From 7d77a3f88f7a1e68d9846ca7c69cce051d1a33d2 Mon Sep 17 00:00:00 2001 From: bunnei Date: Mon, 28 Dec 2020 18:23:42 -0800 Subject: hle: service: Acquire and release a lock on requests. - This makes it such that we can safely access service members from CoreTiming thread. --- src/core/hle/service/audio/audout_u.cpp | 6 ++++-- src/core/hle/service/audio/audren_u.cpp | 14 +++++++------- src/core/hle/service/hid/hid.cpp | 2 ++ src/core/hle/service/service.cpp | 22 ++++++++++------------ src/core/hle/service/service.h | 16 ++++++++++++---- 5 files changed, 35 insertions(+), 25 deletions(-) (limited to 'src/core/hle') diff --git a/src/core/hle/service/audio/audout_u.cpp b/src/core/hle/service/audio/audout_u.cpp index 145f47ee2..0cd797109 100644 --- a/src/core/hle/service/audio/audout_u.cpp +++ b/src/core/hle/service/audio/audout_u.cpp @@ -70,8 +70,10 @@ public: Kernel::WritableEvent::CreateEventPair(system.Kernel(), "IAudioOutBufferReleased"); stream = audio_core.OpenStream(system.CoreTiming(), audio_params.sample_rate, - audio_params.channel_count, std::move(unique_name), - [this] { buffer_event.writable->Signal(); }); + audio_params.channel_count, std::move(unique_name), [this] { + const auto guard = LockService(); + buffer_event.writable->Signal(); + }); } private: diff --git a/src/core/hle/service/audio/audren_u.cpp b/src/core/hle/service/audio/audren_u.cpp index 6e7b7316c..c5c22d053 100644 --- a/src/core/hle/service/audio/audren_u.cpp +++ b/src/core/hle/service/audio/audren_u.cpp @@ -49,16 +49,16 @@ public: system_event = Kernel::WritableEvent::CreateEventPair(system.Kernel(), "IAudioRenderer:SystemEvent"); - renderer = std::make_unique(system.CoreTiming(), system.Memory(), - audren_params, system_event.writable, - instance_number); + renderer = std::make_unique( + system.CoreTiming(), system.Memory(), audren_params, + [this]() { + const auto guard = LockService(); + system_event.writable->Signal(); + }, + instance_number); } private: - void UpdateAudioCallback() { - system_event.writable->Signal(); - } - void GetSampleRate(Kernel::HLERequestContext& ctx) { LOG_DEBUG(Service_Audio, "called"); diff --git a/src/core/hle/service/hid/hid.cpp b/src/core/hle/service/hid/hid.cpp index b3c7234e1..8d95f74e6 100644 --- a/src/core/hle/service/hid/hid.cpp +++ b/src/core/hle/service/hid/hid.cpp @@ -78,11 +78,13 @@ IAppletResource::IAppletResource(Core::System& system_) pad_update_event = Core::Timing::CreateEvent( "HID::UpdatePadCallback", [this](std::uintptr_t user_data, std::chrono::nanoseconds ns_late) { + const auto guard = LockService(); UpdateControllers(user_data, ns_late); }); motion_update_event = Core::Timing::CreateEvent( "HID::MotionPadCallback", [this](std::uintptr_t user_data, std::chrono::nanoseconds ns_late) { + const auto guard = LockService(); UpdateMotion(user_data, ns_late); }); diff --git a/src/core/hle/service/service.cpp b/src/core/hle/service/service.cpp index d55fba831..ff2a5b1db 100644 --- a/src/core/hle/service/service.cpp +++ b/src/core/hle/service/service.cpp @@ -95,9 +95,14 @@ ServiceFrameworkBase::ServiceFrameworkBase(Core::System& system_, const char* se : system{system_}, service_name{service_name_}, max_sessions{max_sessions_}, handler_invoker{handler_invoker_} {} -ServiceFrameworkBase::~ServiceFrameworkBase() = default; +ServiceFrameworkBase::~ServiceFrameworkBase() { + // Wait for other threads to release access before destroying + const auto guard = LockService(); +} void ServiceFrameworkBase::InstallAsService(SM::ServiceManager& service_manager) { + const auto guard = LockService(); + ASSERT(!port_installed); auto port = service_manager.RegisterService(service_name, max_sessions).Unwrap(); @@ -106,6 +111,8 @@ void ServiceFrameworkBase::InstallAsService(SM::ServiceManager& service_manager) } void ServiceFrameworkBase::InstallAsNamedPort(Kernel::KernelCore& kernel) { + const auto guard = LockService(); + ASSERT(!port_installed); auto [server_port, client_port] = @@ -115,17 +122,6 @@ void ServiceFrameworkBase::InstallAsNamedPort(Kernel::KernelCore& kernel) { port_installed = true; } -std::shared_ptr ServiceFrameworkBase::CreatePort(Kernel::KernelCore& kernel) { - ASSERT(!port_installed); - - auto [server_port, client_port] = - Kernel::ServerPort::CreatePortPair(kernel, max_sessions, service_name); - auto port = MakeResult(std::move(server_port)).Unwrap(); - port->SetHleHandler(shared_from_this()); - port_installed = true; - return client_port; -} - void ServiceFrameworkBase::RegisterHandlersBase(const FunctionInfoBase* functions, std::size_t n) { handlers.reserve(handlers.size() + n); for (std::size_t i = 0; i < n; ++i) { @@ -164,6 +160,8 @@ void ServiceFrameworkBase::InvokeRequest(Kernel::HLERequestContext& ctx) { } ResultCode ServiceFrameworkBase::HandleSyncRequest(Kernel::HLERequestContext& context) { + const auto guard = LockService(); + switch (context.GetCommandType()) { case IPC::CommandType::Close: { IPC::ResponseBuilder rb{context, 2}; diff --git a/src/core/hle/service/service.h b/src/core/hle/service/service.h index 62a182310..916445517 100644 --- a/src/core/hle/service/service.h +++ b/src/core/hle/service/service.h @@ -5,9 +5,11 @@ #pragma once #include +#include #include #include #include "common/common_types.h" +#include "common/spin_lock.h" #include "core/hle/kernel/hle_ipc.h" #include "core/hle/kernel/object.h" @@ -68,11 +70,9 @@ public: void InstallAsService(SM::ServiceManager& service_manager); /// Creates a port pair and registers it on the kernel's global port registry. void InstallAsNamedPort(Kernel::KernelCore& kernel); - /// Creates and returns an unregistered port for the service. - std::shared_ptr CreatePort(Kernel::KernelCore& kernel); - + /// Invokes a service request routine. void InvokeRequest(Kernel::HLERequestContext& ctx); - + /// Handles a synchronization request for the service. ResultCode HandleSyncRequest(Kernel::HLERequestContext& context) override; protected: @@ -80,6 +80,11 @@ protected: template using HandlerFnP = void (Self::*)(Kernel::HLERequestContext&); + /// Used to gain exclusive access to the service members, e.g. from CoreTiming thread. + [[nodiscard]] std::scoped_lock LockService() { + return std::scoped_lock{lock_service}; + } + /// System context that the service operates under. Core::System& system; @@ -115,6 +120,9 @@ private: /// Function used to safely up-cast pointers to the derived class before invoking a handler. InvokerFn* handler_invoker; boost::container::flat_map handlers; + + /// Used to gain exclusive access to the service members, e.g. from CoreTiming thread. + Common::SpinLock lock_service; }; /** -- cgit v1.2.3