diff options
| -rw-r--r-- | lispref/processes.texi | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/lispref/processes.texi b/lispref/processes.texi index f580a774ae7..16d7aa96c1d 100644 --- a/lispref/processes.texi +++ b/lispref/processes.texi @@ -1240,7 +1240,7 @@ or terminal input. Occasionally it is useful in a Lisp program to explicitly permit output to arrive at a specific point, or even to wait until output arrives from a process. -@defun accept-process-output &optional process seconds millisec +@defun accept-process-output &optional process seconds millisec just-this-one This function allows Emacs to read pending output from processes. The output is inserted in the associated buffers or given to their filter functions. If @var{process} is non-@code{nil} then this function does @@ -1263,6 +1263,15 @@ Not all operating systems support waiting periods other than multiples of a second; on those that do not, you get an error if you specify nonzero @var{millisec}. +@c Emacs 21.4 feature +If @var{process} is a process, and the argument @var{just-this-one} is +non-nil, only output from that process is handled, suspending output +from other processes until some output has been received from that +process or the timeout expires. If @var{just-this-one} is an integer, +also inhibit running timers. This feature is generally not +recommended, but may be necessary for specific applications, such as +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 arrived. @@ -1664,7 +1673,7 @@ meaning ask the system to allocate an unused port to listen on. @end defun @node Datagrams -@section Datagrams +@section Datagrams @cindex datagrams A datagram connection communicates with individual packets rather @@ -1951,7 +1960,7 @@ the port number. @example (featurep 'make-network-process '(@var{keyword} @var{value})) -@end example +@end example @noindent The result of the first form is @code{t} if it works to specify @@ -1977,7 +1986,7 @@ Non-@code{nil} if the system can select the port for a server. @example (featurep 'make-network-process '@var{keyword}) -@end example +@end example Here are some of the option @var{keyword}s you can test in this way. |