bug#43834: 27.1; [PATCH] Sentinels under X and command line

[dick <dick.r.chiang@gmail.com>]

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emacs -Q -l cl-lib \
  --eval "(let* (flag \
                 (proc (apply (function start-process) \"test\" nil \"sleep\" (list \"3\")))) \
            (set-process-sentinel proc (lambda (&rest _args) (setq flag t))) \
            (cl-assert (cl-loop repeat 10 \
                        until flag \
                        do (accept-process-output nil 0.5) \
                        finally return flag)) \
            (message \"good!\"))"


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From cd25ae2e9f8cf1d155084c125dae4058fccb6544 Mon Sep 17 00:00:00 2001
From: dickmao <none>
Date: Tue, 6 Oct 2020 14:21:03 -0400
Subject: [PATCH] Process sentinels need to work under X and commandline

This is also noted in
https://emacs.stackexchange.com/questions/60408/\
process-sentinels-dont-run-during-init-in-gui-emacs

* src/process.c (add_non_keyboard_read_fd): Make this a public function.
(add_process_read_fd): Fold old, static add_non_keyboard_read_fd guts
into here.
* src/xsmfns.c (ice_conn_watch_CB): Call add_non_keyboard_read_fd.
---
 src/process.c | 15 ++++++++-------
 src/process.h |  1 +
 src/xsmfns.c  |  2 +-
 3 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/src/process.c b/src/process.c
index 50c425077a..c7056e49da 100644
--- a/src/process.c
+++ b/src/process.c
@@ -469,8 +469,15 @@ add_read_fd (int fd, fd_callback func, void *data)
   fd_callback_info[fd].data = data;
 }
 
+void
+add_non_keyboard_read_fd (int fd, fd_callback func, void *data)
+{
+  add_read_fd(fd, func, data);
+  fd_callback_info[fd].flags &= ~KEYBOARD_FD;
+}
+
 static void
-add_non_keyboard_read_fd (int fd)
+add_process_read_fd (int fd)
 {
   eassert (fd >= 0 && fd < FD_SETSIZE);
   eassert (fd_callback_info[fd].func == NULL);
@@ -479,12 +486,6 @@ add_non_keyboard_read_fd (int fd)
   fd_callback_info[fd].flags |= FOR_READ;
   if (fd > max_desc)
     max_desc = fd;
-}
-
-static void
-add_process_read_fd (int fd)
-{
-  add_non_keyboard_read_fd (fd);
   fd_callback_info[fd].flags |= PROCESS_FD;
 }
 
diff --git a/src/process.h b/src/process.h
index a783a31cb8..5660270e8f 100644
--- a/src/process.h
+++ b/src/process.h
@@ -284,6 +284,7 @@ pset_gnutls_cred_type (struct Lisp_Process *p, Lisp_Object val)
 typedef void (*fd_callback) (int fd, void *data);
 
 extern void add_read_fd (int fd, fd_callback func, void *data);
+extern void add_non_keyboard_read_fd (int fd, fd_callback func, void *data);
 extern void delete_read_fd (int fd);
 extern void add_write_fd (int fd, fd_callback func, void *data);
 extern void delete_write_fd (int fd);
diff --git a/src/xsmfns.c b/src/xsmfns.c
index 203085e24f..2fd1177625 100644
--- a/src/xsmfns.c
+++ b/src/xsmfns.c
@@ -357,7 +357,7 @@ ice_conn_watch_CB (IceConn iceConn, IcePointer clientData,
     }
 
   ice_fd = IceConnectionNumber (iceConn);
-  add_read_fd (ice_fd, x_session_check_input, NULL);
+  add_non_keyboard_read_fd (ice_fd, x_session_check_input, NULL);
 }
 
 /* Create the client leader window.  */
-- 
2.26.2


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In GNU Emacs 27.1 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.22.30)
 of 2020-09-20 built on dick
Repository revision: dff02e85245dfbbeea7d57dc1a753a9ba24616d5
Repository branch: gnus-dev-27
Windowing system distributor 'The X.Org Foundation', version 11.0.11906000
System Description: Ubuntu 18.04.4 LTS

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