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d97a073d1b
They all just as the CRT, as all are currently based on the CRT. Which doesn't currently know the total clock rate it would need to in order properly to scale the answer to the question. Further thought coming.
95 lines
3.1 KiB
C++
95 lines
3.1 KiB
C++
//
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// MultiCRTMachine.cpp
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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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#include "MultiCRTMachine.hpp"
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#include <condition_variable>
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#include <mutex>
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using namespace Analyser::Dynamic;
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MultiCRTMachine::MultiCRTMachine(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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speaker_ = MultiSpeaker::create(machines);
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}
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void MultiCRTMachine::perform_parallel(const std::function<void(::CRTMachine::Machine *)> &function) {
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// Apply a blunt force parallelisation of the machines; each run_for is dispatched
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// to a separate queue and this queue will block until all are done.
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volatile std::size_t outstanding_machines;
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std::condition_variable condition;
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std::mutex mutex;
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{
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std::lock_guard<decltype(machines_mutex_)> machines_lock(machines_mutex_);
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std::lock_guard<std::mutex> lock(mutex);
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outstanding_machines = machines_.size();
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for(std::size_t index = 0; index < machines_.size(); ++index) {
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CRTMachine::Machine *crt_machine = machines_[index]->crt_machine();
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queues_[index].enqueue([&mutex, &condition, crt_machine, function, &outstanding_machines]() {
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if(crt_machine) function(crt_machine);
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std::lock_guard<std::mutex> lock(mutex);
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outstanding_machines--;
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condition.notify_all();
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});
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}
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}
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std::unique_lock<std::mutex> lock(mutex);
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condition.wait(lock, [&outstanding_machines] { return !outstanding_machines; });
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}
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void MultiCRTMachine::perform_serial(const std::function<void (::CRTMachine::Machine *)> &function) {
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std::lock_guard<decltype(machines_mutex_)> machines_lock(machines_mutex_);
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for(const auto &machine: machines_) {
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CRTMachine::Machine *const crt_machine = machine->crt_machine();
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if(crt_machine) function(crt_machine);
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}
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}
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void MultiCRTMachine::set_scan_target(Outputs::Display::ScanTarget *scan_target) {
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scan_target_ = scan_target;
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CRTMachine::Machine *const crt_machine = machines_.front()->crt_machine();
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if(crt_machine) crt_machine->set_scan_target(scan_target);
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}
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Outputs::Display::ScanStatus MultiCRTMachine::get_scan_status() const {
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CRTMachine::Machine *const crt_machine = machines_.front()->crt_machine();
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if(crt_machine) crt_machine->get_scan_status();
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return Outputs::Display::ScanStatus();
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}
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Outputs::Speaker::Speaker *MultiCRTMachine::get_speaker() {
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return speaker_;
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}
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void MultiCRTMachine::run_for(Time::Seconds duration) {
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perform_parallel([=](::CRTMachine::Machine *machine) {
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if(machine->get_confidence() >= 0.01f) machine->run_for(duration);
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});
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if(delegate_) delegate_->multi_crt_did_run_machines();
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}
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void MultiCRTMachine::did_change_machine_order() {
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if(scan_target_) scan_target_->will_change_owner();
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perform_serial([=](::CRTMachine::Machine *machine) {
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machine->set_scan_target(nullptr);
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});
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CRTMachine::Machine *const crt_machine = machines_.front()->crt_machine();
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if(crt_machine) crt_machine->set_scan_target(scan_target_);
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if(speaker_) {
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speaker_->set_new_front_machine(machines_.front().get());
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}
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}
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