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newlib-cygwin
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Johannes Schindelin 03ecfb9280 Be truthful about reporting whether readahead is available 
In 7346568 (Make requested console reports work, 2016-03-16), code was
introduced to report the current cursor position. It works by using a
pointer that either points to the next byte in the readahead buffer, or
to a NUL byte if the buffer is depleted, or the pointer is NULL.

These conditions are heeded in the fhandler_console::read() method, but
the condition that the pointer can point at the end of the readahead
buffer was not handled properly in the get_cons_readahead_valid()
method.

This poses a problem e.g. in Git for Windows (which uses a slightly
modified MSYS2 runtime which is in turn a slightly modified Cygwin
runtime) when vim queries the cursor position and immediately goes on to
read console input, erroneously thinking that the readahead buffer is
valid when it is already depleted instead. This condition results in an
apparent freeze that can be helped only by pressing keys repeatedly.

The full Git for Windows bug report is here:

	https://github.com/git-for-windows/git/issues/711

Let's just teach the get_cons_readahead_valid() method to handle a
depleted readahead buffer correctly.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
 		2016-04-05 19:20:10 +02:00
..
CVSChangeLogs.old winsup: Move all old CVS Changelogs into CVSChangeLogs.old dir 2016-03-19 13:59:52 +01:00
cygserver Rename without-mingw-progs to with-cross-bootstrap 2016-04-04 16:39:41 +02:00
cygwin Be truthful about reporting whether readahead is available 2016-04-05 19:20:10 +02:00
doc Add latest changes to release message 2016-04-05 10:35:05 +02:00
lsaauth Update autoconf for doc/lsaauth/utils 2016-04-01 14:04:41 +02:00
testsuite Replace AC_CANONICAL_SYSTEM with AC_CANONICAL_TARGET, fix AC_INIT usage 2016-03-30 14:09:19 +02:00
utils winsup/utils: port getconf to 64-bit 2016-04-04 10:25:39 -05:00
COPYING
…
CYGWIN_LICENSE
…
Makefile.common * Makefile.common (COMPILE.cc): Add -fno-use-cxa-atexit. 2014-08-07 16:19:09 +00:00
Makefile.in respect datarootdir 2016-03-20 12:36:40 +01:00
README
…
acinclude.m4 ChangeLog: 2012-11-23 13:22:47 +00:00
aclocal.m4 winsup/ChangeLog: 2013-11-07 00:19:52 +00:00
autogen.sh ChangeLog: 2012-11-23 13:22:47 +00:00
c++wrap ChangeLog: 2012-11-23 13:22:47 +00:00
ccwrap ccwrap: fix build with non-english locale set (v2) 2016-02-29 14:44:23 +01:00
config.guess ChangeLog: 2012-11-23 13:22:47 +00:00
config.sub ChangeLog: 2012-11-23 13:22:47 +00:00
configure Rename without-mingw-progs to with-cross-bootstrap 2016-04-04 16:39:41 +02:00
configure.ac Rename without-mingw-progs to with-cross-bootstrap 2016-04-04 16:39:41 +02:00
configure.cygwin winsup/ChangeLog: 2013-11-07 00:19:52 +00:00
install-sh ChangeLog: 2012-11-23 13:22:47 +00:00

README 

THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

Cygwin documentation is available on the net at http://cygwin.com
You might especially be interested in

http://cygwin.com/faq/faq.programming.html#faq.programming.building-cygwin