104 lines
3.4 KiB
C++
104 lines
3.4 KiB
C++
/*
|
|
* Copyright (C) 2019 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. AND ITS CONTRIBUTORS ``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 ITS 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.
|
|
*/
|
|
|
|
|
|
#pragma once
|
|
|
|
#include <WebCore/RegistrableDomain.h>
|
|
#include <pal/SessionID.h>
|
|
#include <wtf/HashMap.h>
|
|
#include <wtf/RunLoop.h>
|
|
#include <wtf/text/WTFString.h>
|
|
|
|
namespace WebKit {
|
|
|
|
class WebProcessPool;
|
|
class WebProcessProxy;
|
|
class WebsiteDataStore;
|
|
|
|
class WebProcessCache {
|
|
WTF_MAKE_FAST_ALLOCATED;
|
|
public:
|
|
explicit WebProcessCache(WebProcessPool&);
|
|
|
|
bool addProcessIfPossible(Ref<WebProcessProxy>&&);
|
|
RefPtr<WebProcessProxy> takeProcess(const WebCore::RegistrableDomain&, WebsiteDataStore&);
|
|
|
|
void updateCapacity(WebProcessPool&);
|
|
unsigned capacity() const { return m_capacity; }
|
|
|
|
unsigned size() const { return m_processesPerRegistrableDomain.size(); }
|
|
|
|
void clear();
|
|
void setApplicationIsActive(bool);
|
|
|
|
void clearAllProcessesForSession(PAL::SessionID);
|
|
|
|
enum class ShouldShutDownProcess { No, Yes };
|
|
void removeProcess(WebProcessProxy&, ShouldShutDownProcess);
|
|
|
|
private:
|
|
static Seconds cachedProcessLifetime;
|
|
static Seconds clearingDelayAfterApplicationResignsActive;
|
|
|
|
class CachedProcess {
|
|
WTF_MAKE_FAST_ALLOCATED;
|
|
public:
|
|
CachedProcess(Ref<WebProcessProxy>&&);
|
|
~CachedProcess();
|
|
|
|
Ref<WebProcessProxy> takeProcess();
|
|
WebProcessProxy& process() { ASSERT(m_process); return *m_process; }
|
|
|
|
#if PLATFORM(MAC)
|
|
bool isSuspended() const { return !m_suspensionTimer.isActive(); }
|
|
#endif
|
|
|
|
private:
|
|
void evictionTimerFired();
|
|
#if PLATFORM(MAC)
|
|
void suspensionTimerFired();
|
|
#endif
|
|
|
|
RefPtr<WebProcessProxy> m_process;
|
|
RunLoop::Timer<CachedProcess> m_evictionTimer;
|
|
#if PLATFORM(MAC)
|
|
RunLoop::Timer<CachedProcess> m_suspensionTimer;
|
|
#endif
|
|
};
|
|
|
|
bool canCacheProcess(WebProcessProxy&) const;
|
|
void platformInitialize();
|
|
bool addProcess(std::unique_ptr<CachedProcess>&&);
|
|
|
|
unsigned m_capacity { 0 };
|
|
|
|
HashMap<uint64_t, std::unique_ptr<CachedProcess>> m_pendingAddRequests;
|
|
HashMap<WebCore::RegistrableDomain, std::unique_ptr<CachedProcess>> m_processesPerRegistrableDomain;
|
|
RunLoop::Timer<WebProcessCache> m_evictionTimer;
|
|
};
|
|
|
|
} // namespace WebKit
|