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(Accepting Output): Add just-this-one' arg to accept-process-output'.

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This commit is contained in:
Kim F. Storm 2004-08-17 22:35:13 +00:00
parent c438dc33d5
commit 410bcc3168
1 changed files with 13 additions and 4 deletions
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17
lispref/processes.texi
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@ -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.