fsfw/datapoollocal/internal/LocalDpManagerAttorney.h
2021-01-12 20:46:34 +01:00

33 lines
1.2 KiB
C++

#ifndef FSFW_DATAPOOLLOCAL_LOCALDPMANAGERATTORNEY_H_
#define FSFW_DATAPOOLLOCAL_LOCALDPMANAGERATTORNEY_H_
#include <fsfw/datapoollocal/LocalDataPoolManager.h>
/**
* @brief This is a helper class implements the Attorney-Client idiom for access to
* LocalDataPoolManager internals
* @details
* This helper class provides better control over which classes are allowed to access
* LocalDataPoolManager internals in a granular and encapsulated way when compared to
* other methods like direct friend declarations. It allows these classes to use
* an explicit subset of the pool manager private/protected functions.
* See: https://en.wikibooks.org/wiki/More_C%2B%2B_Idioms/Friendship_and_the_Attorney-Client
*/
class LocalDpManagerAttorney {
private:
template<typename T> static ReturnValue_t fetchPoolEntry(LocalDataPoolManager& manager,
lp_id_t localPoolId, PoolEntry<T> **poolEntry) {
return manager.fetchPoolEntry(localPoolId, poolEntry);
}
static MutexIF* getMutexHandle(LocalDataPoolManager& manager) {
return manager.getMutexHandle();
}
template<typename T> friend class LocalPoolVariable;
template<typename T, uint16_t vecSize> friend class LocalPoolVector;
};
#endif /* FSFW_DATAPOOLLOCAL_LOCALDPMANAGERATTORNEY_H_ */