From 5651af6d63e449c3e463dcb4c00766c2cf230c30 Mon Sep 17 00:00:00 2001 From: "Richard M. Stallman" Date: Sat, 15 Aug 1998 05:53:00 +0000 Subject: [PATCH] (wait_reading_process_input): If a pty gives EIO, raise SIGCHLD just in case. --- src/process.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/src/process.c b/src/process.c index 2ca7525070..0e5ae9e3fe 100644 --- a/src/process.c +++ b/src/process.c @@ -2676,9 +2676,13 @@ wait_reading_process_input (time_limit, microsecs, read_kbd, do_display) Therefore, if we get an error reading and errno = EIO, just continue, because the child process has exited and should clean itself up soon (e.g. when we - get a SIGCHLD). */ + get a SIGCHLD). + + However, it has been known to happen that the SIGCHLD + got lost. So raise the signl again just in case. + It can't hurt. */ else if (nread == -1 && errno == EIO) - ; + kill (getpid (), SIGCHLD); #endif /* HAVE_PTYS */ /* If we can detect process termination, don't consider the process gone just because its pipe is closed. */ -- 2.20.1