Example #1
0
File: db.c Project: caomw/grass
/* create or drop database */
int create_delete_db(dbHandle *handle, int create)
{
    dbString stmt;
    const char *template_db, *name, *user, *password;
    
    PGCONN pgconn;
    PGresult *res;
    
    db_init_string(&stmt);
    
    template_db = "template1";
    name = db_get_handle_dbname(handle); /* database to create */
    
    if (parse_conn(template_db, &pgconn) == DB_FAILED) {
	db_d_report_error();
	return DB_FAILED;
    }
    G_debug(3,
	    "db_driver_create_database(): host = %s, port = %s, options = %s, tty = %s, "
	    "dbname = %s, user = %s, password = %s, "
	    "schema = %s", pgconn.host, pgconn.port, pgconn.options,
	    pgconn.tty, pgconn.dbname, pgconn.user, pgconn.password,
	    pgconn.schema);
    db_get_login("pg", template_db, &user, &password);
    
    pg_conn = PQsetdbLogin(pgconn.host, pgconn.port, pgconn.options, pgconn.tty,
			   pgconn.dbname, user, password);
    if (PQstatus(pg_conn) == CONNECTION_BAD) {
	db_d_append_error(_("Connection failed."));
	db_d_append_error("\n");
	db_d_append_error(PQerrorMessage(pg_conn));
	db_d_report_error();
	PQfinish(pg_conn);
	return DB_FAILED;
    }

    /* create new database */
    if (create)
	db_set_string(&stmt, "CREATE DATABASE ");
    else
	db_set_string(&stmt, "DROP DATABASE ");
    db_append_string(&stmt, name);
    
    res = PQexec(pg_conn,
		 db_get_string(&stmt));
    if (!res || PQresultStatus(res) != PGRES_COMMAND_OK) {
	if (create)
	    db_d_append_error(_("Unable to create database <%s>"), name);
	else
	    db_d_append_error(_("Unable to drop database <%s>"), name);
	db_d_append_error("\n");
	db_d_append_error(PQerrorMessage(pg_conn));
	db_d_report_error();
	
	PQclear(res);	
	PQfinish(pg_conn);
	return DB_FAILED;
    }

    PQclear(res);
    PQfinish(pg_conn);

    return DB_OK;
}
Example #2
0
File: db.c Project: caomw/grass
int db__driver_open_database(dbHandle * handle)
{
    char buf[500];
    const char *name, *schema, *user, *password;
    dbConnection connection;
    PGCONN pgconn;
    PGresult *res;
    int row;

    db_get_connection(&connection);
    name = db_get_handle_dbname(handle);

    /* if name is empty use connection.databaseName */
    if (strlen(name) == 0)
	name = connection.databaseName;

    G_debug(3,
	    "db_driver_open_database(): driver=pg database definition = '%s'",
	    name);

    if (parse_conn(name, &pgconn) == DB_FAILED) {
	db_d_report_error();
	return DB_FAILED;
    }

    G_debug(3,
	    "db_driver_open_database(): host = %s, port = %s, options = %s, tty = %s, "
	    "dbname = %s, user = %s, password = %s, "
	    "schema = %s", pgconn.host, pgconn.port, pgconn.options,
	    pgconn.tty, pgconn.dbname, pgconn.user, pgconn.password,
	    pgconn.schema);

    db_get_login("pg", name, &user, &password);

    pg_conn = PQsetdbLogin(pgconn.host, pgconn.port, pgconn.options, pgconn.tty,
			   pgconn.dbname, user, password);
    
    if (PQstatus(pg_conn) == CONNECTION_BAD) {
	db_d_append_error("%s\n%s",
			  _("Connection failed."),
			  PQerrorMessage(pg_conn));
	db_d_report_error();
	PQfinish(pg_conn);
	return DB_FAILED;
    }

    /* set schema */
    schema = db_get_handle_dbschema(handle);

    /* Cannot use default schema because link to table can point to
       different database */
    /*
       if ( schema ) 
       schema = connection.schemaName;
    */

    if (pgconn.schema) {
	schema = pgconn.schema;
    }

    /* set path to the schema */
    if (schema && strlen(schema) > 0) {
	sprintf(buf, "set search_path to %s", schema);
	res = PQexec(pg_conn, buf);

	if (!res || PQresultStatus(res) != PGRES_COMMAND_OK) {
	    db_d_append_error("%s %s",
			      _("Unable to set schema:"),
			      schema);
	    db_d_report_error();
	    PQclear(res);
	    return DB_FAILED;
	}
    }

    /* read internal codes */
    res = PQexec(pg_conn,
		 "select oid, typname from pg_type where typname in ( "
		 "'bit', 'int2', 'int4', 'int8', 'serial', 'oid', "
		 "'float4', 'float8', 'numeric', "
		 "'char', 'bpchar', 'varchar', 'text', "
		 "'time', 'date', 'timestamp', "
		 "'bool', 'geometry', 'topogeometry') order by oid");
    
    if (!res || PQresultStatus(res) != PGRES_TUPLES_OK) {
	db_d_append_error(_("Unable to select data types"));
	db_d_report_error();
	PQclear(res);
	return DB_FAILED;
    }

    pg_ntypes = PQntuples(res);
    pg_types = G_realloc(pg_types, 2 * pg_ntypes * sizeof(int));

    for (row = 0; row < pg_ntypes; row++) {
	int pgtype, type;

	pgtype = atoi(PQgetvalue(res, row, 0));

	pg_types[row][0] = pgtype;

