storage accessor mutex lock removed
This commit is contained in:
parent
e5c46c5ec1
commit
1946af64af
@ -1,154 +1,130 @@
|
||||
//#include <framework/storagemanager/StorageAccessor.h>
|
||||
//
|
||||
//ConstStorageAccessor::ConstStorageAccessor(store_address_t storeId): storeId(storeId) {}
|
||||
//
|
||||
//ConstStorageAccessor::~ConstStorageAccessor() {
|
||||
// if(deleteData and store != nullptr) {
|
||||
// sif::debug << "deleting store data" << std::endl;
|
||||
// store->deleteDataNonLocking(storeId);
|
||||
// }
|
||||
// if(mutexLock != nullptr) {
|
||||
// sif::debug << "unlocking mutex lock" << std::endl;
|
||||
// mutexLock.reset();
|
||||
// }
|
||||
//}
|
||||
//
|
||||
//ConstStorageAccessor& ConstStorageAccessor::operator=(
|
||||
// ConstStorageAccessor&& other) {
|
||||
// constDataPointer = other.constDataPointer;
|
||||
// storeId = other.storeId;
|
||||
// store = other.store;
|
||||
// size_ = other.size_;
|
||||
// deleteData = other.deleteData;
|
||||
// this->store = other.store;
|
||||
// // Transfer ownership of the lock.
|
||||
// mutexLock = std::move(other.mutexLock);
|
||||
// // This prevents double deletion of the resource
|
||||
// other.mutexLock = nullptr;
|
||||
// // This prevent premature deletion
|
||||
// other.store = nullptr;
|
||||
// return *this;
|
||||
//}
|
||||
//
|
||||
//StorageAccessor::StorageAccessor(store_address_t storeId):
|
||||
// ConstStorageAccessor(storeId) {
|
||||
//}
|
||||
//
|
||||
//StorageAccessor& StorageAccessor::operator =(
|
||||
// StorageAccessor&& other) {
|
||||
// // Call the parent move assignment and also assign own member.
|
||||
// dataPointer = other.dataPointer;
|
||||
// StorageAccessor::operator=(std::move(other));
|
||||
// return * this;
|
||||
//}
|
||||
//
|
||||
//// Call the parent move ctor and also transfer own member.
|
||||
//StorageAccessor::StorageAccessor(StorageAccessor&& other):
|
||||
// ConstStorageAccessor(std::move(other)), dataPointer(other.dataPointer) {
|
||||
//}
|
||||
//
|
||||
//ConstStorageAccessor::ConstStorageAccessor(ConstStorageAccessor&& other):
|
||||
// constDataPointer(other.constDataPointer), storeId(other.storeId),
|
||||
// size_(other.size_), store(other.store), deleteData(other.deleteData),
|
||||
// internalState(other.internalState) {
|
||||
// // Transfer ownership of the lock.
|
||||
// mutexLock = std::move(other.mutexLock);
|
||||
// // This prevents double deletion of the resource. Not strictly necessary,
|
||||
// // from the testing I have conducted so far but I am not familiar enough
|
||||
// // with move semantics so I will just set the other lock to nullptr for now.
