From a9369726147c7499e0016e183d5d56a7b44efe4b Mon Sep 17 00:00:00 2001 From: Liam Date: Sat, 18 Feb 2023 16:26:48 -0500 Subject: service: refactor server architecture Converts services to have their own processes --- src/core/hle/kernel/service_thread.cpp | 206 --------------------------------- 1 file changed, 206 deletions(-) delete mode 100644 src/core/hle/kernel/service_thread.cpp (limited to 'src/core/hle/kernel/service_thread.cpp') diff --git a/src/core/hle/kernel/service_thread.cpp b/src/core/hle/kernel/service_thread.cpp deleted file mode 100644 index 38afa720b..000000000 --- a/src/core/hle/kernel/service_thread.cpp +++ /dev/null @@ -1,206 +0,0 @@ -// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project -// SPDX-License-Identifier: GPL-2.0-or-later - -#include -#include -#include -#include -#include - -#include "common/polyfill_thread.h" -#include "common/scope_exit.h" -#include "common/thread.h" -#include "core/hle/ipc_helpers.h" -#include "core/hle/kernel/hle_ipc.h" -#include "core/hle/kernel/k_event.h" -#include "core/hle/kernel/k_scoped_resource_reservation.h" -#include "core/hle/kernel/k_session.h" -#include "core/hle/kernel/k_thread.h" -#include "core/hle/kernel/kernel.h" -#include "core/hle/kernel/service_thread.h" - -namespace Kernel { - -class ServiceThread::Impl final { -public: - explicit Impl(KernelCore& kernel, const std::string& service_name); - ~Impl(); - - void WaitAndProcessImpl(); - void SessionClosed(KServerSession* server_session, - std::shared_ptr manager); - void LoopProcess(); - - void RegisterServerSession(KServerSession* session, - std::shared_ptr manager); - -private: - KernelCore& kernel; - const std::string m_service_name; - - std::jthread m_host_thread{}; - std::mutex m_session_mutex{}; - std::map> m_sessions{}; - KEvent* m_wakeup_event{}; - KThread* m_thread{}; - std::atomic m_shutdown_requested{}; -}; - -void ServiceThread::Impl::WaitAndProcessImpl() { - // Create local list of waitable sessions. - std::vector objs; - std::vector> managers; - - { - // Lock to get the set. - std::scoped_lock lk{m_session_mutex}; - - // Reserve the needed quantity. - objs.reserve(m_sessions.size() + 1); - managers.reserve(m_sessions.size()); - - // Copy to our local list. - for (const auto& [session, manager] : m_sessions) { - objs.push_back(session); - managers.push_back(manager); - } - - // Insert the wakeup event at the end. - objs.push_back(&m_wakeup_event->GetReadableEvent()); - } - - // Wait on the list of sessions. - s32 index{-1}; - Result rc = KSynchronizationObject::Wait(kernel, &index, objs.data(), - static_cast(objs.size()), -1); - ASSERT(!rc.IsFailure()); - - // If this was the wakeup event, clear it and finish. - if (index >= static_cast(objs.size() - 1)) { - m_wakeup_event->Clear(); - return; - } - - // This event is from a server session. - auto* server_session = static_cast(objs[index]); - auto& manager = managers[index]; - - // Fetch the HLE request context. - std::shared_ptr context; - rc = server_session->ReceiveRequest(&context, manager); - - // If the session was closed, handle that. - if (rc == ResultSessionClosed) { - SessionClosed(server_session, manager); - - // Finish. - return; - } - - // TODO: handle other cases - ASSERT(rc == ResultSuccess); - - // Perform the request. - Result service_rc = manager->CompleteSyncRequest(server_session, *context); - - // Reply to the client. - rc = server_session->SendReplyHLE(); - - if (rc == ResultSessionClosed || service_rc == IPC::ERR_REMOTE_PROCESS_DEAD) { - SessionClosed(server_session, manager); - return; - } - - // TODO: handle other cases - ASSERT(rc == ResultSuccess); - ASSERT(service_rc == ResultSuccess); -} - -void ServiceThread::Impl::SessionClosed(KServerSession* server_session, - std::shared_ptr manager) { - { - // Lock to get the set. - std::scoped_lock lk{m_session_mutex}; - - // Erase the session. - ASSERT(m_sessions.erase(server_session) == 1); - } - - // Close our reference to the server session. - server_session->Close(); -} - -void ServiceThread::Impl::LoopProcess() { - Common::SetCurrentThreadName(m_service_name.c_str()); - - kernel.RegisterHostThread(m_thread); - - while (!m_shutdown_requested.load()) { - WaitAndProcessImpl(); - } -} - -void ServiceThread::Impl::RegisterServerSession(KServerSession* server_session, - std::shared_ptr manager) { - // Open the server session. - server_session->Open(); - - { - // Lock to get the set. - std::scoped_lock lk{m_session_mutex}; - - // Insert the session and manager. - m_sessions[server_session] = manager; - } - - // Signal the wakeup event. - m_wakeup_event->Signal(); -} - -ServiceThread::Impl::~Impl() { - // Shut down the processing thread. - m_shutdown_requested.store(true); - m_wakeup_event->Signal(); - m_host_thread.join(); - - // Close all remaining sessions. - for (const auto& [server_session, manager] : m_sessions) { - server_session->Close(); - } - - // Destroy remaining managers. - m_sessions.clear(); - - // Close event. - m_wakeup_event->GetReadableEvent().Close(); - m_wakeup_event->Close(); - - // Close thread. - m_thread->Close(); -} - -ServiceThread::Impl::Impl(KernelCore& kernel_, const std::string& service_name) - : kernel{kernel_}, m_service_name{service_name} { - // Initialize event. - m_wakeup_event = KEvent::Create(kernel); - m_wakeup_event->Initialize(nullptr); - - // Initialize thread. - m_thread = KThread::Create(kernel); - ASSERT(KThread::InitializeDummyThread(m_thread, nullptr).IsSuccess()); - - // Start thread. - m_host_thread = std::jthread([this] { LoopProcess(); }); -} - -ServiceThread::ServiceThread(KernelCore& kernel, const std::string& name) - : impl{std::make_unique(kernel, name)} {} - -ServiceThread::~ServiceThread() = default; - -void ServiceThread::RegisterServerSession(KServerSession* session, - std::shared_ptr manager) { - impl->RegisterServerSession(session, manager); -} - -} // namespace Kernel -- cgit v1.2.3