| /* |
| * 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; } |
| |
| private: |
| void evictionTimerFired(); |
| |
| RefPtr<WebProcessProxy> m_process; |
| RunLoop::Timer<CachedProcess> m_evictionTimer; |
| }; |
| |
| 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 |