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| author | Richard M. Stallman <rms@gnu.org> | 1997-06-23 02:39:44 +0000 |
|---|---|---|
| committer | Richard M. Stallman <rms@gnu.org> | 1997-06-23 02:39:44 +0000 |
| commit | 498545661afb521e84a57bcf7066186c357803c5 (patch) | |
| tree | d78cd0e1db2a9d20c7bea11f12bd8117c6628d3b /src | |
| parent | a5f32ce4b55241fb0dc9fb621bb134d018207251 (diff) | |
| download | emacs-498545661afb521e84a57bcf7066186c357803c5.tar.gz | |
(read_avail_input): Check for failure with EIO.
Diffstat (limited to 'src')
| -rw-r--r-- | src/keyboard.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/keyboard.c b/src/keyboard.c index 50f20d639fd..0303ab4fa65 100644 --- a/src/keyboard.c +++ b/src/keyboard.c @@ -4924,6 +4924,13 @@ read_avail_input (expected) #else nread = read (input_fd, cbuf, n_to_read); #endif + /* POSIX infers that processes which are not in the session leader's + process group won't get SIGHUP's at logout time. BSDI adheres to + this part standard and returns -1 from read(0) with errno==EIO + when the control tty is taken away. + Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ + if (nread == -1 && errno == EIO) + kill (0, SIGHUP); #if defined (AIX) && (! defined (aix386) && defined (_BSD)) /* The kernel sometimes fails to deliver SIGHUP for ptys. This looks incorrect, but it isn't, because _BSD causes |