#include "global.h"


/*
 * mqtt_rtlm_log() Log database connection message
 *
 * @fmt = format string
 * @... = argument list
 * return: none
 */
static void
mqtt_rtlm_log(const char *fmt, ...)
{
	va_list lst;

	va_start(lst, fmt);
	vsyslog(LOG_ERR, fmt, lst);
	va_end(lst);
}
#define MQTT_DB_LOG(_sql)	(assert((_sql)), mqtt_rtlm_log("Error:: SQL #%d - %s", \
					sqlite3_errcode((_sql)), sqlite3_errmsg((_sql))))


/*
 * mqtt_rtlm_open() Open database connection
 *
 * @csCfgName = config filename
 * return: NULL error or SQL handle
 */
sqlite3 *
mqtt_rtlm_open(sl_config *cfg)
{
	sqlite3 *sql = NULL;
	const char *str = NULL;

	if (!cfg)
		return NULL;

	str = (const char*) cfg_GetAttribute(cfg, CFG("mqtt_acc"), CFG("name"));
	if (!str) {
		mqtt_rtlm_log("Error:: Unknown database name ...\n");
		return NULL;
	}

	if (sqlite3_open_v2(str, &sql, SQLITE_OPEN_READONLY, NULL)) {
		MQTT_DB_LOG(sql);
		sqlite3_close(sql);
		return NULL;
	}

	return sql;
}

/*
 * mqtt_rtlm_close() Close database connection
 *
 * @sql = SQL handle
 * return: none
 */
void
mqtt_rtlm_close(sqlite3 *sql)
{
	sqlite3_close(sql);
}