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-rw-r--r--src/core/core_timing.cpp151
-rw-r--r--src/core/core_timing.h25
2 files changed, 67 insertions, 109 deletions
diff --git a/src/core/core_timing.cpp b/src/core/core_timing.cpp
index 5425637f5..2dbb99c8b 100644
--- a/src/core/core_timing.cpp
+++ b/src/core/core_timing.cpp
@@ -6,9 +6,7 @@
#include <string>
#include <tuple>
-#include "common/logging/log.h"
#include "common/microprofile.h"
-#include "common/thread.h"
#include "core/core_timing.h"
#include "core/core_timing_util.h"
#include "core/hardware_properties.h"
@@ -44,10 +42,10 @@ CoreTiming::CoreTiming()
CoreTiming::~CoreTiming() = default;
-void CoreTiming::ThreadEntry(CoreTiming& instance, size_t id) {
- const std::string name = "yuzu:HostTiming_" + std::to_string(id);
- MicroProfileOnThreadCreate(name.c_str());
- Common::SetCurrentThreadName(name.c_str());
+void CoreTiming::ThreadEntry(CoreTiming& instance) {
+ constexpr char name[] = "yuzu:HostTiming";
+ MicroProfileOnThreadCreate(name);
+ Common::SetCurrentThreadName(name);
Common::SetCurrentThreadPriority(Common::ThreadPriority::Critical);
instance.on_thread_init();
instance.ThreadLoop();
@@ -63,127 +61,100 @@ void CoreTiming::Initialize(std::function<void()>&& on_thread_init_) {
-> std::optional<std::chrono::nanoseconds> { return std::nullopt; };
ev_lost = CreateEvent("_lost_event", empty_timed_callback);
if (is_multicore) {
- worker_threads.emplace_back(ThreadEntry, std::ref(*this), 0);
+ timer_thread = std::make_unique<std::thread>(ThreadEntry, std::ref(*this));
}
}
void CoreTiming::Shutdown() {
- is_paused = true;
+ paused = true;
shutting_down = true;
- std::atomic_thread_fence(std::memory_order_release);
-
- event_cv.notify_all();
- wait_pause_cv.notify_all();
- for (auto& thread : worker_threads) {
- thread.join();
+ pause_event.Set();
+ event.Set();
+ if (timer_thread) {
+ timer_thread->join();
}
- worker_threads.clear();
pause_callbacks.clear();
ClearPendingEvents();
+ timer_thread.reset();
has_started = false;
}
-void CoreTiming::Pause(bool is_paused_) {
- std::unique_lock main_lock(event_mutex);
- if (is_paused_ == paused_state.load(std::memory_order_relaxed)) {
- return;
- }
- if (is_multicore) {
- is_paused = is_paused_;
- event_cv.notify_all();
- if (!is_paused_) {
- wait_pause_cv.notify_all();
- }
- }
- paused_state.store(is_paused_, std::memory_order_relaxed);
+void CoreTiming::Pause(bool is_paused) {
+ paused = is_paused;
+ pause_event.Set();
- if (!is_paused_) {
+ if (!is_paused) {
pause_end_time = GetGlobalTimeNs().count();
}
for (auto& cb : pause_callbacks) {
- cb(is_paused_);
+ cb(is_paused);
}
}
-void CoreTiming::SyncPause(bool is_paused_) {
- std::unique_lock main_lock(event_mutex);
- if (is_paused_ == paused_state.load(std::memory_order_relaxed)) {
+void CoreTiming::SyncPause(bool is_paused) {
+ if (is_paused == paused && paused_set == paused) {
return;
}
- if (is_multicore) {
- is_paused = is_paused_;
- event_cv.notify_all();
- if (!is_paused_) {
- wait_pause_cv.notify_all();
- }
- }
- paused_state.store(is_paused_, std::memory_order_relaxed);
- if (is_multicore) {
- if (is_paused_) {
- wait_signal_cv.wait(main_lock, [this] { return pause_count == worker_threads.size(); });
- } else {
- wait_signal_cv.wait(main_lock, [this] { return pause_count == 0; });
+ Pause(is_paused);
+ if (timer_thread) {
+ if (!is_paused) {
+ pause_event.Set();
}
+ event.Set();
+ while (paused_set != is_paused)
+ ;
}
- if (!is_paused_) {
+ if (!is_paused) {
pause_end_time = GetGlobalTimeNs().count();
}
for (auto& cb : pause_callbacks) {
- cb(is_paused_);
+ cb(is_paused);
}
}
bool CoreTiming::IsRunning() const {
- return !paused_state.load(std::memory_order_acquire);
+ return !paused_set;
}
bool CoreTiming::HasPendingEvents() const {
- std::unique_lock main_lock(event_mutex);
- return !event_queue.empty() || pending_events.load(std::memory_order_relaxed) != 0;
