CoCalc -- epolltable-internal.h

GitHub Repository: freebsd/freebsd-src
Path: blob/main/contrib/libevent/epolltable-internal.h
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/*
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 * Copyright (c) 2000-2007 Niels Provos <[email protected]>
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 * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. The name of the author may not be used to endorse or promote products
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 *    derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#ifndef EPOLLTABLE_INTERNAL_H_INCLUDED_
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#define EPOLLTABLE_INTERNAL_H_INCLUDED_
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/*
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  Here are the values we're masking off to decide what operations to do.
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  Note that since EV_READ|EV_WRITE.
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  Note also that this table is a little sparse, since ADD+DEL is
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  nonsensical ("xxx" in the list below.)
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  Note also that we are shifting old_events by only 5 bits, since
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  EV_READ is 2 and EV_WRITE is 4.
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  The table was auto-generated with a python script, according to this
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  pseudocode:[*0]
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      If either the read or the write change is add+del:
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	 This is impossible; Set op==-1, events=0.
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      Else, if either the read or the write change is add:
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	 Set events to 0.
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	 If the read change is add, or
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	    (the read change is not del, and ev_read is in old_events):
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	       Add EPOLLIN to events.
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	 If the write change is add, or
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	    (the write change is not del, and ev_write is in old_events):
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	       Add EPOLLOUT to events.
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	 If old_events is set:
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	       Set op to EPOLL_CTL_MOD [*1,*2]
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	Else:
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	       Set op to EPOLL_CTL_ADD [*3]
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      Else, if the read or the write change is del:
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	 Set op to EPOLL_CTL_DEL.
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	 If the read change is del:
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	     If the write change is del:
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		 Set events to EPOLLIN|EPOLLOUT
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	     Else if ev_write is in old_events:
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		 Set events to EPOLLOUT
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		Set op to EPOLL_CTL_MOD
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	     Else
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		 Set events to EPOLLIN
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	 Else:
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	     {The write change is del.}
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	    If ev_read is in old_events:
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		 Set events to EPOLLIN
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		Set op to EPOLL_CTL_MOD
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	    Else:
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		Set the events to EPOLLOUT
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      Else:
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	   There is no read or write change; set op to 0 and events to 0.
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      The logic is a little tricky, since we had no events set on the fd before,
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      we need to set op="ADD" and set events=the events we want to add.	 If we
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      had any events set on the fd before, and we want any events to remain on
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      the fd, we need to say op="MOD" and set events=the events we want to
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      remain.  But if we want to delete the last event, we say op="DEL" and
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      set events=(any non-null pointer).
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  [*0] Actually, the Python script has gotten a bit more complicated, to
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       support EPOLLRDHUP.
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  [*1] This MOD is only a guess.  MOD might fail with ENOENT if the file was
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       closed and a new file was opened with the same fd.  If so, we'll retry
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       with ADD.
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  [*2] We can't replace this with a no-op even if old_events is the same as
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       the new events: if the file was closed and reopened, we need to retry
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       with an ADD.  (We do a MOD in this case since "no change" is more
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       common than "close and reopen", so we'll usually wind up doing 1
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       syscalls instead of 2.)
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  [*3] This ADD is only a guess.  There is a fun Linux kernel issue where if
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       you have two fds for the same file (via dup) and you ADD one to an
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       epfd, then close it, then re-create it with the same fd (via dup2 or an
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       unlucky dup), then try to ADD it again, you'll get an EEXIST, since the
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       struct epitem is not actually removed from the struct eventpoll until
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       the file itself is closed.
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  EV_CHANGE_ADD==1
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  EV_CHANGE_DEL==2
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  EV_READ      ==2
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  EV_WRITE     ==4
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  EV_CLOSED    ==0x80
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  Bit 0: close change is add
