new store accessor classes

implementation of local pool and pool manager extracted into
tpp file.

store_address_t definition extracted in separate file to avoid circular
includes by using forward declarations
This commit is contained in:
2020-05-29 16:37:46 +02:00
parent cb14ec15b5
commit 8af5a32f1d
8 changed files with 868 additions and 442 deletions

View File

@ -3,56 +3,14 @@
#include <framework/events/Event.h>
#include <framework/returnvalues/HasReturnvaluesIF.h>
#include <stddef.h>
#include <framework/storagemanager/StorageAccessor.h>
#include <framework/storagemanager/storeAddress.h>
#include <utility>
#include <cstddef>
/**
* This union defines the type that identifies where a data packet is stored in the store.
* It comprises of a raw part to read it as raw value and a structured part to use it in
* pool-like stores.
*/
union store_address_t {
/**
* Default Constructor, initializing to INVALID_ADDRESS
*/
store_address_t():raw(0xFFFFFFFF){}
/**
* Constructor to create an address object using the raw address
*
* @param rawAddress
*/
store_address_t(uint32_t rawAddress):raw(rawAddress){}
using AccessorPair = std::pair<ReturnValue_t, StorageAccessor>;
using ConstAccessorPair = std::pair<ReturnValue_t, ConstStorageAccessor>;
/**
* Constructor to create an address object using pool
* and packet indices
*
* @param poolIndex
* @param packetIndex
*/
store_address_t(uint16_t poolIndex, uint16_t packetIndex):
pool_index(poolIndex),packet_index(packetIndex){}
/**
* A structure with two elements to access the store address pool-like.
*/
struct {
/**
* The index in which pool the packet lies.
*/
uint16_t pool_index;
/**
* The position in the chosen pool.
*/
uint16_t packet_index;
};
/**
* Alternative access to the raw value.
*/
uint32_t raw;
bool operator==(const store_address_t& other) const {
return raw == other.raw;
}
};
/**
* @brief This class provides an interface for intermediate data storage.
@ -75,6 +33,7 @@ public:
static const ReturnValue_t ILLEGAL_STORAGE_ID = MAKE_RETURN_CODE(3); //!< This return code indicates that data was requested with an illegal storage ID.
static const ReturnValue_t DATA_DOES_NOT_EXIST = MAKE_RETURN_CODE(4); //!< This return code indicates that the requested ID was valid, but no data is stored there.
static const ReturnValue_t ILLEGAL_ADDRESS = MAKE_RETURN_CODE(5);
static const ReturnValue_t POOL_TOO_LARGE = MAKE_RETURN_CODE(6); //!< Pool size too large on initialization.
static const uint8_t SUBSYSTEM_ID = SUBSYSTEM_ID::OBSW;
static const Event GET_DATA_FAILED = MAKE_EVENT(0, SEVERITY::LOW);
@ -98,7 +57,8 @@ public:
* @li RETURN_FAILED if data could not be added.
* storageId is unchanged then.
*/
virtual ReturnValue_t addData(store_address_t* storageId, const uint8_t * data, uint32_t size, bool ignoreFault = false) = 0;
virtual ReturnValue_t addData(store_address_t* storageId,
const uint8_t * data, size_t size, bool ignoreFault = false) = 0;
/**
* @brief With deleteData, the storageManager frees the memory region
* identified by packet_id.
@ -109,14 +69,37 @@ public:
*/
virtual ReturnValue_t deleteData(store_address_t packet_id) = 0;
/**
* @brief Another deleteData which uses the pointer and size of the stored data to delete the content.
* @brief Another deleteData which uses the pointer and size of the
* stored data to delete the content.
* @param buffer Pointer to the data.
* @param size Size of data to be stored.
* @param storeId Store id of the deleted element (optional)
* @return @li RETURN_OK on success.
* @li failure code if deletion did not work
*/
virtual ReturnValue_t deleteData(uint8_t* buffer, uint32_t size, store_address_t* storeId = NULL) = 0;
virtual ReturnValue_t deleteData(uint8_t* buffer, size_t size,
store_address_t* storeId = nullptr) = 0;
/**
* @brief Access the data by supplying a store ID.
* @details
* A pair consisting of the retrieval result and an instance of a
* ConstStorageAccessor class is returned
* @param storeId
* @return Pair of return value and a ConstStorageAccessor instance
*/
virtual ConstAccessorPair getData(store_address_t storeId) = 0;
/**
* @brief Access the data by supplying a store ID and a helper
* instance
* @param storeId
* @param constAccessor Wrapper function to access store data.
* @return
*/
virtual ReturnValue_t getData(store_address_t storeId,
ConstStorageAccessor& constAccessor) = 0;
/**
* @brief getData returns an address to data and the size of the data
* for a given packet_id.
@ -129,12 +112,34 @@ public:
* (e.g. an illegal packet_id was passed).
*/
virtual ReturnValue_t getData(store_address_t packet_id,
const uint8_t** packet_ptr, uint32_t* size) = 0;
const uint8_t** packet_ptr, size_t* size) = 0;
/**
* Same as above, but not const and therefore modifiable.
* Modify data by supplying a store ID
* @param storeId
* @return Pair of return value and StorageAccessor helper
*/
virtual AccessorPair modifyData(store_address_t storeId) = 0;
/**
* Modify data by supplying a store ID and a StorageAccessor helper instance.
* @param storeId
* @param accessor Helper class to access the modifiable data.
* @return
*/
virtual ReturnValue_t modifyData(store_address_t storeId,
StorageAccessor& accessor) = 0;
/**
* Get pointer and size of modifiable data by supplying the storeId
* @param packet_id
* @param packet_ptr [out] Pointer to pointer of data to set
* @param size [out] Pointer to size to set
* @return
*/
virtual ReturnValue_t modifyData(store_address_t packet_id,
uint8_t** packet_ptr, uint32_t* size) = 0;
uint8_t** packet_ptr, size_t* size) = 0;
/**
* This method reserves an element of \c size.
*
@ -148,13 +153,14 @@ public:
* @li RETURN_FAILED if data could not be added.
* storageId is unchanged then.
*/
virtual ReturnValue_t getFreeElement(store_address_t* storageId, const uint32_t size, uint8_t** p_data, bool ignoreFault = false ) = 0;
virtual ReturnValue_t getFreeElement(store_address_t* storageId,
const size_t size, uint8_t** p_data, bool ignoreFault = false ) = 0;
/**
* Clears the whole store.
* Use with care!
*/
virtual void clearStore() = 0;
};
#endif /* STORAGEMANAGERIF_H_ */