OS X Process Control

[Aviv Giladi]

Hey guys,

 

I'm writing a process-controller kernel extension for leopard. The application enables me to suspend process's with SIGSUS and to make the computer sleep. My problem is when an application that uses video / audio (e.g iTunes or GarageBand) is suspended and then I try to make the computer sleep, he sleep process waits on the audio / video application to end with a timeout of 30 seconds. In reality, when i try to put the computer in to sleep when an audio / video application is suspended, the computer hangs for 30 seconds (probably the suspended application is not responding to the sleep request) and then it sleeps normally. When I put the computer out of sleep and send SIGCON to the video / audio application, it continues normally.

Is there a way to change that 30 sec wait time out? Or to make it not wait at all? Or any ohter solution?

 

 

Thanks!