Subj : Re: asynchronous cancel vs calling pthread_exit in signal handler
To   : comp.unix.programmer,comp.programming.threads
From : Dave
Date : Fri Apr 22 2005 04:17 pm

so what is the general rule?
(1) If I'm sure that the signal doesn't interrupt any
nonasync-signal-safe functions, can I call nonasync-signal-safe
function in the signal handler?

The example Marc Rochkind gave in this Advanced Unix Programming book
uses _exit instead of exit to terminate a process. So by saying leaving
shared data in invalid state what kind of shared data is being referred
to? If I used exit() instead _exit() to terminate a process in a signal
handler would that possibly cause the OS or other processes to exhibit
undefined behavior?

thanks

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