From 43ffcf69779f0b763aa9688c42a5bb1d2cdb42b5 Mon Sep 17 00:00:00 2001 From: Nick Mathewson Date: Tue, 21 Jan 2014 15:47:44 -0500 Subject: [PATCH] Split epoll lookup table into a separate header file It accounted for more than half the length of epoll.c, and it's machine-generated, so we might as well keep it separate. --- CMakeLists.txt | 1 + Makefile.am | 1 + epoll.c | 1140 +--------------------------------------- epolltable-internal.h | 1166 +++++++++++++++++++++++++++++++++++++++++ 4 files changed, 1172 insertions(+), 1136 deletions(-) create mode 100644 epolltable-internal.h diff --git a/CMakeLists.txt b/CMakeLists.txt index 35636186db..52bd12d3cc 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -473,6 +473,7 @@ set(HDR_PRIVATE bufferevent-internal.h changelist-internal.h defer-internal.h + epolltable-internal.h evbuffer-internal.h include/evdns.h event-internal.h diff --git a/Makefile.am b/Makefile.am index 3ca6a15123..58f1f016a8 100644 --- a/Makefile.am +++ b/Makefile.am @@ -254,6 +254,7 @@ noinst_HEADERS += \ changelist-internal.h \ compat/sys/queue.h \ defer-internal.h \ + epolltable-internal.h \ evbuffer-internal.h \ evconfig-private.h \ event-internal.h \ diff --git a/epoll.c b/epoll.c index bd425ed516..41a2a120f2 100644 --- a/epoll.c +++ b/epoll.c @@ -59,6 +59,7 @@ #include "evmap-internal.h" #include "changelist-internal.h" #include "time-internal.h" +#include "epolltable-internal.h" #if defined(EVENT__HAVE_SYS_TIMERFD_H) && \ defined(EVENT__HAVE_TIMERFD_CREATE) && \ @@ -241,1139 +242,6 @@ epoll_op_to_string(int op) "???"; } -/* - Here are the values we're masking off to decide what operations to do. - Note that since EV_READ|EV_WRITE. - - Note also that this table is a little sparse, since ADD+DEL is - nonsensical ("xxx" in the list below.) - - Note also also that we are shifting old_events by only 5 bits, since - EV_READ is 2 and EV_WRITE is 4. - - The table was auto-generated with a python script, according to this - pseudocode: - - If either the read or the write change is add+del: - This is impossible; Set op==-1, events=0. - Else, if either the read or the write change is add: - Set events to 0. - If the read change is add, or - (the read change is not del, and ev_read is in old_events): - Add EPOLLIN to events. - If the write change is add, or - (the write change is not del, and ev_write is in old_events): - Add EPOLLOUT to events. - - If old_events is set: - Set op to EPOLL_CTL_MOD [*1,*2] - Else: - Set op to EPOLL_CTL_ADD [*3] - - Else, if the read or the write change is del: - Set op to EPOLL_CTL_DEL. - If the read change is del: - If the write change is del: - Set events to EPOLLIN|EPOLLOUT - Else if ev_write is in old_events: - Set events to EPOLLOUT - Set op to EPOLL_CTL_MOD - Else - Set events to EPOLLIN - Else: - {The write change is del.} - If ev_read is in old_events: - Set events to EPOLLIN - Set op to EPOLL_CTL_MOD - Else: - Set the events to EPOLLOUT - - Else: - There is no read or write change; set op to 0 and events to 0. - - The logic is a little tricky, since we had no events set on the fd before, - we need to set op="ADD" and set events=the events we want to add. If we - had any events set on the fd before, and we want any events to remain on - the fd, we need to say op="MOD" and set events=the events we want to - remain. But if we want to delete the last event, we say op="DEL" and - set events=(any non-null pointer). - - [*1] This MOD is only a guess. MOD might fail with ENOENT if the file was - closed and a new file was opened with the same fd. If so, we'll retry - with ADD. - - [*2] We can't replace this with a no-op even if old_events is the same as - the new events: if the file was closed and reopened, we need to retry - with an ADD. (We do a MOD in this case since "no change" is more - common than "close and reopen", so we'll usually wind up doing 1 - syscalls instead of 2.) - - [*3] This ADD is only a guess. There is a fun Linux kernel issue where if - you have two fds for the same file (via dup) and you ADD one to an - epfd, then close it, then re-create it with the same fd (via dup2 or an - unlucky dup), then try to ADD it again, you'll get an EEXIST, since the - struct epitem is not actually removed from the struct eventpoll until - the file itself is closed. - - EV_CHANGE_ADD==1 - EV_CHANGE_DEL==2 - EV_READ ==2 - EV_WRITE ==4 - EV_CLOSED ==0x80 - - Bit 0: close change is add - Bit 1: close change is del - Bit 2: read change is add - Bit 3: read change is del - Bit 4: write change is add - Bit 5: write change is del - Bit 6: old events had EV_READ - Bit 7: old events had EV_WRITE - Bit 8: old events had EV_CLOSED -*/ - -#define INDEX(c) \ - ( (((c)->close_change&(EV_CHANGE_ADD|EV_CHANGE_DEL))) | \ - (((c)->read_change&(EV_CHANGE_ADD|EV_CHANGE_DEL)) << 2) | \ - (((c)->write_change&(EV_CHANGE_ADD|EV_CHANGE_DEL)) << 4) | \ - (((c)->old_events&(EV_READ|EV_WRITE)) << 5) | \ - (((c)->old_events&(EV_CLOSED)) << 1) \ - ) - -#if EV_READ != 2 || EV_WRITE != 4 || EV_CHANGE_ADD != 1 || EV_CHANGE_DEL != 2 -#error "Libevent's internals changed! Regenerate the op_table in epoll.c" -#endif - -static const struct operation { - int events; - int op; -} op_table[] = { - /* old= 0, write: 0, read: 0, close: 0 */ - { 0, 0 }, - /* old= 0, write: 0, read: 0, close:add */ - { EPOLLRDHUP, EPOLL_CTL_ADD }, - /* old= 0, write: 0, read: 0, close:del */ - { EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= 0, write: 0, read: 0, close:xxx */ - { 0, 255 }, - /* old= 0, write: 0, read:add, close: 0 */ - { EPOLLIN, EPOLL_CTL_ADD }, - /* old= 0, write: 0, read:add, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_ADD }, - /* old= 0, write: 0, read:add, close:del */ - { EPOLLIN, EPOLL_CTL_ADD }, - /* old= 0, write: 0, read:add, close:xxx */ - { 0, 255 }, - /* old= 0, write: 0, read:del, close: 0 */ - { EPOLLIN, EPOLL_CTL_DEL }, - /* old= 0, write: 0, read:del, close:add */ - { EPOLLRDHUP, EPOLL_CTL_ADD }, - /* old= 0, write: 0, read:del, close:del */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= 0, write: 0, read:del, close:xxx */ - { 0, 255 }, - /* old= 0, write: 0, read:xxx, close: 0 */ - { 0, 255 }, - /* old= 0, write: 0, read:xxx, close:add */ - { 0, 255 }, - /* old= 0, write: 0, read:xxx, close:del */ - { 0, 255 }, - /* old= 0, write: 0, read:xxx, close:xxx */ - { 0, 255 }, - /* old= 0, write:add, read: 0, close: 0 */ - { EPOLLOUT, EPOLL_CTL_ADD }, - /* old= 0, write:add, read: 0, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_ADD }, - /* old= 0, write:add, read: 0, close:del */ - { EPOLLOUT, EPOLL_CTL_ADD }, - /* old= 0, write:add, read: 0, close:xxx */ - { 0, 255 }, - /* old= 0, write:add, read:add, close: 0 */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_ADD }, - /* old= 0, write:add, read:add, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_ADD }, - /* old= 0, write:add, read:add, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_ADD }, - /* old= 0, write:add, read:add, close:xxx */ - { 0, 255 }, - /* old= 0, write:add, read:del, close: 0 */ - { EPOLLOUT, EPOLL_CTL_ADD }, - /* old= 0, write:add, read:del, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_ADD }, - /* old= 0, write:add, read:del, close:del */ - { EPOLLOUT, EPOLL_CTL_ADD }, - /* old= 0, write:add, read:del, close:xxx */ - { 0, 255 }, - /* old= 0, write:add, read:xxx, close: 0 */ - { 0, 255 }, - /* old= 0, write:add, read:xxx, close:add */ - { 0, 255 }, - /* old= 0, write:add, read:xxx, close:del */ - { 0, 255 }, - /* old= 0, write:add, read:xxx, close:xxx */ - { 0, 255 }, - /* old= 0, write:del, read: 0, close: 0 */ - { EPOLLOUT, EPOLL_CTL_DEL }, - /* old= 0, write:del, read: 0, close:add */ - { EPOLLRDHUP, EPOLL_CTL_ADD }, - /* old= 0, write:del, read: 0, close:del */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= 0, write:del, read: 0, close:xxx */ - { 0, 255 }, - /* old= 0, write:del, read:add, close: 0 */ - { EPOLLIN, EPOLL_CTL_ADD }, - /* old= 0, write:del, read:add, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_ADD }, - /* old= 0, write:del, read:add, close:del */ - { EPOLLIN, EPOLL_CTL_ADD }, - /* old= 0, write:del, read:add, close:xxx */ - { 0, 255 }, - /* old= 0, write:del, read:del, close: 0 */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_DEL }, - /* old= 0, write:del, read:del, close:add */ - { EPOLLRDHUP, EPOLL_CTL_ADD }, - /* old= 0, write:del, read:del, close:del */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= 0, write:del, read:del, close:xxx */ - { 0, 255 }, - /* old= 0, write:del, read:xxx, close: 0 */ - { 0, 255 }, - /* old= 0, write:del, read:xxx, close:add */ - { 0, 255 }, - /* old= 0, write:del, read:xxx, close:del */ - { 0, 255 }, - /* old= 0, write:del, read:xxx, close:xxx */ - { 0, 255 }, - /* old= 0, write:xxx, read: 0, close: 0 */ - { 0, 255 }, - /* old= 0, write:xxx, read: 0, close:add */ - { 0, 255 }, - /* old= 0, write:xxx, read: 0, close:del */ - { 0, 255 }, - /* old= 0, write:xxx, read: 0, close:xxx */ - { 0, 255 }, - /* old= 0, write:xxx, read:add, close: 0 */ - { 0, 255 }, - /* old= 0, write:xxx, read:add, close:add */ - { 0, 255 }, - /* old= 0, write:xxx, read:add, close:del */ - { 0, 255 }, - /* old= 0, write:xxx, read:add, close:xxx */ - { 0, 255 }, - /* old= 0, write:xxx, read:del, close: 0 */ - { 0, 255 }, - /* old= 0, write:xxx, read:del, close:add */ - { 0, 255 }, - /* old= 0, write:xxx, read:del, close:del */ - { 0, 255 }, - /* old= 0, write:xxx, read:del, close:xxx */ - { 0, 255 }, - /* old= 0, write:xxx, read:xxx, close: 0 */ - { 0, 255 }, - /* old= 0, write:xxx, read:xxx, close:add */ - { 0, 255 }, - /* old= 0, write:xxx, read:xxx, close:del */ - { 0, 255 }, - /* old= 0, write:xxx, read:xxx, close:xxx */ - { 0, 255 }, - /* old= r, write: 0, read: 0, close: 0 */ - { 0, 0 }, - /* old= r, write: 0, read: 0, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= r, write: 0, read: 0, close:del */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= r, write: 0, read: 0, close:xxx */ - { 0, 255 }, - /* old= r, write: 0, read:add, close: 0 */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= r, write: 0, read:add, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= r, write: 0, read:add, close:del */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= r, write: 