+ return !(wait_set && event_queue.empty());
}
void CoreTiming::ScheduleEvent(std::chrono::nanoseconds ns_into_future,
const std::shared_ptr<EventType>& event_type,
std::uintptr_t user_data, bool absolute_time) {
+ {
+ std::scoped_lock scope{basic_lock};
+ const auto next_time{absolute_time ? ns_into_future : GetGlobalTimeNs() + ns_into_future};
- std::unique_lock main_lock(event_mutex);
- const auto next_time{absolute_time ? ns_into_future : GetGlobalTimeNs() + ns_into_future};
-
- event_queue.emplace_back(Event{next_time.count(), event_fifo_id++, user_data, event_type, 0});
- pending_events.fetch_add(1, std::memory_order_relaxed);
-
- std::push_heap(event_queue.begin(), event_queue.end(), std::greater<>());
-
- if (is_multicore) {
- event_cv.notify_one();
+ event_queue.emplace_back(
+ Event{next_time.count(), event_fifo_id++, user_data, event_type, 0});
+ std::push_heap(event_queue.begin(), event_queue.end(), std::greater<>());
}
+
+ event.Set();
}
void CoreTiming::ScheduleLoopingEvent(std::chrono::nanoseconds start_time,
std::chrono::nanoseconds resched_time,
const std::shared_ptr<EventType>& event_type,
std::uintptr_t user_data, bool absolute_time) {
- std::unique_lock main_lock(event_mutex);
+ std::scoped_lock scope{basic_lock};
const auto next_time{absolute_time ? start_time : GetGlobalTimeNs() + start_time};
event_queue.emplace_back(
Event{next_time.count(), event_fifo_id++, user_data, event_type, resched_time.count()});
- pending_events.fetch_add(1, std::memory_order_relaxed);
std::push_heap(event_queue.begin(), event_queue.end(), std::greater<>());
-
- if (is_multicore) {
- event_cv.notify_one();
- }
}
void CoreTiming::UnscheduleEvent(const std::shared_ptr<EventType>& event_type,
std::uintptr_t user_data) {
- std::unique_lock main_lock(event_mutex);
+ std::scoped_lock scope{basic_lock};
const auto itr = std::remove_if(event_queue.begin(), event_queue.end(), [&](const Event& e) {
return e.type.lock().get() == event_type.get() && e.user_data == user_data;
});
@@ -192,7 +163,6 @@ void CoreTiming::UnscheduleEvent(const std::shared_ptr<EventType>& event_type,
if (itr != event_queue.end()) {
event_queue.erase(itr, event_queue.end());
std::make_heap(event_queue.begin(), event_queue.end(), std::greater<>());
- pending_events.fetch_sub(1, std::memory_order_relaxed);
}
}
@@ -232,12 +202,11 @@ u64 CoreTiming::GetClockTicks() const {
}
void CoreTiming::ClearPendingEvents() {
- std::unique_lock main_lock(event_mutex);
event_queue.clear();
}
void CoreTiming::RemoveEvent(const std::shared_ptr<EventType>& event_type) {
- std::unique_lock main_lock(event_mutex);
+ std::scoped_lock lock{basic_lock};
const auto itr = std::remove_if(event_queue.begin(), event_queue.end(), [&](const Event& e) {
return e.type.lock().get() == event_type.get();
@@ -251,28 +220,27 @@ void CoreTiming::RemoveEvent(const std::shared_ptr<EventType>& event_type) {
}
void CoreTiming::RegisterPauseCallback(PauseCallback&& callback) {
- std::unique_lock main_lock(event_mutex);
+ std::scoped_lock lock{basic_lock};
pause_callbacks.emplace_back(std::move(callback));
}
std::optional<s64> CoreTiming::Advance() {
+ std::scoped_lock lock{advance_lock, basic_lock};
global_timer = GetGlobalTimeNs().count();
- std::unique_lock main_lock(event_mutex);
while (!event_queue.empty() && event_queue.front().time <= global_timer) {
Event evt = std::move(event_queue.front());
std::pop_heap(event_queue.begin(), event_queue.end(), std::greater<>());
event_queue.pop_back();
if (const auto event_type{evt.type.lock()}) {
- event_mutex.unlock();
+ basic_lock.unlock();
const auto new_schedule_time{event_type->callback(
evt.user_data, evt.time,
std::chrono::nanoseconds{GetGlobalTimeNs().count() - evt.time})};
- event_mutex.lock();
- pending_events.fetch_sub(1, std::memory_order_relaxed);
+ basic_lock.lock();
if (evt.reschedule_time != 0) {
// If this event was scheduled into a pause, its time now is going to be way behind.
