sql.h
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2004, 2005 Free Software Foundation, Inc.
This library 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 2 of the License, or (at your option) any later version.
This library 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.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifndef _MAILUTILS_SQL_H
#define _MAILUTILS_SQL_H
/* Loadable Modules Suppert */
#define __s_cat2__(a,b) a ## b
#define __s_cat3__(a,b,c) a ## b ## c
#define RDL_EXPORT(module,name) __s_cat3__(module,_LTX_,name)
typedef int (*rdl_init_t) (void);
typedef void (*rdl_done_t) (void);
#ifdef _HAVE_LIBLTDL //FIXME: Remove leading _ when SQL + ltdl works
# define MU_DECL_SQL_DISPATCH_T(mod) \
mu_sql_dispatch_t RDL_EXPORT(mod,dispatch_tab)
#else
# define MU_DECL_SQL_DISPATCH_T(mod) \
mu_sql_dispatch_t __s_cat2__(mod,_dispatch_tab)
#endif
enum mu_sql_connection_state {
mu_sql_not_connected,
mu_sql_connected,
mu_sql_query_run,
mu_sql_result_available
};
typedef struct mu_sql_connection *mu_sql_connection_t;
struct mu_sql_connection
{
int interface;
char *server;
int port;
char *login;
char *password;
char *dbname;
void *data;
enum mu_sql_connection_state state;
};
typedef struct mu_sql_dispatch mu_sql_dispatch_t;
struct mu_sql_dispatch
{
char *name;
int port;
int (*init) (mu_sql_connection_t conn);
int (*destroy) (mu_sql_connection_t conn);
int (*connect) (mu_sql_connection_t conn);
int (*disconnect) (mu_sql_connection_t conn);
int (*query) (mu_sql_connection_t conn, char *query);
int (*store_result) (mu_sql_connection_t conn);
int (*release_result) (mu_sql_connection_t conn);
int (*num_tuples) (mu_sql_connection_t conn, size_t *np);
int (*num_columns) (mu_sql_connection_t conn, size_t *np);
int (*get_column) (mu_sql_connection_t conn, size_t nrow, size_t ncol,
char **pdata);
const char *(*errstr) (mu_sql_connection_t conn);
};
/* Public interfaces */
int mu_sql_interface_index (char *name);
int mu_sql_connection_init (mu_sql_connection_t *conn, int interface,
char *server, int port, char *login,
char *password, char *dbname);
int mu_sql_connection_destroy (mu_sql_connection_t *conn);
int mu_sql_connect (mu_sql_connection_t conn);
int mu_sql_disconnect (mu_sql_connection_t conn);
int mu_sql_query (mu_sql_connection_t conn, char *query);
int mu_sql_store_result (mu_sql_connection_t conn);
int mu_sql_release_result (mu_sql_connection_t conn);
int mu_sql_num_tuples (mu_sql_connection_t conn, size_t *np);
int mu_sql_num_columns (mu_sql_connection_t conn, size_t *np);
int mu_sql_get_column (mu_sql_connection_t conn, size_t nrow, size_t ncol,
char **pdata);
const char *mu_sql_strerror (mu_sql_connection_t conn);
#endif