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ProcessActivityGroup.cpp
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123 lines (103 loc) · 4.36 KB
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/*
* Copyright (C) 2026 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "ProcessActivityGroup.h"
#include "WebProcessProxy.h"
namespace WebKit {
WTF_MAKE_TZONE_ALLOCATED_IMPL(ProcessActivityGroup);
Ref<ProcessActivityGroup> ProcessActivityGroup::create(ProcessActivityGroupContext& context, ASCIILiteral name, ProcessThrottlerActivityType type, std::optional<Seconds> timeout)
{
return adoptRef(*new ProcessActivityGroup(context, name, type, timeout));
}
ProcessActivityGroup::ProcessActivityGroup(ProcessActivityGroupContext& context, ASCIILiteral name, ProcessThrottlerActivityType type, std::optional<Seconds> timeout)
: m_context(context)
, m_name(name)
, m_type(type)
, m_timer(RunLoop::Timer(RunLoop::mainSingleton(), "ProcessActivityGroup timer"_s, this, &ProcessActivityGroup::activityTimedOut))
, m_timeout(timeout)
{
auto processes = context.activityTargets();
for (Ref process : processes)
m_activities.add(process->coreProcessIdentifier(), createActivity(process));
context.addProcessActivityGroup(*this);
if (m_timeout)
m_timer.startOneShot(*m_timeout);
}
ProcessActivityGroup::~ProcessActivityGroup()
{
if (CheckedPtr context = m_context.get())
context->removeProcessActivityGroup(*this);
}
Ref<ProcessThrottler::Activity> ProcessActivityGroup::createActivity(WebProcessProxy& process)
{
if (m_type == ProcessThrottlerActivityType::Foreground)
return protect(process.throttler())->foregroundActivity(m_name);
return protect(process.throttler())->backgroundActivity(m_name);
}
void ProcessActivityGroup::addActivityForTarget(WebProcessProxy& target)
{
if (m_timeout.has_value() && !m_timer.isActive()) {
// The timer has fired, so we should not add new activities.
return;
}
m_activities.set(target.coreProcessIdentifier(), createActivity(target));
}
void ProcessActivityGroup::removeActivityForTarget(WebProcessProxy& target)
{
m_activities.remove(target.coreProcessIdentifier());
}
void ProcessActivityGroup::activityTimedOut()
{
m_activities.clear();
}
Ref<ProcessActivityGroup> ProcessActivityGroupContext::foregroundProcessActivityGroup(ASCIILiteral name, std::optional<Seconds> timeout)
{
return ProcessActivityGroup::create(*this, name, ProcessThrottlerActivityType::Foreground, timeout);
}
Vector<Ref<WebProcessProxy>> ProcessActivityGroupContext::activityTargets()
{
return { };
}
void ProcessActivityGroupContext::addProcessActivityGroup(ProcessActivityGroup& activityGroup)
{
m_processActivityGroups.add(activityGroup);
}
void ProcessActivityGroupContext::removeProcessActivityGroup(ProcessActivityGroup& activityGroup)
{
m_processActivityGroups.remove(activityGroup);
}
void ProcessActivityGroupContext::didAddActivityTarget(WebProcessProxy& target)
{
m_processActivityGroups.forEach([&](auto& activityGroup) {
activityGroup.addActivityForTarget(target);
});
}
void ProcessActivityGroupContext::didRemoveActivityTarget(WebProcessProxy& target)
{
m_processActivityGroups.forEach([&](auto& activityGroup) {
activityGroup.removeActivityForTarget(target);
});
}
}