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CVS commit: src/sys

Module Name:    src
Committed By:   christos
Date:           Sat Sep 24 00:05:39 UTC 2011

Modified Files:
        src/sys/kern: tty.c tty_subr.c
        src/sys/sys: tty.h ttycom.h

Log Message:
- Introduce a sysctl to control the default tty queue size kern.tty.qsize,
  which defaults to 1024 as before.
- Add two ioctls TIOC{G,S}QSIZE to read and adjust the queue size on
  individual ptys.

NB: ttys (and ptys) still silently (or beepingly (IMAXBEL)) drop
    characters if the queue size is exceeded. I.e. you can appear
    to succeed writing to the {p,t}ty, but not all characters will
    have made it if the queue overflows.  CVS:

To generate a diff of this commit:
cvs rdiff -u -r1.247 -r1.248 src/sys/kern/tty.c
cvs rdiff -u -r1.39 -r1.40 src/sys/kern/tty_subr.c
cvs rdiff -u -r1.89 -r1.90 src/sys/sys/tty.h
cvs rdiff -u -r1.18 -r1.19 src/sys/sys/ttycom.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

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