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author | bunnei <bunneidev@gmail.com> | 2020-12-12 01:44:27 +0100 |
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committer | bunnei <bunneidev@gmail.com> | 2020-12-29 01:33:48 +0100 |
commit | 87d6588cb5c3ba5de34c647abec65b0209484930 (patch) | |
tree | 86ddd76c86b17861264ccba7bf27e5619c36f19f /src/core/hle/service/sockets/blocking_worker.h | |
parent | hle: service: nvdrv: Revert #4981 to remove usage of SleepClientThread. (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/core/hle/service/sockets/blocking_worker.h | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/src/core/hle/service/sockets/blocking_worker.h b/src/core/hle/service/sockets/blocking_worker.h deleted file mode 100644 index 2d53e52b6..000000000 --- a/src/core/hle/service/sockets/blocking_worker.h +++ /dev/null @@ -1,161 +0,0 @@ -// Copyright 2020 yuzu emulator team -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include <atomic> -#include <memory> -#include <string> -#include <string_view> -#include <thread> -#include <variant> -#include <vector> - -#include <fmt/format.h> - -#include "common/assert.h" -#include "common/microprofile.h" -#include "common/thread.h" -#include "core/core.h" -#include "core/hle/kernel/hle_ipc.h" -#include "core/hle/kernel/kernel.h" -#include "core/hle/kernel/thread.h" -#include "core/hle/kernel/writable_event.h" - -namespace Service::Sockets { - -/** - * Worker abstraction to execute blocking calls on host without blocking the guest thread - * - * @tparam Service Service where the work is executed - * @tparam Types Types of work to execute - */ -template <class Service, class... Types> -class BlockingWorker { - using This = BlockingWorker<Service, Types...>; - using WorkVariant = std::variant<std::monostate, Types...>; - -public: - /// Create a new worker - static std::unique_ptr<This> Create(Core::System& system, Service* service, - std::string_view name) { - return std::unique_ptr<This>(new This(system, service, name)); - } - - ~BlockingWorker() { - while (!is_available.load(std::memory_order_relaxed)) { - // Busy wait until work is finished - std::this_thread::yield(); - } - // Monostate means to exit the thread - work = std::monostate{}; - work_event.Set(); - thread.join(); - } - - /** - * Try to capture the worker to send work after a success - * @returns True when the worker has been successfully captured - */ - bool TryCapture() { - bool expected = true; - return is_available.compare_exchange_weak(expected, false, std::memory_order_relaxed, - std::memory_order_relaxed); - } - - /** - * Send work to this worker abstraction - * @see TryCapture must be called before attempting to call this function - */ - template <class Work> - void SendWork(Work new_work) { - ASSERT_MSG(!is_available, "Trying to send work on a worker that's not captured"); - work = std::move(new_work); - work_event.Set(); - } - - /// Generate a callback for @see SleepClientThread - template <class Work> - auto Callback() { - return [this](std::shared_ptr<Kernel::Thread>, Kernel::HLERequestContext& ctx, - Kernel::ThreadWakeupReason reason) { - ASSERT(reason == Kernel::ThreadWakeupReason::Signal); - std::get<Work>(work).Response(ctx); - is_available.store(true); - }; - } - - /// Get kernel event that will be signalled by the worker when the host operation finishes - std::shared_ptr<Kernel::WritableEvent> KernelEvent() const { - return kernel_event; - } - -private: - explicit BlockingWorker(Core::System& system, Service* service, std::string_view name) { - auto pair = Kernel::WritableEvent::CreateEventPair(system.Kernel(), std::string(name)); - kernel_event = std::move(pair.writable); - thread = std::thread([this, &system, service, name] { Run(system, service, name); }); - } - - void Run(Core::System& system, Service* service, std::string_view name) { - system.RegisterHostThread(); - - const std::string thread_name = fmt::format("yuzu:{}", name); - MicroProfileOnThreadCreate(thread_name.c_str()); - Common::SetCurrentThreadName(thread_name.c_str()); - - bool keep_running = true; - while (keep_running) { - work_event.Wait(); - - const auto visit_fn = [service, &keep_running]<typename T>(T&& w) { - if constexpr (std::is_same_v<std::decay_t<T>, std::monostate>) { - keep_running = false; - } else { - w.Execute(service); - } - }; - std::visit(visit_fn, work); - - kernel_event->Signal(); - } - } - - std::thread thread; - WorkVariant work; - Common::Event work_event; - std::shared_ptr<Kernel::WritableEvent> kernel_event; - std::atomic_bool is_available{true}; -}; - -template <class Service, class... Types> -class BlockingWorkerPool { - using Worker = BlockingWorker<Service, Types...>; - -public: - explicit BlockingWorkerPool(Core::System& system_, Service* service_) - : system{system_}, service{service_} {} - - /// Returns a captured worker thread, creating new ones if necessary - Worker* CaptureWorker() { - for (auto& worker : workers) { - if (worker->TryCapture()) { - return worker.get(); - } - } - auto new_worker = Worker::Create(system, service, fmt::format("BSD:{}", workers.size())); - [[maybe_unused]] const bool success = new_worker->TryCapture(); - ASSERT(success); - - return workers.emplace_back(std::move(new_worker)).get(); - } - -private: - Core::System& system; - Service* const service; - - std::vector<std::unique_ptr<Worker>> workers; -}; - -} // namespace Service::Sockets |