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Merge pull request #6428 from bunnei/service-thread-crash-fix
hle: kernel: Remove service thread manager and use weak_ptr.
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commit
3c621d37f0
@ -41,6 +41,21 @@ SessionRequestManager::SessionRequestManager(KernelCore& kernel_) : kernel{kerne
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SessionRequestManager::~SessionRequestManager() = default;
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bool SessionRequestManager::HasSessionRequestHandler(const HLERequestContext& context) const {
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if (IsDomain() && context.HasDomainMessageHeader()) {
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const auto& message_header = context.GetDomainMessageHeader();
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const auto object_id = message_header.object_id;
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if (object_id > DomainHandlerCount()) {
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LOG_CRITICAL(IPC, "object_id {} is too big!", object_id);
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return false;
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}
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return DomainHandler(object_id - 1) != nullptr;
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} else {
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return session_handler != nullptr;
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}
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}
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void SessionRequestHandler::ClientConnected(KServerSession* session) {
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session->SetSessionHandler(shared_from_this());
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}
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@ -85,8 +85,8 @@ public:
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*/
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void ClientDisconnected(KServerSession* session);
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std::shared_ptr<ServiceThread> GetServiceThread() const {
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return service_thread.lock();
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std::weak_ptr<ServiceThread> GetServiceThread() const {
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return service_thread;
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}
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protected:
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@ -152,10 +152,12 @@ public:
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session_handler = std::move(handler);
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}
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std::shared_ptr<ServiceThread> GetServiceThread() const {
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std::weak_ptr<ServiceThread> GetServiceThread() const {
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return session_handler->GetServiceThread();
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}
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bool HasSessionRequestHandler(const HLERequestContext& context) const;
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private:
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bool is_domain{};
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SessionRequestHandlerPtr session_handler;
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@ -163,7 +165,6 @@ private:
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private:
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KernelCore& kernel;
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std::weak_ptr<ServiceThread> service_thread;
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};
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/**
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@ -8,6 +8,7 @@
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#include "common/assert.h"
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#include "common/common_types.h"
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#include "common/logging/log.h"
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#include "common/scope_exit.h"
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#include "core/core_timing.h"
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#include "core/hle/ipc_helpers.h"
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#include "core/hle/kernel/hle_ipc.h"
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@ -119,11 +120,25 @@ ResultCode KServerSession::QueueSyncRequest(KThread* thread, Core::Memory::Memor
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context->PopulateFromIncomingCommandBuffer(kernel.CurrentProcess()->GetHandleTable(), cmd_buf);
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if (auto strong_ptr = manager->GetServiceThread(); strong_ptr) {
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// In the event that something fails here, stub a result to prevent the game from crashing.
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// This is a work-around in the event that somehow we process a service request after the
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// session has been closed by the game. This has been observed to happen rarely in Pokemon
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// Sword/Shield and is likely a result of us using host threads/scheduling for services.
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// TODO(bunnei): Find a better solution here.
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auto error_guard = SCOPE_GUARD({ CompleteSyncRequest(*context); });
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// Ensure we have a session request handler
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if (manager->HasSessionRequestHandler(*context)) {
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if (auto strong_ptr = manager->GetServiceThread().lock()) {
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strong_ptr->QueueSyncRequest(*parent, std::move(context));
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return ResultSuccess;
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// We succeeded.
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error_guard.Cancel();
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} else {
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ASSERT_MSG(false, "strong_ptr was nullptr!");
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ASSERT_MSG(false, "strong_ptr is nullptr!");
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}
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} else {
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ASSERT_MSG(false, "handler is invalid!");
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}
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return ResultSuccess;
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@ -131,7 +146,9 @@ ResultCode KServerSession::QueueSyncRequest(KThread* thread, Core::Memory::Memor
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ResultCode KServerSession::CompleteSyncRequest(HLERequestContext& context) {
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ResultCode result = ResultSuccess;
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// If the session has been converted to a domain, handle the domain request
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if (manager->HasSessionRequestHandler(context)) {
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if (IsDomain() && context.HasDomainMessageHeader()) {
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result = HandleDomainSyncRequest(context);
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// If there is no domain header, the regular session handler is used
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@ -139,6 +156,11 @@ ResultCode KServerSession::CompleteSyncRequest(HLERequestContext& context) {
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// If this ServerSession has an associated HLE handler, forward the request to it.
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result = manager->SessionHandler().HandleSyncRequest(*this, context);
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}
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} else {
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ASSERT_MSG(false, "Session handler is invalid, stubbing response!");
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IPC::ResponseBuilder rb(context, 2);
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rb.Push(ResultSuccess);
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}
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if (convert_to_domain) {
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ASSERT_MSG(!IsDomain(), "ServerSession is already a domain instance.");
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@ -63,8 +63,6 @@ struct KernelCore::Impl {
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global_scheduler_context = std::make_unique<Kernel::GlobalSchedulerContext>(kernel);
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global_handle_table = std::make_unique<Kernel::KHandleTable>(kernel);
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service_thread_manager =
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std::make_unique<Common::ThreadWorker>(1, "yuzu:ServiceThreadManager");
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is_phantom_mode_for_singlecore = false;
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InitializePhysicalCores();
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@ -96,7 +94,6 @@ struct KernelCore::Impl {
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process_list.clear();
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// Ensures all service threads gracefully shutdown
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service_thread_manager.reset();
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service_threads.clear();
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next_object_id = 0;
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@ -680,10 +677,6 @@ struct KernelCore::Impl {
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// Threads used for services
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std::unordered_set<std::shared_ptr<Kernel::ServiceThread>> service_threads;
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// Service threads are managed by a worker thread, so that a calling service thread can queue up
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// the release of itself
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std::unique_ptr<Common::ThreadWorker> service_thread_manager;
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std::array<KThread*, Core::Hardware::NUM_CPU_CORES> suspend_threads;
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std::array<Core::CPUInterruptHandler, Core::Hardware::NUM_CPU_CORES> interrupts{};
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std::array<std::unique_ptr<Kernel::KScheduler>, Core::Hardware::NUM_CPU_CORES> schedulers{};
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@ -986,17 +979,14 @@ void KernelCore::ExitSVCProfile() {
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std::weak_ptr<Kernel::ServiceThread> KernelCore::CreateServiceThread(const std::string& name) {
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auto service_thread = std::make_shared<Kernel::ServiceThread>(*this, 1, name);
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impl->service_thread_manager->QueueWork(
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[this, service_thread] { impl->service_threads.emplace(service_thread); });
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impl->service_threads.emplace(service_thread);
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return service_thread;
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}
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void KernelCore::ReleaseServiceThread(std::weak_ptr<Kernel::ServiceThread> service_thread) {
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impl->service_thread_manager->QueueWork([this, service_thread] {
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if (auto strong_ptr = service_thread.lock()) {
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impl->service_threads.erase(strong_ptr);
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}
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});
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}
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Init::KSlabResourceCounts& KernelCore::SlabResourceCounts() {
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