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https://github.com/moparisthebest/spdylay
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Abstract event polling function in EventPoll.
This commit is contained in:
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24aff9ac44
@ -78,6 +78,9 @@ fi
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AM_CONDITIONAL([HAVE_CUNIT], [ test "x${have_cunit}" = "xyes" ])
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AM_CONDITIONAL([HAVE_CUNIT], [ test "x${have_cunit}" = "xyes" ])
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AX_HAVE_EPOLL([have_epoll=yes], [have_epoll=no])
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AX_HAVE_EPOLL([have_epoll=yes], [have_epoll=no])
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if test "x${have_epoll}" = "xyes"; then
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AC_DEFINE([HAVE_EPOLL], [1], [Define to 1 if you have the `epoll`.])
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fi
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AM_CONDITIONAL([HAVE_EPOLL], [ test "x${have_epoll}" = "xyes" ])
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AM_CONDITIONAL([HAVE_EPOLL], [ test "x${have_epoll}" = "xyes" ])
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# openssl (for examples)
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# openssl (for examples)
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36
examples/EventPoll.h
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36
examples/EventPoll.h
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@ -0,0 +1,36 @@
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/*
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* Spdylay - SPDY Library
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*
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* Copyright (c) 2012 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef EVENT_POLL_H
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#define EVENT_POLL_H
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif // HAVE_CONFIG_H
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#ifdef HAVE_EPOLL
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# include "EventPoll_epoll.h"
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#endif // HAVE_EPOLL
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#endif // EVENT_POLL_H
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44
examples/EventPollEvent.h
Normal file
44
examples/EventPollEvent.h
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@ -0,0 +1,44 @@
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/*
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* Spdylay - SPDY Library
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*
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* Copyright (c) 2012 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef EVENT_POLL_EVENT_H
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#define EVENT_POLL_EVENT_H
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namespace spdylay {
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enum EventPollEvent {
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EP_POLLIN = 1,
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EP_POLLOUT = 1 << 1,
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EP_POLLHUP = 1 << 2,
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EP_POLLERR = 1 << 3
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};
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enum EventPollOp {
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EP_ADD,
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EP_MOD
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};
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} // namespace spdylay
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#endif // EVENT_POLL_EVENT_H
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116
examples/EventPoll_epoll.cc
Normal file
116
examples/EventPoll_epoll.cc
Normal file
@ -0,0 +1,116 @@
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/*
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* Spdylay - SPDY Library
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*
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* Copyright (c) 2012 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "EventPoll_epoll.h"
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#include <unistd.h>
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#include <cassert>
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namespace spdylay {
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EventPoll::EventPoll(size_t max_events)
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: max_events_(max_events), num_events_(0)
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{
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epfd_ = epoll_create(1);
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assert(epfd_ != -1);
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evlist_ = new epoll_event[max_events_];
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}
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EventPoll::~EventPoll()
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{
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if(epfd_ != -1) {
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close(epfd_);
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}
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delete [] evlist_;
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}
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int EventPoll::poll(int timeout)
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{
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num_events_ = 0;
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int n = epoll_wait(epfd_, evlist_, max_events_, timeout);
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if(n > 0) {
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num_events_ = n;
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}
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return n;
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}
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int EventPoll::get_num_events()
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{
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return num_events_;
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}
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void* EventPoll::get_user_data(size_t p)
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{
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return evlist_[p].data.ptr;
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}
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int EventPoll::get_events(size_t p)
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{
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int events = 0;
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int revents = evlist_[p].events;
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if(revents & EPOLLIN) {
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events |= EP_POLLIN;
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}
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if(revents & EPOLLOUT) {
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events |= EP_POLLOUT;
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}
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if(revents & EPOLLHUP) {
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events |= EP_POLLHUP;
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}
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if(revents & EPOLLERR) {
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events |= EP_POLLERR;
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}
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return events;
