to set it and throws an error message in case of failures.
|
|
* The default store is objects::TC_STORE.
|
|
*/
|
|
static StorageManagerIF* store;
|
|
/**
|
|
* The address where the packet data of the object instance is stored.
|
|
*/
|
|
store_address_t storeAddress;
|
|
/**
|
|
* A helper method to check if a store is assigned to the class.
|
|
* If not, the method tries to retrieve the store from the global
|
|
* ObjectManager.
|
|
* @return @li @c true if the store is linked or could be created.
|
|
* @li @c false otherwise.
|
|
*/
|
|
bool checkAndSetStore();
|
|
};
|
|
|
|
|
|
#endif /* TMTCPACKET_PUS_TCPACKETSTORED_H_ */
|