c_listdb.c

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/*!
 * \file db/dbmi_client/c_listdb.c
 *
 * \brief DBMI Library (client) - list databases
 *
 * (C) 1999-2008 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 "macros.h"
 
/*!
   \brief List databases
 
   \param driver db driver
   \param path db path
   \param npaths number of given paths
   \param[out] handles handle infos
   \param[out] count number of handle infos
 
   \return DB_OK on success
   \return DB_FAILED on failure
 */
int db_list_databases(dbDriver *driver, dbString *path, int npaths,
                      dbHandle **handles, int *count)
{
    int ret_code;
    int i;
    dbHandle *h;
 
    /* start the procedure call */
    db__set_protocol_fds(driver->send, driver->recv);
    DB_START_PROCEDURE_CALL(DB_PROC_LIST_DATABASES);
 
    /* arguments */
    DB_SEND_STRING_ARRAY(path, npaths);
 
    /* get the return code for the procedure call */
    DB_RECV_RETURN_CODE(&ret_code);
 
    if (ret_code != DB_OK)
        return ret_code; /* ret_code SHOULD == DB_FAILED */
 
    /* results */
    DB_RECV_INT(count);
    h = db_alloc_handle_array(*count);
    for (i = 0; i < *count; i++) {
        DB_RECV_HANDLE(&h[i]);
    }
    *handles = h;
 
    return DB_OK;
}