RE: send(), sendmsg(), sendto() not thread-safe

["David Schwartz" <davids@webmaster.com>]

> I discovered that in some cases, send(), sendmsg(), and sendto() are not
> thread-safe. Although the man page for these functions does not specify
> whether these functions are supposed to be thread-safe, my reading of the
> POSIX/SUSv3 specification tells me that they should be. I traced the
> problem to tcp_sendmsg(). I was very curious about this issue, so I wrote
> up a small page to describe in more detail my findings. You can 
> find it at:
> http://www.almaden.ibm.com/cs/people/marksmith/sendmsg.html .
> 
> Thanks,
> Mark A. Smith

	You are confusing thread-safety with atomicity.

	DS