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  Bit 1: close change is del
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  Bit 2: read change is add
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  Bit 3: read change is del
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  Bit 4: write change is add
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  Bit 5: write change is del
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  Bit 6: old events had EV_READ
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  Bit 7: old events had EV_WRITE
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  Bit 8: old events had EV_CLOSED
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*/
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#define EPOLL_OP_TABLE_INDEX(c) \
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	(   (((c)->close_change&(EV_CHANGE_ADD|EV_CHANGE_DEL))) |		\
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	    (((c)->read_change&(EV_CHANGE_ADD|EV_CHANGE_DEL)) << 2) |	\
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	    (((c)->write_change&(EV_CHANGE_ADD|EV_CHANGE_DEL)) << 4) |	\
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	    (((c)->old_events&(EV_READ|EV_WRITE)) << 5) |		\
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	    (((c)->old_events&(EV_CLOSED)) << 1)				\
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	    )
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#if EV_READ != 2 || EV_WRITE != 4 || EV_CLOSED != 0x80 || EV_CHANGE_ADD != 1 || EV_CHANGE_DEL != 2
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#error "Libevent's internals changed!  Regenerate the op_table in epolltable-internal.h"
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#endif
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static const struct operation {
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	int events;
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	int op;
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} epoll_op_table[] = {
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	/* old=  0, write:  0, read:  0, close:  0 */
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	{ 0, 0 },
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	/* old=  0, write:  0, read:  0, close:add */
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	{ EPOLLRDHUP, EPOLL_CTL_ADD },
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	/* old=  0, write:  0, read:  0, close:del */
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	{ EPOLLRDHUP, EPOLL_CTL_DEL },
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	/* old=  0, write:  0, read:  0, close:xxx */
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	{ 0, 255 },
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	/* old=  0, write:  0, read:add, close:  0 */
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	{ EPOLLIN, EPOLL_CTL_ADD },
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	/* old=  0, write:  0, read:add, close:add */
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	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_ADD },
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	/* old=  0, write:  0, read:add, close:del */
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	{ EPOLLIN, EPOLL_CTL_ADD },
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	/* old=  0, write:  0, read:add, close:xxx */
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	{ 0, 255 },
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	/* old=  0, write:  0, read:del, close:  0 */
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	{ EPOLLIN, EPOLL_CTL_DEL },
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	/* old=  0, write:  0, read:del, close:add */
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	{ EPOLLRDHUP, EPOLL_CTL_ADD },
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	/* old=  0, write:  0, read:del, close:del */
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	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_DEL },
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	/* old=  0, write:  0, read:del, close:xxx */
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	{ 0, 255 },
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	/* old=  0, write:  0, read:xxx, close:  0 */
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	{ 0, 255 },
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	/* old=  0, write:  0, read:xxx, close:add */
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	{ 0, 255 },
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	/* old=  0, write:  0, read:xxx, close:del */
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	{ 0, 255 },
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	/* old=  0, write:  0, read:xxx, close:xxx */
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	{ 0, 255 },
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	/* old=  0, write:add, read:  0, close:  0 */
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	{ EPOLLOUT, EPOLL_CTL_ADD },
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	/* old=  0, write:add, read:  0, close:add */
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	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_ADD },
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	/* old=  0, write:add, read:  0, close:del */
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	{ EPOLLOUT, EPOLL_CTL_ADD },
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	/* old=  0, write:add, read:  0, close:xxx */
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	{ 0, 255 },
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	/* old=  0, write:add, read:add, close:  0 */
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	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_ADD },
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	/* old=  0, write:add, read:add, close:add */
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	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_ADD },
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	/* old=  0, write:add, read:add, close:del */
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	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_ADD },
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	/* old=  0, write:add, read:add, close:xxx */
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	{ 0, 255 },
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	/* old=  0, write:add, read:del, close:  0 */
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	{ EPOLLOUT, EPOLL_CTL_ADD },
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	/* old=  0, write:add, read:del, close:add */
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	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_ADD },
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	/* old=  0, write:add, read:del, close:del */
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	{ EPOLLOUT, EPOLL_CTL_ADD },
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	/* old=  0, write:add, read:del, close:xxx */
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	{ 0, 255 },
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	/* old=  0, write:add, read:xxx, close:  0 */
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	{ 0, 255 },
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	/* old=  0, write:add, read:xxx, close:add */
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	{ 0, 255 },
