rem: disconnect_db(_h); aug_free(_h);
add: con = (struct pool_con*)handle->tail; if (pool_remove(con) != 0) { free_connection((struct pg_con*)con); }
context: void db_close(db_con_t* _h){	DLOG("db_close", "entry");	if(! _h)	{		PLOG("db_close", "no handle passed, ignored");		return;	}	disconnect_db(_h);	aug_free(_h);}