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// **********************************************************************
//
// Copyright (c) 2003-2007 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#ifndef FREEZE_SHARED_DB_H
#define FREEZE_SHARED_DB_H
#include <IceUtil/Config.h>
#include <db_cxx.h>
#include <Freeze/ConnectionI.h>
#include <Freeze/Map.h>
#include <IceUtil/Handle.h>
#include <map>
namespace Freeze
{
class SharedDbEnv;
class SharedDb;
typedef IceUtil::Handle<SharedDb> SharedDbPtr;
class MapIndexI
{
public:
MapIndexI(const ConnectionIPtr&, SharedDb&,
DbTxn*, bool, const MapIndexBasePtr&);
~MapIndexI();
IteratorHelper* untypedFind(const Key&, bool, const MapHelperI&, bool) const;
IteratorHelper* untypedLowerBound(const Key&, bool, const MapHelperI&) const;
IteratorHelper* untypedUpperBound(const Key&, bool, const MapHelperI&) const;
int untypedCount(const Key&, const ConnectionIPtr&) const;
int
secondaryKeyCreate(Db*, const Dbt*, const Dbt*, Dbt*);
const std::string name() const
{
return _index->name();
}
Db* db() const
{
return _db.get();
}
const MapIndexBasePtr& getKeyCompare() const
{
return _index;
}
private:
const MapIndexBasePtr _index;
std::auto_ptr<Db> _db;
std::string _dbName;
};
class SharedDb : public ::Db
{
public:
using Db::get;
static SharedDbPtr get(const ConnectionIPtr&, const std::string&,
const std::string&, const std::string&,
const KeyCompareBasePtr&,
const std::vector<MapIndexBasePtr>&, bool);
static SharedDbPtr openCatalog(SharedDbEnv&);
~SharedDb();
void __incRef();
void __decRef();
const std::string&
dbName() const;
const std::string&
key() const;
const std::string&
value() const;
const KeyCompareBasePtr&
getKeyCompare() const;
#ifdef __HP_aCC
virtual int
get(DbTxn *txnid, Dbt *key, Dbt *data, u_int32_t flags)
{
return ::Db::get(txnid, key, data, flags);
}
#endif
typedef std::map<std::string, MapIndexI*> IndexMap;
private:
struct MapKey
{
std::string envName;
Ice::CommunicatorPtr communicator;
std::string dbName;
inline bool
operator<(const MapKey& rhs) const;
};
typedef std::map<MapKey, Freeze::SharedDb*> SharedDbMap;
SharedDb(const MapKey&, const std::string&, const std::string&,
const ConnectionIPtr&, const KeyCompareBasePtr&,
const std::vector<MapIndexBasePtr>&, bool);
SharedDb(const MapKey&, DbEnv*);
void connectIndices(const std::vector<MapIndexBasePtr>&) const;
void cleanup(bool);
MapKey _mapKey;
std::string _key;
std::string _value;
int _refCount;
Ice::Int _trace;
KeyCompareBasePtr _keyCompare;
IndexMap _indices;
static SharedDbMap* sharedDbMap;
};
inline const std::string&
SharedDb::dbName() const
{
return _mapKey.dbName;
}
inline const std::string&
SharedDb::key() const
{
return _key;
}
inline const std::string&
SharedDb::value() const
{
return _value;
}
inline const Freeze::KeyCompareBasePtr&
SharedDb::getKeyCompare() const
{
return _keyCompare;
}
inline bool
SharedDb::MapKey::operator<(const MapKey& rhs) const
{
return (communicator < rhs.communicator) ||
((communicator == rhs.communicator) && (dbName < rhs.dbName)) ||
((communicator == rhs.communicator) && (dbName == rhs.dbName) && (envName < rhs.envName));
}
}
#endif
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