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Merge pull request #8122 from bunnei/improve-thread-usage

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Improve usage of service host threads
This commit is contained in:
bunnei
2022-04-06 12:25:25 -07:00
committed by GitHub
parent 37199c5f90 93f010c988
commit eb8c8db899
13 changed files with 74 additions and 27 deletions
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11
src/core/hle/kernel/hle_ipc.cpp
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@@ -24,8 +24,15 @@
namespace Kernel {
SessionRequestHandler::SessionRequestHandler(KernelCore& kernel_, const char* service_name_)
: kernel{kernel_}, service_thread{kernel.CreateServiceThread(service_name_)} {}
SessionRequestHandler::SessionRequestHandler(KernelCore& kernel_, const char* service_name_,
ServiceThreadType thread_type)
: kernel{kernel_} {
if (thread_type == ServiceThreadType::CreateNew) {
service_thread = kernel.CreateServiceThread(service_name_);
} else {
service_thread = kernel.GetDefaultServiceThread();
}
}
SessionRequestHandler::~SessionRequestHandler() {
kernel.ReleaseServiceThread(service_thread);

8
src/core/hle/kernel/hle_ipc.h
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@@ -33,6 +33,11 @@ namespace Service {
class ServiceFrameworkBase;
}
enum class ServiceThreadType {
Default,
CreateNew,
};
namespace Kernel {
class Domain;
@@ -57,7 +62,8 @@ enum class ThreadWakeupReason;
*/
class SessionRequestHandler : public std::enable_shared_from_this<SessionRequestHandler> {
public:
SessionRequestHandler(KernelCore& kernel, const char* service_name_);
SessionRequestHandler(KernelCore& kernel_, const char* service_name_,
ServiceThreadType thread_type);
virtual ~SessionRequestHandler();
/**

14
src/core/hle/kernel/kernel.cpp
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@@ -61,6 +61,7 @@ struct KernelCore::Impl {
global_scheduler_context = std::make_unique<Kernel::GlobalSchedulerContext>(kernel);
global_handle_table = std::make_unique<Kernel::KHandleTable>(kernel);
global_handle_table->Initialize(KHandleTable::MaxTableSize);
default_service_thread = CreateServiceThread(kernel, "DefaultServiceThread");
is_phantom_mode_for_singlecore = false;
@@ -677,6 +678,12 @@ struct KernelCore::Impl {
void ReleaseServiceThread(std::weak_ptr<Kernel::ServiceThread> service_thread) {
if (auto strong_ptr = service_thread.lock()) {
if (strong_ptr == default_service_thread.lock()) {
// Nothing to do here, the service is using default_service_thread, which will be
// released on shutdown.
return;
}
service_threads_manager.QueueWork(
[this, strong_ptr{std::move(strong_ptr)}]() { service_threads.erase(strong_ptr); });
}
@@ -739,7 +746,8 @@ struct KernelCore::Impl {
std::unique_ptr<KMemoryLayout> memory_layout;
// Threads used for services
std::unordered_set<std::shared_ptr<Kernel::ServiceThread>> service_threads;
std::unordered_set<std::shared_ptr<ServiceThread>> service_threads;
std::weak_ptr<ServiceThread> default_service_thread;
Common::ThreadWorker service_threads_manager;
std::array<KThread*, Core::Hardware::NUM_CPU_CORES> suspend_threads;
@@ -1065,6 +1073,10 @@ std::weak_ptr<Kernel::ServiceThread> KernelCore::CreateServiceThread(const std::
return impl->CreateServiceThread(*this, name);
}
std::weak_ptr<Kernel::ServiceThread> KernelCore::GetDefaultServiceThread() const {
return impl->default_service_thread;
}
void KernelCore::ReleaseServiceThread(std::weak_ptr<Kernel::ServiceThread> service_thread) {
impl->ReleaseServiceThread(service_thread);
}

16
src/core/hle/kernel/kernel.h
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@@ -271,15 +271,25 @@ public:
void ExitSVCProfile();
/**
* Creates an HLE service thread, which are used to execute service routines asynchronously.
* While these are allocated per ServerSession, these need to be owned and managed outside
* of ServerSession to avoid a circular dependency.
* Creates a host thread to execute HLE service requests, which are used to execute service
* routines asynchronously. While these are allocated per ServerSession, these need to be owned
* and managed outside of ServerSession to avoid a circular dependency. In general, most
* services can just use the default service thread, and not need their own host service thread.
* See GetDefaultServiceThread.
* @param name String name for the ServerSession creating this thread, used for debug
* purposes.
* @returns The a weak pointer newly created service thread.
*/
std::weak_ptr<Kernel::ServiceThread> CreateServiceThread(const std::string& name);
/**
* Gets the default host service thread, which executes HLE service requests. Unless service
* requests need to block on the host, the default service thread should be used in favor of
* creating a new service thread.
* @returns The a weak pointer for the default service thread.
*/
std::weak_ptr<Kernel::ServiceThread> GetDefaultServiceThread() const;
/**
* Releases a HLE service thread, instructing KernelCore to free it. This should be called when
* the ServerSession associated with the thread is destroyed.

