mirror of https://github.com/TomHarte/CLK.git
117 lines
3.5 KiB
C++
117 lines
3.5 KiB
C++
//
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// MultiProducer.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 29/01/2018.
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// Copyright 2018 Thomas Harte. All rights reserved.
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//
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#pragma once
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#include "../../../../Concurrency/AsyncTaskQueue.hpp"
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#include "../../../../Machines/MachineTypes.hpp"
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#include "../../../../Machines/DynamicMachine.hpp"
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#include "MultiSpeaker.hpp"
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#include <memory>
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#include <mutex>
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#include <vector>
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namespace Analyser::Dynamic {
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template <typename MachineType> class MultiInterface {
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public:
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MultiInterface(const std::vector<std::unique_ptr<::Machine::DynamicMachine>> &machines, std::recursive_mutex &machines_mutex) :
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machines_(machines), machines_mutex_(machines_mutex), queues_(machines.size()) {}
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protected:
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/*!
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Performs a parallel for operation across all machines, performing the supplied
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function on each and returning only once all applications have completed.
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No guarantees are extended as to which thread operations will occur on.
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*/
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void perform_parallel(const std::function<void(MachineType *)> &);
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/*!
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Performs a serial for operation across all machines, performing the supplied
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function on each on the calling thread.
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*/
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void perform_serial(const std::function<void(MachineType *)> &);
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protected:
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const std::vector<std::unique_ptr<::Machine::DynamicMachine>> &machines_;
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std::recursive_mutex &machines_mutex_;
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private:
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std::vector<Concurrency::AsyncTaskQueue<true>> queues_;
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};
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class MultiTimedMachine: public MultiInterface<MachineTypes::TimedMachine>, public MachineTypes::TimedMachine {
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public:
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using MultiInterface::MultiInterface;
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/*!
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Provides a mechanism by which a delegate can be informed each time a call to run_for has
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been received.
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*/
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struct Delegate {
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virtual void did_run_machines(MultiTimedMachine *) = 0;
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};
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/// Sets @c delegate as the receiver of delegate messages.
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void set_delegate(Delegate *delegate) {
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delegate_ = delegate;
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}
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void run_for(Time::Seconds duration) final;
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private:
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void run_for(const Cycles) final {}
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Delegate *delegate_ = nullptr;
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};
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class MultiScanProducer: public MultiInterface<MachineTypes::ScanProducer>, public MachineTypes::ScanProducer {
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public:
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using MultiInterface::MultiInterface;
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/*!
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Informs the MultiScanProducer that the order of machines has changed; it
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uses this as an opportunity to synthesis any CRTMachine::Machine::Delegate messages that
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are necessary to bridge the gap between one machine and the next.
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*/
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void did_change_machine_order();
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void set_scan_target(Outputs::Display::ScanTarget *scan_target) final;
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Outputs::Display::ScanStatus get_scan_status() const final;
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private:
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Outputs::Display::ScanTarget *scan_target_ = nullptr;
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};
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class MultiAudioProducer: public MultiInterface<MachineTypes::AudioProducer>, public MachineTypes::AudioProducer {
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public:
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MultiAudioProducer(const std::vector<std::unique_ptr<::Machine::DynamicMachine>> &machines, std::recursive_mutex &machines_mutex);
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/*!
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Informs the MultiAudio that the order of machines has changed; it
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uses this as an opportunity to switch speaker delegates as appropriate.
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*/
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void did_change_machine_order();
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Outputs::Speaker::Speaker *get_speaker() final;
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private:
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MultiSpeaker *speaker_ = nullptr;
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};
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/*!
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Provides a class that multiplexes the CRT machine interface to multiple machines.
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Keeps a reference to the original vector of machines; will access it only after
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acquiring a supplied mutex. The owner should also call did_change_machine_order()
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if the order of machines changes.
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*/
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}
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