15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) * Copyright (C) 2013 Google Inc. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions are 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions of source code must retain the above copyright 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions in binary form must reproduce the above 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * copyright notice, this list of conditions and the following disclaimer 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * in the documentation and/or other materials provided with the 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * distribution. 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Neither the name of Google Inc. nor the names of its 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * contributors may be used to endorse or promote products derived from 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * this software without specific prior written permission. 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 315267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles)#ifndef WebImageCache_h 325267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles)#define WebImageCache_h 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 345267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles)#include "../platform/WebCommon.h" 355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3651b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles)namespace blink { 375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 385267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles)// An interface to query and configure WebKit's image cache. 395267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles)// 405267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles)// Methods of this interface can be called on any thread. 415267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles)// 4251b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles)// Methods of this interface can be only be used after blink::initialize() 4351b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles)// and before blink::shutdown() is called. 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 455267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles)class WebImageCache { 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)public: 475267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) // Sets the capacities of the image cache, evicting objects as necessary. 4806f816c7c76bc45a15e452ade8a34e8af077693eTorne (Richard Coles) BLINK_EXPORT static void setCacheLimitInBytes(size_t); 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 505267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) // Clears the cache (as much as possible; some resources may not be 515267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) // cleared if they are actively referenced). 5206f816c7c76bc45a15e452ade8a34e8af077693eTorne (Richard Coles) BLINK_EXPORT static void clear(); 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 545267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) // Returns the number of bytes used by the cache. 5506f816c7c76bc45a15e452ade8a34e8af077693eTorne (Richard Coles) BLINK_EXPORT static size_t memoryUsageInBytes(); 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 575267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) // Returns the number of cached entries. 5806f816c7c76bc45a15e452ade8a34e8af077693eTorne (Richard Coles) BLINK_EXPORT static unsigned cacheEntries(); 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 605267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles)private: 615267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) WebImageCache(); // Not intended to be instanced. 625267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles)}; 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 6451b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles)} // namespace blink 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 665267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles)#endif 67