Thanks Dave & Hackborn! I will study the media/camera code. And I think that will be help for my project :-)
Also I found another sample where java and native daemon interacted with socket. It's also helpful to me. Thanks again! -Jarod On Dec 9, 4:16 am, Dave Sparks <[EMAIL PROTECTED]> wrote: > Binder has an asynchronous mode which is appropriate for server to > client communications. You'll find samples of this in the media and > camera service where a native process sends an asynchronous message to > a Java client. > > On Dec 7, 6:57 pm, Jarod LIU <[EMAIL PROTECTED]> wrote: > > > Thanks a lot for response, Hackborn. > > > My case is that a native process have to send some messages to a java > > runtime service to broadcast some notification. So it's going across > > process. > > > I know I can use socket, but I want to know if the Binder can be used > > in > > this case. In other words, can binder be used as a new full duplex IPC > > mechanism or it's only suitable for a client-server mode. > > > Thanks > > -Jarod > > > On Dec 8, 9:52 am, "Dianne Hackborn" <[EMAIL PROTECTED]> wrote: > > > > If you are running in the process, it is just JNI -- you can look online > > > for > > > good references on JNI. Note that this is not expressed as "messages," > > > but > > > just a standard API for invoking methods in the Java runtime. > > > > If you are going across processes, often we do this using the Binder IPC > > > system, but you can use any standard Linux mechanism if that is more > > > appropriate. You could, for example, define an interface in aidl that is > > > implemented by Java, and write the native side of the IPC for native > > > calls. > > > Unfortunately aidl currently can't spit out a native version of the > > > interfaces, so this can be a little awkward. > > > > On Sun, Dec 7, 2008 at 5:35 PM, Jarod LIU <[EMAIL PROTECTED]> wrote: > > > > > Hi All, > > > > > I'm looking for the interaction mechanism between java runtime and > > > > native space. > > > > > From the google IO, I got some suggestions about how java layer can > > > > invoke native services. > > > > > But can any friends share some knowledge about how a native service > > > > can send some message to jave runtime? > > > > > Thanks > > > > -Jarod > > > > -- > > > 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 -~----------~----~----~----~------~----~------~--~---
