Re: [Wrapper-user] How to catch other system events

[Leif M. <le...@ta...>]

Richard,
Sorry I never answered you did I.

The Wrapper currently catches system events in the native code,
Wrapper.DLL. It is taking any signal except the CTRL_BREAK_EVENT, which
is used to generate thread dumps.
What is the actual system signal that your card is throwing? Normally
windows does not throw any signals that I know of when a user logs in. I am
interesting in finding out how your card works because I have been looking
for a nice clean way of telling when a user logs on for a while. The next
version of the Wrapper allows you to poll for this information, but there is
no signal that I could find that is fired when a user logs on to a
Windows system.

Here is the native code that parses the signals. Note that I am passing any
unknown signals off to the JVM as well so the controlEvent method of your
WrapperListener should get them if they are thrown.

---
int wrapperConsoleHandler(int key) {
int event;

/* Call the control callback in the java code */
switch(key) {
case CTRL_C_EVENT:
event = org_tanukisoftware_wrapper_WrapperManager_WRAPPER_CTRL_C_EVENT;
break;
case CTRL_BREAK_EVENT:
/* This is a request to do a thread dump. Let the JVM handle this. */
return FALSE;
case CTRL_CLOSE_EVENT:
event = org_tanukisoftware_wrapper_WrapperManager_WRAPPER_CTRL_CLOSE_EVENT;
break;
case CTRL_LOGOFF_EVENT:
event = org_tanukisoftware_wrapper_WrapperManager_WRAPPER_CTRL_LOGOFF_EVENT;
break;
case CTRL_SHUTDOWN_EVENT:
event =
org_tanukisoftware_wrapper_WrapperManager_WRAPPER_CTRL_SHUTDOWN_EVENT;
break;
default:
event = key;
}
if (wrapperJNIDebugging) {
printf("Got Control Signal %d->%d\n", key, event);
flushall();
}

wrapperJNIHandleSignal(event);

if (wrapperJNIDebugging) {
printf("Handled signal\n");
flushall();
}

return TRUE; /* We handled the event. */
}
---

Please most back with as much info as you can make available even if you
get this working.

Cheers,
Leif

Richard Luong wrote:

> I want to hook onto the Windows Login (Gina.dll) so that I can login
> through an ID card. I can do the JNI stuff to talk from Java to the C
> dll. But I would like the C code to be able to talk back to the Java
> code through throwing events to my NT Service.
>
> My question is, does the Java Service Wrapper catch all events and
> pass them on? If that's so, then problem solved.
>
> If not, does it only pass on specific control events such as windows
> logoff, shutdown and ctr+C ?
>
> If so, can I modify the code to pass on all events? I know that I will
> have to use Integration Method #3, which is not a problem for me.
> However, any pointers to the code that is catching and possibly
> ignoring/passing on events would be helpful.
>
> Thanks.
>
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