Abnormal Interpreter Shutdown

[k3xji]

Hi all,

Is there anyway to detect abnormal interpreter shutdown like (closing
from task manager, power shutdown of the PC..etc)?

Regards,

 

[Tim Golden]

Hi all,

Is there anyway to detect abnormal interpreter shutdown like (closing
from task manager, power shutdown of the PC..etc)?

"Task Manager" suggests you're using Windows, on which basis
you've got a few options open to you, but fundamentally if
someone pulls the plug on the PC you're not going to spot it.

Look at the SetConsoleCtrlHandler API[1], which is available
in the pywin32 package, and the WMI power events[2]. I don't
know exactly how far each one will go if someone stomps on
your process, but they're definitely worth looking at.

TJG

[1] http://msdn.microsoft.com/en-us/library/ms686016(VS.85).aspx
[2] http://msdn.microsoft.com/en-us/library/aa394362(VS.85).aspx

 

[Terry Reedy]

Hi all,

Is there anyway to detect abnormal interpreter shutdown like (closing
from task manager, power shutdown of the PC..etc)?

"Task Manager" suggests you're using Windows, on which basis
you've got a few options open to you, but fundamentally if
someone pulls the plug on the PC you're not going to spot it.

Look at the SetConsoleCtrlHandler API[1], which is available
in the pywin32 package, and the WMI power events[2]. I don't
know exactly how far each one will go if someone stomps on
your process, but they're definitely worth looking at.

TJG

[1] http://msdn.microsoft.com/en-us/library/ms686016(VS.85).aspx
[2] http://msdn.microsoft.com/en-us/library/aa394362(VS.85).aspx

If you mean detecting abnormal shutdown after the fact, as opposed to
catching it while happening, you could create an empty temp file when
the program starts and delete it upon normal termination.

 

[k3xji]

If you mean detecting abnormal shutdown after the fact, as opposed to

catching it while happening, you could create an empty temp file when
the program starts and delete it upon normal termination.

I have a server application, and I want to take some actions *before*
the shutdown. I assumed to have some kind of event or Exception being
raised when Interpreter is closed abnormally.

I will take a look at the links.

Thanks a lot.

 

[k3xji]

I think what I am looking for is SetConsoleCtrlHandler(..) which
receives signals for CTRL+C and system shutdown. I don't want to take
the power outage into account because as far as I can see there is no
portable/simple/reliable way to accomplish that. So, thanks for the
tip again.

So what is the equivalent of this API in Linux? How can I accomplish
the same behavior for Linux?

Thanks a lot.

 

[Gabriel Genellina]

I think what I am looking for is SetConsoleCtrlHandler(..) which
receives signals for CTRL+C and system shutdown. I don't want to take
the power outage into account because as far as I can see there is no
portable/simple/reliable way to accomplish that. So, thanks for the
tip again.

So what is the equivalent of this API in Linux? How can I accomplish
the same behavior for Linux?

Using signal - see http://linux.die.net/man/7/signal and signal(2)

 

[Terry Reedy]

I think what I am looking for is SetConsoleCtrlHandler(..) which
receives signals for CTRL+C and system shutdown. I don't want to take
the power outage into account because as far as I can see there is no
portable/simple/reliable way to accomplish that. So, thanks for the
tip again.

If your hardware is connected to a UPS (uninterruptable power supply aka
battery backup) that signals the OS when power has gone and it has
switched to the battery, you should be able to respond to that also.