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suyu/src/core/core.h
Lioncash a0ce6de913 core: Delete System copy/move constructors and assignment operators
Prevents potentially making copies or doing silly things by accident
with the System instance, particularly given our current core is
designed (unfortunately) around one instantiable instance.

This will prevent the accidental case of:

auto instance = System::Instance();

being compiled without warning when it's supposed to be:

auto& instance = System::Instance();
2018-08-16 10:21:14 -04:00

282 lines
8.7 KiB
C++

// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <memory>
#include <string>
#include <thread>
#include "common/common_types.h"
#include "core/arm/exclusive_monitor.h"
#include "core/core_cpu.h"
#include "core/hle/kernel/object.h"
#include "core/hle/kernel/scheduler.h"
#include "core/loader/loader.h"
#include "core/memory.h"
#include "core/perf_stats.h"
#include "core/telemetry_session.h"
#include "file_sys/vfs_real.h"
#include "hle/service/filesystem/filesystem.h"
#include "video_core/debug_utils/debug_utils.h"
#include "video_core/gpu.h"
class ARM_Interface;
namespace Core::Frontend {
class EmuWindow;
}
namespace Service::SM {
class ServiceManager;
}
namespace VideoCore {
class RendererBase;
}
namespace Core {
class System {
public:
System(const System&) = delete;
System& operator=(const System&) = delete;
System(System&&) = delete;
System& operator=(System&&) = delete;
~System();
/**
* Gets the instance of the System singleton class.
* @returns Reference to the instance of the System singleton class.
*/
static System& GetInstance() {
return s_instance;
}
/// Enumeration representing the return values of the System Initialize and Load process.
enum class ResultStatus : u32 {
Success, ///< Succeeded
ErrorNotInitialized, ///< Error trying to use core prior to initialization
ErrorGetLoader, ///< Error finding the correct application loader
ErrorSystemMode, ///< Error determining the system mode
ErrorSystemFiles, ///< Error in finding system files
ErrorSharedFont, ///< Error in finding shared font
ErrorVideoCore, ///< Error in the video core
ErrorUnknown, ///< Any other error
ErrorLoader, ///< The base for loader errors (too many to repeat)
};
/**
* Run the core CPU loop
* This function runs the core for the specified number of CPU instructions before trying to
* update hardware. This is much faster than SingleStep (and should be equivalent), as the CPU
* is not required to do a full dispatch with each instruction. NOTE: the number of instructions
* requested is not guaranteed to run, as this will be interrupted preemptively if a hardware
* update is requested (e.g. on a thread switch).
* @param tight_loop If false, the CPU single-steps.
* @return Result status, indicating whether or not the operation succeeded.
*/
ResultStatus RunLoop(bool tight_loop = true);
/**
* Step the CPU one instruction
* @return Result status, indicating whether or not the operation succeeded.
*/
ResultStatus SingleStep();
/**
* Invalidate the CPU instruction caches
* This function should only be used by GDB Stub to support breakpoints, memory updates and
* step/continue commands.
*/
void InvalidateCpuInstructionCaches() {
for (auto& cpu : cpu_cores) {
cpu->ArmInterface().ClearInstructionCache();
}
}
/// Shutdown the emulated system.
void Shutdown();
/**
* Load an executable application.
* @param emu_window Reference to the host-system window used for video output and keyboard
* input.
* @param filepath String path to the executable application to load on the host file system.
* @returns ResultStatus code, indicating if the operation succeeded.
*/
ResultStatus Load(Frontend::EmuWindow& emu_window, const std::string& filepath);
/**
* Indicates if the emulated system is powered on (all subsystems initialized and able to run an
* application).
* @returns True if the emulated system is powered on, otherwise false.
*/
bool IsPoweredOn() const {
return cpu_barrier && cpu_barrier->IsAlive();
}
/**
* Returns a reference to the telemetry session for this emulation session.
* @returns Reference to the telemetry session.
*/