@@ -285,9 +253,9 @@ std::optional<s64> CoreTiming::Advance() {
const auto next_schedule_time{new_schedule_time.has_value()
? new_schedule_time.value().count()
: evt.reschedule_time};
+
event_queue.emplace_back(
Event{next_time, event_fifo_id++, evt.user_data, evt.type, next_schedule_time});
- pending_events.fetch_add(1, std::memory_order_relaxed);
std::push_heap(event_queue.begin(), event_queue.end(), std::greater<>());
}
}
@@ -304,34 +272,27 @@ std::optional<s64> CoreTiming::Advance() {
}
void CoreTiming::ThreadLoop() {
- const auto predicate = [this] { return !event_queue.empty() || is_paused; };
has_started = true;
while (!shutting_down) {
- while (!is_paused && !shutting_down) {
+ while (!paused) {
+ paused_set = false;
const auto next_time = Advance();
if (next_time) {
if (*next_time > 0) {
std::chrono::nanoseconds next_time_ns = std::chrono::nanoseconds(*next_time);
- std::unique_lock main_lock(event_mutex);
- event_cv.wait_for(main_lock, next_time_ns, predicate);
+ event.WaitFor(next_time_ns);
}
} else {
- std::unique_lock main_lock(event_mutex);
- event_cv.wait(main_lock, predicate);
+ wait_set = true;
+ event.Wait();
}
+ wait_set = false;
}
- std::unique_lock main_lock(event_mutex);
- pause_count++;
- if (pause_count == worker_threads.size()) {
- clock->Pause(true);
- wait_signal_cv.notify_all();
- }
- wait_pause_cv.wait(main_lock, [this] { return !is_paused || shutting_down; });
- pause_count--;
- if (pause_count == 0) {
- clock->Pause(false);
- wait_signal_cv.notify_all();
- }
+
+ paused_set = true;
+ clock->Pause(true);
+ pause_event.Wait();
+ clock->Pause(false);
}
}
diff --git a/src/core/core_timing.h b/src/core/core_timing.h
index 09b6ed81a..6aa3ae923 100644
--- a/src/core/core_timing.h
+++ b/src/core/core_timing.h
@@ -5,7 +5,6 @@
#include <atomic>
#include <chrono>
-#include <condition_variable>
#include <functional>
#include <memory>
#include <mutex>
@@ -15,6 +14,7 @@
#include <vector>
#include "common/common_types.h"
+#include "common/thread.h"
#include "common/wall_clock.h"
namespace Core::Timing {
@@ -143,7 +143,7 @@ private:
/// Clear all pending events. This should ONLY be done on exit.
void ClearPendingEvents();
- static void ThreadEntry(CoreTiming& instance, size_t id);
+ static void ThreadEntry(CoreTiming& instance);
void ThreadLoop();
std::unique_ptr<Common::WallClock> clock;
@@ -156,24 +156,21 @@ private:
// accomodated by the standard adaptor class.
std::vector<Event> event_queue;
u64 event_fifo_id = 0;
- std::atomic<size_t> pending_events{};
std::shared_ptr<EventType> ev_lost;
+ Common::Event event{};
+ Common::Event pause_event{};
+ std::mutex basic_lock;
+ std::mutex advance_lock;
+ std::unique_ptr<std::thread> timer_thread;
+ std::atomic<bool> paused{};
+ std::atomic<bool> paused_set{};
+ std::atomic<bool> wait_set{};
+ std::atomic<bool> shutting_down{};
std::atomic<bool> has_started{};
std::function<void()> on_thread_init{};
- std::vector<std::thread> worker_threads;
-
- std::condition_variable event_cv;
- std::condition_variable wait_pause_cv;
- std::condition_variable wait_signal_cv;
- mutable std::mutex event_mutex;
-
- std::atomic<bool> paused_state{};
- bool is_paused{};
- bool shutting_down{};
bool is_multicore{};
- size_t pause_count{};
s64 pause_end_time{};
/// Cycle timing
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 23:40:34 +0100