7
src/core/hle/service/audio/audout_u.cpp
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@@ -41,9 +41,10 @@ public:
explicit IAudioOut(Core::System& system_, AudoutParams audio_params_,
AudioCore::AudioOut& audio_core_, std::string&& device_name_,
std::string&& unique_name)
: ServiceFramework{system_, "IAudioOut"}, audio_core{audio_core_},
device_name{std::move(device_name_)}, audio_params{audio_params_},
main_memory{system.Memory()}, service_context{system_, "IAudioOut"} {
: ServiceFramework{system_, "IAudioOut", ServiceThreadType::CreateNew},
audio_core{audio_core_}, device_name{std::move(device_name_)},
audio_params{audio_params_}, main_memory{system.Memory()}, service_context{system_,
"IAudioOut"} {
// clang-format off
static const FunctionInfo functions[] = {
{0, &IAudioOut::GetAudioOutState, "GetAudioOutState"},

3
src/core/hle/service/audio/audren_u.cpp
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@@ -24,7 +24,8 @@ public:
explicit IAudioRenderer(Core::System& system_,
const AudioCommon::AudioRendererParameter& audren_params,
const std::size_t instance_number)
: ServiceFramework{system_, "IAudioRenderer"}, service_context{system_, "IAudioRenderer"} {
: ServiceFramework{system_, "IAudioRenderer", ServiceThreadType::CreateNew},
service_context{system_, "IAudioRenderer"} {
// clang-format off
static const FunctionInfo functions[] = {
{0, &IAudioRenderer::GetSampleRate, "GetSampleRate"},

13
src/core/hle/service/filesystem/fsp_srv.cpp
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@@ -58,7 +58,8 @@ enum class FileSystemType : u8 {
class IStorage final : public ServiceFramework<IStorage> {
public:
explicit IStorage(Core::System& system_, FileSys::VirtualFile backend_)
: ServiceFramework{system_, "IStorage"}, backend(std::move(backend_)) {
: ServiceFramework{system_, "IStorage", ServiceThreadType::CreateNew},
backend(std::move(backend_)) {
static const FunctionInfo functions[] = {
{0, &IStorage::Read, "Read"},
{1, nullptr, "Write"},
@@ -116,7 +117,8 @@ private:
class IFile final : public ServiceFramework<IFile> {
public:
explicit IFile(Core::System& system_, FileSys::VirtualFile backend_)
: ServiceFramework{system_, "IFile"}, backend(std::move(backend_)) {
: ServiceFramework{system_, "IFile", ServiceThreadType::CreateNew},
backend(std::move(backend_)) {
static const FunctionInfo functions[] = {
{0, &IFile::Read, "Read"},
{1, &IFile::Write, "Write"},
@@ -252,7 +254,8 @@ static void BuildEntryIndex(std::vector<FileSys::Entry>& entries, const std::vec
class IDirectory final : public ServiceFramework<IDirectory> {
public:
explicit IDirectory(Core::System& system_, FileSys::VirtualDir backend_)
: ServiceFramework{system_, "IDirectory"}, backend(std::move(backend_)) {
: ServiceFramework{system_, "IDirectory", ServiceThreadType::CreateNew},
backend(std::move(backend_)) {
static const FunctionInfo functions[] = {
{0, &IDirectory::Read, "Read"},
{1, &IDirectory::GetEntryCount, "GetEntryCount"},
@@ -308,8 +311,8 @@ private:
class IFileSystem final : public ServiceFramework<IFileSystem> {
public:
explicit IFileSystem(Core::System& system_, FileSys::VirtualDir backend_, SizeGetter size_)
: ServiceFramework{system_, "IFileSystem"}, backend{std::move(backend_)}, size{std::move(
size_)} {
: ServiceFramework{system_, "IFileSystem", ServiceThreadType::CreateNew},
backend{std::move(backend_)}, size{std::move(size_)} {
static const FunctionInfo functions[] = {
{0, &IFileSystem::CreateFile, "CreateFile"},
{1, &IFileSystem::DeleteFile, "DeleteFile"},

