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src/winsup/cygwin ChangeLog autoload.cc dtable ...


CVSROOT:	/cvs/src
Module name:	src
Changes by:	corinna@sourceware.org	2009-11-17 10:43:02

Modified files:
	winsup/cygwin  : ChangeLog autoload.cc dtable.cc dtable.h 
	                 fhandler.h fhandler_socket.cc fork.cc net.cc 
	                 spawn.cc 

Log message:
	Reintegrate socket duplication via WSADuplicateSocket/WSASocket.
	* autoload.cc (WSADuplicateSocketW): Define.
	(WSASocketW): Define.
	* dtable.cc (dtable::release): Call dec_need_fixup_before if necessary.
	(dtable::fixup_before_fork): New function.
	(dtable::fixup_before_exec): New function.
	* dtable.h (class dtable): Add member cnt_need_fixup_before.  Add
	declarations for above new functions.
	(dtable::dec_need_fixup_before): New inline method.
	(dtable::inc_need_fixup_before): New inline method.
	(dtable::need_fixup_before): New inline method.
	* fhandler.h (fhandler_base::fixup_before_fork_exec): New virtual
	method.
	(fhandler_base::need_fixup_before): New virtual method.
	(class fhandler_socket): Add member prot_info_ptr.
	(fhandler_socket::init_fixup_before): Declare.
	(fhandler_socket::need_fixup_before): New inline method.
	(fhandler_socket::fixup_before_fork_exec): Declare.
	(fhandler_socket::fixup_after_exec): Declare.
	* fhandler_socket.cc (fhandler_socket::fhandler_socket): Initialize
	prot_info_ptr to NULL.
	(fhandler_socket::~fhandler_socket): Free prot_info_ptr conditionally.
	(fhandler_socket::init_fixup_before): New method.
	(fhandler_socket::fixup_before_fork_exec): Ditto.
	(fhandler_socket::fixup_after_fork): Use WSASocketW to duplicate
	socket if necessary.
	(fhandler_socket::fixup_after_exec): New method.
	(fhandler_socket::dup): Use fixup_before_fork_exec/fixup_after_fork
	to duplicate socket if necessary.
	* fork.cc (frok::parent): Start child suspended if some fhandler
	needs fixup before fork.  If so, call dtable::fixup_before_fork after
	CreateProcess and resume child.
	* net.cc (fdsock): Try to find out if socket needs fixup before and
	initialize socket accordingly.  Add HUGE comment to explain what happens
	and why.
	* spawn.cc (spawn_guts): Start child suspended if some fhandler needs
	fixup before exec.  If so, call dtable::fixup_before_exec after
	CreateProcess.

Patches:
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/ChangeLog.diff?cvsroot=src&r1=1.4720&r2=1.4721
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/autoload.cc.diff?cvsroot=src&r1=1.165&r2=1.166
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/dtable.cc.diff?cvsroot=src&r1=1.207&r2=1.208
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/dtable.h.diff?cvsroot=src&r1=1.49&r2=1.50
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/fhandler.h.diff?cvsroot=src&r1=1.383&r2=1.384
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/fhandler_socket.cc.diff?cvsroot=src&r1=1.250&r2=1.251
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/fork.cc.diff?cvsroot=src&r1=1.208&r2=1.209
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/net.cc.diff?cvsroot=src&r1=1.265&r2=1.266
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/spawn.cc.diff?cvsroot=src&r1=1.284&r2=1.285


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