0, read:add, close:xxx */ - { 0, 255 }, - /* old= r, write: 0, read:del, close: 0 */ - { EPOLLIN, EPOLL_CTL_DEL }, - /* old= r, write: 0, read:del, close:add */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= r, write: 0, read:del, close:del */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= r, write: 0, read:del, close:xxx */ - { 0, 255 }, - /* old= r, write: 0, read:xxx, close: 0 */ - { 0, 255 }, - /* old= r, write: 0, read:xxx, close:add */ - { 0, 255 }, - /* old= r, write: 0, read:xxx, close:del */ - { 0, 255 }, - /* old= r, write: 0, read:xxx, close:xxx */ - { 0, 255 }, - /* old= r, write:add, read: 0, close: 0 */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= r, write:add, read: 0, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= r, write:add, read: 0, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= r, write:add, read: 0, close:xxx */ - { 0, 255 }, - /* old= r, write:add, read:add, close: 0 */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= r, write:add, read:add, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= r, write:add, read:add, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= r, write:add, read:add, close:xxx */ - { 0, 255 }, - /* old= r, write:add, read:del, close: 0 */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= r, write:add, read:del, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= r, write:add, read:del, close:del */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= r, write:add, read:del, close:xxx */ - { 0, 255 }, - /* old= r, write:add, read:xxx, close: 0 */ - { 0, 255 }, - /* old= r, write:add, read:xxx, close:add */ - { 0, 255 }, - /* old= r, write:add, read:xxx, close:del */ - { 0, 255 }, - /* old= r, write:add, read:xxx, close:xxx */ - { 0, 255 }, - /* old= r, write:del, read: 0, close: 0 */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= r, write:del, read: 0, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= r, write:del, read: 0, close:del */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= r, write:del, read: 0, close:xxx */ - { 0, 255 }, - /* old= r, write:del, read:add, close: 0 */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= r, write:del, read:add, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= r, write:del, read:add, close:del */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= r, write:del, read:add, close:xxx */ - { 0, 255 }, - /* old= r, write:del, read:del, close: 0 */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_DEL }, - /* old= r, write:del, read:del, close:add */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= r, write:del, read:del, close:del */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= r, write:del, read:del, close:xxx */ - { 0, 255 }, - /* old= r, write:del, read:xxx, close: 0 */ - { 0, 255 }, - /* old= r, write:del, read:xxx, close:add */ - { 0, 255 }, - /* old= r, write:del, read:xxx, close:del */ - { 0, 255 }, - /* old= r, write:del, read:xxx, close:xxx */ - { 0, 255 }, - /* old= r, write:xxx, read: 0, close: 0 */ - { 0, 255 }, - /* old= r, write:xxx, read: 0, close:add */ - { 0, 255 }, - /* old= r, write:xxx, read: 0, close:del */ - { 0, 255 }, - /* old= r, write:xxx, read: 0, close:xxx */ - { 0, 255 }, - /* old= r, write:xxx, read:add, close: 0 */ - { 0, 255 }, - /* old= r, write:xxx, read:add, close:add */ - { 0, 255 }, - /* old= r, write:xxx, read:add, close:del */ - { 0, 255 }, - /* old= r, write:xxx, read:add, close:xxx */ - { 0, 255 }, - /* old= r, write:xxx, read:del, close: 0 */ - { 0, 255 }, - /* old= r, write:xxx, read:del, close:add */ - { 0, 255 }, - /* old= r, write:xxx, read:del, close:del */ - { 0, 255 }, - /* old= r, write:xxx, read:del, close:xxx */ - { 0, 255 }, - /* old= r, write:xxx, read:xxx, close: 0 */ - { 0, 255 }, - /* old= r, write:xxx, read:xxx, close:add */ - { 0, 255 }, - /* old= r, write:xxx, read:xxx, close:del */ - { 0, 255 }, - /* old= r, write:xxx, read:xxx, close:xxx */ - { 0, 255 }, - /* old= w, write: 0, read: 0, close: 0 */ - { 0, 0 }, - /* old= w, write: 0, read: 0, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= w, write: 0, read: 0, close:del */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= w, write: 0, read: 0, close:xxx */ - { 0, 255 }, - /* old= w, write: 0, read:add, close: 0 */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= w, write: 0, read:add, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= w, write: 0, read:add, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= w, write: 0, read:add, close:xxx */ - { 0, 255 }, - /* old= w, write: 0, read:del, close: 0 */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= w, write: 0, read:del, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= w, write: 0, read:del, close:del */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= w, write: 0, read:del, close:xxx */ - { 0, 255 }, - /* old= w, write: 0, read:xxx, close: 0 */ - { 0, 255 }, - /* old= w, write: 0, read:xxx, close:add */ - { 0, 255 }, - /* old= w, write: 0, read:xxx, close:del */ - { 0, 255 }, - /* old= w, write: 0, read:xxx, close:xxx */ - { 0, 255 }, - /* old= w, write:add, read: 0, close: 0 */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= w, write:add, read: 0, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= w, write:add, read: 0, close:del */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= w, write:add, read: 0, close:xxx */ - { 0, 255 }, - /* old= w, write:add, read:add, close: 0 */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= w, write:add, read:add, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= w, write:add, read:add, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= w, write:add, read:add, close:xxx */ - { 0, 255 }, - /* old= w, write:add, read:del, close: 0 */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= w, write:add, read:del, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= w, write:add, read:del, close:del */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= w, write:add, read:del, close:xxx */ - { 0, 255 }, - /* old= w, write:add, read:xxx, close: 0 */ - { 0, 255 }, - /* old= w, write:add, read:xxx, close:add */ - { 0, 255 }, - /* old= w, write:add, read:xxx, close:del */ - { 0, 255 }, - /* old= w, write:add, read:xxx, close:xxx */ - { 0, 255 }, - /* old= w, write:del, read: 0, close: 0 */ - { EPOLLOUT, EPOLL_CTL_DEL }, - /* old= w, write:del, read: 0, close:add */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= w, write:del, read: 0, close:del */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= w, write:del, read: 0, close:xxx */ - { 0, 255 }, - /* old= w, write:del, read:add, close: 0 */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= w, write:del, read:add, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= w, write:del, read:add, close:del */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= w, write:del, read:add, close:xxx */ - { 0, 255 }, - /* old= w, write:del, read:del, close: 0 */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_DEL }, - /* old= w, write:del, read:del, close:add */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= w, write:del, read:del, close:del */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= w, write:del, read:del, close:xxx */ - { 0, 255 }, - /* old= w, write:del, read:xxx, close: 0 */ - { 0, 255 }, - /* old= w, write:del, read:xxx, close:add */ - { 0, 255 }, - /* old= w, write:del, read:xxx, close:del */ - { 0, 255 }, - /* old= w, write:del, read:xxx, close:xxx */ - { 0, 255 }, - /* old= w, write:xxx, read: 0, close: 0 */ - { 0, 255 }, - /* old= w, write:xxx, read: 0, close:add */ - { 0, 255 }, - /* old= w, write:xxx, read: 0, close:del */ - { 0, 255 }, - /* old= w, write:xxx, read: 0, close:xxx */ - { 0, 255 }, - /* old= w, write:xxx, read:add, close: 0 */ - { 0, 255 }, - /* old= w, write:xxx, read:add, close:add */ - { 0, 255 }, - /* old= w, write:xxx, read:add, close:del */ - { 0, 255 }, - /* old= w, write:xxx, read:add, close:xxx */ - { 0, 255 }, - /* old= w, write:xxx, read:del, close: 0 */ - { 0, 255 }, - /* old= w, write:xxx, read:del, close:add */ - { 0, 255 }, - /* old= w, write:xxx, read:del, close:del */ - { 0, 255 }, - /* old= w, write:xxx, read:del, close:xxx */ - { 0, 255 }, - /* old= w, write:xxx, read:xxx, close: 0 */ - { 0, 255 }, - /* old= w, write:xxx, read:xxx, close:add */ - { 0, 255 }, - /* old= w, write:xxx, read:xxx, close:del */ - { 0, 255 }, - /* old= w, write:xxx, read:xxx, close:xxx */ - { 0, 255 }, - /* old= rw, write: 0, read: 0, close: 0 */ - { 0, 0 }, - /* old= rw, write: 0, read: 0, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= rw, write: 0, read: 0, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= rw, write: 0, read: 0, close:xxx */ - { 0, 255 }, - /* old= rw, write: 0, read:add, close: 0 */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= rw, write: 0, read:add, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= rw, write: 0, read:add, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= rw, write: 0, read:add, close:xxx */ - { 0, 255 }, - /* old= rw, write: 0, read:del, close: 0 */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= rw, write: 0, read:del, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= rw, write: 0, read:del, close:del */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= rw, write: 0, read:del, close:xxx */ - { 0, 255 }, - /* old= rw, write: 0, read:xxx, close: 0 */ - { 0, 255 }, - /* old= rw, write: 0, read:xxx, close:add */ - { 0, 255 }, - /* old= rw, write: 0, read:xxx, close:del */ - { 0, 255 }, - /* old= rw, write: 0, read:xxx, close:xxx */ - { 0, 255 }, - /* old= rw, write:add, read: 0, close: 0 */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= rw, write:add, read: 0, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= rw, write:add, read: 0, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= rw, write:add, read: 0, close:xxx */ - { 0, 255 }, - /* old= rw, write:add, read:add, close: 0 */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= rw, write:add, read:add, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= rw, write:add, read:add, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= rw, write:add, read:add, close:xxx */ - { 0, 255 }, - /* old= rw, write:add, read:del, close: 0 */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= rw, write:add, read:del, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= rw, write:add, read:del, close:del */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= rw, write:add, read:del, close:xxx */ - { 0, 255 }, - /* old= rw, write:add, read:xxx, close: 0 */ - { 0, 255 }, - /* old= rw, write:add, read:xxx, close:add */ - { 0, 255 }, - /* old= rw, write:add, read:xxx, close:del */ - { 0, 255 }, - /* old= rw, write:add, read:xxx, close:xxx */ - { 0, 255 }, - /* old= rw, write:del, read: 0, close: 0 */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= rw, write:del, read: 0, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= rw, write:del, read: 0, close:del */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= rw, write:del, read: 0, close:xxx */ - { 0, 255 }, - /* old= rw, write:del, read:add, close: 0 */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= rw, write:del, read:add, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= rw, write:del, read:add, close:del */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= rw, write:del, read:add, close:xxx */ - { 0, 255 }, - /* old= rw, write:del, read:del, close: 0 */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_DEL }, - /* old= rw, write:del, read:del, close:add */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= rw, write:del, read:del, close:del */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= rw, write:del, read:del, close:xxx */ - { 0, 255 }, - /* old= rw, write:del, read:xxx, close: 0 */ - { 0, 255 }, - /* old= rw, write:del, read:xxx, close:add */ - { 0, 255 }, - /* old= rw, write:del, read:xxx, close:del */ - { 0, 255 }, - /* old= rw, write:del, read:xxx, close:xxx */ - { 0, 255 }, - /* old= rw, write:xxx, read: 0, close: 0 */ - { 0, 255 }, - /* old= rw, write:xxx, read: 0, close:add */ - { 0, 255 }, - /* old= rw, write:xxx, read: 0, close:del */ - { 0, 255 }, - /* old= rw, write:xxx, read: 0, close:xxx */ - { 0, 255 }, - /* old= rw, write:xxx, read:add, close: 0 */ - { 0, 255 }, - /* old= rw, write:xxx, read:add, close:add */ - { 0, 255 }, - /* old= rw, write:xxx, read:add, close:del */ - { 0, 255 }, - /* old= rw, write:xxx, read:add, close:xxx */ - { 0, 255 }, - /* old= rw, write:xxx, read:del, close: 0 */ - { 0, 255 }, - /* old= rw, write:xxx, read:del, close:add */ - { 0, 255 }, - /* old= rw, write:xxx, read:del, close:del */ - { 0, 255 }, - /* old= rw, write:xxx, read:del, close:xxx */ - { 0, 255 }, - /* old= rw, write:xxx, read:xxx, close: 0 */ - { 0, 255 }, - /* old= rw, write:xxx, read:xxx, close:add */ - { 0, 255 }, - /* old= rw, write:xxx, read:xxx, close:del */ - { 0, 255 }, - /* old= rw, write:xxx, read:xxx, close:xxx */ - { 0, 255 }, - /* old= c, write: 0, read: 0, close: 0 */ - { 0, 0 }, - /* old= c, write: 0, read: 0, close:add */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write: 0, read: 0, close:del */ - { EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= c, write: 0, read: 0, close:xxx */ - { 0, 255 }, - /* old= c, write: 0, read:add, close: 0 */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write: 0, read:add, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write: 0, read:add, close:del */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= c, write: 0, read:add, close:xxx */ - { 0, 255 }, - /* old= c, write: 0, read:del, close: 0 */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write: 0, read:del, close:add */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write: 0, read:del, close:del */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= c, write: 0, read:del, close:xxx */ - { 0, 255 }, - /* old= c, write: 0, read:xxx, close: 0 */ - { 0, 255 }, - /* old= c, write: 0, read:xxx, close:add */ - { 0, 255 }, - /* old= c, write: 0, read:xxx, close:del */ - { 0, 255 }, - /* old= c, write: 0, read:xxx, close:xxx */ - { 0, 255 }, - /* old= c, write:add, read: 0, close: 0 */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write:add, read: 0, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write:add, read: 0, close:del */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= c, write:add, read: 0, close:xxx */ - { 0, 255 }, - /* old= c, write:add, read:add, close: 0 */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write:add, read:add, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write:add, read:add, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= c, write:add, read:add, close:xxx */ - { 0, 255 }, - /* old= c, write:add, read:del, close: 0 */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write:add, read:del, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write:add, read:del, close:del */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= c, write:add, read:del, close:xxx */ - { 0, 255 }, - /* old= c, write:add, read:xxx, close: 0 */ - { 0, 255 }, - /* old= c, write:add, read:xxx, close:add */ - { 0, 255 }, - /* old= c, write:add, read:xxx, close:del */ - { 0, 255 }, - /* old= c, write:add, read:xxx, close:xxx */ - { 0, 255 }, - /* old= c, write:del, read: 0, close: 0 */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write:del, read: 0, close:add */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write:del, read: 0, close:del */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= c, write:del, read: 0, close:xxx */ - { 0, 255 }, - /* old= c, write:del, read:add, close: 0 */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write:del, read:add, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write:del, read:add, close:del */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= c, write:del, read:add, close:xxx */ - { 0, 255 }, - /* old= c, write:del, read:del, close: 0 */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write:del, read:del, close:add */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= c, write:del, read:del, close:del */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= c, write:del, read:del, close:xxx */ - { 0, 255 }, - /* old= c, write:del, read:xxx, close: 0 */ - { 0, 255 }, - /* old= c, write:del, read:xxx, close:add */ - { 0, 255 }, - /* old= c, write:del, read:xxx, close:del */ - { 0, 255 }, - /* old= c, write:del, read:xxx, close:xxx */ - { 0, 255 }, - /* old= c, write:xxx, read: 0, close: 0 */ - { 0, 255 }, - /* old= c, write:xxx, read: 0, close:add */ - { 0, 255 }, - /* old= c, write:xxx, read: 0, close:del */ - { 0, 255 }, - /* old= c, write:xxx, read: 0, close:xxx */ - { 0, 255 }, - /* old= c, write:xxx, read:add, close: 0 */ - { 0, 255 }, - /* old= c, write:xxx, read:add, close:add */ - { 0, 255 }, - /* old= c, write:xxx, read:add, close:del */ - { 0, 255 }, - /* old= c, write:xxx, read:add, close:xxx */ - { 0, 255 }, - /* old= c, write:xxx, read:del, close: 0 */ - { 0, 255 }, - /* old= c, write:xxx, read:del, close:add */ - { 0, 255 }, - /* old= c, write:xxx, read:del, close:del */ - { 0, 255 }, - /* old= c, write:xxx, read:del, close:xxx */ - { 0, 255 }, - /* old= c, write:xxx, read:xxx, close: 0 */ - { 0, 255 }, - /* old= c, write:xxx, read:xxx, close:add */ - { 0, 255 }, - /* old= c, write:xxx, read:xxx, close:del */ - { 0, 255 }, - /* old= c, write:xxx, read:xxx, close:xxx */ - { 0, 255 }, - /* old= cr, write: 0, read: 0, close: 0 */ - { 0, 0 }, - /* old= cr, write: 0, read: 0, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write: 0, read: 0, close:del */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= cr, write: 0, read: 0, close:xxx */ - { 0, 255 }, - /* old= cr, write: 0, read:add, close: 0 */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write: 0, read:add, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write: 0, read:add, close:del */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= cr, write: 0, read:add, close:xxx */ - { 0, 255 }, - /* old= cr, write: 0, read:del, close: 0 */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write: 0, read:del, close:add */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write: 0, read:del, close:del */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= cr, write: 0, read:del, close:xxx */ - { 0, 255 }, - /* old= cr, write: 0, read:xxx, close: 0 */ - { 0, 255 }, - /* old= cr, write: 0, read:xxx, close:add */ - { 0, 255 }, - /* old= cr, write: 0, read:xxx, close:del */ - { 0, 255 }, - /* old= cr, write: 0, read:xxx, close:xxx */ - { 0, 255 }, - /* old= cr, write:add, read: 0, close: 0 */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write:add, read: 0, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write:add, read: 0, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= cr, write:add, read: 0, close:xxx */ - { 0, 255 }, - /* old= cr, write:add, read:add, close: 0 */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write:add, read:add, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write:add, read:add, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= cr, write:add, read:add, close:xxx */ - { 0, 255 }, - /* old= cr, write:add, read:del, close: 0 */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write:add, read:del, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write:add, read:del, close:del */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= cr, write:add, read:del, close:xxx */ - { 0, 255 }, - /* old= cr, write:add, read:xxx, close: 0 */ - { 0, 255 }, - /* old= cr, write:add, read:xxx, close:add */ - { 0, 255 }, - /* old= cr, write:add, read:xxx, close:del */ - { 0, 255 }, - /* old= cr, write:add, read:xxx, close:xxx */ - { 0, 255 }, - /* old= cr, write:del, read: 0, close: 0 */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write:del, read: 0, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write:del, read: 0, close:del */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= cr, write:del, read: 0, close:xxx */ - { 0, 255 }, - /* old= cr, write:del, read:add, close: 0 */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write:del, read:add, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write:del, read:add, close:del */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= cr, write:del, read:add, close:xxx */ - { 0, 255 }, - /* old= cr, write:del, read:del, close: 0 */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write:del, read:del, close:add */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cr, write:del, read:del, close:del */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= cr, write:del, read:del, close:xxx */ - { 0, 255 }, - /* old= cr, write:del, read:xxx, close: 0 */ - { 0, 255 }, - /* old= cr, write:del, read:xxx, close:add */ - { 0, 255 }, - /* old= cr, write:del, read:xxx, close:del */ - { 0, 255 }, - /* old= cr, write:del, read:xxx, close:xxx */ - { 0, 255 }, - /* old= cr, write:xxx, read: 0, close: 0 */ - { 0, 255 }, - /* old= cr, write:xxx, read: 0, close:add */ - { 0, 255 }, - /* old= cr, write:xxx, read: 0, close:del */ - { 0, 255 }, - /* old= cr, write:xxx, read: 0, close:xxx */ - { 0, 255 }, - /* old= cr, write:xxx, read:add, close: 0 */ - { 0, 255 }, - /* old= cr, write:xxx, read:add, close:add */ - { 0, 255 }, - /* old= cr, write:xxx, read:add, close:del */ - { 0, 255 }, - /* old= cr, write:xxx, read:add, close:xxx */ - { 0, 255 }, - /* old= cr, write:xxx, read:del, close: 0 */ - { 0, 255 }, - /* old= cr, write:xxx, read:del, close:add */ - { 0, 255 }, - /* old= cr, write:xxx, read:del, close:del */ - { 0, 255 }, - /* old= cr, write:xxx, read:del, close:xxx */ - { 0, 255 }, - /* old= cr, write:xxx, read:xxx, close: 0 */ - { 0, 255 }, - /* old= cr, write:xxx, read:xxx, close:add */ - { 0, 255 }, - /* old= cr, write:xxx, read:xxx, close:del */ - { 0, 255 }, - /* old= cr, write:xxx, read:xxx, close:xxx */ - { 0, 255 }, - /* old= cw, write: 0, read: 0, close: 0 */ - { 0, 0 }, - /* old= cw, write: 0, read: 0, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write: 0, read: 0, close:del */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= cw, write: 0, read: 0, close:xxx */ - { 0, 255 }, - /* old= cw, write: 0, read:add, close: 0 */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write: 0, read:add, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write: 0, read:add, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= cw, write: 0, read:add, close:xxx */ - { 0, 255 }, - /* old= cw, write: 0, read:del, close: 0 */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write: 0, read:del, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write: 0, read:del, close:del */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= cw, write: 0, read:del, close:xxx */ - { 0, 255 }, - /* old= cw, write: 0, read:xxx, close: 0 */ - { 0, 255 }, - /* old= cw, write: 0, read:xxx, close:add */ - { 0, 255 }, - /* old= cw, write: 0, read:xxx, close:del */ - { 0, 255 }, - /* old= cw, write: 0, read:xxx, close:xxx */ - { 0, 255 }, - /* old= cw, write:add, read: 0, close: 0 */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write:add, read: 0, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write:add, read: 0, close:del */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= cw, write:add, read: 0, close:xxx */ - { 0, 255 }, - /* old= cw, write:add, read:add, close: 0 */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write:add, read:add, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write:add, read:add, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old= cw, write:add, read:add, close:xxx */ - { 0, 255 }, - /* old= cw, write:add, read:del, close: 0 */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write:add, read:del, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write:add, read:del, close:del */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old= cw, write:add, read:del, close:xxx */ - { 0, 255 }, - /* old= cw, write:add, read:xxx, close: 0 */ - { 0, 255 }, - /* old= cw, write:add, read:xxx, close:add */ - { 0, 255 }, - /* old= cw, write:add, read:xxx, close:del */ - { 0, 255 }, - /* old= cw, write:add, read:xxx, close:xxx */ - { 0, 255 }, - /* old= cw, write:del, read: 0, close: 0 */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write:del, read: 0, close:add */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write:del, read: 0, close:del */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= cw, write:del, read: 0, close:xxx */ - { 0, 255 }, - /* old= cw, write:del, read:add, close: 0 */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write:del, read:add, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write:del, read:add, close:del */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old= cw, write:del, read:add, close:xxx */ - { 0, 255 }, - /* old= cw, write:del, read:del, close: 0 */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write:del, read:del, close:add */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old= cw, write:del, read:del, close:del */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old= cw, write:del, read:del, close:xxx */ - { 0, 255 }, - /* old= cw, write:del, read:xxx, close: 0 */ - { 0, 255 }, - /* old= cw, write:del, read:xxx, close:add */ - { 0, 255 }, - /* old= cw, write:del, read:xxx, close:del */ - { 0, 255 }, - /* old= cw, write:del, read:xxx, close:xxx */ - { 0, 255 }, - /* old= cw, write:xxx, read: 0, close: 0 */ - { 0, 255 }, - /* old= cw, write:xxx, read: 0, close:add */ - { 0, 255 }, - /* old= cw, write:xxx, read: 0, close:del */ - { 0, 255 }, - /* old= cw, write:xxx, read: 0, close:xxx */ - { 0, 255 }, - /* old= cw, write:xxx, read:add, close: 0 */ - { 0, 255 }, - /* old= cw, write:xxx, read:add, close:add */ - { 0, 255 }, - /* old= cw, write:xxx, read:add, close:del */ - { 0, 255 }, - /* old= cw, write:xxx, read:add, close:xxx */ - { 0, 255 }, - /* old= cw, write:xxx, read:del, close: 0 */ - { 0, 255 }, - /* old= cw, write:xxx, read:del, close:add */ - { 0, 255 }, - /* old= cw, write:xxx, read:del, close:del */ - { 0, 255 }, - /* old= cw, write:xxx, read:del, close:xxx */ - { 0, 255 }, - /* old= cw, write:xxx, read:xxx, close: 0 */ - { 0, 255 }, - /* old= cw, write:xxx, read:xxx, close:add */ - { 0, 255 }, - /* old= cw, write:xxx, read:xxx, close:del */ - { 0, 255 }, - /* old= cw, write:xxx, read:xxx, close:xxx */ - { 0, 255 }, - /* old=crw, write: 0, read: 0, close: 0 */ - { 0, 0 }, - /* old=crw, write: 0, read: 0, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write: 0, read: 0, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old=crw, write: 0, read: 0, close:xxx */ - { 0, 255 }, - /* old=crw, write: 0, read:add, close: 0 */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write: 0, read:add, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write: 0, read:add, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old=crw, write: 0, read:add, close:xxx */ - { 0, 255 }, - /* old=crw, write: 0, read:del, close: 0 */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write: 0, read:del, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write: 0, read:del, close:del */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old=crw, write: 0, read:del, close:xxx */ - { 0, 255 }, - /* old=crw, write: 0, read:xxx, close: 0 */ - { 0, 255 }, - /* old=crw, write: 0, read:xxx, close:add */ - { 0, 255 }, - /* old=crw, write: 0, read:xxx, close:del */ - { 0, 255 }, - /* old=crw, write: 0, read:xxx, close:xxx */ - { 0, 255 }, - /* old=crw, write:add, read: 0, close: 0 */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write:add, read: 0, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write:add, read: 0, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old=crw, write:add, read: 0, close:xxx */ - { 0, 255 }, - /* old=crw, write:add, read:add, close: 0 */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write:add, read:add, close:add */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write:add, read:add, close:del */ - { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, - /* old=crw, write:add, read:add, close:xxx */ - { 0, 255 }, - /* old=crw, write:add, read:del, close: 0 */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write:add, read:del, close:add */ - { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write:add, read:del, close:del */ - { EPOLLOUT, EPOLL_CTL_MOD }, - /* old=crw, write:add, read:del, close:xxx */ - { 0, 255 }, - /* old=crw, write:add, read:xxx, close: 0 */ - { 0, 255 }, - /* old=crw, write:add, read:xxx, close:add */ - { 0, 255 }, - /* old=crw, write:add, read:xxx, close:del */ - { 0, 255 }, - /* old=crw, write:add, read:xxx, close:xxx */ - { 0, 255 }, - /* old=crw, write:del, read: 0, close: 0 */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write:del, read: 0, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write:del, read: 0, close:del */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old=crw, write:del, read: 0, close:xxx */ - { 0, 255 }, - /* old=crw, write:del, read:add, close: 0 */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write:del, read:add, close:add */ - { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write:del, read:add, close:del */ - { EPOLLIN, EPOLL_CTL_MOD }, - /* old=crw, write:del, read:add, close:xxx */ - { 0, 255 }, - /* old=crw, write:del, read:del, close: 0 */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write:del, read:del, close:add */ - { EPOLLRDHUP, EPOLL_CTL_MOD }, - /* old=crw, write:del, read:del, close:del */ - { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, - /* old=crw, write:del, read:del, close:xxx */ - { 0, 255 }, - /* old=crw, write:del, read:xxx, close: 0 */ - { 0, 255 }, - /* old=crw, write:del, read:xxx, close:add */ - { 0, 255 }, - /* old=crw, write:del, read:xxx, close:del */ - { 0, 255 }, - /* old=crw, write:del, read:xxx, close:xxx */ - { 0, 255 }, - /* old=crw, write:xxx, read: 0, close: 0 */ - { 0, 255 }, - /* old=crw, write:xxx, read: 0, close:add */ - { 0, 255 }, - /* old=crw, write:xxx, read: 0, close:del */ - { 0, 255 }, - /* old=crw, write:xxx, read: 0, close:xxx */ - { 0, 255 }, - /* old=crw, write:xxx, read:add, close: 0 */ - { 0, 255 }, - /* old=crw, write:xxx, read:add, close:add */ - { 0, 255 }, - /* old=crw, write:xxx, read:add, close:del */ - { 0, 255 }, - /* old=crw, write:xxx, read:add, close:xxx */ - { 0, 255 }, - /* old=crw, write:xxx, read:del, close: 0 */ - { 0, 255 }, - /* old=crw, write:xxx, read:del, close:add */ - { 0, 255 }, - /* old=crw, write:xxx, read:del, close:del */ - { 0, 255 }, - /* old=crw, write:xxx, read:del, close:xxx */ - { 0, 255 }, - /* old=crw, write:xxx, read:xxx, close: 0 */ - { 0, 255 }, - /* old=crw, write:xxx, read:xxx, close:add */ - { 0, 255 }, - /* old=crw, write:xxx, read:xxx, close:del */ - { 0, 255 }, - /* old=crw, write:xxx, read:xxx, close:xxx */ - { 0, 255 }, -}; - static int epoll_apply_one_change(struct event_base *base, struct epollop *epollop, @@ -1383,9 +251,9 @@ epoll_apply_one_change(struct event_base *base, int op, events = 0; int idx; - idx = INDEX(ch); - op = op_table[idx].op; - events = op_table[idx].events; + idx = EPOLL_OP_TABLE_INDEX(ch); + op = epoll_op_table[idx].op; + events = epoll_op_table[idx].events; if (!events) { EVUTIL_ASSERT(op == 0); diff --git a/epolltable-internal.h b/epolltable-internal.h new file mode 100644 index 0000000000..da30e0973a --- /dev/null +++ b/epolltable-internal.h @@ -0,0 +1,1166 @@ +/* + * Copyright (c) 2000-2007 Niels Provos + * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef EPOLLTABLE_INTERNAL_H_INCLUDED_ +#define EPOLLTABLE_INTERNAL_H_INCLUDED_ + +/* + Here are the values we're masking off to decide what operations to do. + Note that since EV_READ|EV_WRITE. + + Note also that this table is a little sparse, since ADD+DEL is + nonsensical ("xxx" in the list below.) + + Note also also that we are shifting old_events by only 5 bits, since + EV_READ is 2 and EV_WRITE is 4. + + The table was auto-generated with a python script, according to this + pseudocode:[*0] + + If either the read or the write change is add+del: + This is impossible; Set op==-1, events=0. + Else, if either the read or the write change is add: + Set events to 0. + If the read change is add, or + (the read change is not del, and ev_read is in old_events): + Add EPOLLIN to events. + If the write change is add, or + (the write change is not del, and ev_write is in old_events): + Add EPOLLOUT to events. + + If old_events is set: + Set op to EPOLL_CTL_MOD [*1,*2] + Else: + Set op to EPOLL_CTL_ADD [*3] + + Else, if the read or the write change is del: + Set op to EPOLL_CTL_DEL. + If the read change is del: + If the write change is del: + Set events to EPOLLIN|EPOLLOUT + Else if ev_write is in old_events: + Set events to EPOLLOUT + Set op to EPOLL_CTL_MOD + Else + Set events to EPOLLIN + Else: + {The write change is del.} + If ev_read is in old_events: + Set events to EPOLLIN + Set op to EPOLL_CTL_MOD + Else: + Set the events to EPOLLOUT + + Else: + There is no read or write change; set op to 0 and events to 0. + + The logic is a little tricky, since we had no events set on the fd before, + we need to set op="ADD" and set events=the events we want to add. If we + had any events set on the fd before, and we want any events to remain on + the fd, we need to say op="MOD" and set events=the events we want to + remain. But if we want to delete the last event, we say op="DEL" and + set events=(any non-null pointer). + + [*0] Actually, the Python script has gotten a bit more complicated, to + support EPOLLRDHUP. + + [*1] This MOD is only a guess. MOD might fail with ENOENT if the file was + closed and a new file was opened with the same fd. If so, we'll retry + with ADD. + + [*2] We can't replace this with a no-op even if old_events is the same as + the new events: if the file was closed and reopened, we need to retry + with an ADD. (We do a MOD in this case since "no change" is more + common than "close and reopen", so we'll usually wind up doing 1 + syscalls instead of 2.) + + [*3] This ADD is only a guess. There is a fun Linux kernel issue where if + you have two fds for the same file (via dup) and you ADD one to an + epfd, then close it, then re-create it with the same fd (via dup2 or an + unlucky dup), then try to ADD it again, you'll get an EEXIST, since the + struct epitem is not actually removed from the struct eventpoll until + the file itself is closed. + + EV_CHANGE_ADD==1 + EV_CHANGE_DEL==2 + EV_READ ==2 + EV_WRITE ==4 + EV_CLOSED ==0x80 + + Bit 0: close change is add + Bit 1: close change is del + Bit 2: read change is add + Bit 3: read change is del + Bit 4: write change is add + Bit 5: write change is del + Bit 6: old events had EV_READ + Bit 7: old events had EV_WRITE + Bit 8: old events had EV_CLOSED +*/ + +#define EPOLL_OP_TABLE_INDEX(c) \ + ( (((c)->close_change&(EV_CHANGE_ADD|EV_CHANGE_DEL))) | \ + (((c)->read_change&(EV_CHANGE_ADD|EV_CHANGE_DEL)) << 2) | \ + (((c)->write_change&(EV_CHANGE_ADD|EV_CHANGE_DEL)) << 4) | \ + (((c)->old_events&(EV_READ|EV_WRITE)) << 5) | \ + (((c)->old_events&(EV_CLOSED)) << 1) \ + ) + +#if EV_READ != 2 || EV_WRITE != 4 || EV_CLOSED != 0x80 || EV_CHANGE_ADD != 1 || EV_CHANGE_DEL != 2 +#error "Libevent's internals changed! Regenerate the op_table in epolltable-internal.h" +#endif + +static const struct operation { + int events; + int op; +} epoll_op_table[] = { + /* old= 0, write: 0, read: 0, close: 0 */ + { 0, 0 }, + /* old= 0, write: 0, read: 0, close:add */ + { EPOLLRDHUP, EPOLL_CTL_ADD }, + /* old= 0, write: 0, read: 0, close:del */ + { EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= 0, write: 0, read: 0, close:xxx */ + { 0, 255 }, + /* old= 0, write: 0, read:add, close: 0 */ + { EPOLLIN, EPOLL_CTL_ADD }, + /* old= 0, write: 0, read:add, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_ADD }, + /* old= 0, write: 0, read:add, close:del */ + { EPOLLIN, EPOLL_CTL_ADD }, + /* old= 0, write: 0, read:add, close:xxx */ + { 0, 255 }, + /* old= 0, write: 0, read:del, close: 0 */ + { EPOLLIN, EPOLL_CTL_DEL }, + /* old= 0, write: 0, read:del, close:add */ + { EPOLLRDHUP, EPOLL_CTL_ADD }, + /* old= 0, write: 0, read:del, close:del */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= 0, write: 0, read:del, close:xxx */ + { 0, 255 }, + /* old= 0, write: 0, read:xxx, close: 0 */ + { 0, 255 }, + /* old= 0, write: 0, read:xxx, close:add */ + { 0, 255 }, + /* old= 0, write: 0, read:xxx, close:del */ + { 0, 255 }, + /* old= 0, write: 0, read:xxx, close:xxx */ + { 0, 255 }, + /* old= 0, write:add, read: 0, close: 0 */ + { EPOLLOUT, EPOLL_CTL_ADD }, + /* old= 0, write:add, read: 0, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_ADD }, + /* old= 0, write:add, read: 0, close:del */ + { EPOLLOUT, EPOLL_CTL_ADD }, + /* old= 0, write:add, read: 0, close:xxx */ + { 0, 255 }, + /* old= 0, write:add, read:add, close: 0 */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_ADD }, + /* old= 0, write:add, read:add, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_ADD }, + /* old= 0, write:add, read:add, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_ADD }, + /* old= 0, write:add, read:add, close:xxx */ + { 0, 255 }, + /* old= 0, write:add, read:del, close: 0 */ + { EPOLLOUT, EPOLL_CTL_ADD }, + /* old= 0, write:add, read:del, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_ADD }, + /* old= 0, write:add, read:del, close:del */ + { EPOLLOUT, EPOLL_CTL_ADD }, + /* old= 0, write:add, read:del, close:xxx */ + { 0, 255 }, + /* old= 0, write:add, read:xxx, close: 0 */ + { 0, 255 }, + /* old= 0, write:add, read:xxx, close:add */ + { 0, 255 }, + /* old= 0, write:add, read:xxx, close:del */ + { 0, 255 }, + /* old= 0, write:add, read:xxx, close:xxx */ + { 0, 255 }, + /* old= 0, write:del, read: 0, close: 0 */ + { EPOLLOUT, EPOLL_CTL_DEL }, + /* old= 0, write:del, read: 0, close:add */ + { EPOLLRDHUP, EPOLL_CTL_ADD }, + /* old= 0, write:del, read: 0, close:del */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= 0, write:del, read: 0, close:xxx */ + { 0, 255 }, + /* old= 0, write:del, read:add, close: 0 */ + { EPOLLIN, EPOLL_CTL_ADD }, + /* old= 0, write:del, read:add, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_ADD }, + /* old= 0, write:del, read:add, close:del */ + { EPOLLIN, EPOLL_CTL_ADD }, + /* old= 0, write:del, read:add, close:xxx */ + { 0, 255 }, + /* old= 0, write:del, read:del, close: 0 */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_DEL }, + /* old= 0, write:del, read:del, close:add */ + { EPOLLRDHUP, EPOLL_CTL_ADD }, + /* old= 0, write:del, read:del, close:del */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= 0, write:del, read:del, close:xxx */ + { 0, 255 }, + /* old= 0, write:del, read:xxx, close: 0 */ + { 0, 255 }, + /* old= 0, write:del, read:xxx, close:add */ + { 0, 255 }, + /* old= 0, write:del, read:xxx, close:del */ + { 0, 255 }, + /* old= 0, write:del, read:xxx, close:xxx */ + { 0, 255 }, + /* old= 0, write:xxx, read: 0, close: 0 */ + { 0, 255 }, + /* old= 0, write:xxx, read: 0, close:add */ + { 0, 255 }, + /* old= 0, write:xxx, read: 0, close:del */ + { 0, 255 }, + /* old= 0, write:xxx, read: 0, close:xxx */ + { 0, 255 }, + /* old= 0, write:xxx, read:add, close: 0 */ + { 0, 255 }, + /* old= 0, write:xxx, read:add, close:add */ + { 0, 255 }, + /* old= 0, write:xxx, read:add, close:del */ + { 0, 255 }, + /* old= 0, write:xxx, read:add, close:xxx */ + { 0, 255 }, + /* old= 0, write:xxx, read:del, close: 0 */ + { 0, 255 }, + /* old= 0, write:xxx, read:del, close:add */ + { 0, 255 }, + /* old= 0, write:xxx, read:del, close:del */ + { 0, 255 }, + /* old= 0, write:xxx, read:del, close:xxx */ + { 0, 255 }, + /* old= 0, write:xxx, read:xxx, close: 0 */ + { 0, 255 }, + /* old= 0, write:xxx, read:xxx, close:add */ + { 0, 255 }, + /* old= 0, write:xxx, read:xxx, close:del */ + { 0, 255 }, + /* old= 0, write:xxx, read:xxx, close:xxx */ + { 0, 255 }, + /* old= r, write: 0, read: 0, close: 0 */ + { 0, 0 }, + /* old= r, write: 0, read: 0, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= r, write: 0, read: 0, close:del */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= r, write: 0, read: 0, close:xxx */ + { 0, 255 }, + /* old= r, write: 0, read:add, close: 0 */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= r, write: 0, read:add, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= r, write: 0, read:add, close:del */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= r, write: 0, read:add, close:xxx */ + { 0, 255 }, + /* old= r, write: 0, read:del, close: 0 */ + { EPOLLIN, EPOLL_CTL_DEL }, + /* old= r, write: 0, read:del, close:add */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= r, write: 0, read:del, close:del */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= r, write: 