diff options
| author | bde <bde@FreeBSD.org> | 1995-07-21 17:47:08 +0000 |
|---|---|---|
| committer | bde <bde@FreeBSD.org> | 1995-07-21 17:47:08 +0000 |
| commit | daf18dea5d745b2eb3faa60b23438209a50706f3 (patch) | |
| tree | 151261b2a281da81a044ff5376f738eecbdda214 | |
| parent | b32a53127db8c848a8cd484fd8e83e0ee44366e3 (diff) | |
| download | FreeBSD-src-daf18dea5d745b2eb3faa60b23438209a50706f3.zip FreeBSD-src-daf18dea5d745b2eb3faa60b23438209a50706f3.tar.gz | |
Obtained from: partly from an ancient patch of mine via 1.1.5
Temporarily nuke TS_WOPEN. It was only used for the obscure MDMBUF
flow control option in the kernel and for informational purposes
in `pstat -t'. The latter worked properly only for ptys. In
general there may be multiple processes sleeping in open() and
multiple processes that successfully opened the tty by opening it
in O_NONBLOCK mode or during a window when CLOCAL was set. tty.c
doesn't have enough information to maintain the flag but always
cleared it in ttyopen().
TS_WOPEN should be restored someday just so that `pstat -t' can
display it (MDMBUF is already fixed). Fixing it requires counting
of processes sleeping in open() in too many serial drivers.
| -rw-r--r-- | sys/sys/tty.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/sys/tty.h b/sys/sys/tty.h index b82b0b3..25b81cd 100644 --- a/sys/sys/tty.h +++ b/sys/sys/tty.h @@ -36,7 +36,7 @@ * SUCH DAMAGE. * * @(#)tty.h 8.6 (Berkeley) 1/21/94 - * $Id: tty.h,v 1.18 1995/04/15 20:59:28 bde Exp $ + * $Id: tty.h,v 1.19 1995/07/16 10:22:37 joerg Exp $ */ #ifndef _SYS_TTY_H_ @@ -139,7 +139,9 @@ struct tty { #define TS_TBLOCK 0x00040 /* Further input blocked. */ #define TS_TIMEOUT 0x00080 /* Wait for output char processing. */ #define TS_TTSTOP 0x00100 /* Output paused. */ +#if 0 #define TS_WOPEN 0x00200 /* Open in progress. */ +#endif #define TS_XCLUDE 0x00400 /* Tty requires exclusivity. */ /* State for intra-line fancy editing work. */ |
