mirror of
https://github.com/psycopg/psycopg2.git
synced 2024-11-15 05:26:37 +03:00
c4ffc0d940
The type 'long' with Windows Visual C is 32bits in size for both 32bit and 64bit platforms. Changed type of variables that could be > 2GB from long to Py_ssize_t.
102 lines
3.6 KiB
C
102 lines
3.6 KiB
C
/* lobject.h - definition for the psycopg lobject type
|
|
*
|
|
* Copyright (C) 2006-2010 Federico Di Gregorio <fog@debian.org>
|
|
*
|
|
* This file is part of psycopg.
|
|
*
|
|
* psycopg2 is free software: you can redistribute it and/or modify it
|
|
* under the terms of the GNU Lesser General Public License as published
|
|
* by the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* In addition, as a special exception, the copyright holders give
|
|
* permission to link this program with the OpenSSL library (or with
|
|
* modified versions of OpenSSL that use the same license as OpenSSL),
|
|
* and distribute linked combinations including the two.
|
|
*
|
|
* You must obey the GNU Lesser General Public License in all respects for
|
|
* all of the code used other than OpenSSL.
|
|
*
|
|
* psycopg2 is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
|
|
* License for more details.
|
|
*/
|
|
|
|
#ifndef PSYCOPG_LOBJECT_H
|
|
#define PSYCOPG_LOBJECT_H 1
|
|
|
|
#include <libpq/libpq-fs.h>
|
|
|
|
#include "psycopg/connection.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
extern HIDDEN PyTypeObject lobjectType;
|
|
|
|
typedef struct {
|
|
PyObject HEAD;
|
|
|
|
connectionObject *conn; /* connection owning the lobject */
|
|
long int mark; /* copied from conn->mark */
|
|
|
|
char *smode; /* string mode if lobject was opened */
|
|
int mode; /* numeric version of smode */
|
|
|
|
int fd; /* the file descriptor for file-like ops */
|
|
Oid oid; /* the oid for this lobject */
|
|
} lobjectObject;
|
|
|
|
/* functions exported from lobject_int.c */
|
|
|
|
RAISES_NEG HIDDEN int lobject_open(lobjectObject *self, connectionObject *conn,
|
|
Oid oid, const char *smode, Oid new_oid,
|
|
const char *new_file);
|
|
RAISES_NEG HIDDEN int lobject_unlink(lobjectObject *self);
|
|
RAISES_NEG HIDDEN int lobject_export(lobjectObject *self, const char *filename);
|
|
|
|
RAISES_NEG HIDDEN Py_ssize_t lobject_read(lobjectObject *self, char *buf, size_t len);
|
|
RAISES_NEG HIDDEN Py_ssize_t lobject_write(lobjectObject *self, const char *buf,
|
|
size_t len);
|
|
RAISES_NEG HIDDEN Py_ssize_t lobject_seek(lobjectObject *self, Py_ssize_t pos, int whence);
|
|
RAISES_NEG HIDDEN Py_ssize_t lobject_tell(lobjectObject *self);
|
|
RAISES_NEG HIDDEN int lobject_truncate(lobjectObject *self, size_t len);
|
|
RAISES_NEG HIDDEN int lobject_close(lobjectObject *self);
|
|
|
|
#define lobject_is_closed(self) \
|
|
((self)->fd < 0 || !(self)->conn || (self)->conn->closed)
|
|
|
|
/* exception-raising macros */
|
|
|
|
#define EXC_IF_LOBJ_CLOSED(self) \
|
|
if (lobject_is_closed(self)) { \
|
|
PyErr_SetString(InterfaceError, "lobject already closed"); \
|
|
return NULL; }
|
|
|
|
#define EXC_IF_LOBJ_LEVEL0(self) \
|
|
if (self->conn->autocommit) { \
|
|
psyco_set_error(ProgrammingError, NULL, \
|
|
"can't use a lobject outside of transactions"); \
|
|
return NULL; \
|
|
}
|
|
#define EXC_IF_LOBJ_UNMARKED(self) \
|
|
if (self->conn->mark != self->mark) { \
|
|
psyco_set_error(ProgrammingError, NULL, \
|
|
"lobject isn't valid anymore"); \
|
|
return NULL; \
|
|
}
|
|
|
|
/* Values for the lobject mode */
|
|
#define LOBJECT_READ 1
|
|
#define LOBJECT_WRITE 2
|
|
#define LOBJECT_BINARY 4
|
|
#define LOBJECT_TEXT 8
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* !defined(PSYCOPG_LOBJECT_H) */
|