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/*-------------------------------------------------------------------------
*
* FILE
* pglobject.h
*
* DESCRIPTION
* declaration of the PGlobj class.
* PGlobj encapsulates a large object interface to Postgres backend
*
* Copyright (c) 1994, Regents of the University of California
*
*
* $Id: pglobject.h,v 1.2 1999/05/23 01:04:03 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef PGLOBJ_H
#define PGLOBJ_H
#include "pgconnection.h"
// buffer size
#define BUFSIZE 1024
// ****************************************************************
//
// PgLargeObject - a class for accessing Large Object in a database
//
// ****************************************************************
class PgLargeObject : public PgConnection {
private:
int pgFd;
Oid pgObject;
string loStatus;
public:
PgLargeObject(const char* conninfo = 0); // use reasonable defaults and create large object
PgLargeObject(Oid lobjId, const char* conninfo = 0); // use reasonable defaults and open large object
~PgLargeObject(); // close connection and clean up
void Create();
void Open();
void Close();
int Read(char* buf, int len);
int Write(const char* buf, int len);
int LSeek(int offset, int whence);
int Tell();
int Unlink();
Oid LOid();
Oid Import(const char* filename);
int Export(const char* filename);
string Status();
private:
void Init(Oid lobjId = 0);
};
#endif // PGLOBJ_H
// sig 11's if the filename points to a binary file.
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