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	/* old=  0, write:add, read:xxx, close:del */
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	{ 0, 255 },
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	/* old=  0, write:add, read:xxx, close:xxx */
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	{ 0, 255 },
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	/* old=  0, write:del, read:  0, close:  0 */
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	{ EPOLLOUT, EPOLL_CTL_DEL },
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	/* old=  0, write:del, read:  0, close:add */
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	{ EPOLLRDHUP, EPOLL_CTL_ADD },
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	/* old=  0, write:del, read:  0, close:del */
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	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL },
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	/* old=  0, write:del, read:  0, close:xxx */
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	{ 0, 255 },
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	/* old=  0, write:del, read:add, close:  0 */
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	{ EPOLLIN, EPOLL_CTL_ADD },
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	/* old=  0, write:del, read:add, close:add */
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	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_ADD },
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	/* old=  0, write:del, read:add, close:del */
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	{ EPOLLIN, EPOLL_CTL_ADD },
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	/* old=  0, write:del, read:add, close:xxx */
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	{ 0, 255 },
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	/* old=  0, write:del, read:del, close:  0 */
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	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_DEL },
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	/* old=  0, write:del, read:del, close:add */
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	{ EPOLLRDHUP, EPOLL_CTL_ADD },
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	/* old=  0, write:del, read:del, close:del */
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	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL },
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	/* old=  0, write:del, read:del, close:xxx */
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	{ 0, 255 },
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	/* old=  0, write:del, read:xxx, close:  0 */
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	{ 0, 255 },
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	/* old=  0, write:del, read:xxx, close:add */
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	{ 0, 255 },
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	/* old=  0, write:del, read:xxx, close:del */
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	{ 0, 255 },
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	/* old=  0, write:del, read:xxx, close:xxx */
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	{ 0, 255 },
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	/* old=  0, write:xxx, read:  0, close:  0 */
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	{ 0, 255 },
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	/* old=  0, write:xxx, read:  0, close:add */
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	{ 0, 255 },
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	/* old=  0, write:xxx, read:  0, close:del */
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	{ 0, 255 },
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	/* old=  0, write:xxx, read:  0, close:xxx */
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	{ 0, 255 },
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	/* old=  0, write:xxx, read:add, close:  0 */
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	{ 0, 255 },
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	/* old=  0, write:xxx, read:add, close:add */
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	{ 0, 255 },
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	/* old=  0, write:xxx, read:add, close:del */
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	{ 0, 255 },
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	/* old=  0, write:xxx, read:add, close:xxx */
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	{ 0, 255 },
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	/* old=  0, write:xxx, read:del, close:  0 */
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	{ 0, 255 },
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	/* old=  0, write:xxx, read:del, close:add */
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	{ 0, 255 },
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	/* old=  0, write:xxx, read:del, close:del */
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	{ 0, 255 },
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	/* old=  0, write:xxx, read:del, close:xxx */
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	{ 0, 255 },
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	/* old=  0, write:xxx, read:xxx, close:  0 */
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	{ 0, 255 },
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	/* old=  0, write:xxx, read:xxx, close:add */
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	{ 0, 255 },
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	/* old=  0, write:xxx, read:xxx, close:del */
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	{ 0, 255 },
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	/* old=  0, write:xxx, read:xxx, close:xxx */
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	{ 0, 255 },
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	/* old=  r, write:  0, read:  0, close:  0 */
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	{ 0, 0 },
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	/* old=  r, write:  0, read:  0, close:add */
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	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
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	/* old=  r, write:  0, read:  0, close:del */
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	{ EPOLLIN, EPOLL_CTL_MOD },
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	/* old=  r, write:  0, read:  0, close:xxx */
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	{ 0, 255 },
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	/* old=  r, write:  0, read:add, close:  0 */
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	{ EPOLLIN, EPOLL_CTL_MOD },
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	/* old=  r, write:  0, read:add, close:add */
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	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
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	/* old=  r, write:  0, read:add, close:del */
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	{ EPOLLIN, EPOLL_CTL_MOD },
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	/* old=  r, write:  0, read:add, close:xxx */
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	{ 0, 255 },
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	/* old=  r, write:  0, read:del, close:  0 */