|
||||
// other.mutexLock = nullptr;
|
||||
// // This prevent premature deletion
|
||||
// other.store = nullptr;
|
||||
//}
|
||||
//
|
||||
//const uint8_t* ConstStorageAccessor::data() const {
|
||||
// return constDataPointer;
|
||||
//}
|
||||
//
|
||||
//size_t ConstStorageAccessor::size() const {
|
||||
// if(internalState == AccessState::UNINIT) {
|
||||
// sif::warning << "StorageAccessor: Not initialized!" << std::endl;
|
||||
// }
|
||||
// return size_;
|
||||
//}
|
||||
//
|
||||
//void ConstStorageAccessor::getDataCopy(uint8_t *pointer) {
|
||||
// if(internalState == AccessState::UNINIT) {
|
||||
// sif::warning << "StorageAccessor: Not initialized!" << std::endl;
|
||||
// return;
|
||||
// }
|
||||
// std::copy(constDataPointer, constDataPointer + size_, pointer);
|
||||
//}
|
||||
//
|
||||
//void ConstStorageAccessor::release() {
|
||||
// deleteData = false;
|
||||
//}
|
||||
//
|
||||
//ReturnValue_t ConstStorageAccessor::lock(MutexIF* mutex, uint32_t mutexTimeout) {
|
||||
// if(mutexLock == nullptr) {
|
||||
// mutexLock = std::unique_ptr<MutexHelper>(new MutexHelper(mutex, mutexTimeout));
|
||||
// return mutexLock.get()->getResult();
|
||||
// }
|
||||
// else {
|
||||
// sif::warning << "StorageAccessor: Attempted to lock twice. Check code!" << std::endl;
|
||||
// return HasReturnvaluesIF::RETURN_FAILED;
|
||||
// }
|
||||
//}
|
||||
//
|
||||
//void ConstStorageAccessor::unlock() {
|
||||
// if(mutexLock != nullptr) {
|
||||
// mutexLock.reset();
|
||||
// }
|
||||
//}
|
||||
//
|
||||
//store_address_t ConstStorageAccessor::getId() const {
|
||||
// return storeId;
|
||||
//}
|
||||
//
|
||||
//void ConstStorageAccessor::print() const {
|
||||
// if(internalState == AccessState::UNINIT) {
|
||||
// sif::warning << "StorageAccessor: Not initialized!" << std::endl;
|
||||
// return;
|
||||
// }
|
||||
// sif::info << "StorageAccessor: Printing data: [";
|
||||
// for(uint16_t iPool = 0; iPool < size_; iPool++) {
|
||||
// sif::info << std::hex << (int)constDataPointer[iPool];
|
||||
// if(iPool < size_ - 1){
|
||||
// sif::info << " , ";
|
||||
// }
|
||||
// }
|
||||
// sif::info << " ] " << std::endl;
|
||||
//}
|
||||
//
|
||||
//void ConstStorageAccessor::assignStore(StorageManagerIF* store) {
|
||||
// internalState = AccessState::READ;
|
||||
// this->store = store;
|
||||
//}
|
||||
//
|
||||
//
|
||||
//uint8_t* StorageAccessor::data() {
|
||||
// if(internalState == AccessState::UNINIT) {
|
||||
// sif::warning << "StorageAccessor: Not initialized!" << std::endl;
|
||||
// }
|
||||
// return dataPointer;
|
||||
//}
|
||||
//
|
||||
//ReturnValue_t StorageAccessor::write(uint8_t *data, size_t size,
|
||||
// uint16_t offset) {
|
||||
// if(internalState == AccessState::UNINIT) {
|
||||
// sif::warning << "StorageAccessor: Not initialized!" << std::endl;
|
||||
// return HasReturnvaluesIF::RETURN_FAILED;
|
||||
// }
|
||||
// if(offset + size > size_) {
|
||||
// sif::error << "StorageAccessor: Data too large for pool entry!" << std::endl;
|
||||
// return HasReturnvaluesIF::RETURN_FAILED;
|
||||
// }
|
||||
// std::copy(data, data + size, dataPointer);
|
||||
// return HasReturnvaluesIF::RETURN_OK;
|
||||
//}
|
||||
//
|
||||
//void StorageAccessor::assignConstPointer() {
|
||||
// constDataPointer = dataPointer;
|
||||
//}
|
||||
//
|
||||
//
|
||||
#include <framework/storagemanager/StorageAccessor.h>
|
||||
|
||||
ConstStorageAccessor::ConstStorageAccessor(store_address_t storeId):
|
||||
storeId(storeId) {}
|
||||
|
||||
ConstStorageAccessor::~ConstStorageAccessor() {
|
||||
if(deleteData and store != nullptr) {
|
||||
sif::debug << "deleting store data" << std::endl;
|
||||
store->deleteData(storeId);
|
||||
}
|
||||
}
|
||||
|
||||
ConstStorageAccessor& ConstStorageAccessor::operator=(
|
||||
ConstStorageAccessor&& other) {
|
||||
constDataPointer = other.constDataPointer;
|
||||
storeId = other.storeId;
|
||||
store = other.store;
|
||||
size_ = other.size_;
|
||||
deleteData = other.deleteData;
|
||||
this->store = other.store;
|
||||
// This prevents premature deletion
|
||||
other.store = nullptr;
|
||||
return *this;
|
||||
}
|
||||
|
||||
StorageAccessor::StorageAccessor(store_address_t storeId):
|
||||
ConstStorageAccessor(storeId) {
|
||||
}
|
||||
|
||||
StorageAccessor& StorageAccessor::operator =(
|
||||
StorageAccessor&& other) {
|
||||
// Call the parent move assignment and also assign own member.
