September 2007 - Bluetooth-dev

Re: Connection timeout + Concurrent connections
by b00mer＠mail386.com 08 Sep '07

08 Sep '07

site_archiver(a)lists.apple.com Delivered-To: bluetooth-dev(a)lists.apple.com User-agent: www.mail386.com Jason, > sorry for the late reply, I don't know how I missed this message. No problem, if I was in a hurry I would repost this message. :) > timeouts are only supplied by lower-level functions. the other app > might just be waiting for something, and not sending you data. e.g. > OBEX Browsing - the user is just staring at the directory, and not > clicking anything. no data is sent in this case. choosing a timeout in > this case is not relevant. thus, timeouts are left to an exercise to > the user of the OBEX Session. I have thought that much. > you can do your app multi-threaded, just make sure you do ALL > Bluetooth related activities on the first thread from which you call > anything in the Bluetooth stack. Bluetooth is not threadsafe. we > recommend you doing it from the main thread, especially if you are > doing Bluetooth UI of any kind. Actually I thought designing BT stuff single-threaded is harder than multi-threaded, though seeing that I must do discovery, SDP query and OBEX transfer sequentially and not simultaneously, I don't think it's hard now. I will just set up a timer that will act as sort of scheduler - stop the connection (if it is going nowhere) or start the connection when a connection slot is available (I can't do more than 7 connections at a time). Thank you, Boris ___________________________________________________________________________ Najhitrejši brezplačni klicni dostop :: Varno in zanesljivo po internetu Obiščite http://www.dialup386.com/ _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: Connection timeout + Concurrent connections
by Bubba Giles 07 Sep '07

07 Sep '07

site_archiver(a)lists.apple.com Delivered-To: bluetooth-dev(a)lists.apple.com On Aug 5, 2007, at 11:49 PM, b00mer(a)mail386.com wrote: Jason, you should probably implement a data receive timer in your app, and if you don't receive any data and your timeout, then just close the connection on OBEXSession. OBEX doesn't really have a notion of timeouts, so there is no API that can help you there. you should do all Bluetooth from whatever thread the first Bluetooth command is send from. I suggest you stick with doing everything from the main thread if possible, you will have the most success doing it that way. jason _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.… I did that and it works as expected. So, "automatic timeouts" are only possible using low-level BT connections? sorry for the late reply, I don't know how I missed this message. timeouts are only supplied by lower-level functions. the other app might just be waiting for something, and not sending you data. e.g. OBEX Browsing - the user is just staring at the directory, and not clicking anything. no data is sent in this case. choosing a timeout in this case is not relevant. thus, timeouts are left to an exercise to the user of the OBEX Session. Doing BT stuff single threaded is giving me problems though. Designing multi-threaded applications is much simpler. Are you sure I can't do it multi-threaded? you can do your app multi-threaded, just make sure you do ALL Bluetooth related activities on the first thread from which you call anything in the Bluetooth stack. Bluetooth is not threadsafe. we recommend you doing it from the main thread, especially if you are doing Bluetooth UI of any kind. This email sent to site_archiver(a)lists.apple.com

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Weird SDP query behavior
by b00mer＠mail386.com 06 Sep '07

06 Sep '07

site_archiver(a)lists.apple.com Delivered-To: bluetooth-dev(a)lists.apple.com User-agent: www.mail386.com Hi, I've made an application that does BT device discovery and sends an SDP query when the new device is found. Trouble is when I call IOBluetoothDevicePerformSDPQuery (using callback function) discovery stops - the registered InquiryComplete callback is called immediately with error=0 and aborted=false. Is this a bug? Can't I do the inquiry and SDP query with one local device at the same time? I see little use of async calls for inquiry and query then. Regards, Boris ___________________________________________________________________________ Najhitrejši brezplačni klicni dostop :: Varno in zanesljivo po internetu Obiščite http://www.dialup386.com/ _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: BluetoothInquiryExample in C ?
by Brian OBrien 03 Sep '07

03 Sep '07

site_archiver(a)lists.apple.com Delivered-To: bluetooth-dev(a)lists.apple.com User-agent: Thunderbird 2.0.0.6 (Macintosh/20070728) Hi, I have only found examples in ObjectiveC. If you find any please let me know. I think I'm going to buy a book. Thanks ! This email sent to bobrien(a)ucalgary.ca begin:vcard fn:Brian O'Brien n:O'Brien;Brian org:Foothills Hospital / University Of Calgary;Seaman Family MR Research Center adr:;;1403 29th St. NW;Calgary;AB;T2N 2T9;Canada email;internet:bobrien@ucalgary.ca title:PACS System Manager tel;work:(403) 944-1637 tel;fax:(403) 270-7907 tel;home:(403) 770-0228 tel;cell:(403) 471-9459 x-mozilla-html:TRUE url:www.imaginginformatics.ca version:2.1 end:vcard _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com Jouini Karim wrote: Please is there any C version of the Bluetooth examples provided by Apple ? Regards, Karim _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/bobrien%40ucalgary.ca

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BluetoothInquiryExample in C ?
by Jouini Karim 03 Sep '07

03 Sep '07

site_archiver(a)lists.apple.com Delivered-To: Bluetooth-dev(a)lists.apple.com User-agent: Thunderbird 2.0.0.6 (Windows/20070728) Hi, Please is there any C version of the Bluetooth examples provided by Apple ? Thanks ! Regards, Karim _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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