Re: Can fork be used in a signal handler?

kiran <edu.mvk@xxxxxxxxx> writes:

I have a problem that i have to create a new process, when my process
gets a SIGCHLD.
So i want to use fork inside the signal handler for SIGCHLD.

Can i use like that? I know that non-reentrant functions can not be
used inside a signal handler. Is fork() a reentrant function or not?

And in the signal handler i'm traversing a linked list which has the
complexity of O(n2). Is that ok if a signal handler to be that heavy?
Note: no global variables are being changed inside the handler.

How do you guarantee that the linked list is in a stable state in the
signal handler?

fork() can legally be called from signal handlers (per POSIX).

See http://www.unix.org/single_unix_specification/

Casper
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Statements on Sun products included here are not gospel and may
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