iokit/Kernel/IOServicePM.cpp

430         fIdleTimer = thread_call_allocate(
499         if ( fIdleTimer ) {
500             thread_call_cancel(fIdleTimer);
501             thread_call_free(fIdleTimer);
502             fIdleTimer = NULL;
732     if (fIdleTimer && thread_call_cancel(fIdleTimer))
3041     pending = thread_call_enter_delayed(fIdleTimer, deadline);
4806         if (fIdleTimer && thread_call_cancel(fIdleTimer))