| Index: webkit/pending/CachedResource.h
|
| ===================================================================
|
| --- webkit/pending/CachedResource.h (revision 2884)
|
| +++ webkit/pending/CachedResource.h (working copy)
|
| @@ -1,211 +0,0 @@
|
| -/*
|
| - Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
|
| - Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
|
| - Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
|
| - Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
|
| -
|
| - This library is free software; you can redistribute it and/or
|
| - modify it under the terms of the GNU Library General Public
|
| - License as published by the Free Software Foundation; either
|
| - version 2 of the License, or (at your option) any later version.
|
| -
|
| - This library is distributed in the hope that it will be useful,
|
| - but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
| - Library General Public License for more details.
|
| -
|
| - You should have received a copy of the GNU Library General Public License
|
| - along with this library; see the file COPYING.LIB. If not, write to
|
| - the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
| - Boston, MA 02110-1301, USA.
|
| -*/
|
| -
|
| -#ifndef CachedResource_h
|
| -#define CachedResource_h
|
| -
|
| -#include "PlatformString.h"
|
| -#include "ResourceResponse.h"
|
| -#include "SharedBuffer.h"
|
| -#include <wtf/HashCountedSet.h>
|
| -#include <wtf/Vector.h>
|
| -#include <time.h>
|
| -
|
| -namespace WebCore {
|
| -
|
| -class Cache;
|
| -class CachedResourceClient;
|
| -class CacheHandleBase;
|
| -class DocLoader;
|
| -class Request;
|
| -
|
| -// A resource that is held in the cache. Classes who want to use this object should derive
|
| -// from CachedResourceClient, to get the function calls in case the requested data has arrived.
|
| -// This class also does the actual communication with the loader to obtain the resource from the network.
|
| -class CachedResource {
|
| - friend class Cache;
|
| -
|
| -public:
|
| - enum Type {
|
| - ImageResource,
|
| - CSSStyleSheet,
|
| - Script,
|
| - FontResource
|
| -#if ENABLE(XSLT)
|
| - , XSLStyleSheet
|
| -#endif
|
| -#if ENABLE(XBL)
|
| - , XBL
|
| -#endif
|
| - };
|
| -
|
| - enum Status {
|
| - NotCached, // this URL is not cached
|
| - Unknown, // let cache decide what to do with it
|
| - New, // inserting new item
|
| - Pending, // only partially loaded
|
| - Cached // regular case
|
| - };
|
| -
|
| - CachedResource(const String& url, Type);
|
| - virtual ~CachedResource();
|
| -
|
| - virtual void load(DocLoader* docLoader) { load(docLoader, false, false, true); }
|
| - void load(DocLoader*, bool incremental, bool skipCanLoadCheck, bool sendResourceLoadCallbacks);
|
| -
|
| - virtual void setEncoding(const String&) { }
|
| - virtual String encoding() const { return String(); }
|
| - virtual void data(PassRefPtr<SharedBuffer> data, bool allDataReceived) = 0;
|
| - virtual void error() = 0;
|
| -
|
| - const String &url() const { return m_url; }
|
| - Type type() const { return m_type; }
|
| -
|
| - virtual void addClient(CachedResourceClient*);
|
| - void removeClient(CachedResourceClient*);
|
| - bool hasClients() const { return !m_clients.isEmpty(); }
|
| -
|
| - enum PreloadResult {
|
| - PreloadNotReferenced,
|
| - PreloadReferenced,
|
| - PreloadReferencedWhileLoading,
|
| - PreloadReferencedWhileComplete
|
| - };
|
| - PreloadResult preloadResult() const { return m_preloadResult; }
|
| - void setRequestedFromNetworkingLayer() { m_requestedFromNetworkingLayer = true; }
|
| -
|
| - virtual void allClientsRemoved() { };
|
| -
|
| - unsigned count() const { return m_clients.size(); }
|
| -
|
| - Status status() const { return m_status; }
|
| -
|
| - unsigned size() const { return encodedSize() + decodedSize(); }
|
| - unsigned encodedSize() const { return m_encodedSize; }
|
| - unsigned decodedSize() const { return m_decodedSize; }
|
| -
|
| - bool isLoaded() const { return !m_loading; }
|
| - void setLoading(bool b) { m_loading = b; }
|
| -
|
| - virtual bool isImage() const { return false; }
|
| -
|
| - unsigned accessCount() const { return m_accessCount; }
|
| - void increaseAccessCount() { m_accessCount++; }
|
| -
|
| - // Computes the status of an object after loading.
