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/*!
* \file db/dbmi_client/db.c
*
* \brief DBMI Library (client) - open/close driver/database connection
*
* (C) 1999-2009 by the GRASS Development Team
*
* This program is free software under the GNU General Public
* License (>=v2). Read the file COPYING that comes with GRASS
* for details.
*
* \author Joel Jones (CERL/UIUC), Radim Blazek
*/
#include <grass/dbmi.h>
#include <grass/glocale.h>
#include "macros.h"
/*!
\brief Open driver/database connection
\param drvname driver name
\param dbname database name
\return pointer to dbDriver structure
\return NULL on failure
*/
dbDriver *db_start_driver_open_database(const char *drvname, const char *dbname)
{
dbHandle handle;
dbDriver *driver;
G_debug(3, "db_start_driver_open_database(): drvname='%s', dbname='%s'",
drvname, dbname);
db_init_handle(&handle);
driver = db_start_driver(drvname);
if (driver == NULL) {
G_warning(_("Unable to start driver <%s>"), drvname);
return NULL;
}
db_set_handle(&handle, dbname, NULL);
if (db_open_database(driver, &handle) != DB_OK) {
G_warning(_("Unable to open database <%s> by driver <%s>"), dbname,
drvname);
db_shutdown_driver(driver);
return NULL;
}
return driver;
}
/*!
\brief Close driver/database connection
\param driver db driver
\return DB_OK or DB_FAILED
*/
int db_close_database_shutdown_driver(dbDriver *driver)
{
int status;
status = db_close_database(driver);
G_debug(2, "db_close_database() result: %d (%d means success)", status,
DB_OK);
if (db_shutdown_driver(driver) != 0) {
status = DB_FAILED;
G_debug(2, "db_shutdown_driver() failed");
}
return status;
}
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