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/* psycopg.h - definitions for the psycopg python module
*
* Copyright (C) 2003 Federico Di Gregorio <fog@debian.org>
*
* This file is part of psycopg.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2,
* or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef PSYCOPG_H
#define PSYCOPG_H 1
#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include <libpq-fe.h>
#include "psycopg/config.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Python 2.5+ Py_ssize_t compatibility: */
#ifndef PY_FORMAT_SIZE_T
#define PY_FORMAT_SIZE_T ""
#endif
/* FORMAT_CODE_SIZE_T is for plain size_t, not for Py_ssize_t: */
#ifdef _MSC_VER
/* For MSVC: */
#define FORMAT_CODE_SIZE_T "%Iu"
#else
/* C99 standard format code: */
#define FORMAT_CODE_SIZE_T "%zu"
#endif
/* FORMAT_CODE_PY_SSIZE_T is for Py_ssize_t: */
#define FORMAT_CODE_PY_SSIZE_T "%" PY_FORMAT_SIZE_T "d"
#if PY_MAJOR_VERSION == 2 && PY_MINOR_VERSION >= 5
#define CONV_CODE_PY_SSIZE_T "n"
#else
#define CONV_CODE_PY_SSIZE_T "i"
typedef int Py_ssize_t;
#define PY_SSIZE_T_MIN INT_MIN
#define PY_SSIZE_T_MAX INT_MAX
#define readbufferproc getreadbufferproc
#define writebufferproc getwritebufferproc
#define segcountproc getsegcountproc
#define charbufferproc getcharbufferproc
#endif
/* DBAPI compliance parameters */
#define APILEVEL "2.0"
#define THREADSAFETY 2
#define PARAMSTYLE "pyformat"
/* C API functions */
#define psyco_errors_fill_NUM 0
#define psyco_errors_fill_RETURN void
#define psyco_errors_fill_PROTO (PyObject *dict)
#define psyco_errors_set_NUM 1
#define psyco_errors_set_RETURN void
#define psyco_errors_set_PROTO (PyObject *type)
/* Total number of C API pointers */
#define PSYCOPG_API_pointers 2
#ifdef PSYCOPG_MODULE
/** This section is used when compiling psycopgmodule.c & co. **/
HIDDEN psyco_errors_fill_RETURN psyco_errors_fill psyco_errors_fill_PROTO;
HIDDEN psyco_errors_set_RETURN psyco_errors_set psyco_errors_set_PROTO;
/* global excpetions */
extern HIDDEN PyObject *Error, *Warning, *InterfaceError, *DatabaseError,
*InternalError, *OperationalError, *ProgrammingError,
*IntegrityError, *DataError, *NotSupportedError;
#ifdef PSYCOPG_EXTENSIONS
extern HIDDEN PyObject *QueryCanceledError, *TransactionRollbackError;
#endif
/* python versions and compatibility stuff */
#ifndef PyMODINIT_FUNC
#define PyMODINIT_FUNC void
#endif
#else
/** This section is used in modules that use psycopg's C API **/
static void **PSYCOPG_API;
#define psyco_errors_fill \
(*(psyco_errors_fill_RETURN (*)psyco_errors_fill_PROTO) \
PSYCOPG_API[psyco_errors_fill_NUM])
#define psyco_errors_set \
(*(psyco_errors_set_RETURN (*)psyco_errors_set_PROTO) \
PSYCOPG_API[psyco_errors_set_NUM])
/* Return -1 and set exception on error, 0 on success. */
static int
import_psycopg(void)
{
PyObject *module = PyImport_ImportModule("psycopg");
if (module != NULL) {
PyObject *c_api_object = PyObject_GetAttrString(module, "_C_API");
if (c_api_object == NULL) return -1;
if (PyCObject_Check(c_api_object))
PSYCOPG_API = (void **)PyCObject_AsVoidPtr(c_api_object);
Py_DECREF(c_api_object);
}
return 0;
}
#endif
/* postgresql<->python encoding map */
extern HIDDEN PyObject *psycoEncodings;
typedef struct {
char *pgenc;
char *pyenc;
} encodingPair;
/* the Decimal type, used by the DECIMAL typecaster */
HIDDEN PyObject *psyco_GetDecimalType(void);
/* some utility functions */
HIDDEN void psyco_set_error(PyObject *exc, PyObject *curs, const char *msg,
const char *pgerror, const char *pgcode);
HIDDEN size_t qstring_escape(char *to, const char *from, size_t len, PGconn *conn);
/* Exceptions docstrings */
#define Error_doc \
"Base class for error exceptions."
#define Warning_doc \
"A database warning."
#define InterfaceError_doc \
"Error related to the database interface."
#define DatabaseError_doc \
"Error related to the database engine."
#define InternalError_doc \
"The database encountered an internal error."
#define OperationalError_doc \
"Error related to database operation (disconnect, memory allocation etc)."
#define ProgrammingError_doc \
"Error related to database programming (SQL error, table not found etc)."
#define IntegrityError_doc \
"Error related to database integrity."
#define DataError_doc \
"Error related to problems with the processed data."
#define NotSupportedError_doc \
"A method or database API was used which is not supported by the database."
#ifdef PSYCOPG_EXTENSIONS
#define QueryCanceledError_doc \
"Error related to SQL query cancelation."
#define TransactionRollbackError_doc \
"Error causing transaction rollback (deadlocks, serialisation failures, etc)."
#endif
#ifdef __cplusplus
}
#endif
#endif /* !defined(PSYCOPG_H) */
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