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Re: A question on sigchld_handler

From: Andreas Schwab
Subject: Re: A question on sigchld_handler
Date: Thu, 27 Dec 2007 10:41:01 +0100
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.1 (gnu/linux)

Herbert Euler <address@hidden> writes:

> Could SIGCHLD possibly be delivered more than once to Emacs, so that
> `sigchld_handler' is invoked more than once?

A signal is blocked as long as its handler hasn't returned.  Thus that
can only happen when the signal is explicitly unblocked, or the function
is called manually.


Andreas Schwab, SuSE Labs, address@hidden
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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