|
||||
dataPointer = other.dataPointer;
|
||||
StorageAccessor::operator=(std::move(other));
|
||||
return * this;
|
||||
}
|
||||
|
||||
// Call the parent move ctor and also transfer own member.
|
||||
StorageAccessor::StorageAccessor(StorageAccessor&& other):
|
||||
ConstStorageAccessor(std::move(other)), dataPointer(other.dataPointer) {
|
||||
}
|
||||
|
||||
ConstStorageAccessor::ConstStorageAccessor(ConstStorageAccessor&& other):
|
||||
constDataPointer(other.constDataPointer), storeId(other.storeId),
|
||||
size_(other.size_), store(other.store), deleteData(other.deleteData),
|
||||
internalState(other.internalState) {
|
||||
// This prevent premature deletion
|
||||
other.store = nullptr;
|
||||
}
|
||||
|
||||
const uint8_t* ConstStorageAccessor::data() const {
|
||||
return constDataPointer;
|
||||
}
|
||||
|
||||
size_t ConstStorageAccessor::size() const {
|
||||
if(internalState == AccessState::UNINIT) {
|
||||
sif::warning << "StorageAccessor: Not initialized!" << std::endl;
|
||||
}
|
||||
return size_;
|
||||
}
|
||||
|
||||
ReturnValue_t ConstStorageAccessor::getDataCopy(uint8_t *pointer,
|
||||
size_t maxSize) {
|
||||
if(internalState == AccessState::UNINIT) {
|
||||
sif::warning << "StorageAccessor: Not initialized!" << std::endl;
|
||||
return HasReturnvaluesIF::RETURN_FAILED;
|
||||
}
|
||||
if(size_ > maxSize) {
|
||||
sif::error << "StorageAccessor: Supplied buffer not large enough" << std::endl;
|
||||
return HasReturnvaluesIF::RETURN_FAILED;
|
||||
}
|
||||
std::copy(constDataPointer, constDataPointer + size_, pointer);
|
||||
return HasReturnvaluesIF::RETURN_OK;
|
||||
}
|
||||
|
||||
void ConstStorageAccessor::release() {
|
||||
deleteData = false;
|
||||
}
|
||||
|
||||
store_address_t ConstStorageAccessor::getId() const {
|
||||
return storeId;
|
||||
}
|
||||
|
||||
void ConstStorageAccessor::print() const {
|
||||
if(internalState == AccessState::UNINIT) {
|
||||
sif::warning << "StorageAccessor: Not initialized!" << std::endl;
|
||||
return;
|
||||
}
|
||||
sif::info << "StorageAccessor: Printing data: [";
|
||||
for(uint16_t iPool = 0; iPool < size_; iPool++) {
|
||||
sif::info << std::hex << (int)constDataPointer[iPool];
|
||||
if(iPool < size_ - 1){
|
||||
sif::info << " , ";
|
||||
}
|
||||
}
|
||||
sif::info << " ] " << std::endl;
|
||||
}
|
||||
|
||||
void ConstStorageAccessor::assignStore(StorageManagerIF* store) {
|
||||
internalState = AccessState::READ;
|
||||
this->store = store;
|
||||
}
|
||||
|
||||
|
||||
uint8_t* StorageAccessor::data() {
|
||||
if(internalState == AccessState::UNINIT) {
|
||||
sif::warning << "StorageAccessor: Not initialized!" << std::endl;
|
||||
}
|
||||
return dataPointer;
|
||||
}
|
||||
|
||||
ReturnValue_t StorageAccessor::write(uint8_t *data, size_t size,
|
||||
uint16_t offset) {
|
