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core: Make use of [[nodiscard]] with the System class 

Given this is a central class, we should flag cases where the return
value of some functions not being used is likely a bug.

Co-Authored-By: LC <712067+lioncash@users.noreply.github.com>
This commit is contained in:
FearlessTobi 2021-01-17 19:05:43 +01:00
parent 7c6d7905a4
commit 8d2e28cf76
1 changed files with 40 additions and 43 deletions
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83
src/core/core.h
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@ -69,7 +69,7 @@ public:
* Gets the instance of the System singleton class.
* @returns Reference to the instance of the System singleton class.
*/
static System& GetInstance() {
[[nodiscard]] static System& GetInstance() {
return s_instance;
}
@ -106,13 +106,13 @@ public:
* @param tight_loop If false, the CPU single-steps.
* @return Result status, indicating whethor or not the operation succeeded.
*/
ResultStatus RunLoop(bool tight_loop = true);
[[nodiscard]] ResultStatus RunLoop(bool tight_loop = true);
/**
* Step the CPU one instruction
* @return Result status, indicating whethor or not the operation succeeded.
*/
ResultStatus SingleStep();
[[nodiscard]] ResultStatus SingleStep();
/// Shutdown the emulated system.
void Shutdown(bool is_deserializing = false);
@ -122,7 +122,7 @@ public:
enum class Signal : u32 { None, Shutdown, Reset, Save, Load };
bool SendSignal(Signal signal, u32 param = 0);
[[nodiscard]] bool SendSignal(Signal signal, u32 param = 0);
/// Request reset of the system
void RequestReset() {
@ -141,14 +141,14 @@ public:
* @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);
[[nodiscard]] 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 {
[[nodiscard]] bool IsPoweredOn() const {
return cpu_cores.size() > 0 &&
std::all_of(cpu_cores.begin(), cpu_cores.end(),
[](std::shared_ptr<ARM_Interface> ptr) { return ptr != nullptr; });
@ -159,21 +159,21 @@ public:
* Returns a reference to the telemetry session for this emulation session.
* @returns Reference to the telemetry session.
*/
Core::TelemetrySession& TelemetrySession() const {
[[nodiscard]] Core::TelemetrySession& TelemetrySession() const {
return *telemetry_session;
}
/// Prepare the core emulation for a reschedule
void PrepareReschedule();
PerfStats::Results GetAndResetPerfStats();
[[nodiscard]] PerfStats::Results GetAndResetPerfStats();
/**
* Gets a reference to the emulated CPU.
* @returns A reference to the emulated CPU.
*/
ARM_Interface& GetRunningCore() {
[[nodiscard]] ARM_Interface& GetRunningCore() {
return *running_core;
};
@ -183,11 +183,11 @@ public:
* @returns A reference to the emulated CPU.
*/
ARM_Interface& GetCore(u32 core_id) {
[[nodiscard]] ARM_Interface& GetCore(u32 core_id) {
return *cpu_cores[core_id];
};
u32 GetNumCores() const {
[[nodiscard]] u32 GetNumCores() const {
return static_cast<u32>(cpu_cores.size());
}
@ -201,68 +201,65 @@ public:
* Gets a reference to the emulated DSP.
* @returns A reference to the emulated DSP.
*/
AudioCore::DspInterface& DSP() {
[[nodiscard]] AudioCore::DspInterface& DSP() {
return *dsp_core;
}
RendererBase& Renderer();
[[nodiscard]] RendererBase& Renderer();
/**
* Gets a reference to the service manager.
* @returns A reference to the service manager.
*/
Service::SM::ServiceManager& ServiceManager();
[[nodiscard]] Service::SM::ServiceManager& ServiceManager();
/**
* Gets a const reference to the service manager.
* @returns A const reference to the service manager.
