Re: epoll and fork()

[Mark Mielke]

On Tue, Mar 02, 2004 at 12:31:20PM +0000, Ben wrote:
> Is there a defined behaviour for what happens when a process with an epoll
> fd forks?

You found it. :-)

> I've an app that inherits an epoll fd from its parent, and then
> unregisters some file descriptors from the epoll set. This seems to have
> the nasty side effect of unregistering the same file descriptors from the
> parent process as well. Surely this can't be right?

The epoll fd should probably be closed after the fork(), re-allocated,
and then initialized to contain the file descriptors that you want to
watch.

mark

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