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}
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namespace {
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int update_event(int epfd, int op, int fd, int events, void *user_data)
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{
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epoll_event ev;
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ev.events = 0;
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if(events & EP_POLLIN) {
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ev.events |= EPOLLIN;
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}
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if(events & EP_POLLOUT) {
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ev.events |= EPOLLOUT;
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}
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ev.data.ptr = user_data;
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return epoll_ctl(epfd, op, fd, &ev);
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}
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} // namespace
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int EventPoll::ctl_event(int op, int fd, int events, void *user_data)
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{
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if(op == EP_ADD) {
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op = EPOLL_CTL_ADD;
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} else if(op == EP_MOD) {
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op = EPOLL_CTL_MOD;
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} else {
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return -1;
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}
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return update_event(epfd_, op, fd, events, user_data);
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}
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} // namespace spdylay
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60
examples/EventPoll_epoll.h
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60
examples/EventPoll_epoll.h
Normal file
@ -0,0 +1,60 @@
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/*
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* Spdylay - SPDY Library
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*
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* Copyright (c) 2012 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef EVENT_POLL_EPOLL_H
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#define EVENT_POLL_EPOLL_H
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#include <cstdlib>
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#include <sys/epoll.h>
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#include "EventPollEvent.h"
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namespace spdylay {
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class EventPoll {
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public:
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EventPoll(size_t max_events);
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~EventPoll();
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// Returns 0 if this function succeeds, or -1.
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// On success
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int poll(int timeout);
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// Returns number of events detected in previous call of poll().
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int get_num_events();
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// Returns events of p-eth event.
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int get_events(size_t p);
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// Returns user data of p-th event.
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void* get_user_data(size_t p);
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// Adds/Modifies event to watch.
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int ctl_event(int op, int fd, int events, void *user_data);
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private:
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int epfd_;
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size_t max_events_;
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epoll_event *evlist_;
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size_t num_events_;
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};
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} // namespace spdylay
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#endif // EVENT_POLL_EPOLL_H
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@ -33,7 +33,11 @@ spdycat_SOURCES = uri.cc spdylay_ssl.cc util.cc spdycat.cc
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if HAVE_EPOLL
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if HAVE_EPOLL
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spdyd_SOURCES = uri.cc spdylay_ssl.cc util.cc spdyd.cc
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spdyd_SOURCES = uri.cc spdylay_ssl.cc util.cc spdyd.cc EventPoll.h \
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EventPollEvent.h
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spdyd_SOURCES += EventPoll_epoll.cc EventPoll_epoll.h
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bin_PROGRAMS += spdyd
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bin_PROGRAMS += spdyd
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endif # HAVE_EPOLL
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endif # HAVE_EPOLL
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@ -32,7 +32,6 @@
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#include <netinet/tcp.h>
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#include <netinet/tcp.h>
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#include <signal.h>
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#include <signal.h>
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#include <getopt.h>
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#include <getopt.h>
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#include <sys/epoll.h>
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#include <cassert>
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#include <cassert>
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#include <cstdio>
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#include <cstdio>
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#include "spdylay_ssl.h"
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#include "spdylay_ssl.h"
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#include "uri.h"
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#include "uri.h"
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#include "util.h"
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#include "util.h"
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#include "EventPoll.h"
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namespace spdylay {
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namespace spdylay {
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@ -99,17 +99,30 @@ class Sessions;
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class EventHandler {
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class EventHandler {
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public:
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public:
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EventHandler() : mark_del_(false) {}
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virtual ~EventHandler() {}
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virtual ~EventHandler() {}
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virtual int execute(Sessions *sessions) = 0;
