Shipwright/soh/soh/Enhancements/savestates.h
2022-05-12 13:28:24 -04:00

63 lines
1.2 KiB
C++

#ifndef SAVE_STATES_H
#define SAVE_STATES_H
#include <cstdint>
#include <queue>
#include <unordered_map>
#include <memory>
#include <mutex>
enum class SaveStateReturn {
SUCCESS,
FAIL_INVALID_SLOT,
FAIL_NO_MEMORY,
FAIL_STATE_EMPTY,
FAIL_WRONG_GAMESTATE,
FAIL_BAD_REQUEST,
};
typedef struct SaveStateHeader {
uint32_t stateMagic;
uint32_t stateVersion;
//uint32_t gameVersion;
} SaveStateHeader;
enum class RequestType {
SAVE,
LOAD,
};
typedef struct SaveStateRequest {
unsigned int slot;
RequestType type;
} SaveStateRequest;
class SaveState;
class SaveStateMgr {
friend class SaveState;
private:
unsigned int currentSlot;
std::unordered_map<unsigned int, std::shared_ptr<SaveState>> states;
std::queue <SaveStateRequest> requests;
std::mutex mutex;
public:
SaveStateReturn AddRequest(const SaveStateRequest request);
SaveStateMgr();
~SaveStateMgr();
void SetCurrentSlot(unsigned int slot);
unsigned int GetCurrentSlot(void);
SaveStateMgr& operator=(const SaveStateMgr& rhs) = delete;
SaveStateMgr(const SaveStateMgr& rhs) = delete;
void ProcessSaveStateRequests(void);
};
extern std::shared_ptr<SaveStateMgr> gSaveStateMgr;
#endif