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author | Paul Eggert <eggert@cs.ucla.edu> | 2018-12-27 12:52:45 -0800 |
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committer | Paul Eggert <eggert@cs.ucla.edu> | 2018-12-27 12:53:54 -0800 |
commit | c9fdd1b4965ebd02aa408f878320c4955f5e2cc7 (patch) | |
tree | 377aa59b8ff670a6fb3b08a63b88235961f413ac /src | |
parent | 9578c2aa2201642e6846b0d09c14e72bc3225d09 (diff) | |
download | emacs-c9fdd1b4965ebd02aa408f878320c4955f5e2cc7.tar.gz |
Improve accept-process-process doc
* doc/lispref/processes.texi (Accepting Output):
* src/process.c (Faccept_process_output):
Document that (accept-process-output P) can return non-nil
even after P has exited, and that it can return nil even if P
is still running (Bug#33839).
Diffstat (limited to 'src')
-rw-r--r-- | src/process.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/process.c b/src/process.c index e306b2ae9ec..4dafee8cbed 100644 --- a/src/process.c +++ b/src/process.c @@ -4581,8 +4581,8 @@ DEFUN ("accept-process-output", Faccept_process_output, Saccept_process_output, 0, 4, 0, doc: /* Allow any pending output from subprocesses to be read by Emacs. It is given to their filter functions. -Optional argument PROCESS means do not return until output has been -received from PROCESS. +Optional argument PROCESS means to return only after output is +received from PROCESS or PROCESS closes the connection. Optional second argument SECONDS and third argument MILLISEC specify a timeout; return after that much time even if there is @@ -4594,7 +4594,8 @@ If optional fourth argument JUST-THIS-ONE is non-nil, accept output from PROCESS only, suspending reading output from other processes. If JUST-THIS-ONE is an integer, don't run any timers either. Return non-nil if we received any output from PROCESS (or, if PROCESS -is nil, from any process) before the timeout expired. */) +is nil, from any process) before the timeout expired or the +corresponding connection was closed. */) (Lisp_Object process, Lisp_Object seconds, Lisp_Object millisec, Lisp_Object just_this_one) { |