On Sep 2, 2010, at 7:37 PM, Abhijeet Singh wrote: > Hi,I am working on a multithreaded software that runs on a medical > instrument. The software has 2 parts. GUI and worker threads (worker threads > sends commands to instrument). The GUI is developed using ObjectiveC and > Cocoa. Worker threads are all in C and Carbon.It is a Cocoa application.I am > working on GUI of the software.When the application starts it first creates > worker threads ( that initializes the hardware/instrument). Once the threads > are created one of the thread sends a message back to main thread. My problem > isi need to start a timer when the main thread receives a message from worker > thread. I am starting a timer as follows:timer = [[NSTimer > scheduledTimerWithTimeInterval:10.0 target:self > selector:@selector(turnOffLight:) userInfo:nil repeats:NO] retain];But it > does not work. I debugged it and found that the timer is created but > "turnOffLight" is never executed.Then I created the timer just before worker > threads creation and it worked. Can anybody help me in resol > ving this problem.Thanks & RegardsAbhijeetGet Yourself a cool, short @in.com > Email ID now!Report spam > _
How is the worker thread sending the message back to the main thread? Are you sure that the code is actually executing on the main thread? The NSTimer may not be scheduled on the main thread and that often means it won't get executed. If your message back to the main thread is a callback, try using performSelectorOnMainThread: to make sure the code is executed on the proper thread. Wyatt_______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
