From a70d53714660efda646fb5bea89e71c749d605ef Mon Sep 17 00:00:00 2001 From: Nick Roberts Date: Sun, 30 Aug 2009 04:54:34 +0000 Subject: [PATCH] (wait_reading_process_output): Keep the descriptor when pty is used by a non-child process, e.g., in I/O buffer of GDB this allows inferior to be restarted. --- src/process.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/src/process.c b/src/process.c index 77ca2551e46..ed535170214 100644 --- a/src/process.c +++ b/src/process.c @@ -5150,11 +5150,16 @@ wait_reading_process_output (time_limit, microsecs, read_kbd, do_display, It can't hurt. */ else if (nread == -1 && errno == EIO) { - /* Clear the descriptor now, so we only raise the signal once. */ - FD_CLR (channel, &input_wait_mask); - FD_CLR (channel, &non_keyboard_wait_mask); + /* Clear the descriptor now, so we only raise the + signal once. Don't do this is `process' is only + a pty. */ + if (XPROCESS (proc)->pid != -2) + { + FD_CLR (channel, &input_wait_mask); + FD_CLR (channel, &non_keyboard_wait_mask); - kill (getpid (), SIGCHLD); + kill (getpid (), SIGCHLD); + } } #endif /* HAVE_PTYS */ /* If we can detect process termination, don't consider the process -- 2.39.2