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Published on 2010-04-05T20:36:35Z
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2010/04/05
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Hello,
Is there any situation in which classic UNIX signals are lost?
Thank you!
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I am trying to actually study the signal handling behavior in multiprocess system. I have a system where there are three signal generating processes generating signals of type SIGUSR1 and SIGUSR1. I have two handler processes that handle a particular type of signal. I have another monitoring process…
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I am having difficulty in understanding IPC in multiprocess system. I have this system where there are three child processes that send two types of signals to their process group. There are four types of signal handling processes responsible for a particular type of signal.
There is this monitoring…
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void main ()
{
int c;
signal (SIGINT, Handle);
while (( c = getchar()) != '\n' );
return();
}
void Handle(signum)
{
signal {SIGINT, Handle);
printf ("beep \n");
}
I thought it would print 'beep' until any key has been pressed but the method call is outside the loop? :S
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Is there a way to map a signal number (e.g. signal.SIGINT) to its respective name (i.e. "SIGINT")?
I'd like to be able to print the name of a signal in the log when I receive it, however I cannot find a map from signal numbers to names in Python, i.e.
import signal
def signal_handler(signum, frame):
…
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This is the last issue with this app. Periodic force close situations. I think something
should be on another thread but I'm not sure what. Anyway, I can always count on a freeze
on first install. If I wait, eventually (maybe 10 seconds) the app comes around, maybe more.
here is an excerpt from…
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