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	{ EPOLLIN, EPOLL_CTL_DEL },
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	/* old=  r, write:  0, read:del, close:add */
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	{ EPOLLRDHUP, EPOLL_CTL_MOD },
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	/* old=  r, write:  0, read:del, close:del */
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	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_DEL },
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	/* old=  r, write:  0, read:del, close:xxx */
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	{ 0, 255 },
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	/* old=  r, write:  0, read:xxx, close:  0 */
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	{ 0, 255 },
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	/* old=  r, write:  0, read:xxx, close:add */
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	{ 0, 255 },
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	/* old=  r, write:  0, read:xxx, close:del */
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	{ 0, 255 },
298
	/* old=  r, write:  0, read:xxx, close:xxx */
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	{ 0, 255 },
300
	/* old=  r, write:add, read:  0, close:  0 */
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	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
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	/* old=  r, write:add, read:  0, close:add */
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	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
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	/* old=  r, write:add, read:  0, close:del */
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	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
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	/* old=  r, write:add, read:  0, close:xxx */
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	{ 0, 255 },
308
	/* old=  r, write:add, read:add, close:  0 */
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	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
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	/* old=  r, write:add, read:add, close:add */
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	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
312
	/* old=  r, write:add, read:add, close:del */
313
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
314
	/* old=  r, write:add, read:add, close:xxx */
315
	{ 0, 255 },
316
	/* old=  r, write:add, read:del, close:  0 */
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	{ EPOLLOUT, EPOLL_CTL_MOD },
318
	/* old=  r, write:add, read:del, close:add */
319
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
320
	/* old=  r, write:add, read:del, close:del */
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	{ EPOLLOUT, EPOLL_CTL_MOD },
322
	/* old=  r, write:add, read:del, close:xxx */
323
	{ 0, 255 },
324
	/* old=  r, write:add, read:xxx, close:  0 */
325
	{ 0, 255 },
326
	/* old=  r, write:add, read:xxx, close:add */
327
	{ 0, 255 },
328
	/* old=  r, write:add, read:xxx, close:del */
329
	{ 0, 255 },
330
	/* old=  r, write:add, read:xxx, close:xxx */
331
	{ 0, 255 },
332
	/* old=  r, write:del, read:  0, close:  0 */
333
	{ EPOLLIN, EPOLL_CTL_MOD },
334
	/* old=  r, write:del, read:  0, close:add */
335
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
336
	/* old=  r, write:del, read:  0, close:del */
337
	{ EPOLLIN, EPOLL_CTL_MOD },
338
	/* old=  r, write:del, read:  0, close:xxx */
339
	{ 0, 255 },
340
	/* old=  r, write:del, read:add, close:  0 */
341
	{ EPOLLIN, EPOLL_CTL_MOD },
342
	/* old=  r, write:del, read:add, close:add */
343
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
344
	/* old=  r, write:del, read:add, close:del */
345
	{ EPOLLIN, EPOLL_CTL_MOD },
346
	/* old=  r, write:del, read:add, close:xxx */
347
	{ 0, 255 },
348
	/* old=  r, write:del, read:del, close:  0 */
349
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_DEL },
350
	/* old=  r, write:del, read:del, close:add */
351
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
352
	/* old=  r, write:del, read:del, close:del */
353
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL },
354
	/* old=  r, write:del, read:del, close:xxx */
355
	{ 0, 255 },
356
	/* old=  r, write:del, read:xxx, close:  0 */
357
	{ 0, 255 },
358
	/* old=  r, write:del, read:xxx, close:add */
359
	{ 0, 255 },
360
	/* old=  r, write:del, read:xxx, close:del */
361
	{ 0, 255 },
362
	/* old=  r, write:del, read:xxx, close:xxx */
363
	{ 0, 255 },
364
	/* old=  r, write:xxx, read:  0, close:  0 */
365
	{ 0, 255 },
366
	/* old=  r, write:xxx, read:  0, close:add */
367
	{ 0, 255 },
368
	/* old=  r, write:xxx, read:  0, close:del */
369
	{ 0, 255 },
370
	/* old=  r, write:xxx, read:  0, close:xxx */
371
	{ 0, 255 },
372
	/* old=  r, write:xxx, read:add, close:  0 */
373
	{ 0, 255 },
374
	/* old=  r, write:xxx, read:add, close:add */
375
	{ 0, 255 },
376
	/* old=  r, write:xxx, read:add, close:del */
377
	{ 0, 255 },
378
	/* old=  r, write:xxx, read:add, close:xxx */
379
	{ 0, 255 },
380
	/* old=  r, write:xxx, read:del, close:  0 */
381
	{ 0, 255 },
382
	/* old=  r, write:xxx, read:del, close:add */
383
	{ 0, 255 },
384
	/* old=  r, write:xxx, read:del, close:del */
385
	{ 0, 255 },
386
	/* old=  r, write:xxx, read:del, close:xxx */
387
	{ 0, 255 },
388
	/* old=  r, write:xxx, read:xxx, close:  0 */
389
	{ 0, 255 },
390
	/* old=  r, write:xxx, read:xxx, close:add */
391
	{ 0, 255 },
392
	/* old=  r, write:xxx, read:xxx, close:del */
393
	{ 0, 255 },
394
	/* old=  r, write:xxx, read:xxx, close:xxx */
395
	{ 0, 255 },
396
	/* old=  w, write:  0, read:  0, close:  0 */
397
	{ 0, 0 },
398
	/* old=  w, write:  0, read:  0, close:add */
399
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
400
	/* old=  w, write:  0, read:  0, close:del */
401
	{ EPOLLOUT, EPOLL_CTL_MOD },
402
	/* old=  w, write:  0, read:  0, close:xxx */
403
	{ 0, 255 },
404
	/* old=  w, write:  0, read:add, close:  0 */
405
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
406
	/* old=  w, write:  0, read:add, close:add */
407
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
408
	/* old=  w, write:  0, read:add, close:del */
409
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
410
	/* old=  w, write:  0, read:add, close:xxx */
411
	{ 0, 255 },
412
	/* old=  w, write:  0, read:del, close:  0 */
413
	{ EPOLLOUT, EPOLL_CTL_MOD },
414
	/* old=  w, write:  0, read:del, close:add */
415
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
416
	/* old=  w, write:  0, read:del, close:del */
417
	{ EPOLLOUT, EPOLL_CTL_MOD },
418
	/* old=  w, write:  0, read:del, close:xxx */
419
	{ 0, 255 },
420
	/* old=  w, write:  0, read:xxx, close:  0 */
421
	{ 0, 255 },
422
	/* old=  w, write:  0, read:xxx, close:add */
423
	{ 0, 255 },
424
	/* old=  w, write:  0, read:xxx, close:del */
425
	{ 0, 255 },
426
	/* old=  w, write:  0, read:xxx, close:xxx */
427
	{ 0, 255 },
428
	/* old=  w, write:add, read:  0, close:  0 */
429
	{ EPOLLOUT, EPOLL_CTL_MOD },
430
	/* old=  w, write:add, read:  0, close:add */
431
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
432
	/* old=  w, write:add, read:  0, close:del */
433
	{ EPOLLOUT, EPOLL_CTL_MOD },
434
	/* old=  w, write:add, read:  0, close:xxx */
435
	{ 0, 255 },
436
	/* old=  w, write:add, read:add, close:  0 */
437
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
438
