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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/EventQueue.h"
#include "GeckoProfiler.h"
#include "InputTaskManager.h"
#include "VsyncTaskManager.h"
#include "nsIRunnable.h"
#include "TaskController.h"
using namespace mozilla;
using namespace mozilla::detail;
template <size_t ItemsPerPage>
void EventQueueInternal<ItemsPerPage>::PutEvent(
already_AddRefed<nsIRunnable>&& aEvent, EventQueuePriority aPriority,
const MutexAutoLock& aProofOfLock, mozilla::TimeDuration* aDelay) {
nsCOMPtr<nsIRunnable> event(aEvent);
static_assert(static_cast<uint32_t>(nsIRunnablePriority::PRIORITY_IDLE) ==
static_cast<uint32_t>(EventQueuePriority::Idle));
static_assert(static_cast<uint32_t>(nsIRunnablePriority::PRIORITY_NORMAL) ==
static_cast<uint32_t>(EventQueuePriority::Normal));
static_assert(
static_cast<uint32_t>(nsIRunnablePriority::PRIORITY_MEDIUMHIGH) ==
static_cast<uint32_t>(EventQueuePriority::MediumHigh));
static_assert(
static_cast<uint32_t>(nsIRunnablePriority::PRIORITY_INPUT_HIGH) ==
static_cast<uint32_t>(EventQueuePriority::InputHigh));
static_assert(static_cast<uint32_t>(nsIRunnablePriority::PRIORITY_VSYNC) ==
static_cast<uint32_t>(EventQueuePriority::Vsync));
static_assert(
static_cast<uint32_t>(nsIRunnablePriority::PRIORITY_RENDER_BLOCKING) ==
static_cast<uint32_t>(EventQueuePriority::RenderBlocking));
static_assert(static_cast<uint32_t>(nsIRunnablePriority::PRIORITY_CONTROL) ==
static_cast<uint32_t>(EventQueuePriority::Control));
if (mForwardToTC) {
TaskController* tc = TaskController::Get();
TaskManager* manager = nullptr;
if (aPriority == EventQueuePriority::InputHigh) {
manager = InputTaskManager::Get();
} else if (aPriority == EventQueuePriority::DeferredTimers ||
aPriority == EventQueuePriority::Idle) {
manager = TaskController::Get()->GetIdleTaskManager();
} else if (aPriority == EventQueuePriority::Vsync) {
manager = VsyncTaskManager::Get();
}
tc->DispatchRunnable(event.forget(), static_cast<uint32_t>(aPriority),
manager);
return;
}
if (profiler_thread_is_being_profiled(ThreadProfilingFeatures::Sampling)) {
// check to see if the profiler has been enabled since the last PutEvent
while (mDispatchTimes.Count() < mQueue.Count()) {
mDispatchTimes.Push(TimeStamp());
}
mDispatchTimes.Push(aDelay ? TimeStamp::Now() - *aDelay : TimeStamp::Now());
}
mQueue.Push(std::move(event));
}
template <size_t ItemsPerPage>
already_AddRefed<nsIRunnable> EventQueueInternal<ItemsPerPage>::GetEvent(
const MutexAutoLock& aProofOfLock, mozilla::TimeDuration* aLastEventDelay) {
if (mQueue.IsEmpty()) {
if (aLastEventDelay) {
*aLastEventDelay = TimeDuration();
}
return nullptr;
}
// We always want to clear the dispatch times, even if the profiler is turned
// off, because we want to empty the (previously-collected) dispatch times, if
// any, from when the profiler was turned on. We only want to do something
// interesting with the dispatch times if the profiler is turned on, though.
if (!mDispatchTimes.IsEmpty()) {
TimeStamp dispatch_time = mDispatchTimes.Pop();
if (profiler_is_active()) {
if (!dispatch_time.IsNull()) {
if (aLastEventDelay) {
*aLastEventDelay = TimeStamp::Now() - dispatch_time;
}
}
}
} else if (profiler_is_active()) {
if (aLastEventDelay) {
// if we just turned on the profiler, we don't have dispatch
// times for events already in the queue.
*aLastEventDelay = TimeDuration();
}
}
nsCOMPtr<nsIRunnable> result = mQueue.Pop();
return result.forget();
}
template <size_t ItemsPerPage>
bool EventQueueInternal<ItemsPerPage>::IsEmpty(
const MutexAutoLock& aProofOfLock) {
return mQueue.IsEmpty();
}
template <size_t ItemsPerPage>
bool EventQueueInternal<ItemsPerPage>::HasReadyEvent(
const MutexAutoLock& aProofOfLock) {
return !IsEmpty(aProofOfLock);
}
template <size_t ItemsPerPage>
size_t EventQueueInternal<ItemsPerPage>::Count(
const MutexAutoLock& aProofOfLock) const {
return mQueue.Count();
}
namespace mozilla {
template class EventQueueSized<16>; // Used by ThreadEventQueue
template class EventQueueSized<64>; // Used by ThrottledEventQueue
namespace detail {
template class EventQueueInternal<16>; // Used by ThreadEventQueue
template class EventQueueInternal<64>; // Used by ThrottledEventQueue
} // namespace detail
} // namespace mozilla
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