#ifndef CachedResource_h
#define CachedResource_h
#include "DeprecatedString.h"
#include "CachePolicy.h"
#include "PlatformString.h"
#include <wtf/HashSet.h>
#include <wtf/Vector.h>
#include <time.h>
#if __OBJC__
@class NSData;
@class NSURLResponse;
#else
class NSData;
class NSURLResponse;
#endif
namespace WebCore
{
class Cache;
class CachedResourceClient;
class Request;
class CachedResource {
public:
enum Type {
ImageResource,
CSSStyleSheet,
Script
#ifdef KHTML_XSLT
, XSLStyleSheet
#endif
#ifndef KHTML_NO_XBL
, XBL
#endif
};
enum Status {
NotCached, Unknown, New, Pending, Cached };
CachedResource(const String& URL, Type type, CachePolicy cachePolicy);
virtual ~CachedResource();
virtual void setCharset(const DeprecatedString&) { }
virtual Vector<char>& bufferData(const char* bytes, int addedSize, Request*);
virtual void data(Vector<char>&, bool allDataReceived) = 0;
virtual void error() = 0;
const String &url() const { return m_url; }
Type type() const { return m_type; }
virtual void ref(CachedResourceClient*);
void deref(CachedResourceClient*);
bool referenced() const { return !m_clients.isEmpty(); }
virtual void allReferencesRemoved() {};
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; }
virtual unsigned decodedSize() const { return 0; }
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++; }
unsigned liveAccessCount() const { return m_liveAccessCount; }
void resetLiveAccessCount() { m_liveAccessCount = 0; }
void increaseLiveAccessCount() { m_liveAccessCount++; }
void liveResourceAccessed();
void finish();
void setInCache(bool b) { m_inCache = b; }
bool inCache() const { return m_inCache; }
CachePolicy cachePolicy() const { return m_cachePolicy; }
void setRequest(Request*);
#if __APPLE__
NSURLResponse* response() const { return m_response; }
void setResponse(NSURLResponse*);
NSData* allData() const { return m_allData; }
void setAllData(NSData*);
#endif
bool canDelete() const { return !referenced() && !m_request; }
void setExpireDate(time_t expireDate, bool changeHttpCache);
bool isExpired() const;
virtual bool schedule() const { return false; }
String accept() const { return m_accept; }
void setAccept(const String& accept) { m_accept = accept; }
virtual void destroyDecodedData() {};
protected:
void setEncodedSize(unsigned);
HashSet<CachedResourceClient*> m_clients;
String m_url;
String m_accept;
Request *m_request;
#if __APPLE__
NSURLResponse *m_response;
NSData *m_allData;
#endif
Type m_type;
Status m_status;
private:
unsigned m_encodedSize;
unsigned m_accessCount;
unsigned m_liveAccessCount;
protected:
time_t m_expireDate;
CachePolicy m_cachePolicy;
bool m_inCache;
bool m_loading;
bool m_expireDateChanged;
#ifndef NDEBUG
bool m_deleted;
unsigned m_lruIndex;
unsigned m_liveLRUIndex;
#endif
private:
CachedResource* m_nextInAllResourcesList;
CachedResource* m_prevInAllResourcesList;
CachedResource* m_nextInLiveResourcesList;
CachedResource* m_prevInLiveResourcesList;
friend class Cache;
};
}
#endif