	/* old=  w, write:add, read:add, close:add */
439
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
440
	/* old=  w, write:add, read:add, close:del */
441
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
442
	/* old=  w, write:add, read:add, close:xxx */
443
	{ 0, 255 },
444
	/* old=  w, write:add, read:del, close:  0 */
445
	{ EPOLLOUT, EPOLL_CTL_MOD },
446
	/* old=  w, write:add, read:del, close:add */
447
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
448
	/* old=  w, write:add, read:del, close:del */
449
	{ EPOLLOUT, EPOLL_CTL_MOD },
450
	/* old=  w, write:add, read:del, close:xxx */
451
	{ 0, 255 },
452
	/* old=  w, write:add, read:xxx, close:  0 */
453
	{ 0, 255 },
454
	/* old=  w, write:add, read:xxx, close:add */
455
	{ 0, 255 },
456
	/* old=  w, write:add, read:xxx, close:del */
457
	{ 0, 255 },
458
	/* old=  w, write:add, read:xxx, close:xxx */
459
	{ 0, 255 },
460
	/* old=  w, write:del, read:  0, close:  0 */
461
	{ EPOLLOUT, EPOLL_CTL_DEL },
462
	/* old=  w, write:del, read:  0, close:add */
463
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
464
	/* old=  w, write:del, read:  0, close:del */
465
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL },
466
	/* old=  w, write:del, read:  0, close:xxx */
467
	{ 0, 255 },
468
	/* old=  w, write:del, read:add, close:  0 */
469
	{ EPOLLIN, EPOLL_CTL_MOD },
470
	/* old=  w, write:del, read:add, close:add */
471
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
472
	/* old=  w, write:del, read:add, close:del */
473
	{ EPOLLIN, EPOLL_CTL_MOD },
474
	/* old=  w, write:del, read:add, close:xxx */
475
	{ 0, 255 },
476
	/* old=  w, write:del, read:del, close:  0 */
477
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_DEL },
478
	/* old=  w, write:del, read:del, close:add */
479
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
480
	/* old=  w, write:del, read:del, close:del */
481
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL },
482
	/* old=  w, write:del, read:del, close:xxx */
483
	{ 0, 255 },
484
	/* old=  w, write:del, read:xxx, close:  0 */
485
	{ 0, 255 },
486
	/* old=  w, write:del, read:xxx, close:add */
487
	{ 0, 255 },
488
	/* old=  w, write:del, read:xxx, close:del */
489
	{ 0, 255 },
490
	/* old=  w, write:del, read:xxx, close:xxx */
491
	{ 0, 255 },
492
	/* old=  w, write:xxx, read:  0, close:  0 */
493
	{ 0, 255 },
494
	/* old=  w, write:xxx, read:  0, close:add */
495
	{ 0, 255 },
496
	/* old=  w, write:xxx, read:  0, close:del */
497
	{ 0, 255 },
498
	/* old=  w, write:xxx, read:  0, close:xxx */
499
	{ 0, 255 },
500
	/* old=  w, write:xxx, read:add, close:  0 */
501
	{ 0, 255 },
502
	/* old=  w, write:xxx, read:add, close:add */
503
	{ 0, 255 },
504
	/* old=  w, write:xxx, read:add, close:del */
505
	{ 0, 255 },
506
	/* old=  w, write:xxx, read:add, close:xxx */
507
	{ 0, 255 },
508
	/* old=  w, write:xxx, read:del, close:  0 */
509
	{ 0, 255 },
510
	/* old=  w, write:xxx, read:del, close:add */
511
	{ 0, 255 },
512
	/* old=  w, write:xxx, read:del, close:del */
513
	{ 0, 255 },
514
	/* old=  w, write:xxx, read:del, close:xxx */
515
	{ 0, 255 },
516
	/* old=  w, write:xxx, read:xxx, close:  0 */
517
	{ 0, 255 },
518
	/* old=  w, write:xxx, read:xxx, close:add */
519
	{ 0, 255 },
520
	/* old=  w, write:xxx, read:xxx, close:del */
521
	{ 0, 255 },
522
	/* old=  w, write:xxx, read:xxx, close:xxx */
523
	{ 0, 255 },
524
	/* old= rw, write:  0, read:  0, close:  0 */
525
	{ 0, 0 },
526
	/* old= rw, write:  0, read:  0, close:add */
527
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
528
	/* old= rw, write:  0, read:  0, close:del */
529
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
530
	/* old= rw, write:  0, read:  0, close:xxx */
531
	{ 0, 255 },
532
	/* old= rw, write:  0, read:add, close:  0 */
533
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
534
	/* old= rw, write:  0, read:add, close:add */
535
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
536
	/* old= rw, write:  0, read:add, close:del */
537
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
538
	/* old= rw, write:  0, read:add, close:xxx */
539
	{ 0, 255 },
540
	/* old= rw, write:  0, read:del, close:  0 */
541
	{ EPOLLOUT, EPOLL_CTL_MOD },
542
	/* old= rw, write:  0, read:del, close:add */
543
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
544
	/* old= rw, write:  0, read:del, close:del */
545
	{ EPOLLOUT, EPOLL_CTL_MOD },
546
	/* old= rw, write:  0, read:del, close:xxx */
547
	{ 0, 255 },
548
	/* old= rw, write:  0, read:xxx, close:  0 */
549
	{ 0, 255 },
550
	/* old= rw, write:  0, read:xxx, close:add */
551
	{ 0, 255 },
552
	/* old= rw, write:  0, read:xxx, close:del */
553
	{ 0, 255 },
554
	/* old= rw, write:  0, read:xxx, close:xxx */
555
	{ 0, 255 },
556
	/* old= rw, write:add, read:  0, close:  0 */
557
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
558
	/* old= rw, write:add, read:  0, close:add */
559
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
560
	/* old= rw, write:add, read:  0, close:del */
561
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
562
	/* old= rw, write:add, read:  0, close:xxx */
563
	{ 0, 255 },
564
	/* old= rw, write:add, read:add, close:  0 */
565
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
566
	/* old= rw, write:add, read:add, close:add */
567
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
568
	/* old= rw, write:add, read:add, close:del */
569
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
570
	/* old= rw, write:add, read:add, close:xxx */
571
	{ 0, 255 },
572
	/* old= rw, write:add, read:del, close:  0 */
573
	{ EPOLLOUT, EPOLL_CTL_MOD },
574
	/* old= rw, write:add, read:del, close:add */
575
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
576
	/* old= rw, write:add, read:del, close:del */
577
	{ EPOLLOUT, EPOLL_CTL_MOD },
578
	/* old= rw, write:add, read:del, close:xxx */
579
	{ 0, 255 },
580
	/* old= rw, write:add, read:xxx, close:  0 */
581
	{ 0, 255 },
582
	/* old= rw, write:add, read:xxx, close:add */
583
	{ 0, 255 },
584
	/* old= rw, write:add, read:xxx, close:del */
585
	{ 0, 255 },
586
	/* old= rw, write:add, read:xxx, close:xxx */
587
	{ 0, 255 },
588
	/* old= rw, write:del, read:  0, close:  0 */
589
	{ EPOLLIN, EPOLL_CTL_MOD },
590
	/* old= rw, write:del, read:  0, close:add */
591
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
592
	/* old= rw, write:del, read:  0, close:del */
593
	{ EPOLLIN, EPOLL_CTL_MOD },
594
	/* old= rw, write:del, read:  0, close:xxx */
595
	{ 0, 255 },
596
	/* old= rw, write:del, read:add, close:  0 */
597
	{ EPOLLIN, EPOLL_CTL_MOD },
598
	/* old= rw, write:del, read:add, close:add */
599
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
600
	/* old= rw, write:del, read:add, close:del */
601
	{ EPOLLIN, EPOLL_CTL_MOD },
602
	/* old= rw, write:del, read:add, close:xxx */
603
	{ 0, 255 },
604
	/* old= rw, write:del, read:del, close:  0 */
605
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_DEL },
606
	/* old= rw, write:del, read:del, close:add */
607
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
608
	/* old= rw, write:del, read:del, close:del */
609
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL },
610
	/* old= rw, write:del, read:del, close:xxx */
611
	{ 0, 255 },
612
	/* old= rw, write:del, read:xxx, close:  0 */
613
	{ 0, 255 },
614
	/* old= rw, write:del, read:xxx, close:add */
615
	{ 0, 255 },
616
	/* old= rw, write:del, read:xxx, close:del */
617
	{ 0, 255 },
618
	/* old= rw, write:del, read:xxx, close:xxx */
619
	{ 0, 255 },
620
