site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com Hi fellow developers, Here is the problem I'm trying to solve. - cmd-line program awakens because of the write to the mach port - cmd-line program closes port and exits. - opening ports - blocking waiting for a message - sending a message. Thank you, _ michael _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... I've got a specific problem that I have been able to solve with the Darwin notification APIs. The problem is, I just discovered these are not available prior to Panther so I need to do the same thing using a lower layer. I was wondering if any of you had some suggestions or documentation you could point me to. - cmd-line program opens up mach port - cmd-line program sends apple event to running GUI application and includes the port id in message - cmd-lin program blocks waiting for a message on the mach port - GUI program receives apple event, does some operation - finished operation and writes to the mach port passed in through the apple event - GUI program disposes of any references to the mach port This was really easy with the notify apis. The cmd-line could just register for a notification and get a file handle. Then, it could call select() on the file which would block. Through the notification apis, the file would have a notification written to it which would awaken the cmd-line program. I'm all set to use raw mach ports now, I just don't know where to begin. Can someone help me find documentation for: I'm pretty unfamiliar with this stuff so at this point, I'm pretty much a novice. This email sent to site_archiver@lists.apple.com