bool USERCLIENT_KEXT_CLASSNAME::didTerminate(IOService* provider, IOOptionBits options, bool* defer) {
// If all pending I/O has been terminated, close our provider. If I/O is still outstanding, set defer to true
// and the user client will not have stop called on it.
callback_close();
*defer = false;
return super::didTerminate(provider, options, defer);
}
bool
org_pqrs_driver_KeyRemap4MacBook_UserClient_kext::didTerminate(IOService* provider, IOOptionBits options, bool* defer)
{
// If all pending I/O has been terminated, close our provider. If I/O is still outstanding, set defer to true
// and the user client will not have stop called on it.
callback_close();
*defer = false;
return super::didTerminate(provider, options, defer);
}
// clientClose is called as a result of the user process calling IOServiceClose.
IOReturn
USERCLIENT_KEXT_CLASSNAME::clientClose(void) {
// Defensive coding in case the user process called IOServiceClose
// without calling BRIDGE_USERCLIENT_CLOSE first.
callback_close();
// Inform the user process that this user client is no longer available. This will also cause the
// user client instance to be destroyed.
//
// terminate would return false if the user process still had this user client open.
// This should never happen in our case because this code path is only reached if the user process
// explicitly requests closing the connection to the user client.
if (!terminate()) {
IOLOG_ERROR("UserClient_kext::clientClose terminate() failed\n");
}
// DON'T call super::clientClose, which just returns kIOReturnUnsupported.
return kIOReturnSuccess;
}
static inline long close(long dev)
{
return callback_close(dev);
}