setsockopt SO_RCVTIMEO question

[Marc Balmer <marc@msys.ch>]

Hi All

In a multithreaded program I use a socket for communication.  To detect 
failures I set a receive timeout with setsockopt(SO_RCVTIMEO).  Is this 
safe in a multithreaded program or is the timeout delivered using a 
signal?  Or are there now signals involved?

Thanks for clarification,
Marc