winsup/cygwin ChangeLog fhandler.cc fhandler.h

[cgf@cygwin.com]

CVSROOT:	/cvs/uberbaum
Module name:	winsup
Changes by:	cgf@sourceware.org	2011-03-13 20:20:58

Modified files:
	cygwin         : ChangeLog fhandler.cc fhandler.h 

Log message:
	* fhandler.cc (fhandler_base_overlapped::wait_overlapped): Remove special
	treatment for ERROR_NO_SYSTEM_RESOURCES.  Cancel I/O and reset the overlapped
	handle on error.
	(fhandler_base_overlapped::write_overlapped): Limit writes to max_atomic_write
	bytes in blocking case.  Incorporate code from now-defunct
	write_overlapped_fallback.  Fix serious oversight where ptr was not advanced as
	buffer was written.
	(fhandler_base_overlapped::write_overlapped_fallback): Eliminate.
	* fhandler.h (fhandler_base_overlapped::write_overlapped_fallback): Ditto for
	declaration.
	(DEFAULT_PIPEBUFSIZE): Lower size to slightly less than documented worst-case
	atomic write size.
	(fhandler_overlapped::wait_return): Remove unused element.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/winsup/cygwin/ChangeLog.diff?cvsroot=uberbaum&r1=1.5189&r2=1.5190
http://sourceware.org/cgi-bin/cvsweb.cgi/winsup/cygwin/fhandler.cc.diff?cvsroot=uberbaum&r1=1.379&r2=1.380
http://sourceware.org/cgi-bin/cvsweb.cgi/winsup/cygwin/fhandler.h.diff?cvsroot=uberbaum&r1=1.411&r2=1.412