	/* old= rw, write:xxx, read:  0, close:  0 */
621
	{ 0, 255 },
622
	/* old= rw, write:xxx, read:  0, close:add */
623
	{ 0, 255 },
624
	/* old= rw, write:xxx, read:  0, close:del */
625
	{ 0, 255 },
626
	/* old= rw, write:xxx, read:  0, close:xxx */
627
	{ 0, 255 },
628
	/* old= rw, write:xxx, read:add, close:  0 */
629
	{ 0, 255 },
630
	/* old= rw, write:xxx, read:add, close:add */
631
	{ 0, 255 },
632
	/* old= rw, write:xxx, read:add, close:del */
633
	{ 0, 255 },
634
	/* old= rw, write:xxx, read:add, close:xxx */
635
	{ 0, 255 },
636
	/* old= rw, write:xxx, read:del, close:  0 */
637
	{ 0, 255 },
638
	/* old= rw, write:xxx, read:del, close:add */
639
	{ 0, 255 },
640
	/* old= rw, write:xxx, read:del, close:del */
641
	{ 0, 255 },
642
	/* old= rw, write:xxx, read:del, close:xxx */
643
	{ 0, 255 },
644
	/* old= rw, write:xxx, read:xxx, close:  0 */
645
	{ 0, 255 },
646
	/* old= rw, write:xxx, read:xxx, close:add */
647
	{ 0, 255 },
648
	/* old= rw, write:xxx, read:xxx, close:del */
649
	{ 0, 255 },
650
	/* old= rw, write:xxx, read:xxx, close:xxx */
651
	{ 0, 255 },
652
	/* old=  c, write:  0, read:  0, close:  0 */
653
	{ 0, 0 },
654
	/* old=  c, write:  0, read:  0, close:add */
655
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
656
	/* old=  c, write:  0, read:  0, close:del */
657
	{ EPOLLRDHUP, EPOLL_CTL_DEL },
658
	/* old=  c, write:  0, read:  0, close:xxx */
659
	{ 0, 255 },
660
	/* old=  c, write:  0, read:add, close:  0 */
661
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
662
	/* old=  c, write:  0, read:add, close:add */
663
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
664
	/* old=  c, write:  0, read:add, close:del */
665
	{ EPOLLIN, EPOLL_CTL_MOD },
666
	/* old=  c, write:  0, read:add, close:xxx */
667
	{ 0, 255 },
668
	/* old=  c, write:  0, read:del, close:  0 */
669
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
670
	/* old=  c, write:  0, read:del, close:add */
671
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
672
	/* old=  c, write:  0, read:del, close:del */
673
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_DEL },
674
	/* old=  c, write:  0, read:del, close:xxx */
675
	{ 0, 255 },
676
	/* old=  c, write:  0, read:xxx, close:  0 */
677
	{ 0, 255 },
678
	/* old=  c, write:  0, read:xxx, close:add */
679
	{ 0, 255 },
680
	/* old=  c, write:  0, read:xxx, close:del */
681
	{ 0, 255 },
682
	/* old=  c, write:  0, read:xxx, close:xxx */
683
	{ 0, 255 },
684
	/* old=  c, write:add, read:  0, close:  0 */
685
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
686
	/* old=  c, write:add, read:  0, close:add */
687
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
688
	/* old=  c, write:add, read:  0, close:del */
689
	{ EPOLLOUT, EPOLL_CTL_MOD },
690
	/* old=  c, write:add, read:  0, close:xxx */
691
	{ 0, 255 },
692
	/* old=  c, write:add, read:add, close:  0 */
693
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
694
	/* old=  c, write:add, read:add, close:add */
695
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
696
	/* old=  c, write:add, read:add, close:del */
697
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
698
	/* old=  c, write:add, read:add, close:xxx */
699
	{ 0, 255 },
700
	/* old=  c, write:add, read:del, close:  0 */
701
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
702
	/* old=  c, write:add, read:del, close:add */
703
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
704
	/* old=  c, write:add, read:del, close:del */
705
	{ EPOLLOUT, EPOLL_CTL_MOD },
706
	/* old=  c, write:add, read:del, close:xxx */
707
	{ 0, 255 },
708
	/* old=  c, write:add, read:xxx, close:  0 */
709
	{ 0, 255 },
710
	/* old=  c, write:add, read:xxx, close:add */
711
	{ 0, 255 },
712
	/* old=  c, write:add, read:xxx, close:del */
713
	{ 0, 255 },
714
	/* old=  c, write:add, read:xxx, close:xxx */
715
	{ 0, 255 },
716
	/* old=  c, write:del, read:  0, close:  0 */
717
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
718
	/* old=  c, write:del, read:  0, close:add */
719
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
720
	/* old=  c, write:del, read:  0, close:del */
721
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL },
722
	/* old=  c, write:del, read:  0, close:xxx */
723
	{ 0, 255 },
724
	/* old=  c, write:del, read:add, close:  0 */
725
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
726
	/* old=  c, write:del, read:add, close:add */
727
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
728
	/* old=  c, write:del, read:add, close:del */
729
	{ EPOLLIN, EPOLL_CTL_MOD },
730
	/* old=  c, write:del, read:add, close:xxx */
731
	{ 0, 255 },
732
	/* old=  c, write:del, read:del, close:  0 */
733
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
734
	/* old=  c, write:del, read:del, close:add */
735
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
736
	/* old=  c, write:del, read:del, close:del */
737
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL },
738
	/* old=  c, write:del, read:del, close:xxx */
739
	{ 0, 255 },
740
	/* old=  c, write:del, read:xxx, close:  0 */
741
	{ 0, 255 },
742
	/* old=  c, write:del, read:xxx, close:add */
743
	{ 0, 255 },
744
	/* old=  c, write:del, read:xxx, close:del */
745
	{ 0, 255 },
746
	/* old=  c, write:del, read:xxx, close:xxx */
747
	{ 0, 255 },
748
	/* old=  c, write:xxx, read:  0, close:  0 */
749
	{ 0, 255 },
750
	/* old=  c, write:xxx, read:  0, close:add */
751
	{ 0, 255 },
752
	/* old=  c, write:xxx, read:  0, close:del */
753
	{ 0, 255 },
754
	/* old=  c, write:xxx, read:  0, close:xxx */
755
	{ 0, 255 },
756
	/* old=  c, write:xxx, read:add, close:  0 */
757
	{ 0, 255 },
758
	/* old=  c, write:xxx, read:add, close:add */
759
	{ 0, 255 },
760
	/* old=  c, write:xxx, read:add, close:del */
761
	{ 0, 255 },
762
	/* old=  c, write:xxx, read:add, close:xxx */
763
	{ 0, 255 },
764
	/* old=  c, write:xxx, read:del, close:  0 */
765
	{ 0, 255 },
766
	/* old=  c, write:xxx, read:del, close:add */
767
	{ 0, 255 },
768
	/* old=  c, write:xxx, read:del, close:del */
769
	{ 0, 255 },
770
	/* old=  c, write:xxx, read:del, close:xxx */
771
	{ 0, 255 },
772
	/* old=  c, write:xxx, read:xxx, close:  0 */
773
	{ 0, 255 },
774
	/* old=  c, write:xxx, read:xxx, close:add */
775
	{ 0, 255 },
776
	/* old=  c, write:xxx, read:xxx, close:del */
777
	{ 0, 255 },
778
	/* old=  c, write:xxx, read:xxx, close:xxx */
779
	{ 0, 255 },
780
	/* old= cr, write:  0, read:  0, close:  0 */
781
	{ 0, 0 },
782
	/* old= cr, write:  0, read:  0, close:add */
783
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
784
	/* old= cr, write:  0, read:  0, close:del */
785
	{ EPOLLIN, EPOLL_CTL_MOD },
786
	/* old= cr, write:  0, read:  0, close:xxx */
787
	{ 0, 255 },
788
	/* old= cr, write:  0, read:add, close:  0 */
789
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
790
	/* old= cr, write:  0, read:add, close:add */
791
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
792
	/* old= cr, write:  0, read:add, close:del */
793
	{ EPOLLIN, EPOLL_CTL_MOD },
794
	/* old= cr, write:  0, read:add, close:xxx */
795
	{ 0, 255 },
796
	/* old= cr, write:  0, read:del, close:  0 */
797
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
798
	/* old= cr, write:  0, read:del, close:add */
799
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
800
	/* old= cr, write:  0, read:del, close:del */
801
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_DEL },
802
	/* old= cr, write:  0, read:del, close:xxx */
803
	{ 0, 255 },
804
	/* old= cr, write:  0, read:xxx, close:  0 */