||||
if(internalState == AccessState::UNINIT) {
|
||||
sif::warning << "StorageAccessor: Not initialized!" << std::endl;
|
||||
return HasReturnvaluesIF::RETURN_FAILED;
|
||||
}
|
||||
if(offset + size > size_) {
|
||||
sif::error << "StorageAccessor: Data too large for pool entry!" << std::endl;
|
||||
return HasReturnvaluesIF::RETURN_FAILED;
|
||||
}
|
||||
std::copy(data, data + size, dataPointer);
|
||||
return HasReturnvaluesIF::RETURN_OK;
|
||||
}
|
||||
|
||||
void StorageAccessor::assignConstPointer() {
|
||||
constDataPointer = dataPointer;
|
||||
}
|
||||
|
||||
|
||||
|
||||
@ -1,174 +1,152 @@
|
||||
///**
|
||||
// * @brief Helper classes to facilitate safe access to storages which is also
|
||||
// * conforming to RAII principles
|
||||
// * @details These helper can be used together with the
|
||||
// * StorageManager classes to manage access to a storage.
|
||||
// * It can take care of thread-safety while also providing
|
||||
// * mechanisms to automatically clear storage data and unlocking the
|
||||
// * pool.
|
||||
// */
|
||||
//#ifndef TEST_PROTOTYPES_STORAGEACCESSOR_H_
|
||||
//#define TEST_PROTOTYPES_STORAGEACCESSOR_H_
|
||||
//
|
||||
//#include <framework/ipc/MutexHelper.h>
|
||||
//#include <framework/storagemanager/StorageManagerIF.h>
|
||||
//#include <memory>
|
||||
//
|
||||
//
|
||||
///**
|
||||
// * @brief Accessor class which can be returned by pool managers
|
||||
// * or passed and set by pool managers to have safe access to the pool
|
||||
// * resources.
|
||||
// */
|
||||
//class ConstStorageAccessor {
|
||||
// //! StorageManager classes have exclusive access to private variables.
|
||||
// template<uint8_t NUMBER_OF_POOLS>
|
||||
// friend class PoolManager;
|
||||
// template<uint8_t NUMBER_OF_POOLS>
|
||||
// friend class LocalPool;
|
||||
//public:
|
||||
// /**
|
||||
// * @brief Simple constructor which takes the store ID of the storage
|
||||
// * entry to access.
|
||||
// * @param storeId
|
||||
// */
|
||||
// ConstStorageAccessor(store_address_t storeId);
|
||||
//
|
||||
// /**
|
||||
// * @brief Move ctor and move assignment allow returning accessors as
|
||||
// * a returnvalue. They prevent resource being free prematurely.
|
||||
// * Refer to: https://github.com/MicrosoftDocs/cpp-docs/blob/master/docs/cpp/
|
||||
// * move-constructors-and-move-assignment-operators-cpp.md
|
||||
// * @param
|
||||
// * @return
|
||||
// */
|
||||
// ConstStorageAccessor& operator= (ConstStorageAccessor&&);
|
||||
// ConstStorageAccessor (ConstStorageAccessor&&);
|
||||
//
|
||||
// //! The copy ctor and copy assignemnt should be deleted implicitely
|
||||
// //! according to https://foonathan.net/2019/02/special-member-functions/
|
||||
// //! but I still deleted them to make it more explicit. (remember rule of 5).
