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CLK/Analyser/Dynamic/MultiMachine/MultiMachine.hpp
Thomas Harte 294e09f275 All these 'override's can be 'final's.
At least for the purpose of being communicative. I doubt there's much to gain in terms of compiler output — the DiskImageHolder can avoid some virtual lookups but nothing else leaps out.
2020-01-23 22:57:51 -05:00

82 lines
2.4 KiB
C++

//
// MultiMachine.hpp
// Clock Signal
//
// Created by Thomas Harte on 28/01/2018.
// Copyright 2018 Thomas Harte. All rights reserved.
//
#ifndef MultiMachine_hpp
#define MultiMachine_hpp
#include "../../../Machines/DynamicMachine.hpp"
#include "Implementation/MultiConfigurable.hpp"
#include "Implementation/MultiCRTMachine.hpp"
#include "Implementation/MultiJoystickMachine.hpp"
#include "Implementation/MultiKeyboardMachine.hpp"
#include "Implementation/MultiMediaTarget.hpp"
#include <memory>
#include <mutex>
#include <vector>
namespace Analyser {
namespace Dynamic {
/*!
Provides the same interface as to a single machine, while multiplexing all
underlying calls to an array of real dynamic machines.
Calls to crt_machine->get_crt will return that for the frontmost machine;
anything installed as the speaker's delegate will similarly receive
feedback only from that machine.
Following each crt_machine->run_for, reorders the supplied machines by
confidence.
If confidence for any machine becomes disproportionately low compared to
the others in the set, that machine stops running.
*/
class MultiMachine: public ::Machine::DynamicMachine, public MultiCRTMachine::Delegate {
public:
/*!
Allows a potential MultiMachine creator to enquire as to whether there's any benefit in
requesting this class as a proxy.
@returns @c true if the multimachine would discard all but the first machine in this list;
@c false otherwise.
*/
static bool would_collapse(const std::vector<std::unique_ptr<DynamicMachine>> &machines);
MultiMachine(std::vector<std::unique_ptr<DynamicMachine>> &&machines);
Activity::Source *activity_source() final;
Configurable::Device *configurable_device() final;
CRTMachine::Machine *crt_machine() final;
JoystickMachine::Machine *joystick_machine() final;
MouseMachine::Machine *mouse_machine() final;
KeyboardMachine::Machine *keyboard_machine() final;
MediaTarget::Machine *media_target() final;
void *raw_pointer() final;
private:
void multi_crt_did_run_machines() final;
std::vector<std::unique_ptr<DynamicMachine>> machines_;
std::recursive_mutex machines_mutex_;
MultiConfigurable configurable_;
MultiCRTMachine crt_machine_;
MultiJoystickMachine joystick_machine_;
MultiKeyboardMachine keyboard_machine_;
MultiMediaTarget media_target_;
void pick_first();
bool has_picked_ = false;
};
}
}
#endif /* MultiMachine_hpp */