winsup/cygwin ChangeLog errno.cc fhandler.cc f ...

[cgf at cygwin dot com]

CVSROOT:	/cvs/uberbaum
Module name:	winsup
Changes by:	cgf@sourceware.org	2011-03-09 16:47:45

Modified files:
	cygwin         : ChangeLog errno.cc fhandler.cc fhandler.h 
	                 fhandler_fifo.cc pipe.cc 

Log message:
	* errno.cc (errmap): Change mapping of NO_SYSTEM_RESOURCES to EFBIG.
	* fhandler.cc (MAX_OVERLAPPED_WRITE_LEN): New constant.
	(MIN_OVERLAPPED_WRITE_LEN): Ditto.
	(fhandler_base_overlapped::close): Accommodate change in arguments to
	wait_overlapped.
	(fhandler_base_overlapped::setup_overlapped): Add __stdcall and regparm
	modifiers.
	(fhandler_base_overlapped::destroy_overlapped): Ditto.
	(fhandler_base_overlapped::has_ongoing_io): Ditto.
	(fhandler_base_overlapped::wait_overlapped): Modify to return an enum returning
	various states.  Accept nonblocking parameter.
	(fhandler_base_overlapped::read_overlapped): Add __stdcall and regparm
	modifiers.  Rework to attempt to be smarter about reacting to states returned
	by wait_overlapped.
	(fhandler_base_overlapped::write_overlapped): Ditto.  Add fallback option for
	when wait_overlapped detects that smaller chunks must be written.
	(fhandler_base_overlapped::write_overlapped_fallback): Ditto.
	* fhandler.h (DEFAULT_PIPEBUFSIZE): Move definition here from pipe.cc.
	(fhandler_base::has_ongoing_io): Define with __stdcall and regparm modifiers.
	(fhandler_base_overlapped::wait_return): New enum.
	(fhandler_base_overlapped::max_atomic_write): New variable.
	(fhandler_base_overlapped:: wait_overlapped): Accommodate changes mentioned
	above to arguments and modifiers.
	(fhandler_base_overlapped::setup_overlapped): Ditto for modifiers.
	(fhandler_base_overlapped::read_overlapped): Ditto.
	(fhandler_base_overlapped::write_overlapped): Ditto.
	(fhandler_base_overlapped::destroy_overlapped): Ditto.
	(fhandler_base_overlapped::has_ongoing_io): Ditto.
	(fhandler_base_overlapped::fhandler_base_overlapped): Zero max_atomic_write.
	* fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Set max_atomic_write to the
	size of the DEFAULT_PIPEBUFSIZE.
	(fhandler_fifo::wait): Accommodate change in arguments to wait_overlapped.
	* pipe.cc (fhandler_pipe::fhandler_pipe): Set max_atomic_write to the size of
	the DEFAULT_PIPEBUFSIZE.
	(fhandler_pipe::create_selectable): Allow minimum size of DEFAULT_PIPEBUFSIZE.
	(DEFAULT_PIPEBUFSIZE): Delete here, move to fhandler.h.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/winsup/cygwin/ChangeLog.diff?cvsroot=uberbaum&r1=1.5186&r2=1.5187
http://sourceware.org/cgi-bin/cvsweb.cgi/winsup/cygwin/errno.cc.diff?cvsroot=uberbaum&r1=1.78&r2=1.79
http://sourceware.org/cgi-bin/cvsweb.cgi/winsup/cygwin/fhandler.cc.diff?cvsroot=uberbaum&r1=1.376&r2=1.377
http://sourceware.org/cgi-bin/cvsweb.cgi/winsup/cygwin/fhandler.h.diff?cvsroot=uberbaum&r1=1.410&r2=1.411
http://sourceware.org/cgi-bin/cvsweb.cgi/winsup/cygwin/fhandler_fifo.cc.diff?cvsroot=uberbaum&r1=1.43&r2=1.44
http://sourceware.org/cgi-bin/cvsweb.cgi/winsup/cygwin/pipe.cc.diff?cvsroot=uberbaum&r1=1.125&r2=1.126