2
src/core/hle/service/nvdrv/nvdrv_interface.cpp
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@@ -230,7 +230,7 @@ void NVDRV::DumpGraphicsMemoryInfo(Kernel::HLERequestContext& ctx) {
}
NVDRV::NVDRV(Core::System& system_, std::shared_ptr<Module> nvdrv_, const char* name)
: ServiceFramework{system_, name}, nvdrv{std::move(nvdrv_)} {
: ServiceFramework{system_, name, ServiceThreadType::CreateNew}, nvdrv{std::move(nvdrv_)} {
static const FunctionInfo functions[] = {
{0, &NVDRV::Open, "Open"},
{1, &NVDRV::Ioctl1, "Ioctl"},

5
src/core/hle/service/service.cpp
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@@ -91,8 +91,9 @@ namespace Service {
}
ServiceFrameworkBase::ServiceFrameworkBase(Core::System& system_, const char* service_name_,
u32 max_sessions_, InvokerFn* handler_invoker_)
: SessionRequestHandler(system_.Kernel(), service_name_), system{system_},
ServiceThreadType thread_type, u32 max_sessions_,
InvokerFn* handler_invoker_)
: SessionRequestHandler(system_.Kernel(), service_name_, thread_type), system{system_},
service_name{service_name_}, max_sessions{max_sessions_}, handler_invoker{handler_invoker_} {}
ServiceFrameworkBase::~ServiceFrameworkBase() {

14
src/core/hle/service/service.h
View File

@@ -114,7 +114,8 @@ private:
Kernel::HLERequestContext& ctx);
explicit ServiceFrameworkBase(Core::System& system_, const char* service_name_,
u32 max_sessions_, InvokerFn* handler_invoker_);
ServiceThreadType thread_type, u32 max_sessions_,
InvokerFn* handler_invoker_);
~ServiceFrameworkBase() override;
void RegisterHandlersBase(const FunctionInfoBase* functions, std::size_t n);
@@ -176,14 +177,17 @@ protected:
/**
* Initializes the handler with no functions installed.
*
* @param system_ The system context to construct this service under.
* @param system_ The system context to construct this service under.
* @param service_name_ Name of the service.
* @param max_sessions_ Maximum number of sessions that can be
* connected to this service at the same time.
* @param thread_type Specifies the thread type for this service. If this is set to CreateNew,
* it creates a new thread for it, otherwise this uses the default thread.
* @param max_sessions_ Maximum number of sessions that can be connected to this service at the
* same time.
*/
explicit ServiceFramework(Core::System& system_, const char* service_name_,
ServiceThreadType thread_type = ServiceThreadType::Default,
u32 max_sessions_ = ServerSessionCountMax)
: ServiceFrameworkBase(system_, service_name_, max_sessions_, Invoker) {}
: ServiceFrameworkBase(system_, service_name_, thread_type, max_sessions_, Invoker) {}
/// Registers handlers in the service.
template <std::size_t N>

2
src/core/hle/service/sm/sm.cpp
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@@ -206,7 +206,7 @@ void SM::UnregisterService(Kernel::HLERequestContext& ctx) {
}
SM::SM(ServiceManager& service_manager_, Core::System& system_)
: ServiceFramework{system_, "sm:", 4},
: ServiceFramework{system_, "sm:", ServiceThreadType::Default, 4},
service_manager{service_manager_}, kernel{system_.Kernel()} {
RegisterHandlers({
{0, &SM::Initialize, "Initialize"},

3
src/core/hle/service/sockets/bsd.cpp
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@@ -837,7 +837,8 @@ void BSD::BuildErrnoResponse(Kernel::HLERequestContext& ctx, Errno bsd_errno) co
rb.PushEnum(bsd_errno);
}
BSD::BSD(Core::System& system_, const char* name) : ServiceFramework{system_, name} {
BSD::BSD(Core::System& system_, const char* name)
: ServiceFramework{system_, name, ServiceThreadType::CreateNew} {
// clang-format off
static const FunctionInfo functions[] = {
{0, &BSD::RegisterClient, "RegisterClient"},

3
src/core/hle/service/vi/vi.cpp
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@@ -77,7 +77,8 @@ static_assert(sizeof(NativeWindow) == 0x28, "NativeWindow has wrong size");
class IHOSBinderDriver final : public ServiceFramework<IHOSBinderDriver> {
public:
explicit IHOSBinderDriver(Core::System& system_, NVFlinger::HosBinderDriverServer& server_)
: ServiceFramework{system_, "IHOSBinderDriver"}, server(server_) {
: ServiceFramework{system_, "IHOSBinderDriver", ServiceThreadType::CreateNew},
server(server_) {
static const FunctionInfo functions[] = {
{0, &IHOSBinderDriver::TransactParcel, "TransactParcel"},
{1, &IHOSBinderDriver::AdjustRefcount, "AdjustRefcount"},