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/*
* cache.h - (c) 2003 Frerich Raabe <raabe@kde.org>
*
* 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 THE AUTHOR ``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 THE AUTHOR 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.
*/
#ifndef CACHE_H
#define CACHE_H
#include <tqcstring.h>
#include <tqdatetime.h>
#include <tqdict.h>
#include <xmlrpciface.h>
class CacheEntry
{
friend class Cache;
friend TQDataStream &operator>>( TQDataStream &s, CacheEntry &e );
public:
const TQDateTime &timeStamp() const { return m_timeStamp; }
const KXMLRPC::Query::Result result() const { return m_result; }
bool isValid() const;
private:
TQDateTime m_timeStamp;
KXMLRPC::Query::Result m_result;
};
class Cache : public TQDict<CacheEntry>
{
public:
static Cache &self();
static TQString getCacheKey( const TQString &server,
const TQString &method,
const TQValueList<TQVariant> &args );
void load();
void save();
void touch( const TQString &key );
void insert( const TQString &key, const KXMLRPC::Query::Result &result );
private:
Cache();
Cache( const Cache &rhs ); // disabled
Cache &operator=( const Cache &rhs ); // disabled
~Cache();
TQString cacheFileName() const;
static Cache *m_instance;
};
inline TQDataStream &operator<<( TQDataStream &s, const CacheEntry &e )
{
s << e.timeStamp();
s << e.result();
return s;
}
inline TQDataStream &operator>>( TQDataStream &s, CacheEntry &e )
{
s >> e.m_timeStamp;
s >> e.m_result;
return s;
}
#endif // CACHE_H
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