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/* connection.h - definition for the psycopg connection type
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* Copyright (C) 2003 Federico Di Gregorio <fog@debian.org>
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* This file is part of psycopg.
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2,
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* or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#ifndef PSYCOPG_CONNECTION_H
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#define PSYCOPG_CONNECTION_H 1
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/* connection status */
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#define CONN_STATUS_READY 1
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#define CONN_STATUS_BEGIN 2
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#define CONN_STATUS_SYNC 3
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#define CONN_STATUS_ASYNC 4
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extern PyTypeObject connectionType;
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pthread_mutex_t lock; /* the global connection lock */
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char *dsn; /* data source name */
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char *critical; /* critical error on this connection */
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char *encoding; /* current backend encoding */
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long int closed; /* 2 means connection has been closed */
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long int isolation_level; /* isolation level for this connection */
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long int mark; /* number of commits/rollbacks done so far */
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int status; /* status of the connection */
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int protocol; /* protocol version */
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PGconn *pgconn; /* the postgresql connection */
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PyObject *async_cursor;
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/* notice processing */
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PyObject *notice_list;
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PyObject *notice_filter;
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/* errors (DBAPI-2.0 extension) */
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PyObject *exc_Warning;
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PyObject *exc_InterfaceError;
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PyObject *exc_DatabaseError;
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PyObject *exc_InternalError;
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PyObject *exc_OperationalError;
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PyObject *exc_ProgrammingError;
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PyObject *exc_IntegrityError;
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PyObject *exc_DataError;
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PyObject *exc_NotSupportedError;
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/* C-callable functions in connection_int.c and connection_ext.c */
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extern int conn_connect(connectionObject *self);
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extern void conn_close(connectionObject *self);
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extern int conn_commit(connectionObject *self);
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extern int conn_rollback(connectionObject *self);
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extern int conn_switch_isolation_level(connectionObject *self, int level);
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extern int conn_set_client_encoding(connectionObject *self, char *enc);
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/* exception-raising macros */
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#define EXC_IF_CONN_CLOSED(self) if ((self)->closed > 0) { \
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PyErr_SetString(InterfaceError, "connection already closed"); \
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#endif /* !defined(PSYCOPG_CONNECTION_H) */