|
| - // Updates the expire date on the cache entry file
|
| - void finish();
|
| -
|
| - // Called by the cache if the object has been removed from the cache
|
| - // while still being referenced. This means the object should delete itself
|
| - // if the number of clients observing it ever drops to 0.
|
| - void setInCache(bool b) { m_inCache = b; }
|
| - bool inCache() const { return m_inCache; }
|
| -
|
| - void setInLiveDecodedResourcesList(bool b) { m_inLiveDecodedResourcesList = b; }
|
| - bool inLiveDecodedResourcesList() { return m_inLiveDecodedResourcesList; }
|
| -
|
| - void setRequest(Request*);
|
| -
|
| - void setResponse(const ResourceResponse& response) { m_response = response; }
|
| - const ResourceResponse& response() const { return m_response; }
|
| -
|
| - bool canDelete() const { return !hasClients() && !m_request && !m_preloadCount; }
|
| -
|
| - bool isExpired() const;
|
| -
|
| - virtual bool schedule() const { return false; }
|
| -
|
| - // List of acceptable MIME types seperated by ",".
|
| - // A MIME type may contain a wildcard, e.g. "text/*".
|
| - String accept() const { return m_accept; }
|
| - void setAccept(const String& accept) { m_accept = accept; }
|
| -
|
| - bool errorOccurred() const { return m_errorOccurred; }
|
| - bool sendResourceLoadCallbacks() const { return m_sendResourceLoadCallbacks; }
|
| -
|
| - virtual void destroyDecodedData() {};
|
| -
|
| - void setDocLoader(DocLoader* docLoader) { m_docLoader = docLoader; }
|
| -
|
| -#if PLATFORM(MAC)
|
| - SharedBuffer* data() const { return m_data.get(); }
|
| -#endif
|
| -
|
| - bool isPreloaded() const { return m_preloadCount; }
|
| - void increasePreloadCount() { ++m_preloadCount; }
|
| - void decreasePreloadCount() { ASSERT(m_preloadCount); --m_preloadCount; }
|
| -
|
| -protected:
|
| - void setEncodedSize(unsigned);
|
| - void setDecodedSize(unsigned);
|
| - void didAccessDecodedData(double timeStamp);
|
| -
|
| - HashCountedSet<CachedResourceClient*> m_clients;
|
| -
|
| - String m_url;
|
| - String m_accept;
|
| - Request* m_request;
|
| -
|
| - ResourceResponse m_response;
|
| - RefPtr<SharedBuffer> m_data;
|
| -
|
| - Type m_type;
|
| - Status m_status;
|
| -
|
| - bool m_errorOccurred;
|
| -
|
| -private:
|
| - unsigned m_encodedSize;
|
| - unsigned m_decodedSize;
|
| - unsigned m_accessCount;
|
| - unsigned m_inLiveDecodedResourcesList;
|
| - double m_lastDecodedAccessTime; // Used as a "thrash guard" in the cache
|
| -
|
| - bool m_sendResourceLoadCallbacks;
|
| -
|
| - unsigned m_preloadCount;
|
| - PreloadResult m_preloadResult;
|
| - bool m_requestedFromNetworkingLayer;
|
| -
|
| -protected:
|
| - bool m_inCache;
|
| - bool m_loading;
|
| - bool m_expireDateChanged;
|
| -#ifndef NDEBUG
|
| - bool m_deleted;
|
| - unsigned m_lruIndex;
|
| -#endif
|
| -
|
| -private:
|
| - CachedResource* m_nextInAllResourcesList;
|
| - CachedResource* m_prevInAllResourcesList;
|
| -
|
| - CachedResource* m_nextInLiveResourcesList;
|
| - CachedResource* m_prevInLiveResourcesList;
|
| -
|
| - DocLoader* m_docLoader; // only non-0 for resources that are not in the cache
|
| -};
|
| -
|
| -}
|
| -
|
| -#endif
|
|
|
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