ladybird/Userland/Libraries/LibWeb/HTML/EventLoop/TaskQueue.cpp
Andreas Kling 478b36c37b LibWeb: Only auto-reschedule HTML::EventLoop when there are runnables
HTML::EventLoop tries to reschedule itself when there are more tasks in
any of its queues, but let's not do it if none of them are runnable.
2021-10-03 18:25:15 +02:00

45 lines
820 B
C++

/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/HTML/EventLoop/EventLoop.h>
#include <LibWeb/HTML/EventLoop/TaskQueue.h>
namespace Web::HTML {
TaskQueue::TaskQueue(HTML::EventLoop& event_loop)
: m_event_loop(event_loop)
{
}
TaskQueue::~TaskQueue()
{
}
void TaskQueue::add(NonnullOwnPtr<Task> task)
{
m_tasks.append(move(task));
m_event_loop.schedule();
}
OwnPtr<Task> TaskQueue::take_first_runnable()
{
for (size_t i = 0; i < m_tasks.size(); ++i) {
if (m_tasks[i]->is_runnable())
return m_tasks.take(i);
}
return nullptr;
}
bool TaskQueue::has_runnable_tasks() const
{
for (auto& task : m_tasks) {
if (task->is_runnable())
return true;
}
return false;
}
}