lobj.h

关系型数据库 Postgresql 6.5.2

/* File:            lobj.h
 *
 * Description:     See "lobj.c"
 *
 * Comments:        See "notice.txt" for copyright and license information.
 *
 */

#ifndef __LOBJ_H__
#define __LOBJ_H__


#include "psqlodbc.h"

struct lo_arg {
	int		isint;
	int		len;
	union
	{
		int		integer;
		char	*ptr;
	} u;
};

#define LO_CREAT		957
#define LO_OPEN			952
#define LO_CLOSE		953
#define LO_READ			954
#define LO_WRITE		955
#define LO_LSEEK		956
#define LO_TELL			958
#define LO_UNLINK		964

#define INV_WRITE		0x00020000
#define INV_READ		0x00040000

Oid lo_creat(ConnectionClass *conn, int mode);
int lo_open(ConnectionClass *conn, int lobjId, int mode);
int lo_close(ConnectionClass *conn, int fd);
int lo_read(ConnectionClass *conn, int fd, char *buf, int len);
int lo_write(ConnectionClass *conn, int fd, char *buf, int len);
int lo_lseek(ConnectionClass *conn, int fd, int offset, int len);
int lo_tell(ConnectionClass *conn, int fd);
int lo_unlink(ConnectionClass *conn, Oid lobjId);

#endif