fsfw/storagemanager/PoolManager.h

87 lines
3.0 KiB
C++

/**
* @file PoolManager
*
* @date 02.02.2012
* @author Bastian Baetz
*
* @brief This file contains the definition of the PoolManager class.
*/
#ifndef POOLMANAGER_H_
#define POOLMANAGER_H_
#include <framework/storagemanager/LocalPool.h>
#include <framework/ipc/MutexHelper.h>
/**
* @brief The PoolManager class provides an intermediate data storage with
* a fixed pool size policy for inter-process communication.
* \details Uses local pool, but is thread-safe.
*/
template <uint8_t NUMBER_OF_POOLS = 5>
class PoolManager : public LocalPool<NUMBER_OF_POOLS> {
protected:
/**
* Overwritten for thread safety.
* Locks during execution.
*/
virtual ReturnValue_t reserveSpace(const uint32_t size, store_address_t* address, bool ignoreFault);
/**
* \brief The mutex is created in the constructor and makes access mutual exclusive.
* \details Locking and unlocking is done during searching for free slots and deleting existing slots.
*/
MutexIF* mutex;
public:
PoolManager( object_id_t setObjectId, const uint16_t element_sizes[NUMBER_OF_POOLS], const uint16_t n_elements[NUMBER_OF_POOLS] );
/**
* @brief In the PoolManager's destructor all allocated memory is freed.
*/
virtual ~PoolManager( void );
/**
* Overwritten for thread safety.
*/
virtual ReturnValue_t deleteData(store_address_t);
virtual ReturnValue_t deleteData(uint8_t* buffer, uint32_t size, store_address_t* storeId = NULL);
};
template<uint8_t NUMBER_OF_POOLS>
inline ReturnValue_t PoolManager<NUMBER_OF_POOLS>::reserveSpace(const uint32_t size, store_address_t* address, bool ignoreFault) {
MutexHelper mutexHelper(mutex,MutexIF::NO_TIMEOUT);
ReturnValue_t status = LocalPool<NUMBER_OF_POOLS>::reserveSpace(size,address,ignoreFault);
return status;
}
template<uint8_t NUMBER_OF_POOLS>
inline PoolManager<NUMBER_OF_POOLS>::PoolManager(object_id_t setObjectId,
const uint16_t element_sizes[NUMBER_OF_POOLS],
const uint16_t n_elements[NUMBER_OF_POOLS]) : LocalPool<NUMBER_OF_POOLS>(setObjectId, element_sizes, n_elements, true) {
mutex = MutexFactory::instance()->createMutex();
}
template<uint8_t NUMBER_OF_POOLS>
inline PoolManager<NUMBER_OF_POOLS>::~PoolManager(void) {
MutexFactory::instance()->deleteMutex(mutex);
}
template<uint8_t NUMBER_OF_POOLS>
inline ReturnValue_t PoolManager<NUMBER_OF_POOLS>::deleteData(
store_address_t packet_id) {
// debug << "PoolManager( " << translateObject(getObjectId()) << " )::deleteData from store " << packet_id.pool_index << ". id is " << packet_id.packet_index << std::endl;
MutexHelper mutexHelper(mutex,MutexIF::NO_TIMEOUT);
ReturnValue_t status = LocalPool<NUMBER_OF_POOLS>::deleteData(packet_id);
return status;
}
template<uint8_t NUMBER_OF_POOLS>
inline ReturnValue_t PoolManager<NUMBER_OF_POOLS>::deleteData(uint8_t* buffer, uint32_t size,
store_address_t* storeId) {
MutexHelper mutexHelper(mutex,MutexIF::NO_TIMEOUT);
ReturnValue_t status = LocalPool<NUMBER_OF_POOLS>::deleteData(buffer, size, storeId);
return status;
}
#endif /* POOLMANAGER_H_ */