/* * Copyright (C) 2015 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 "WebDatabaseProvider.h" #include "WebIDBFactoryBackend.h" #include <wtf/HashMap.h> #include <wtf/NeverDestroyed.h> using namespace WebCore; namespace WebKit { static HashMap<uint64_t, WebDatabaseProvider*>& databaseProviders() { static NeverDestroyed<HashMap<uint64_t, WebDatabaseProvider*>> databaseProviders; return databaseProviders; } Ref<WebDatabaseProvider> WebDatabaseProvider::getOrCreate(uint64_t identifier) { auto& slot = databaseProviders().add(identifier, nullptr).iterator->value; if (slot) return *slot; Ref<WebDatabaseProvider> databaseProvider = adoptRef(*new WebDatabaseProvider(identifier)); slot = databaseProvider.ptr(); return databaseProvider; } WebDatabaseProvider::WebDatabaseProvider(uint64_t identifier) : m_identifier(identifier) { } WebDatabaseProvider::~WebDatabaseProvider() { ASSERT(databaseProviders().contains(m_identifier)); databaseProviders().remove(m_identifier); } #if ENABLE(INDEXED_DATABASE) RefPtr<WebCore::IDBFactoryBackendInterface> WebDatabaseProvider::createIDBFactoryBackend() { #if ENABLE(DATABASE_PROCESS) return WebIDBFactoryBackend::create(); #else return nullptr; #endif } #endif }