|
||||
// ConstStorageAccessor& operator= (ConstStorageAccessor&) = delete;
|
||||
// ConstStorageAccessor (ConstStorageAccessor&) = delete;
|
||||
//
|
||||
// /**
|
||||
// * @brief The destructor in default configuration takes care of
|
||||
// * deleting the accessed pool entry and unlocking the mutex
|
||||
// */
|
||||
// virtual ~ConstStorageAccessor();
|
||||
//
|
||||
// /**
|
||||
// * @brief Returns a pointer to the read-only data
|
||||
// * @return
|
||||
// */
|
||||
// const uint8_t* data() const;
|
||||
//
|
||||
// /**
|
||||
// * @brief Copies the read-only data to the supplied pointer
|
||||
// * @param pointer
|
||||
// */
|
||||
// void getDataCopy(uint8_t *pointer);
|
||||
//
|
||||
// /**
|
||||
// * @brief Calling this will prevent the Accessor from deleting the data
|
||||
// * when the destructor is called.
|
||||
// */
|
||||
// void release();
|
||||
// /**
|
||||
// * @brief Locks the supplied mutex.
|
||||
// * @details
|
||||
// * The mutex will be unlocked automatically
|
||||
// * when this class is destroyed (for example when exiting the scope).
|
||||
// * Only one mutex can be locked at a time!
|
||||
// * @param mutex
|
||||
// * @param mutexTimeout
|
||||
// * @return
|
||||
// */
|
||||
// ReturnValue_t lock(MutexIF* mutex,
|
||||
// uint32_t mutexTimeout = MutexIF::NO_TIMEOUT);
|
||||
// /**
|
||||
// * @brief Unlocks the mutex (if one has been locked previously).
|
||||
// * Unless this function is called, the mutex is unlocked
|
||||
// * when the class exits the scope.
|
||||
// */
|
||||
// void unlock();
|
||||
//
|
||||
//
|
||||
// /**
|
||||
// * Get the size of the data
|
||||
// * @return
|
||||
// */
|
||||
// size_t size() const;
|
||||
//
|
||||
// /**
|
||||
// * Get the storage ID.
|
||||
// * @return
|
||||
// */
|
||||
// store_address_t getId() const;
|
||||
//
|
||||
// void print() const;
|
||||
//protected:
|
||||
// const uint8_t* constDataPointer = nullptr;
|
||||
// store_address_t storeId;
|
||||
// size_t size_ = 0;
|
||||
// //! Managing pool, has to assign itself.
|
||||
// StorageManagerIF* store = nullptr;
|
||||
// //! Unique pointer to the mutex lock instance. Is initialized by
|
||||
// //! the pool manager.
|
||||
// std::unique_ptr<MutexHelper> mutexLock = nullptr;
|
||||
// bool deleteData = true;
|
||||
//
|
||||
// enum class AccessState {
|
||||
// UNINIT,
|
||||
// READ
|
||||
// };
|
||||
// //! Internal state for safety reasons.
|
||||
// AccessState internalState = AccessState::UNINIT;
|
||||
// /**
|
||||
// * Used by the pool manager instances to assign themselves to the
|
||||
// * accessor. This is necessary to delete the data when the acessor
|
||||
// * exits the scope ! The internal state will be considered read
|
||||
// * when this function is called, so take care all data is set properly as
|
||||
// * well.
|
||||
// * @param
|
||||
// */
|
||||
// void assignStore(StorageManagerIF*);
|
||||
//
|
||||
//};
|
||||
//
|
||||
//
|
||||
///**
|
||||
// * @brief Child class for modifyable data. Also has a normal pointer member.
|
||||
// */
|
||||
//class StorageAccessor: public ConstStorageAccessor {
|
||||
// //! StorageManager classes have exclusive access to private variables.
