I don't know what you mean by a "NONEMain Binder Thread," but each process using the Binder will have multiple threads running in a thread pool to process incoming transactions and other work.
Also there is no strong rule about the main thread ending up in the thread pool (and nothing really special about that thread if it does go into the thread pool vs. any of the other spawned threads); in fact for normal app processes the main thread sits in the Java Looper class processing the main message queue of the process. The system process is a little different, in that I believe the main thread gets put into the binder thread pool, and another thread is created and runs what serves as the main message queue/loop of the process, but it is really only done this way due to convenience of implementation. On Sat, Jan 3, 2009 at 11:08 PM, gan <[email protected]> wrote: > > Hi: > > When I use "ps -p -t" to get the process and thread information, I > ofter found many "Binder Thread" belong to one Process. > > My understanding is: > Only one "Binder Thread" is the "main Binder Thread" of that process. > It would be blocked in ioctl used for "waiting to read". (later to > execute some command by "BnXXXX::onTransact" according to read > contents. ) > And it would be wake up by ioctl "writing" invoked by another > process's BpBinder::transact. > > I found > /*spawn a new thread if we leave this out */ > at the end of binder_thread_read. > > My question is: > What the "NONEMain Binder Thread" used for? > Why new thread spawned? > What is it's relationship with old "main binder thread"? > > Thanks&BstRgds > gan > > > > -- Dianne Hackborn Android framework engineer [email protected] Note: please don't send private questions to me, as I don't have time to provide private support. All such questions should be posted on public forums, where I and others can see and answer them. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "android-framework" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-framework?hl=en -~----------~----~----~----~------~----~------~--~---