Core::TelemetrySession& TelemetrySession() const {
return *telemetry_session;
}
/// Prepare the core emulation for a reschedule
void PrepareReschedule();
/// Gets and resets core performance statistics
PerfStats::Results GetAndResetPerfStats();
/// Gets an ARM interface to the CPU core that is currently running
ARM_Interface& CurrentArmInterface() {
return CurrentCpuCore().ArmInterface();
}
/// Gets the index of the currently running CPU core
size_t CurrentCoreIndex() {
return CurrentCpuCore().CoreIndex();
}
/// Gets an ARM interface to the CPU core with the specified index
ARM_Interface& ArmInterface(size_t core_index);
/// Gets a CPU interface to the CPU core with the specified index
Cpu& CpuCore(size_t core_index);
/// Gets a mutable reference to the GPU interface
Tegra::GPU& GPU() {
return *gpu_core;
}
/// Gets an immutable reference to the GPU interface.
const Tegra::GPU& GPU() const {
return *gpu_core;
}
/// Gets a mutable reference to the renderer.
VideoCore::RendererBase& Renderer() {
return *renderer;
}
/// Gets an immutable reference to the renderer.
const VideoCore::RendererBase& Renderer() const {
return *renderer;
}
/// Gets the scheduler for the CPU core that is currently running
Kernel::Scheduler& CurrentScheduler() {
return *CurrentCpuCore().Scheduler();
}
/// Gets the exclusive monitor
ExclusiveMonitor& Monitor() {
return *cpu_exclusive_monitor;
}
/// Gets the scheduler for the CPU core with the specified index
const std::shared_ptr<Kernel::Scheduler>& Scheduler(size_t core_index);
/// Gets the current process
Kernel::SharedPtr<Kernel::Process>& CurrentProcess() {
return current_process;
}
PerfStats perf_stats;
FrameLimiter frame_limiter;
void SetStatus(ResultStatus new_status, const char* details = nullptr) {
status = new_status;
if (details) {
status_details = details;
}
}
const std::string& GetStatusDetails() const {
return status_details;
}
Loader::AppLoader& GetAppLoader() const {
return *app_loader;
}
Service::SM::ServiceManager& ServiceManager();
const Service::SM::ServiceManager& ServiceManager() const;
void SetGPUDebugContext(std::shared_ptr<Tegra::DebugContext> context) {
debug_context = std::move(context);
}
std::shared_ptr<Tegra::DebugContext> GetGPUDebugContext() const {
return debug_context;
}
void SetFilesystem(FileSys::VirtualFilesystem vfs) {
virtual_filesystem = std::move(vfs);
}
FileSys::VirtualFilesystem GetFilesystem() const {
return virtual_filesystem;
}
private:
System();
/// Returns the currently running CPU core
Cpu& CurrentCpuCore();
/**
* Initialize the emulated system.
* @param emu_window Reference to the host-system window used for video output and keyboard
* input.
* @return ResultStatus code, indicating if the operation succeeded.
*/
ResultStatus Init(Frontend::EmuWindow& emu_window);
/// RealVfsFilesystem instance
FileSys::VirtualFilesystem virtual_filesystem;
/// AppLoader used to load the current executing application
std::unique_ptr<Loader::AppLoader> app_loader;
std::unique_ptr<VideoCore::RendererBase> renderer;
std::unique_ptr<Tegra::GPU> gpu_core;
std::shared_ptr<Tegra::DebugContext> debug_context;
Kernel::SharedPtr<Kernel::Process> current_process;
std::shared_ptr<ExclusiveMonitor> cpu_exclusive_monitor;
std::shared_ptr<CpuBarrier> cpu_barrier;
std::array<std::shared_ptr<Cpu>, NUM_CPU_CORES> cpu_cores;
std::array<std::unique_ptr<std::thread>, NUM_CPU_CORES - 1> cpu_core_threads;
size_t active_core{}; ///< Active core, only used in single thread mode
/// Service manager
std::shared_ptr<Service::SM::ServiceManager> service_manager;
/// Telemetry session for this emulation session
std::unique_ptr<Core::TelemetrySession> telemetry_session;
static System s_instance;
ResultStatus status = ResultStatus::Success;
std::string status_details = "";
/// Map of guest threads to CPU cores
std::map<std::thread::id, std::shared_ptr<Cpu>> thread_to_cpu;
};
inline ARM_Interface& CurrentArmInterface() {
return System::GetInstance().CurrentArmInterface();
}
inline TelemetrySession& Telemetry() {
return System::GetInstance().TelemetrySession();
}
inline Kernel::SharedPtr<Kernel::Process>& CurrentProcess() {
return System::GetInstance().CurrentProcess();
}
} // namespace Core