*/
const Service::SM::ServiceManager& ServiceManager() const;
[[nodiscard]] const Service::SM::ServiceManager& ServiceManager() const;
/// Gets a reference to the archive manager
Service::FS::ArchiveManager& ArchiveManager();
[[nodiscard]] Service::FS::ArchiveManager& ArchiveManager();
/// Gets a const reference to the archive manager
const Service::FS::ArchiveManager& ArchiveManager() const;
[[nodiscard]] const Service::FS::ArchiveManager& ArchiveManager() const;
/// Gets a reference to the kernel
Kernel::KernelSystem& Kernel();
[[nodiscard]] Kernel::KernelSystem& Kernel();
/// Gets a const reference to the kernel
const Kernel::KernelSystem& Kernel() const;
[[nodiscard]] const Kernel::KernelSystem& Kernel() const;
/// Gets a reference to the timing system
Timing& CoreTiming();
[[nodiscard]] Timing& CoreTiming();
/// Gets a const reference to the timing system
const Timing& CoreTiming() const;
[[nodiscard]] const Timing& CoreTiming() const;
/// Gets a reference to the memory system
Memory::MemorySystem& Memory();
[[nodiscard]] Memory::MemorySystem& Memory();
/// Gets a const reference to the memory system
const Memory::MemorySystem& Memory() const;
[[nodiscard]] const Memory::MemorySystem& Memory() const;
/// Gets a reference to the cheat engine
Cheats::CheatEngine& CheatEngine();
[[nodiscard]] Cheats::CheatEngine& CheatEngine();
/// Gets a const reference to the cheat engine
const Cheats::CheatEngine& CheatEngine() const;
[[nodiscard]] const Cheats::CheatEngine& CheatEngine() const;
/// Gets a reference to the custom texture cache system
Core::CustomTexCache& CustomTexCache();
[[nodiscard]] Core::CustomTexCache& CustomTexCache();
/// Gets a const reference to the custom texture cache system
const Core::CustomTexCache& CustomTexCache() const;
/// Handles loading all custom textures from disk into cache.
void PreloadCustomTextures();
[[nodiscard]] const Core::CustomTexCache& CustomTexCache() const;
/// Gets a reference to the video dumper backend
VideoDumper::Backend& VideoDumper();
[[nodiscard]] VideoDumper::Backend& VideoDumper();
/// Gets a const reference to the video dumper backend
const VideoDumper::Backend& VideoDumper() const;
[[nodiscard]] const VideoDumper::Backend& VideoDumper() const;
std::unique_ptr<PerfStats> perf_stats;
FrameLimiter frame_limiter;
@ -274,11 +271,11 @@ public:
}
}
const std::string& GetStatusDetails() const {
[[nodiscard]] const std::string& GetStatusDetails() const {
return status_details;
}
Loader::AppLoader& GetAppLoader() const {
[[nodiscard]] Loader::AppLoader& GetAppLoader() const {
return *app_loader;
}
@ -288,11 +285,11 @@ public:
void RegisterSoftwareKeyboard(std::shared_ptr<Frontend::SoftwareKeyboard> swkbd);
std::shared_ptr<Frontend::MiiSelector> GetMiiSelector() const {
[[nodiscard]] std::shared_ptr<Frontend::MiiSelector> GetMiiSelector() const {
return registered_mii_selector;
}
std::shared_ptr<Frontend::SoftwareKeyboard> GetSoftwareKeyboard() const {
[[nodiscard]] std::shared_ptr<Frontend::SoftwareKeyboard> GetSoftwareKeyboard() const {
return registered_swkbd;
}
@ -300,7 +297,7 @@ public:
void RegisterImageInterface(std::shared_ptr<Frontend::ImageInterface> image_interface);
std::shared_ptr<Frontend::ImageInterface> GetImageInterface() const {
[[nodiscard]] std::shared_ptr<Frontend::ImageInterface> GetImageInterface() const {
return registered_image_interface;
}
@ -316,8 +313,8 @@ private:
* @param system_mode The system mode.
* @return ResultStatus code, indicating if the operation succeeded.
*/
ResultStatus Init(Frontend::EmuWindow& emu_window, u32 system_mode, u8 n3ds_mode,
u32 num_cores);
[[nodiscard]] ResultStatus Init(Frontend::EmuWindow& emu_window, u32 system_mode, u8 n3ds_mode,
u32 num_cores);
/// Reschedule the core emulation
void Reschedule();
@ -387,19 +384,19 @@ private:
void serialize(Archive& ar, const unsigned int file_version);
};
inline ARM_Interface& GetRunningCore() {
[[nodiscard]] inline ARM_Interface& GetRunningCore() {
return System::GetInstance().GetRunningCore();
}
inline ARM_Interface& GetCore(u32 core_id) {
[[nodiscard]] inline ARM_Interface& GetCore(u32 core_id) {
return System::GetInstance().GetCore(core_id);
}
inline u32 GetNumCores() {
[[nodiscard]] inline u32 GetNumCores() {
return System::GetInstance().GetNumCores();
}
inline AudioCore::DspInterface& DSP() {
[[nodiscard]] inline AudioCore::DspInterface& DSP() {
return System::GetInstance().DSP();
}