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Merge pull request #6965 from bunnei/cpu_manager_jthread 

core: cpu_manager: Use jthread.
This commit is contained in:
bunnei 2021-09-06 03:49:14 -07:00 committed by GitHub
parent d9ce179ec2 25a97e0139
commit 51ccc29cdd
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 13 additions and 18 deletions
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25
src/core/cpu_manager.cpp
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@ -21,34 +21,25 @@ namespace Core {
CpuManager::CpuManager(System& system_) : system{system_} {} CpuManager::CpuManager(System& system_) : system{system_} {}
CpuManager::~CpuManager() = default; CpuManager::~CpuManager() = default;
void CpuManager::ThreadStart(CpuManager& cpu_manager, std::size_t core) { void CpuManager::ThreadStart(std::stop_token stop_token, CpuManager& cpu_manager,
cpu_manager.RunThread(core); std::size_t core) {
cpu_manager.RunThread(stop_token, core);
} }
void CpuManager::Initialize() { void CpuManager::Initialize() {
running_mode = true; running_mode = true;
if (is_multicore) { if (is_multicore) {
for (std::size_t core = 0; core < Core::Hardware::NUM_CPU_CORES; core++) { for (std::size_t core = 0; core < Core::Hardware::NUM_CPU_CORES; core++) {
core_data[core].host_thread = core_data[core].host_thread = std::jthread(ThreadStart, std::ref(*this), core);
std::make_unique<std::thread>(ThreadStart, std::ref(*this), core);
} }
} else { } else {
core_data[0].host_thread = std::make_unique<std::thread>(ThreadStart, std::ref(*this), 0); core_data[0].host_thread = std::jthread(ThreadStart, std::ref(*this), 0);
} }
} }
void CpuManager::Shutdown() { void CpuManager::Shutdown() {
running_mode = false; running_mode = false;
Pause(false); Pause(false);
if (is_multicore) {
for (auto& data : core_data) {
data.host_thread->join();
data.host_thread.reset();
}
} else {
core_data[0].host_thread->join();
core_data[0].host_thread.reset();
}
} }
std::function<void(void*)> CpuManager::GetGuestThreadStartFunc() { std::function<void(void*)> CpuManager::GetGuestThreadStartFunc() {
@ -317,7 +308,7 @@ void CpuManager::Pause(bool paused) {
} }
} }
void CpuManager::RunThread(std::size_t core) { void CpuManager::RunThread(std::stop_token stop_token, std::size_t core) {
/// Initialization /// Initialization
system.RegisterCoreThread(core); system.RegisterCoreThread(core);
std::string name; std::string name;
@ -361,6 +352,10 @@ void CpuManager::RunThread(std::size_t core) {
return; return;
} }
if (stop_token.stop_requested()) {
break;
}
auto current_thread = system.Kernel().CurrentScheduler()->GetCurrentThread(); auto current_thread = system.Kernel().CurrentScheduler()->GetCurrentThread();
data.is_running = true; data.is_running = true;
Common::Fiber::YieldTo(data.host_context, *current_thread->GetHostContext()); Common::Fiber::YieldTo(data.host_context, *current_thread->GetHostContext());

6
src/core/cpu_manager.h
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@ -78,9 +78,9 @@ private:
void SingleCoreRunSuspendThread(); void SingleCoreRunSuspendThread();
void SingleCorePause(bool paused); void SingleCorePause(bool paused);
static void ThreadStart(CpuManager& cpu_manager, std::size_t core); static void ThreadStart(std::stop_token stop_token, CpuManager& cpu_manager, std::size_t core);
void RunThread(std::size_t core); void RunThread(std::stop_token stop_token, std::size_t core);
struct CoreData { struct CoreData {
std::shared_ptr<Common::Fiber> host_context; std::shared_ptr<Common::Fiber> host_context;
@ -89,7 +89,7 @@ private:
std::atomic<bool> is_running; std::atomic<bool> is_running;
std::atomic<bool> is_paused; std::atomic<bool> is_paused;
std::atomic<bool> initialized; std::atomic<bool> initialized;
std::unique_ptr<std::thread> host_thread; std::jthread host_thread;
}; };
std::atomic<bool> running_mode{}; std::atomic<bool> running_mode{};