Pseudo console support in test release TEST: Cygwin 3.1.0-0.3,
introduced by commit 169d65a5774acc76ce3f3feeedcbae7405aa9b57,
has some bugs which cause mismatch between state variables and
real pseudo console state regarding console attaching and r/w
pipe switching. This patch fixes this issue by redesigning the
state management.

v5:
Revise based on
https://cygwin.com/ml/cygwin-patches/2019-q3/msg00111.html

v4:
Small bug fix again.

v3:
Fix the first issue (Bad file descriptor) reported in
https://cygwin.com/ml/cygwin-patches/2019-q3/msg00104.html

v2:
Small bug fixed from v1.

Takashi Yano (1):
  Cygwin: pty: Fix state management for pseudo console support.

 winsup/cygwin/dtable.cc           |  38 +--
 winsup/cygwin/fhandler.h          |   6 +-
 winsup/cygwin/fhandler_console.cc |  25 +-
 winsup/cygwin/fhandler_tty.cc     | 385 ++++++++++++++++--------------
 winsup/cygwin/fork.cc             |  24 +-
 winsup/cygwin/spawn.cc            |  65 ++---
 6 files changed, 289 insertions(+), 254 deletions(-)

-- 
2.21.0

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