diff options
Diffstat (limited to '')
-rw-r--r-- | src/common/CMakeLists.txt | 2 | ||||
-rw-r--r-- | src/common/concepts.h | 4 | ||||
-rw-r--r-- | src/common/thread_worker.cpp | 58 | ||||
-rw-r--r-- | src/common/thread_worker.h | 30 |
4 files changed, 94 insertions, 0 deletions
diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt index 943ff996e..5c8003eb1 100644 --- a/src/common/CMakeLists.txt +++ b/src/common/CMakeLists.txt @@ -162,6 +162,8 @@ add_library(common STATIC thread.cpp thread.h thread_queue_list.h + thread_worker.cpp + thread_worker.h threadsafe_queue.h time_zone.cpp time_zone.h diff --git a/src/common/concepts.h b/src/common/concepts.h index 5bef3ad67..aa08065a7 100644 --- a/src/common/concepts.h +++ b/src/common/concepts.h @@ -31,4 +31,8 @@ concept DerivedFrom = requires { std::is_convertible_v<const volatile Derived*, const volatile Base*>; }; +// TODO: Replace with std::convertible_to when libc++ implements it. +template <typename From, typename To> +concept ConvertibleTo = std::is_convertible_v<From, To>; + } // namespace Common diff --git a/src/common/thread_worker.cpp b/src/common/thread_worker.cpp new file mode 100644 index 000000000..8f9bf447a --- /dev/null +++ b/src/common/thread_worker.cpp @@ -0,0 +1,58 @@ +// Copyright 2020 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "common/thread.h" +#include "common/thread_worker.h" + +namespace Common { + +ThreadWorker::ThreadWorker(std::size_t num_workers, const std::string& name) { + for (std::size_t i = 0; i < num_workers; ++i) + threads.emplace_back([this, thread_name{std::string{name}}] { + Common::SetCurrentThreadName(thread_name.c_str()); + + // Wait for first request + { + std::unique_lock lock{queue_mutex}; + condition.wait(lock, [this] { return stop || !requests.empty(); }); + } + + while (true) { + std::function<void()> task; + + { + std::unique_lock lock{queue_mutex}; + condition.wait(lock, [this] { return stop || !requests.empty(); }); + if (stop || requests.empty()) { + return; + } + task = std::move(requests.front()); + requests.pop(); + } + + task(); + } + }); +} + +ThreadWorker::~ThreadWorker() { + { + std::unique_lock lock{queue_mutex}; + stop = true; + } + condition.notify_all(); + for (std::thread& thread : threads) { + thread.join(); + } +} + +void ThreadWorker::QueueWork(std::function<void()>&& work) { + { + std::unique_lock lock{queue_mutex}; + requests.emplace(work); + } + condition.notify_one(); +} + +} // namespace Common diff --git a/src/common/thread_worker.h b/src/common/thread_worker.h new file mode 100644 index 000000000..f1859971f --- /dev/null +++ b/src/common/thread_worker.h @@ -0,0 +1,30 @@ +// Copyright 2020 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <atomic> +#include <functional> +#include <mutex> +#include <string> +#include <vector> +#include <queue> + +namespace Common { + +class ThreadWorker final { +public: + explicit ThreadWorker(std::size_t num_workers, const std::string& name); + ~ThreadWorker(); + void QueueWork(std::function<void()>&& work); + +private: + std::vector<std::thread> threads; + std::queue<std::function<void()>> requests; + std::mutex queue_mutex; + std::condition_variable condition; + std::atomic_bool stop{}; +}; + +} // namespace Common |