|
||||
// template<uint8_t NUMBER_OF_POOLS>
|
||||
// friend class PoolManager;
|
||||
// template<uint8_t NUMBER_OF_POOLS>
|
||||
// friend class LocalPool;
|
||||
//public:
|
||||
// StorageAccessor(store_address_t storeId);
|
||||
// /**
|
||||
// * @brief Move ctor and move assignment allow returning accessors as
|
||||
// * a returnvalue. They prevent resource being free prematurely.
|
||||
// * Refer to: https://github.com/MicrosoftDocs/cpp-docs/blob/master/docs/cpp/
|
||||
// * move-constructors-and-move-assignment-operators-cpp.md
|
||||
// * @param
|
||||
// * @return
|
||||
// */
|
||||
// StorageAccessor& operator= (StorageAccessor&&);
|
||||
// StorageAccessor (StorageAccessor&&);
|
||||
//
|
||||
// ReturnValue_t write(uint8_t *data, size_t size,
|
||||
// uint16_t offset);
|
||||
// uint8_t* data();
|
||||
//
|
||||
//private:
|
||||
// //! Non-const pointer for modifyable data.
|
||||
// uint8_t* dataPointer = nullptr;
|
||||
// //! For modifyable data, the const pointer is assigned to the normal
|
||||
// //! pointer by the pool manager so both access functions can be used safely
|
||||
// void assignConstPointer();
|
||||
//};
|
||||
//
|
||||
//#endif /* TEST_PROTOTYPES_STORAGEACCESSOR_H_ */
|
||||
/**
|
||||
* @brief Helper classes to facilitate safe access to storages which is also
|
||||
* conforming to RAII principles
|
||||
* @details These helper can be used together with the
|
||||
* StorageManager classes to manage access to a storage.
|
||||
* It can take care of thread-safety while also providing
|
||||
* mechanisms to automatically clear storage data and unlocking the
|
||||
* pool.
|
||||
*/
|
||||
#ifndef TEST_PROTOTYPES_STORAGEACCESSOR_H_
|
||||
#define TEST_PROTOTYPES_STORAGEACCESSOR_H_
|
||||
|
||||
#include <framework/ipc/MutexHelper.h>
|
||||
#include <framework/storagemanager/StorageManagerIF.h>
|
||||
#include <memory>
|
||||
|
||||
|
||||
/**
|
||||
* @brief Accessor class which can be returned by pool managers
|
||||
* or passed and set by pool managers to have safe access to the pool
|
||||
* resources.
|
||||
*/
|
||||
class ConstStorageAccessor {
|
||||
//! StorageManager classes have exclusive access to private variables.
|
||||
template<uint8_t NUMBER_OF_POOLS>
|
||||
friend class PoolManager;
|
||||
template<uint8_t NUMBER_OF_POOLS>
|
||||
friend class LocalPool;
|
||||
public:
|
||||
/**
|
||||
* @brief Simple constructor which takes the store ID of the storage
|
||||
* entry to access.
|
||||
* @param storeId
|
||||
*/
|
||||
ConstStorageAccessor(store_address_t storeId);
|
||||
|
||||
/**
|
||||
* @brief Move ctor and move assignment allow returning accessors as
|
||||
* a returnvalue. They prevent resource being free prematurely.
|
||||
* Refer to: https://github.com/MicrosoftDocs/cpp-docs/blob/master/docs/cpp/
|
||||
* move-constructors-and-move-assignment-operators-cpp.md
|
||||
* @param
|
||||
* @return
|
||||
*/
|
||||
ConstStorageAccessor& operator= (ConstStorageAccessor&&);
|
||||
ConstStorageAccessor (ConstStorageAccessor&&);
|
||||
|
||||
//! The copy ctor and copy assignemnt should be deleted implicitely
|
||||
//! according to https://foonathan.net/2019/02/special-member-functions/
|
||||
//! but I still deleted them to make it more explicit. (remember rule of 5).
