src/winsup/cygwin ChangeLog exceptions.cc misc ...

[corinna@cygwin.com]

CVSROOT:	/cvs/src
Module name:	src
Changes by:	corinna@sourceware.org	2013-06-06 15:29:41

Modified files:
	winsup/cygwin  : ChangeLog exceptions.cc miscfuncs.cc 

Log message:
	* exceptions.cc (_cygtls::handle_SIGCONT): Simplify loop waiting for
	sig_handle_tty_stop to wake up.  Make sure to unlock before calling
	yield to avoid starvation of sig_handle_tty_stop.  Add comments.
	* miscfuncs.cc (yield): Explain why yield should never be called under
	_cygtls::lock conditions.  Call SleepEx with 1ms timeout.  Explain why.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/winsup/cygwin/ChangeLog.diff?cvsroot=src&r1=1.6143&r2=1.6144
http://sourceware.org/cgi-bin/cvsweb.cgi/src/winsup/cygwin/exceptions.cc.diff?cvsroot=src&r1=1.419&r2=1.420
http://sourceware.org/cgi-bin/cvsweb.cgi/src/winsup/cygwin/miscfuncs.cc.diff?cvsroot=src&r1=1.94&r2=1.95