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/* psycopg.h - definitions for the psycopg python module
*
* Copyright (C) 2003-2010 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_H
#define PSYCOPG_H 1
#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include <libpq-fe.h>
#include "psycopg/config.h"
#include "psycopg/python.h"
#ifdef __cplusplus
extern "C" {
#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 char *psycopg_escape_string(PyObject *conn,
const char *from, Py_ssize_t len, char *to, Py_ssize_t *tolen);
/* 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 cancellation."
#define TransactionRollbackError_doc \
"Error causing transaction rollback (deadlocks, serialisation failures, etc)."
#endif
#ifdef __cplusplus
}
#endif
#endif /* !defined(PSYCOPG_H) */
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