Just use something like __attribute__ ((__packed__)) for your structure and you can always cast back and forth from the pointer to your structure to an array of bytes (char*). Just make sure that both systems have same ending (little or big) and that members' order is correct. Otherwise you'll have to swap data within let's say m_voltageMask . Mikhail > -----Original Message----- > From: gtk-list-bounces@xxxxxxxxx [mailto:gtk-list-bounces@xxxxxxxxx] On > Behalf Of Igor Korot > Sent: Friday, April 08, 2011 5:43 PM > To: gtk-list@xxxxxxxxx > Subject: Re: Question about GTK+ and timers > >> Is it possible to use m_data with GIOChannel? > > > > of course. > > > > but you'd better hope that the compiler packs that data structure in > > the same way the device is sending it. you'd be far better off not > > using a struct for this, but just reading (in your case) 10 bytes. > > > > sending raw C structs over any kind of "wire protocol" almost always > > turns out to be huge mistake unless its been very carefully thought > > about. > > > So best way is to use char m_data[10]? > > And then just get m_data[4], m_data[5], m_data[6], m_data[7], > m_data[8] and m_data[9]? > > I am getting bytes over the wire thru the serial port and transfer is > performed on the client side. > > read( handle, &m_data, 10 ); > > I am just getting 10 bytes which are represented on the client as > m_data members. > > Am I wrong here? It's possible there will be a packing issue, but I'm > about to test this. > > Thank you. > > > > _______________________________________________ > gtk-list mailing list > gtk-list@xxxxxxxxx > http://mail.gnome.org/mailman/listinfo/gtk-list _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
