mirror of
https://github.com/akuker/RASCSI.git
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114 lines
2.9 KiB
C++
114 lines
2.9 KiB
C++
//---------------------------------------------------------------------------
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//
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// SCSI Target Emulator PiSCSI
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// for Raspberry Pi
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//
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// Copyright (C) 2022-2023 Uwe Seimet
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//
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//---------------------------------------------------------------------------
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#include "devices/primary_device.h"
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#include "scsi_controller.h"
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#include "controller_manager.h"
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using namespace std;
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shared_ptr<ScsiController> ControllerManager::CreateScsiController(BUS& bus, int id) const
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{
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auto controller = make_shared<ScsiController>(bus, id);
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controller->Init();
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return controller;
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}
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bool ControllerManager::AttachToController(BUS& bus, int id, shared_ptr<PrimaryDevice> device)
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{
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if (auto controller = FindController(id); controller != nullptr) {
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if (controller->HasDeviceForLun(device->GetLun())) {
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return false;
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}
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return controller->AddDevice(device);
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}
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// If this is LUN 0 create a new controller
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if (!device->GetLun()) {
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if (auto controller = CreateScsiController(bus, id); controller->AddDevice(device)) {
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controllers[id] = controller;
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return true;
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}
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}
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return false;
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}
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bool ControllerManager::DeleteController(const AbstractController& controller)
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{
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for (const auto& device : controller.GetDevices()) {
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device->CleanUp();
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}
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return controllers.erase(controller.GetTargetId()) == 1;
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}
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void ControllerManager::DeleteAllControllers()
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{
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unordered_set<shared_ptr<AbstractController>> values;
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ranges::transform(controllers, inserter(values, values.begin()), [] (const auto& controller) { return controller.second; } );
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for (const auto& controller : values) {
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DeleteController(*controller);
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}
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assert(controllers.empty());
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}
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AbstractController::piscsi_shutdown_mode ControllerManager::ProcessOnController(int id_data) const
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{
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if (const auto& it = ranges::find_if(controllers, [&] (const auto& c) { return (id_data & (1 << c.first)); } );
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it != controllers.end()) {
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(*it).second->ProcessOnController(id_data);
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return (*it).second->GetShutdownMode();
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}
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return AbstractController::piscsi_shutdown_mode::NONE;
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}
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shared_ptr<AbstractController> ControllerManager::FindController(int target_id) const
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{
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const auto& it = controllers.find(target_id);
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return it == controllers.end() ? nullptr : it->second;
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}
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bool ControllerManager::HasController(int target_id) const {
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return controllers.contains(target_id);
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}
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unordered_set<shared_ptr<PrimaryDevice>> ControllerManager::GetAllDevices() const
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{
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unordered_set<shared_ptr<PrimaryDevice>> devices;
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for (const auto& [_, controller] : controllers) {
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const auto& d = controller->GetDevices();
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devices.insert(d.begin(), d.end());
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}
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return devices;
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}
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bool ControllerManager::HasDeviceForIdAndLun(int id, int lun) const
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{
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return GetDeviceForIdAndLun(id, lun) != nullptr;
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}
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shared_ptr<PrimaryDevice> ControllerManager::GetDeviceForIdAndLun(int id, int lun) const
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{
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if (const auto& controller = FindController(id); controller != nullptr) {
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return controller->GetDeviceForLun(lun);
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}
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return nullptr;
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}
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