subsurface/core/owning_ptrs.h
Berthold Stoeger 3f8b4604be core: convert taxonomy.c to C++
Since the taxonomy is now a real C++ struct with constructor
and destructor, dive_site has to be converted to C++ as well.

A bit hairy for now, but will ultimately be distinctly simpler.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2024-08-13 19:28:30 +02:00

36 lines
1.1 KiB
C++

// SPDX-License-Identifier: GPL-2.0
// Convenience classes defining owning pointers to C-objects that
// automatically clean up the objects if the pointers go out of
// scope. Based on unique_ptr<>.
// In the future, we should replace these by real destructors.
#ifndef OWNING_PTR_H
#define OWNING_PTR_H
#include <memory>
#include <cstdlib>
struct dive;
struct dive_trip;
struct dive_site;
struct event;
extern "C" void free_dive(struct dive *);
extern "C" void free_trip(struct dive_trip *);
// Classes used to automatically call the appropriate free_*() function for owning pointers that go out of scope.
struct DiveDeleter {
void operator()(dive *d) { free_dive(d); }
};
struct TripDeleter {
void operator()(dive_trip *t) { free_trip(t); }
};
struct EventDeleter {
void operator()(event *ev) { free(ev); }
};
// Owning pointers to dive, dive_trip, dive_site and event objects.
using OwningDivePtr = std::unique_ptr<dive, DiveDeleter>;
using OwningTripPtr = std::unique_ptr<dive_trip, TripDeleter>;
using OwningEventPtr = std::unique_ptr<event, EventDeleter>;
#endif