RFCOMMClient and Server Examples
RFCOMMClient and Server Examples
- Subject: RFCOMMClient and Server Examples
- From: "Keith Phu" <email@hidden>
- Date: Wed, 18 Sep 2002 10:34:50 +0000
Has anyone gotten the RFCOMMServer and RFCOMMClient example code to work?
I can start the server, and the 'chat server' service is visible on the
client side. But when I try to select the 'chat server' service, no
connection is made. After a day of debugging I think I've narrowed down my
problem. I think the server software isn't detecting the incoming RFCOMM
Channel being set up by the client.
Stepping through the client code, the client is stalling on the following
line.
if ((result == kIOReturnSuccess) &&
(IOBluetoothDeviceOpenRFCOMMChannel(connectToDevice ,rfcommChannelID,
&rfcommChannel) == kIOReturnSuccess))
{
which led me to believe that the server is not registering an incoming data
listener.
Now looking through the server code, it appears that it registers an
incoming data listener in the newRFCOMMChannelOpened function. This
function is supposed to be called automatically when an incoming channel is
detected. It's setup in the following line
incomgingChannelNotification = [IOBluetoothRFCOMMChannel
registerForChannelOpenNotifications:self
selector:@selector(newRFCOMMChannelOpened:) withChannelID:serverChannelID
direction:kIOBluetoothUserNotificationChannelDirectionIncoming];
Using BluetoothMonitor, I can see that an RFCOMM channel does in fact exist.
So I think that the handler (newRFCOMMChannelOpened:) is not being called
when an incoming channel event occurs.
But, I don't know what to do about it. Does anyone have any ideas? Even if
the example code worked perfectly for you without modifications, I'd like to
know.
Thanks
Keith
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