805
	{ 0, 255 },
806
	/* old= cr, write:  0, read:xxx, close:add */
807
	{ 0, 255 },
808
	/* old= cr, write:  0, read:xxx, close:del */
809
	{ 0, 255 },
810
	/* old= cr, write:  0, read:xxx, close:xxx */
811
	{ 0, 255 },
812
	/* old= cr, write:add, read:  0, close:  0 */
813
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
814
	/* old= cr, write:add, read:  0, close:add */
815
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
816
	/* old= cr, write:add, read:  0, close:del */
817
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
818
	/* old= cr, write:add, read:  0, close:xxx */
819
	{ 0, 255 },
820
	/* old= cr, write:add, read:add, close:  0 */
821
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
822
	/* old= cr, write:add, read:add, close:add */
823
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
824
	/* old= cr, write:add, read:add, close:del */
825
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
826
	/* old= cr, write:add, read:add, close:xxx */
827
	{ 0, 255 },
828
	/* old= cr, write:add, read:del, close:  0 */
829
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
830
	/* old= cr, write:add, read:del, close:add */
831
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
832
	/* old= cr, write:add, read:del, close:del */
833
	{ EPOLLOUT, EPOLL_CTL_MOD },
834
	/* old= cr, write:add, read:del, close:xxx */
835
	{ 0, 255 },
836
	/* old= cr, write:add, read:xxx, close:  0 */
837
	{ 0, 255 },
838
	/* old= cr, write:add, read:xxx, close:add */
839
	{ 0, 255 },
840
	/* old= cr, write:add, read:xxx, close:del */
841
	{ 0, 255 },
842
	/* old= cr, write:add, read:xxx, close:xxx */
843
	{ 0, 255 },
844
	/* old= cr, write:del, read:  0, close:  0 */
845
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
846
	/* old= cr, write:del, read:  0, close:add */
847
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
848
	/* old= cr, write:del, read:  0, close:del */
849
	{ EPOLLIN, EPOLL_CTL_MOD },
850
	/* old= cr, write:del, read:  0, close:xxx */
851
	{ 0, 255 },
852
	/* old= cr, write:del, read:add, close:  0 */
853
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
854
	/* old= cr, write:del, read:add, close:add */
855
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
856
	/* old= cr, write:del, read:add, close:del */
857
	{ EPOLLIN, EPOLL_CTL_MOD },
858
	/* old= cr, write:del, read:add, close:xxx */
859
	{ 0, 255 },
860
	/* old= cr, write:del, read:del, close:  0 */
861
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
862
	/* old= cr, write:del, read:del, close:add */
863
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
864
	/* old= cr, write:del, read:del, close:del */
865
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL },
866
	/* old= cr, write:del, read:del, close:xxx */
867
	{ 0, 255 },
868
	/* old= cr, write:del, read:xxx, close:  0 */
869
	{ 0, 255 },
870
	/* old= cr, write:del, read:xxx, close:add */
871
	{ 0, 255 },
872
	/* old= cr, write:del, read:xxx, close:del */
873
	{ 0, 255 },
874
	/* old= cr, write:del, read:xxx, close:xxx */
875
	{ 0, 255 },
876
	/* old= cr, write:xxx, read:  0, close:  0 */
877
	{ 0, 255 },
878
	/* old= cr, write:xxx, read:  0, close:add */
879
	{ 0, 255 },
880
	/* old= cr, write:xxx, read:  0, close:del */
881
	{ 0, 255 },
882
	/* old= cr, write:xxx, read:  0, close:xxx */
883
	{ 0, 255 },
884
	/* old= cr, write:xxx, read:add, close:  0 */
885
	{ 0, 255 },
886
	/* old= cr, write:xxx, read:add, close:add */
887
	{ 0, 255 },
888
	/* old= cr, write:xxx, read:add, close:del */
889
	{ 0, 255 },
890
	/* old= cr, write:xxx, read:add, close:xxx */
891
	{ 0, 255 },
892
	/* old= cr, write:xxx, read:del, close:  0 */
893
	{ 0, 255 },
894
	/* old= cr, write:xxx, read:del, close:add */
895
	{ 0, 255 },
896
	/* old= cr, write:xxx, read:del, close:del */
897
	{ 0, 255 },
898
	/* old= cr, write:xxx, read:del, close:xxx */
899
	{ 0, 255 },
900
	/* old= cr, write:xxx, read:xxx, close:  0 */
901
	{ 0, 255 },
902
	/* old= cr, write:xxx, read:xxx, close:add */
903
	{ 0, 255 },
904
	/* old= cr, write:xxx, read:xxx, close:del */
905
	{ 0, 255 },
906
	/* old= cr, write:xxx, read:xxx, close:xxx */
907
	{ 0, 255 },
908
	/* old= cw, write:  0, read:  0, close:  0 */
909
	{ 0, 0 },
910
	/* old= cw, write:  0, read:  0, close:add */
911
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
912
	/* old= cw, write:  0, read:  0, close:del */
913
	{ EPOLLOUT, EPOLL_CTL_MOD },
914
	/* old= cw, write:  0, read:  0, close:xxx */
915
	{ 0, 255 },
916
	/* old= cw, write:  0, read:add, close:  0 */
917
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
918
	/* old= cw, write:  0, read:add, close:add */
919
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
920
	/* old= cw, write:  0, read:add, close:del */
921
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
922
	/* old= cw, write:  0, read:add, close:xxx */
923
	{ 0, 255 },
924
	/* old= cw, write:  0, read:del, close:  0 */
925
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
926
	/* old= cw, write:  0, read:del, close:add */
927
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
928
	/* old= cw, write:  0, read:del, close:del */
929
	{ EPOLLOUT, EPOLL_CTL_MOD },
930
	/* old= cw, write:  0, read:del, close:xxx */
931
	{ 0, 255 },
932
	/* old= cw, write:  0, read:xxx, close:  0 */
933
	{ 0, 255 },
934
	/* old= cw, write:  0, read:xxx, close:add */
935
	{ 0, 255 },
936
	/* old= cw, write:  0, read:xxx, close:del */
937
	{ 0, 255 },
938
	/* old= cw, write:  0, read:xxx, close:xxx */
939
	{ 0, 255 },
940
	/* old= cw, write:add, read:  0, close:  0 */
941
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
942
	/* old= cw, write:add, read:  0, close:add */
943
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
944
	/* old= cw, write:add, read:  0, close:del */
945
	{ EPOLLOUT, EPOLL_CTL_MOD },
946
	/* old= cw, write:add, read:  0, close:xxx */
947
	{ 0, 255 },
948
	/* old= cw, write:add, read:add, close:  0 */
949
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
950
	/* old= cw, write:add, read:add, close:add */
951
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
952
	/* old= cw, write:add, read:add, close:del */
953
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
954
	/* old= cw, write:add, read:add, close:xxx */
955
	{ 0, 255 },
956
	/* old= cw, write:add, read:del, close:  0 */
957
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
958
	/* old= cw, write:add, read:del, close:add */
959
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
960
	/* old= cw, write:add, read:del, close:del */
961
	{ EPOLLOUT, EPOLL_CTL_MOD },
962
	/* old= cw, write:add, read:del, close:xxx */
963
	{ 0, 255 },
964
	/* old= cw, write:add, read:xxx, close:  0 */
965
	{ 0, 255 },
966
	/* old= cw, write:add, read:xxx, close:add */
967
	{ 0, 255 },
968
	/* old= cw, write:add, read:xxx, close:del */
969
	{ 0, 255 },
970
	/* old= cw, write:add, read:xxx, close:xxx */
971
	{ 0, 255 },
972
	/* old= cw, write:del, read:  0, close:  0 */
973
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
974
	/* old= cw, write:del, read:  0, close:add */
975
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
976
	/* old= cw, write:del, read:  0, close:del */
977
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL },
978
	/* old= cw, write:del, read:  0, close:xxx */
979
	{ 0, 255 },
980
	/* old= cw, write:del, read:add, close:  0 */
981
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
982
	/* old= cw, write:del, read:add, close:add */
983
