| /* |
| * Copyright (C) 2010-2017 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. |
| */ |
| |
| #include "config.h" |
| #include "VisitedLinkStore.h" |
| |
| #include "VisitedLinkStoreMessages.h" |
| #include "VisitedLinkTableControllerMessages.h" |
| #include "WebPageProxy.h" |
| #include "WebProcessMessages.h" |
| #include "WebProcessPool.h" |
| #include "WebProcessProxy.h" |
| |
| namespace WebKit { |
| using namespace WebCore; |
| |
| Ref<VisitedLinkStore> VisitedLinkStore::create() |
| { |
| return adoptRef(*new VisitedLinkStore); |
| } |
| |
| VisitedLinkStore::~VisitedLinkStore() |
| { |
| RELEASE_ASSERT(m_processes.isEmpty()); |
| } |
| |
| VisitedLinkStore::VisitedLinkStore() |
| : m_linkHashStore(*this) |
| { |
| } |
| |
| void VisitedLinkStore::addProcess(WebProcessProxy& process) |
| { |
| ASSERT(process.state() == WebProcessProxy::State::Running); |
| ASSERT(!m_processes.contains(&process)); |
| |
| if (!m_processes.add(&process).isNewEntry) |
| return; |
| |
| process.addMessageReceiver(Messages::VisitedLinkStore::messageReceiverName(), identifier(), *this); |
| |
| if (m_linkHashStore.isEmpty()) |
| return; |
| |
| sendStoreHandleToProcess(process); |
| } |
| |
| void VisitedLinkStore::removeProcess(WebProcessProxy& process) |
| { |
| if (!m_processes.remove(&process)) |
| return; |
| |
| process.removeMessageReceiver(Messages::VisitedLinkStore::messageReceiverName(), identifier()); |
| } |
| |
| void VisitedLinkStore::addVisitedLinkHash(SharedStringHash linkHash) |
| { |
| m_linkHashStore.scheduleAddition(linkHash); |
| } |
| |
| bool VisitedLinkStore::containsVisitedLinkHash(WebCore::SharedStringHash linkHash) |
| { |
| return m_linkHashStore.contains(linkHash); |
| } |
| |
| void VisitedLinkStore::removeVisitedLinkHash(WebCore::SharedStringHash linkHash) |
| { |
| m_linkHashStore.scheduleRemoval(linkHash); |
| } |
| |
| void VisitedLinkStore::removeAll() |
| { |
| m_linkHashStore.clear(); |
| |
| for (WebProcessProxy* process : m_processes) { |
| ASSERT(process->processPool().processes().contains(process)); |
| process->send(Messages::VisitedLinkTableController::RemoveAllVisitedLinks(), identifier()); |
| } |
| } |
| |
| void VisitedLinkStore::addVisitedLinkHashFromPage(WebPageProxyIdentifier pageProxyID, SharedStringHash linkHash) |
| { |
| if (auto* webPageProxy = WebProcessProxy::webPage(pageProxyID)) { |
| if (!webPageProxy->addsVisitedLinks()) |
| return; |
| } |
| |
| addVisitedLinkHash(linkHash); |
| } |
| |
| void VisitedLinkStore::sendStoreHandleToProcess(WebProcessProxy& process) |
| { |
| ASSERT(process.processPool().processes().contains(&process)); |
| |
| SharedMemory::Handle handle; |
| if (!m_linkHashStore.createSharedMemoryHandle(handle)) |
| return; |
| |
| process.send(Messages::VisitedLinkTableController::SetVisitedLinkTable(handle), identifier()); |
| } |
| |
| void VisitedLinkStore::didInvalidateSharedMemory() |
| { |
| for (WebProcessProxy* process : m_processes) |
| sendStoreHandleToProcess(*process); |
| } |
| |
| void VisitedLinkStore::didUpdateSharedStringHashes(const Vector<WebCore::SharedStringHash>& addedHashes, const Vector<WebCore::SharedStringHash>& removedHashes) |
| { |
| ASSERT(!addedHashes.isEmpty() || !removedHashes.isEmpty()); |
| |
| for (auto* process : m_processes) { |
| ASSERT(process->processPool().processes().contains(process)); |
| |
| if (addedHashes.size() > 20 || !removedHashes.isEmpty()) |
| process->send(Messages::VisitedLinkTableController::AllVisitedLinkStateChanged(), identifier()); |
| else |
| process->send(Messages::VisitedLinkTableController::VisitedLinkStateChanged(addedHashes), identifier()); |
| } |
| } |
| |
| } // namespace WebKit |