        G_debug(3, "row = %d value = %s", row, PQgetvalue(res, row, 1));
	if (strcmp(PQgetvalue(res, row, 1), "bit") == 0)
	    type = PG_TYPE_BIT;
	else if (strcmp(PQgetvalue(res, row, 1), "int2") == 0)
	    type = PG_TYPE_INT2;
	else if (strcmp(PQgetvalue(res, row, 1), "int4") == 0)
	    type = PG_TYPE_INT4;
	else if (strcmp(PQgetvalue(res, row, 1), "int8") == 0)
	    type = PG_TYPE_INT8;
	else if (strcmp(PQgetvalue(res, row, 1), "serial") == 0)
	    type = PG_TYPE_SERIAL;
	else if (strcmp(PQgetvalue(res, row, 1), "oid") == 0)
	    type = PG_TYPE_OID;
	else if (strcmp(PQgetvalue(res, row, 1), "float4") == 0)
	    type = PG_TYPE_FLOAT4;
	else if (strcmp(PQgetvalue(res, row, 1), "float8") == 0)
	    type = PG_TYPE_FLOAT8;
	else if (strcmp(PQgetvalue(res, row, 1), "numeric") == 0)
	    type = PG_TYPE_NUMERIC;
	else if (strcmp(PQgetvalue(res, row, 1), "char") == 0)
	    type = PG_TYPE_CHAR;
	else if (strcmp(PQgetvalue(res, row, 1), "bpchar") == 0)
	    type = PG_TYPE_BPCHAR;
	else if (strcmp(PQgetvalue(res, row, 1), "varchar") == 0)
	    type = PG_TYPE_VARCHAR;
	else if (strcmp(PQgetvalue(res, row, 1), "text") == 0)
	    type = PG_TYPE_TEXT;
	else if (strcmp(PQgetvalue(res, row, 1), "date") == 0)
	    type = PG_TYPE_DATE;
	else if (strcmp(PQgetvalue(res, row, 1), "time") == 0)
	    type = PG_TYPE_TIME;
	else if (strcmp(PQgetvalue(res, row, 1), "timestamp") == 0)
	    type = PG_TYPE_TIMESTAMP;
	else if (strcmp(PQgetvalue(res, row, 1), "bool") == 0)
	    type = PG_TYPE_BOOL;
	else if (strcmp(PQgetvalue(res, row, 1), "geometry") == 0)
	    type = PG_TYPE_POSTGIS_GEOM;
	else if (strcmp(PQgetvalue(res, row, 1), "topogeometry") == 0)
	    type = PG_TYPE_POSTGIS_TOPOGEOM;
	else
	    type = PG_TYPE_UNKNOWN;

	G_debug(3, "db_driver_open_database(): pgtype = %d, name = %s -> type = %d", pgtype,
		PQgetvalue(res, row, 1), type);
	pg_types[row][1] = type;
    }
    
    /* print notice messages only on verbose level */
    PQsetNoticeProcessor(pg_conn, notice_processor, NULL);
    
    PQclear(res);

    return DB_OK;
}
Example #3
0
File: api.c Project: jeras/sigrok
static int hw_dev_config_set(int dev_index, int hwcap, const void *value)
{
	struct sr_dev_inst *sdi;
	struct context *ctx;
	int i;

	if (!(sdi = sr_dev_inst_get(genericdmm_dev_insts, dev_index))) {
		sr_err("genericdmm: sdi was NULL.");
		return SR_ERR_BUG;
	}

	if (!(ctx = sdi->priv)) {
		sr_err("genericdmm: sdi->priv was NULL.");
		return SR_ERR_BUG;
	}

	sr_spew("genericdmm: dev_index %d, hwcap %d.", dev_index, hwcap);

	switch (hwcap) {
	case SR_HWCAP_LIMIT_MSEC:
		if (*(const uint64_t *)value == 0) {
			sr_err("genericdmm: LIMIT_MSEC can't be 0.");
			return SR_ERR;
		}
		ctx->limit_msec = *(const uint64_t *)value;
		sr_dbg("genericdmm: Setting LIMIT_MSEC to %" PRIu64 ".",
		       ctx->limit_msec);
		break;
	case SR_HWCAP_LIMIT_SAMPLES:
		ctx->limit_samples = *(const uint64_t *)value;
		sr_dbg("genericdmm: Setting LIMIT_SAMPLES to %" PRIu64 ".",
		       ctx->limit_samples);
		break;
	case SR_HWCAP_MODEL:
		for (i = 0; dev_profiles[i].model; i++) {
			if (!strcasecmp(dev_profiles[i].model, value)) {
				ctx->profile = &dev_profiles[i];
				/* Frontends access these fields directly, so we
				 * need to copy them over. */
				sdi->vendor = g_strdup(dev_profiles[i].vendor);
				sdi->model = g_strdup(dev_profiles[i].model);
				/* This is the first time we actually know which
				 * DMM chip we're talking to, so let's init
				 * anything specific to it now */
				if (ctx->profile->chip->init)
					if (ctx->profile->chip->init(ctx) != SR_OK)
						return SR_ERR;
				break;
			}
		}
		if (!ctx->profile) {
			sr_err("unknown model %s", value);
			return SR_ERR;
		}
		break;
	case SR_HWCAP_CONN:
		if (parse_conn(sdi, value) != SR_OK)
			return SR_ERR_ARG;
		break;
	case SR_HWCAP_SERIALCOMM:
		if (parse_serialcomm(sdi, value) != SR_OK)
			return SR_ERR_ARG;
		break;
	default:
		sr_err("genericdmm: Unknown capability: %d.", hwcap);
		return SR_ERR;
		break;
	}

	return SR_OK;
}