|
||||
ConstStorageAccessor& operator= (ConstStorageAccessor&) = delete;
|
||||
ConstStorageAccessor (ConstStorageAccessor&) = delete;
|
||||
|
||||
/**
|
||||
* @brief The destructor in default configuration takes care of
|
||||
* deleting the accessed pool entry and unlocking the mutex
|
||||
*/
|
||||
virtual ~ConstStorageAccessor();
|
||||
|
||||
/**
|
||||
* @brief Returns a pointer to the read-only data
|
||||
* @return
|
||||
*/
|
||||
const uint8_t* data() const;
|
||||
|
||||
/**
|
||||
* @brief Copies the read-only data to the supplied pointer
|
||||
* @param pointer
|
||||
*/
|
||||
ReturnValue_t getDataCopy(uint8_t *pointer, size_t maxSize);
|
||||
|
||||
/**
|
||||
* @brief Calling this will prevent the Accessor from deleting the data
|
||||
* when the destructor is called.
|
||||
*/
|
||||
void release();
|
||||
|
||||
/**
|
||||
* Get the size of the data
|
||||
* @return
|
||||
*/
|
||||
size_t size() const;
|
||||
|
||||
/**
|
||||
* Get the storage ID.
|
||||
* @return
|
||||
*/
|
||||
store_address_t getId() const;
|
||||
|
||||
void print() const;
|
||||
protected:
|
||||
const uint8_t* constDataPointer = nullptr;
|
||||
store_address_t storeId;
|
||||
size_t size_ = 0;
|
||||
//! Managing pool, has to assign itself.
|
||||
StorageManagerIF* store = nullptr;
|
||||
bool deleteData = true;
|
||||
|
||||
enum class AccessState {
|
||||
UNINIT,
|
||||
READ
|
||||
};
|
||||
//! Internal state for safety reasons.
|
||||
AccessState internalState = AccessState::UNINIT;
|
||||
/**
|
||||
* Used by the pool manager instances to assign themselves to the
|
||||
* accessor. This is necessary to delete the data when the acessor
|
||||
* exits the scope ! The internal state will be considered read
|
||||
* when this function is called, so take care all data is set properly as
|
||||
* well.
|
||||
* @param
|
||||
*/
|
||||
void assignStore(StorageManagerIF*);
|
||||
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @brief Child class for modifyable data. Also has a normal pointer member.
|
||||
*/
|
||||
class StorageAccessor: public ConstStorageAccessor {
|
||||
//! StorageManager classes have exclusive access to private variables.
|
||||
template<uint8_t NUMBER_OF_POOLS>
|
||||
friend class PoolManager;
|
||||
template<uint8_t NUMBER_OF_POOLS>
|
||||
friend class LocalPool;
|
||||
public:
|
||||
StorageAccessor(store_address_t storeId);
|
||||
/**
|
||||
* @brief Move ctor and move assignment allow returning accessors as
|
||||
* a returnvalue. They prevent resource being free prematurely.
|
||||
* Refer to: https://github.com/MicrosoftDocs/cpp-docs/blob/master/docs/cpp/
|
||||
* move-constructors-and-move-assignment-operators-cpp.md
|
||||
* @param
|
||||
* @return
|
||||
*/
|
||||
StorageAccessor& operator= (StorageAccessor&&);
|
||||
StorageAccessor (StorageAccessor&&);
|
||||
|
||||
ReturnValue_t write(uint8_t *data, size_t size,
|
||||
uint16_t offset);
|
||||
uint8_t* data();
|
||||
|
||||
private:
|
||||
//! Non-const pointer for modifyable data.
|
||||
uint8_t* dataPointer = nullptr;
|
||||
//! For modifyable data, the const pointer is assigned to the normal
|
||||
//! pointer by the pool manager so both access functions can be used safely
|
||||
void assignConstPointer();
|
||||
};
|
||||
|
||||
#endif /* TEST_PROTOTYPES_STORAGEACCESSOR_H_ */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user