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
984
	/* old= cw, write:del, read:add, close:del */
985
	{ EPOLLIN, EPOLL_CTL_MOD },
986
	/* old= cw, write:del, read:add, close:xxx */
987
	{ 0, 255 },
988
	/* old= cw, write:del, read:del, close:  0 */
989
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
990
	/* old= cw, write:del, read:del, close:add */
991
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
992
	/* old= cw, write:del, read:del, close:del */
993
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL },
994
	/* old= cw, write:del, read:del, close:xxx */
995
	{ 0, 255 },
996
	/* old= cw, write:del, read:xxx, close:  0 */
997
	{ 0, 255 },
998
	/* old= cw, write:del, read:xxx, close:add */
999
	{ 0, 255 },
1000
	/* old= cw, write:del, read:xxx, close:del */
1001
	{ 0, 255 },
1002
	/* old= cw, write:del, read:xxx, close:xxx */
1003
	{ 0, 255 },
1004
	/* old= cw, write:xxx, read:  0, close:  0 */
1005
	{ 0, 255 },
1006
	/* old= cw, write:xxx, read:  0, close:add */
1007
	{ 0, 255 },
1008
	/* old= cw, write:xxx, read:  0, close:del */
1009
	{ 0, 255 },
1010
	/* old= cw, write:xxx, read:  0, close:xxx */
1011
	{ 0, 255 },
1012
	/* old= cw, write:xxx, read:add, close:  0 */
1013
	{ 0, 255 },
1014
	/* old= cw, write:xxx, read:add, close:add */
1015
	{ 0, 255 },
1016
	/* old= cw, write:xxx, read:add, close:del */
1017
	{ 0, 255 },
1018
	/* old= cw, write:xxx, read:add, close:xxx */
1019
	{ 0, 255 },
1020
	/* old= cw, write:xxx, read:del, close:  0 */
1021
	{ 0, 255 },
1022
	/* old= cw, write:xxx, read:del, close:add */
1023
	{ 0, 255 },
1024
	/* old= cw, write:xxx, read:del, close:del */
1025
	{ 0, 255 },
1026
	/* old= cw, write:xxx, read:del, close:xxx */
1027
	{ 0, 255 },
1028
	/* old= cw, write:xxx, read:xxx, close:  0 */
1029
	{ 0, 255 },
1030
	/* old= cw, write:xxx, read:xxx, close:add */
1031
	{ 0, 255 },
1032
	/* old= cw, write:xxx, read:xxx, close:del */
1033
	{ 0, 255 },
1034
	/* old= cw, write:xxx, read:xxx, close:xxx */
1035
	{ 0, 255 },
1036
	/* old=crw, write:  0, read:  0, close:  0 */
1037
	{ 0, 0 },
1038
	/* old=crw, write:  0, read:  0, close:add */
1039
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
1040
	/* old=crw, write:  0, read:  0, close:del */
1041
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
1042
	/* old=crw, write:  0, read:  0, close:xxx */
1043
	{ 0, 255 },
1044
	/* old=crw, write:  0, read:add, close:  0 */
1045
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
1046
	/* old=crw, write:  0, read:add, close:add */
1047
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
1048
	/* old=crw, write:  0, read:add, close:del */
1049
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
1050
	/* old=crw, write:  0, read:add, close:xxx */
1051
	{ 0, 255 },
1052
	/* old=crw, write:  0, read:del, close:  0 */
1053
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
1054
	/* old=crw, write:  0, read:del, close:add */
1055
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
1056
	/* old=crw, write:  0, read:del, close:del */
1057
	{ EPOLLOUT, EPOLL_CTL_MOD },
1058
	/* old=crw, write:  0, read:del, close:xxx */
1059
	{ 0, 255 },
1060
	/* old=crw, write:  0, read:xxx, close:  0 */
1061
	{ 0, 255 },
1062
	/* old=crw, write:  0, read:xxx, close:add */
1063
	{ 0, 255 },
1064
	/* old=crw, write:  0, read:xxx, close:del */
1065
	{ 0, 255 },
1066
	/* old=crw, write:  0, read:xxx, close:xxx */
1067
	{ 0, 255 },
1068
	/* old=crw, write:add, read:  0, close:  0 */
1069
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
1070
	/* old=crw, write:add, read:  0, close:add */
1071
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
1072
	/* old=crw, write:add, read:  0, close:del */
1073
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
1074
	/* old=crw, write:add, read:  0, close:xxx */
1075
	{ 0, 255 },
1076
	/* old=crw, write:add, read:add, close:  0 */
1077
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
1078
	/* old=crw, write:add, read:add, close:add */
1079
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
1080
	/* old=crw, write:add, read:add, close:del */
1081
	{ EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD },
1082
	/* old=crw, write:add, read:add, close:xxx */
1083
	{ 0, 255 },
1084
	/* old=crw, write:add, read:del, close:  0 */
1085
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
1086
	/* old=crw, write:add, read:del, close:add */
1087
	{ EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD },
1088
	/* old=crw, write:add, read:del, close:del */
1089
	{ EPOLLOUT, EPOLL_CTL_MOD },
1090
	/* old=crw, write:add, read:del, close:xxx */
1091
	{ 0, 255 },
1092
	/* old=crw, write:add, read:xxx, close:  0 */
1093
	{ 0, 255 },
1094
	/* old=crw, write:add, read:xxx, close:add */
1095
	{ 0, 255 },
1096
	/* old=crw, write:add, read:xxx, close:del */
1097
	{ 0, 255 },
1098
	/* old=crw, write:add, read:xxx, close:xxx */
1099
	{ 0, 255 },
1100
	/* old=crw, write:del, read:  0, close:  0 */
1101
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
1102
	/* old=crw, write:del, read:  0, close:add */
1103
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
1104
	/* old=crw, write:del, read:  0, close:del */
1105
	{ EPOLLIN, EPOLL_CTL_MOD },
1106
	/* old=crw, write:del, read:  0, close:xxx */
1107
	{ 0, 255 },
1108
	/* old=crw, write:del, read:add, close:  0 */
1109
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
1110
	/* old=crw, write:del, read:add, close:add */
1111
	{ EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD },
1112
	/* old=crw, write:del, read:add, close:del */
1113
	{ EPOLLIN, EPOLL_CTL_MOD },
1114
	/* old=crw, write:del, read:add, close:xxx */
1115
	{ 0, 255 },
1116
	/* old=crw, write:del, read:del, close:  0 */
1117
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
1118
	/* old=crw, write:del, read:del, close:add */
1119
	{ EPOLLRDHUP, EPOLL_CTL_MOD },
1120
	/* old=crw, write:del, read:del, close:del */
1121
	{ EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL },
1122
	/* old=crw, write:del, read:del, close:xxx */
1123
	{ 0, 255 },
1124
	/* old=crw, write:del, read:xxx, close:  0 */
1125
	{ 0, 255 },
1126
	/* old=crw, write:del, read:xxx, close:add */
1127
	{ 0, 255 },
1128
	/* old=crw, write:del, read:xxx, close:del */
1129
	{ 0, 255 },
1130
	/* old=crw, write:del, read:xxx, close:xxx */
1131
	{ 0, 255 },
1132
	/* old=crw, write:xxx, read:  0, close:  0 */
1133
	{ 0, 255 },
1134
	/* old=crw, write:xxx, read:  0, close:add */
1135
	{ 0, 255 },
1136
	/* old=crw, write:xxx, read:  0, close:del */
1137
	{ 0, 255 },
1138
	/* old=crw, write:xxx, read:  0, close:xxx */
1139
	{ 0, 255 },
1140
	/* old=crw, write:xxx, read:add, close:  0 */
1141
	{ 0, 255 },
1142
	/* old=crw, write:xxx, read:add, close:add */
1143
	{ 0, 255 },
1144
	/* old=crw, write:xxx, read:add, close:del */
1145
	{ 0, 255 },
1146
	/* old=crw, write:xxx, read:add, close:xxx */
1147
	{ 0, 255 },
1148
	/* old=crw, write:xxx, read:del, close:  0 */
1149
	{ 0, 255 },
1150
	/* old=crw, write:xxx, read:del, close:add */
1151
	{ 0, 255 },
1152
	/* old=crw, write:xxx, read:del, close:del */
1153
	{ 0, 255 },
1154
	/* old=crw, write:xxx, read:del, close:xxx */
1155
	{ 0, 255 },
1156
	/* old=crw, write:xxx, read:xxx, close:  0 */
1157
	{ 0, 255 },
1158
	/* old=crw, write:xxx, read:xxx, close:add */
1159
	{ 0, 255 },
1160
	/* old=crw, write:xxx, read:xxx, close:del */
1161
	{ 0, 255 },
1162
	/* old=crw, write:xxx, read:xxx, close:xxx */
1163
	{ 0, 255 },
1164
};
1165

1166
#endif
1167

1168
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