periods. The former specifies a period measured in seconds and the
latter specifies one measured in milliseconds. The two time periods
thus specified are added together, and @code{accept-process-output}
-returns after that much time, whether or not there has been any
+returns after that much time, even if there is no
subprocess output.
The argument @var{millisec} is obsolete (and should not be used),
speech synthesis.
The function @code{accept-process-output} returns non-@code{nil} if it
-did get some output, or @code{nil} if the timeout expired before output
+got output from @var{process}, or from any process if @var{process} is
+@code{nil}. It returns @code{nil} if the timeout expired before output
arrived.
@end defun
If non-@code{nil}, do opportunistic @acronym{STARTTLS} upgrades even if Emacs
doesn't have built-in @acronym{TLS} support.
+@item :warn-unless-encrypted @var{boolean}
+If non-@code{nil}, and @code{:return-value} is also non-@code{nil},
+Emacs will warn if the connection isn't encrypted. This is useful for
+protocols like @acronym{IMAP} and the like, where most users would
+expect the network traffic to be encrypted.
+
@item :client-certificate @var{list-or-t}
Either a list of the form @code{(@var{key-file} @var{cert-file})},
naming the certificate key file and certificate file itself, or
@end defun
+
@node Network Servers
@section Network Servers
@cindex network servers