Hi, Robert,
On Thu, Apr 7, 2011 at 12:59 AM, Robert Pearce <rob@xxxxxxxxxxxxxxxxxxxx> wrote:
> Hi Igor,
>
> On Wed, 6 Apr 2011 22:38:43 -0700 you wrote:
>>
>> Just one question: AFAIU this pair is polling the port for data and
>> when they become available I need to
>> drop them in the GUI.
>> It's going to be something like MT, right?
>
> MT?
>
> It's not a threaded approach, if that's what you mean.
>
> Open the serial port and attach it to a g_io_channel:
> fd = open ( "/dev/ttyS0", O_RDWR|O_NONBLOCK );
> hFile = g_io_channel_unix_new ( fd );
> g_io_channel_set_encoding ( hFile, NULL, &tErrPtr );
>
> Now you can hook up a call-back:
> RxEventSrc = g_io_add_watch ( hFile, G_IO_IN, HandleAsyncRx, (gpointer)Instance );
But isn't it the same as registering the timer?
>
> Then in the call-back you read the incoming data and pass it to the GUI:
> gboolean HandleAsyncRx ( GIOChannel *source, GIOCondition condition,
> gpointer data)
> {
> GIOStatus stat;
> gsize len;
> GError * err = NULL;
> unsigned char tmpbuf[32];
>
> stat = g_io_channel_read_chars ( source,
> (gchar*)tmpbuf, sizeof(tmpbuf), &len, &err );
>
> // etc
And this is done the same way as the timer: it creates thread and
performs this function in it, right?
Thank you.
>
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