0, read:del, close:xxx */ + { 0, 255 }, + /* old= r, write: 0, read:xxx, close: 0 */ + { 0, 255 }, + /* old= r, write: 0, read:xxx, close:add */ + { 0, 255 }, + /* old= r, write: 0, read:xxx, close:del */ + { 0, 255 }, + /* old= r, write: 0, read:xxx, close:xxx */ + { 0, 255 }, + /* old= r, write:add, read: 0, close: 0 */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= r, write:add, read: 0, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= r, write:add, read: 0, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= r, write:add, read: 0, close:xxx */ + { 0, 255 }, + /* old= r, write:add, read:add, close: 0 */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= r, write:add, read:add, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= r, write:add, read:add, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= r, write:add, read:add, close:xxx */ + { 0, 255 }, + /* old= r, write:add, read:del, close: 0 */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= r, write:add, read:del, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= r, write:add, read:del, close:del */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= r, write:add, read:del, close:xxx */ + { 0, 255 }, + /* old= r, write:add, read:xxx, close: 0 */ + { 0, 255 }, + /* old= r, write:add, read:xxx, close:add */ + { 0, 255 }, + /* old= r, write:add, read:xxx, close:del */ + { 0, 255 }, + /* old= r, write:add, read:xxx, close:xxx */ + { 0, 255 }, + /* old= r, write:del, read: 0, close: 0 */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= r, write:del, read: 0, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= r, write:del, read: 0, close:del */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= r, write:del, read: 0, close:xxx */ + { 0, 255 }, + /* old= r, write:del, read:add, close: 0 */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= r, write:del, read:add, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= r, write:del, read:add, close:del */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= r, write:del, read:add, close:xxx */ + { 0, 255 }, + /* old= r, write:del, read:del, close: 0 */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_DEL }, + /* old= r, write:del, read:del, close:add */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= r, write:del, read:del, close:del */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= r, write:del, read:del, close:xxx */ + { 0, 255 }, + /* old= r, write:del, read:xxx, close: 0 */ + { 0, 255 }, + /* old= r, write:del, read:xxx, close:add */ + { 0, 255 }, + /* old= r, write:del, read:xxx, close:del */ + { 0, 255 }, + /* old= r, write:del, read:xxx, close:xxx */ + { 0, 255 }, + /* old= r, write:xxx, read: 0, close: 0 */ + { 0, 255 }, + /* old= r, write:xxx, read: 0, close:add */ + { 0, 255 }, + /* old= r, write:xxx, read: 0, close:del */ + { 0, 255 }, + /* old= r, write:xxx, read: 0, close:xxx */ + { 0, 255 }, + /* old= r, write:xxx, read:add, close: 0 */ + { 0, 255 }, + /* old= r, write:xxx, read:add, close:add */ + { 0, 255 }, + /* old= r, write:xxx, read:add, close:del */ + { 0, 255 }, + /* old= r, write:xxx, read:add, close:xxx */ + { 0, 255 }, + /* old= r, write:xxx, read:del, close: 0 */ + { 0, 255 }, + /* old= r, write:xxx, read:del, close:add */ + { 0, 255 }, + /* old= r, write:xxx, read:del, close:del */ + { 0, 255 }, + /* old= r, write:xxx, read:del, close:xxx */ + { 0, 255 }, + /* old= r, write:xxx, read:xxx, close: 0 */ + { 0, 255 }, + /* old= r, write:xxx, read:xxx, close:add */ + { 0, 255 }, + /* old= r, write:xxx, read:xxx, close:del */ + { 0, 255 }, + /* old= r, write:xxx, read:xxx, close:xxx */ + { 0, 255 }, + /* old= w, write: 0, read: 0, close: 0 */ + { 0, 0 }, + /* old= w, write: 0, read: 0, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= w, write: 0, read: 0, close:del */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= w, write: 0, read: 0, close:xxx */ + { 0, 255 }, + /* old= w, write: 0, read:add, close: 0 */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= w, write: 0, read:add, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= w, write: 0, read:add, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= w, write: 0, read:add, close:xxx */ + { 0, 255 }, + /* old= w, write: 0, read:del, close: 0 */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= w, write: 0, read:del, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= w, write: 0, read:del, close:del */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= w, write: 0, read:del, close:xxx */ + { 0, 255 }, + /* old= w, write: 0, read:xxx, close: 0 */ + { 0, 255 }, + /* old= w, write: 0, read:xxx, close:add */ + { 0, 255 }, + /* old= w, write: 0, read:xxx, close:del */ + { 0, 255 }, + /* old= w, write: 0, read:xxx, close:xxx */ + { 0, 255 }, + /* old= w, write:add, read: 0, close: 0 */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= w, write:add, read: 0, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= w, write:add, read: 0, close:del */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= w, write:add, read: 0, close:xxx */ + { 0, 255 }, + /* old= w, write:add, read:add, close: 0 */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= w, write:add, read:add, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= w, write:add, read:add, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= w, write:add, read:add, close:xxx */ + { 0, 255 }, + /* old= w, write:add, read:del, close: 0 */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= w, write:add, read:del, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= w, write:add, read:del, close:del */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= w, write:add, read:del, close:xxx */ + { 0, 255 }, + /* old= w, write:add, read:xxx, close: 0 */ + { 0, 255 }, + /* old= w, write:add, read:xxx, close:add */ + { 0, 255 }, + /* old= w, write:add, read:xxx, close:del */ + { 0, 255 }, + /* old= w, write:add, read:xxx, close:xxx */ + { 0, 255 }, + /* old= w, write:del, read: 0, close: 0 */ + { EPOLLOUT, EPOLL_CTL_DEL }, + /* old= w, write:del, read: 0, close:add */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= w, write:del, read: 0, close:del */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= w, write:del, read: 0, close:xxx */ + { 0, 255 }, + /* old= w, write:del, read:add, close: 0 */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= w, write:del, read:add, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= w, write:del, read:add, close:del */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= w, write:del, read:add, close:xxx */ + { 0, 255 }, + /* old= w, write:del, read:del, close: 0 */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_DEL }, + /* old= w, write:del, read:del, close:add */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= w, write:del, read:del, close:del */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= w, write:del, read:del, close:xxx */ + { 0, 255 }, + /* old= w, write:del, read:xxx, close: 0 */ + { 0, 255 }, + /* old= w, write:del, read:xxx, close:add */ + { 0, 255 }, + /* old= w, write:del, read:xxx, close:del */ + { 0, 255 }, + /* old= w, write:del, read:xxx, close:xxx */ + { 0, 255 }, + /* old= w, write:xxx, read: 0, close: 0 */ + { 0, 255 }, + /* old= w, write:xxx, read: 0, close:add */ + { 0, 255 }, + /* old= w, write:xxx, read: 0, close:del */ + { 0, 255 }, + /* old= w, write:xxx, read: 0, close:xxx */ + { 0, 255 }, + /* old= w, write:xxx, read:add, close: 0 */ + { 0, 255 }, + /* old= w, write:xxx, read:add, close:add */ + { 0, 255 }, + /* old= w, write:xxx, read:add, close:del */ + { 0, 255 }, + /* old= w, write:xxx, read:add, close:xxx */ + { 0, 255 }, + /* old= w, write:xxx, read:del, close: 0 */ + { 0, 255 }, + /* old= w, write:xxx, read:del, close:add */ + { 0, 255 }, + /* old= w, write:xxx, read:del, close:del */ + { 0, 255 }, + /* old= w, write:xxx, read:del, close:xxx */ + { 0, 255 }, + /* old= w, write:xxx, read:xxx, close: 0 */ + { 0, 255 }, + /* old= w, write:xxx, read:xxx, close:add */ + { 0, 255 }, + /* old= w, write:xxx, read:xxx, close:del */ + { 0, 255 }, + /* old= w, write:xxx, read:xxx, close:xxx */ + { 0, 255 }, + /* old= rw, write: 0, read: 0, close: 0 */ + { 0, 0 }, + /* old= rw, write: 0, read: 0, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= rw, write: 0, read: 0, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= rw, write: 0, read: 0, close:xxx */ + { 0, 255 }, + /* old= rw, write: 0, read:add, close: 0 */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= rw, write: 0, read:add, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= rw, write: 0, read:add, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= rw, write: 0, read:add, close:xxx */ + { 0, 255 }, + /* old= rw, write: 0, read:del, close: 0 */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= rw, write: 0, read:del, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= rw, write: 0, read:del, close:del */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= rw, write: 0, read:del, close:xxx */ + { 0, 255 }, + /* old= rw, write: 0, read:xxx, close: 0 */ + { 0, 255 }, + /* old= rw, write: 0, read:xxx, close:add */ + { 0, 255 }, + /* old= rw, write: 0, read:xxx, close:del */ + { 0, 255 }, + /* old= rw, write: 0, read:xxx, close:xxx */ + { 0, 255 }, + /* old= rw, write:add, read: 0, close: 0 */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= rw, write:add, read: 0, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= rw, write:add, read: 0, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= rw, write:add, read: 0, close:xxx */ + { 0, 255 }, + /* old= rw, write:add, read:add, close: 0 */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= rw, write:add, read:add, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= rw, write:add, read:add, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= rw, write:add, read:add, close:xxx */ + { 0, 255 }, + /* old= rw, write:add, read:del, close: 0 */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= rw, write:add, read:del, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= rw, write:add, read:del, close:del */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= rw, write:add, read:del, close:xxx */ + { 0, 255 }, + /* old= rw, write:add, read:xxx, close: 0 */ + { 0, 255 }, + /* old= rw, write:add, read:xxx, close:add */ + { 0, 255 }, + /* old= rw, write:add, read:xxx, close:del */ + { 0, 255 }, + /* old= rw, write:add, read:xxx, close:xxx */ + { 0, 255 }, + /* old= rw, write:del, read: 0, close: 0 */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= rw, write:del, read: 0, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= rw, write:del, read: 0, close:del */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= rw, write:del, read: 0, close:xxx */ + { 0, 255 }, + /* old= rw, write:del, read:add, close: 0 */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= rw, write:del, read:add, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= rw, write:del, read:add, close:del */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= rw, write:del, read:add, close:xxx */ + { 0, 255 }, + /* old= rw, write:del, read:del, close: 0 */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_DEL }, + /* old= rw, write:del, read:del, close:add */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= rw, write:del, read:del, close:del */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= rw, write:del, read:del, close:xxx */ + { 0, 255 }, + /* old= rw, write:del, read:xxx, close: 0 */ + { 0, 255 }, + /* old= rw, write:del, read:xxx, close:add */ + { 0, 255 }, + /* old= rw, write:del, read:xxx, close:del */ + { 0, 255 }, + /* old= rw, write:del, read:xxx, close:xxx */ + { 0, 255 }, + /* old= rw, write:xxx, read: 0, close: 0 */ + { 0, 255 }, + /* old= rw, write:xxx, read: 0, close:add */ + { 0, 255 }, + /* old= rw, write:xxx, read: 0, close:del */ + { 0, 255 }, + /* old= rw, write:xxx, read: 0, close:xxx */ + { 0, 255 }, + /* old= rw, write:xxx, read:add, close: 0 */ + { 0, 255 }, + /* old= rw, write:xxx, read:add, close:add */ + { 0, 255 }, + /* old= rw, write:xxx, read:add, close:del */ + { 0, 255 }, + /* old= rw, write:xxx, read:add, close:xxx */ + { 0, 255 }, + /* old= rw, write:xxx, read:del, close: 0 */ + { 0, 255 }, + /* old= rw, write:xxx, read:del, close:add */ + { 0, 255 }, + /* old= rw, write:xxx, read:del, close:del */ + { 0, 255 }, + /* old= rw, write:xxx, read:del, close:xxx */ + { 0, 255 }, + /* old= rw, write:xxx, read:xxx, close: 0 */ + { 0, 255 }, + /* old= rw, write:xxx, read:xxx, close:add */ + { 0, 255 }, + /* old= rw, write:xxx, read:xxx, close:del */ + { 0, 255 }, + /* old= rw, write:xxx, read:xxx, close:xxx */ + { 0, 255 }, + /* old= c, write: 0, read: 0, close: 0 */ + { 0, 0 }, + /* old= c, write: 0, read: 0, close:add */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write: 0, read: 0, close:del */ + { EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= c, write: 0, read: 0, close:xxx */ + { 0, 255 }, + /* old= c, write: 0, read:add, close: 0 */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write: 0, read:add, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write: 0, read:add, close:del */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= c, write: 0, read:add, close:xxx */ + { 0, 255 }, + /* old= c, write: 0, read:del, close: 0 */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write: 0, read:del, close:add */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write: 0, read:del, close:del */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= c, write: 0, read:del, close:xxx */ + { 0, 255 }, + /* old= c, write: 0, read:xxx, close: 0 */ + { 0, 255 }, + /* old= c, write: 0, read:xxx, close:add */ + { 0, 255 }, + /* old= c, write: 0, read:xxx, close:del */ + { 0, 255 }, + /* old= c, write: 0, read:xxx, close:xxx */ + { 0, 255 }, + /* old= c, write:add, read: 0, close: 0 */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write:add, read: 0, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write:add, read: 0, close:del */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= c, write:add, read: 0, close:xxx */ + { 0, 255 }, + /* old= c, write:add, read:add, close: 0 */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write:add, read:add, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write:add, read:add, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= c, write:add, read:add, close:xxx */ + { 0, 255 }, + /* old= c, write:add, read:del, close: 0 */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write:add, read:del, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write:add, read:del, close:del */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= c, write:add, read:del, close:xxx */ + { 0, 255 }, + /* old= c, write:add, read:xxx, close: 0 */ + { 0, 255 }, + /* old= c, write:add, read:xxx, close:add */ + { 0, 255 }, + /* old= c, write:add, read:xxx, close:del */ + { 0, 255 }, + /* old= c, write:add, read:xxx, close:xxx */ + { 0, 255 }, + /* old= c, write:del, read: 0, close: 0 */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write:del, read: 0, close:add */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write:del, read: 0, close:del */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= c, write:del, read: 0, close:xxx */ + { 0, 255 }, + /* old= c, write:del, read:add, close: 0 */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write:del, read:add, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write:del, read:add, close:del */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= c, write:del, read:add, close:xxx */ + { 0, 255 }, + /* old= c, write:del, read:del, close: 0 */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write:del, read:del, close:add */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= c, write:del, read:del, close:del */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= c, write:del, read:del, close:xxx */ + { 0, 255 }, + /* old= c, write:del, read:xxx, close: 0 */ + { 0, 255 }, + /* old= c, write:del, read:xxx, close:add */ + { 0, 255 }, + /* old= c, write:del, read:xxx, close:del */ + { 0, 255 }, + /* old= c, write:del, read:xxx, close:xxx */ + { 0, 255 }, + /* old= c, write:xxx, read: 0, close: 0 */ + { 0, 255 }, + /* old= c, write:xxx, read: 0, close:add */ + { 0, 255 }, + /* old= c, write:xxx, read: 0, close:del */ + { 0, 255 }, + /* old= c, write:xxx, read: 0, close:xxx */ + { 0, 255 }, + /* old= c, write:xxx, read:add, close: 0 */ + { 0, 255 }, + /* old= c, write:xxx, read:add, close:add */ + { 0, 255 }, + /* old= c, write:xxx, read:add, close:del */ + { 0, 255 }, + /* old= c, write:xxx, read:add, close:xxx */ + { 0, 255 }, + /* old= c, write:xxx, read:del, close: 0 */ + { 0, 255 }, + /* old= c, write:xxx, read:del, close:add */ + { 0, 255 }, + /* old= c, write:xxx, read:del, close:del */ + { 0, 255 }, + /* old= c, write:xxx, read:del, close:xxx */ + { 0, 255 }, + /* old= c, write:xxx, read:xxx, close: 0 */ + { 0, 255 }, + /* old= c, write:xxx, read:xxx, close:add */ + { 0, 255 }, + /* old= c, write:xxx, read:xxx, close:del */ + { 0, 255 }, + /* old= c, write:xxx, read:xxx, close:xxx */ + { 0, 255 }, + /* old= cr, write: 0, read: 0, close: 0 */ + { 0, 0 }, + /* old= cr, write: 0, read: 0, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write: 0, read: 0, close:del */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= cr, write: 0, read: 0, close:xxx */ + { 0, 255 }, + /* old= cr, write: 0, read:add, close: 0 */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write: 0, read:add, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write: 0, read:add, close:del */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= cr, write: 0, read:add, close:xxx */ + { 0, 255 }, + /* old= cr, write: 0, read:del, close: 0 */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write: 0, read:del, close:add */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write: 0, read:del, close:del */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= cr, write: 0, read:del, close:xxx */ + { 0, 255 }, + /* old= cr, write: 0, read:xxx, close: 0 */ + { 0, 255 }, + /* old= cr, write: 0, read:xxx, close:add */ + { 0, 255 }, + /* old= cr, write: 0, read:xxx, close:del */ + { 0, 255 }, + /* old= cr, write: 0, read:xxx, close:xxx */ + { 0, 255 }, + /* old= cr, write:add, read: 0, close: 0 */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write:add, read: 0, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write:add, read: 0, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= cr, write:add, read: 0, close:xxx */ + { 0, 255 }, + /* old= cr, write:add, read:add, close: 0 */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write:add, read:add, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write:add, read:add, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= cr, write:add, read:add, close:xxx */ + { 0, 255 }, + /* old= cr, write:add, read:del, close: 0 */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write:add, read:del, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write:add, read:del, close:del */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= cr, write:add, read:del, close:xxx */ + { 0, 255 }, + /* old= cr, write:add, read:xxx, close: 0 */ + { 0, 255 }, + /* old= cr, write:add, read:xxx, close:add */ + { 0, 255 }, + /* old= cr, write:add, read:xxx, close:del */ + { 0, 255 }, + /* old= cr, write:add, read:xxx, close:xxx */ + { 0, 255 }, + /* old= cr, write:del, read: 0, close: 0 */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write:del, read: 0, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write:del, read: 0, close:del */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= cr, write:del, read: 0, close:xxx */ + { 0, 255 }, + /* old= cr, write:del, read:add, close: 0 */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write:del, read:add, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write:del, read:add, close:del */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= cr, write:del, read:add, close:xxx */ + { 0, 255 }, + /* old= cr, write:del, read:del, close: 0 */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write:del, read:del, close:add */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cr, write:del, read:del, close:del */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= cr, write:del, read:del, close:xxx */ + { 0, 255 }, + /* old= cr, write:del, read:xxx, close: 0 */ + { 0, 255 }, + /* old= cr, write:del, read:xxx, close:add */ + { 0, 255 }, + /* old= cr, write:del, read:xxx, close:del */ + { 0, 255 }, + /* old= cr, write:del, read:xxx, close:xxx */ + { 0, 255 }, + /* old= cr, write:xxx, read: 0, close: 0 */ + { 0, 255 }, + /* old= cr, write:xxx, read: 0, close:add */ + { 0, 255 }, + /* old= cr, write:xxx, read: 0, close:del */ + { 0, 255 }, + /* old= cr, write:xxx, read: 0, close:xxx */ + { 0, 255 }, + /* old= cr, write:xxx, read:add, close: 0 */ + { 0, 255 }, + /* old= cr, write:xxx, read:add, close:add */ + { 0, 255 }, + /* old= cr, write:xxx, read:add, close:del */ + { 0, 255 }, + /* old= cr, write:xxx, read:add, close:xxx */ + { 0, 255 }, + /* old= cr, write:xxx, read:del, close: 0 */ + { 0, 255 }, + /* old= cr, write:xxx, read:del, close:add */ + { 0, 255 }, + /* old= cr, write:xxx, read:del, close:del */ + { 0, 255 }, + /* old= cr, write:xxx, read:del, close:xxx */ + { 0, 255 }, + /* old= cr, write:xxx, read:xxx, close: 0 */ + { 0, 255 }, + /* old= cr, write:xxx, read:xxx, close:add */ + { 0, 255 }, + /* old= cr, write:xxx, read:xxx, close:del */ + { 0, 255 }, + /* old= cr, write:xxx, read:xxx, close:xxx */ + { 0, 255 }, + /* old= cw, write: 0, read: 0, close: 0 */ + { 0, 0 }, + /* old= cw, write: 0, read: 0, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write: 0, read: 0, close:del */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= cw, write: 0, read: 0, close:xxx */ + { 0, 255 }, + /* old= cw, write: 0, read:add, close: 0 */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write: 0, read:add, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write: 0, read:add, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= cw, write: 0, read:add, close:xxx */ + { 0, 255 }, + /* old= cw, write: 0, read:del, close: 0 */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write: 0, read:del, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write: 0, read:del, close:del */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= cw, write: 0, read:del, close:xxx */ + { 0, 255 }, + /* old= cw, write: 0, read:xxx, close: 0 */ + { 0, 255 }, + /* old= cw, write: 0, read:xxx, close:add */ + { 0, 255 }, + /* old= cw, write: 0, read:xxx, close:del */ + { 0, 255 }, + /* old= cw, write: 0, read:xxx, close:xxx */ + { 0, 255 }, + /* old= cw, write:add, read: 0, close: 0 */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write:add, read: 0, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write:add, read: 0, close:del */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= cw, write:add, read: 0, close:xxx */ + { 0, 255 }, + /* old= cw, write:add, read:add, close: 0 */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write:add, read:add, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write:add, read:add, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old= cw, write:add, read:add, close:xxx */ + { 0, 255 }, + /* old= cw, write:add, read:del, close: 0 */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write:add, read:del, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write:add, read:del, close:del */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old= cw, write:add, read:del, close:xxx */ + { 0, 255 }, + /* old= cw, write:add, read:xxx, close: 0 */ + { 0, 255 }, + /* old= cw, write:add, read:xxx, close:add */ + { 0, 255 }, + /* old= cw, write:add, read:xxx, close:del */ + { 0, 255 }, + /* old= cw, write:add, read:xxx, close:xxx */ + { 0, 255 }, + /* old= cw, write:del, read: 0, close: 0 */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write:del, read: 0, close:add */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write:del, read: 0, close:del */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= cw, write:del, read: 0, close:xxx */ + { 0, 255 }, + /* old= cw, write:del, read:add, close: 0 */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write:del, read:add, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write:del, read:add, close:del */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old= cw, write:del, read:add, close:xxx */ + { 0, 255 }, + /* old= cw, write:del, read:del, close: 0 */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write:del, read:del, close:add */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old= cw, write:del, read:del, close:del */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old= cw, write:del, read:del, close:xxx */ + { 0, 255 }, + /* old= cw, write:del, read:xxx, close: 0 */ + { 0, 255 }, + /* old= cw, write:del, read:xxx, close:add */ + { 0, 255 }, + /* old= cw, write:del, read:xxx, close:del */ + { 0, 255 }, + /* old= cw, write:del, read:xxx, close:xxx */ + { 0, 255 }, + /* old= cw, write:xxx, read: 0, close: 0 */ + { 0, 255 }, + /* old= cw, write:xxx, read: 0, close:add */ + { 0, 255 }, + /* old= cw, write:xxx, read: 0, close:del */ + { 0, 255 }, + /* old= cw, write:xxx, read: 0, close:xxx */ + { 0, 255 }, + /* old= cw, write:xxx, read:add, close: 0 */ + { 0, 255 }, + /* old= cw, write:xxx, read:add, close:add */ + { 0, 255 }, + /* old= cw, write:xxx, read:add, close:del */ + { 0, 255 }, + /* old= cw, write:xxx, read:add, close:xxx */ + { 0, 255 }, + /* old= cw, write:xxx, read:del, close: 0 */ + { 0, 255 }, + /* old= cw, write:xxx, read:del, close:add */ + { 0, 255 }, + /* old= cw, write:xxx, read:del, close:del */ + { 0, 255 }, + /* old= cw, write:xxx, read:del, close:xxx */ + { 0, 255 }, + /* old= cw, write:xxx, read:xxx, close: 0 */ + { 0, 255 }, + /* old= cw, write:xxx, read:xxx, close:add */ + { 0, 255 }, + /* old= cw, write:xxx, read:xxx, close:del */ + { 0, 255 }, + /* old= cw, write:xxx, read:xxx, close:xxx */ + { 0, 255 }, + /* old=crw, write: 0, read: 0, close: 0 */ + { 0, 0 }, + /* old=crw, write: 0, read: 0, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write: 0, read: 0, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old=crw, write: 0, read: 0, close:xxx */ + { 0, 255 }, + /* old=crw, write: 0, read:add, close: 0 */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write: 0, read:add, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write: 0, read:add, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old=crw, write: 0, read:add, close:xxx */ + { 0, 255 }, + /* old=crw, write: 0, read:del, close: 0 */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write: 0, read:del, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write: 0, read:del, close:del */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old=crw, write: 0, read:del, close:xxx */ + { 0, 255 }, + /* old=crw, write: 0, read:xxx, close: 0 */ + { 0, 255 }, + /* old=crw, write: 0, read:xxx, close:add */ + { 0, 255 }, + /* old=crw, write: 0, read:xxx, close:del */ + { 0, 255 }, + /* old=crw, write: 0, read:xxx, close:xxx */ + { 0, 255 }, + /* old=crw, write:add, read: 0, close: 0 */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write:add, read: 0, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write:add, read: 0, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old=crw, write:add, read: 0, close:xxx */ + { 0, 255 }, + /* old=crw, write:add, read:add, close: 0 */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write:add, read:add, close:add */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write:add, read:add, close:del */ + { EPOLLIN|EPOLLOUT, EPOLL_CTL_MOD }, + /* old=crw, write:add, read:add, close:xxx */ + { 0, 255 }, + /* old=crw, write:add, read:del, close: 0 */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write:add, read:del, close:add */ + { EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write:add, read:del, close:del */ + { EPOLLOUT, EPOLL_CTL_MOD }, + /* old=crw, write:add, read:del, close:xxx */ + { 0, 255 }, + /* old=crw, write:add, read:xxx, close: 0 */ + { 0, 255 }, + /* old=crw, write:add, read:xxx, close:add */ + { 0, 255 }, + /* old=crw, write:add, read:xxx, close:del */ + { 0, 255 }, + /* old=crw, write:add, read:xxx, close:xxx */ + { 0, 255 }, + /* old=crw, write:del, read: 0, close: 0 */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write:del, read: 0, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write:del, read: 0, close:del */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old=crw, write:del, read: 0, close:xxx */ + { 0, 255 }, + /* old=crw, write:del, read:add, close: 0 */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write:del, read:add, close:add */ + { EPOLLIN|EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write:del, read:add, close:del */ + { EPOLLIN, EPOLL_CTL_MOD }, + /* old=crw, write:del, read:add, close:xxx */ + { 0, 255 }, + /* old=crw, write:del, read:del, close: 0 */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write:del, read:del, close:add */ + { EPOLLRDHUP, EPOLL_CTL_MOD }, + /* old=crw, write:del, read:del, close:del */ + { EPOLLIN|EPOLLOUT|EPOLLRDHUP, EPOLL_CTL_DEL }, + /* old=crw, write:del, read:del, close:xxx */ + { 0, 255 }, + /* old=crw, write:del, read:xxx, close: 0 */ + { 0, 255 }, + /* old=crw, write:del, read:xxx, close:add */ + { 0, 255 }, + /* old=crw, write:del, read:xxx, close:del */ + { 0, 255 }, + /* old=crw, write:del, read:xxx, close:xxx */ + { 0, 255 }, + /* old=crw, write:xxx, read: 0, close: 0 */ + { 0, 255 }, + /* old=crw, write:xxx, read: 0, close:add */ + { 0, 255 }, + /* old=crw, write:xxx, read: 0, close:del */ + { 0, 255 }, + /* old=crw, write:xxx, read: 0, close:xxx */ + { 0, 255 }, + /* old=crw, write:xxx, read:add, close: 0 */ + { 0, 255 }, + /* old=crw, write:xxx, read:add, close:add */ + { 0, 255 }, + /* old=crw, write:xxx, read:add, close:del */ + { 0, 255 }, + /* old=crw, write:xxx, read:add, close:xxx */ + { 0, 255 }, + /* old=crw, write:xxx, read:del, close: 0 */ + { 0, 255 }, + /* old=crw, write:xxx, read:del, close:add */ + { 0, 255 }, + /* old=crw, write:xxx, read:del, close:del */ + { 0, 255 }, + /* old=crw, write:xxx, read:del, close:xxx */ + { 0, 255 }, + /* old=crw, write:xxx, read:xxx, close: 0 */ + { 0, 255 }, + /* old=crw, write:xxx, read:xxx, close:add */ + { 0, 255 }, + /* old=crw, write:xxx, read:xxx, close:del */ + { 0, 255 }, + /* old=crw, write:xxx, read:xxx, close:xxx */ + { 0, 255 }, +}; + +#endif