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virtual int execute(Sessions *sessions) = 0;
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virtual bool want_read() = 0;
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virtual bool want_read() = 0;
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virtual bool want_write() = 0;
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virtual bool want_write() = 0;
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virtual int fd() const = 0;
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virtual int fd() const = 0;
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virtual bool finish() = 0;
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virtual bool finish() = 0;
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bool mark_del()
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{
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return mark_del_;
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}
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void mark_del(bool d)
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{
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mark_del_ = d;
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}
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private:
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bool mark_del_;
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};
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};
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class Sessions {
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class Sessions {
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public:
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public:
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Sessions(int epfd, SSL_CTX *ssl_ctx) : epfd_(epfd), ssl_ctx_(ssl_ctx)
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Sessions(int max_events, SSL_CTX *ssl_ctx)
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: eventPoll_(max_events),
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ssl_ctx_(ssl_ctx)
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{}
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{}
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~Sessions()
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~Sessions()
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{
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{
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@ -134,31 +147,40 @@ public:
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}
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}
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int add_poll(EventHandler *handler)
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int add_poll(EventHandler *handler)
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{
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{
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return update_poll_internal(handler, EPOLL_CTL_ADD);
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return update_poll_internal(handler, EP_ADD);
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}
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}
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int mod_poll(EventHandler *handler)
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int mod_poll(EventHandler *handler)
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{
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{
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return update_poll_internal(handler, EPOLL_CTL_MOD);
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return update_poll_internal(handler, EP_MOD);
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}
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int poll(int timeout)
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{
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return eventPoll_.poll(timeout);
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}
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void* get_user_data(int p)
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{
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return eventPoll_.get_user_data(p);
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}
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int get_events(int p)
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{
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return eventPoll_.get_events(p);
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}
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}
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private:
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private:
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int update_poll_internal(EventHandler *handler, int op)
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int update_poll_internal(EventHandler *handler, int op)
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{
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{
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epoll_event ev;
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int events = 0;
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ev.events = 0;
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if(handler->want_read()) {
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if(handler->want_read()) {
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ev.events |= EPOLLIN;
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events |= EP_POLLIN;
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}
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}
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if(handler->want_write()) {
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if(handler->want_write()) {
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ev.events |= EPOLLOUT;
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events |= EP_POLLOUT;
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}
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}
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ev.data.ptr = handler;
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return eventPoll_.ctl_event(op, handler->fd(), events, handler);
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int r = epoll_ctl(epfd_, op, handler->fd(), &ev);
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return r;
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}
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}
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|
|
||||||
std::set<EventHandler*> handlers_;
|
std::set<EventHandler*> handlers_;
|
||||||
|
EventPoll eventPoll_;
|
||||||
SSL_CTX *ssl_ctx_;
|
SSL_CTX *ssl_ctx_;
|
||||||
int epfd_;
|
|
||||||
};
|
};
|
||||||
|
|
||||||
namespace {
|
namespace {
|
||||||
@ -814,47 +836,51 @@ int reactor()
|
|||||||
}
|
}
|
||||||
make_non_block(sfd);
|
make_non_block(sfd);
|
||||||
|
|
||||||
int epfd = epoll_create(1);
|
const size_t MAX_EVENTS = 256;
|
||||||
if(epfd == -1) {
|
Sessions sessions(MAX_EVENTS, ssl_ctx);
|
||||||
perror("epoll_create");
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
Sessions sessions(epfd, ssl_ctx);
|
|
||||||
ListenEventHandler *listen_hd = new ListenEventHandler(sfd);
|
ListenEventHandler *listen_hd = new ListenEventHandler(sfd);
|
||||||
if(sessions.add_poll(listen_hd) == -1) {
|
if(sessions.add_poll(listen_hd) == -1) {
|
||||||
std::cerr << "Adding listening socket to poll failed." << std::endl;
|
std::cerr << "Adding listening socket to poll failed." << std::endl;
|
||||||
return -1;
|
return -1;
|
||||||
}
|
}
|
||||||
sessions.add_handler(listen_hd);
|
sessions.add_handler(listen_hd);
|
||||||
const int MAX_EVENTS = 256;
|
std::vector<EventHandler*> del_list;
|
||||||
epoll_event events[MAX_EVENTS];
|
|
||||||
while(1) {
|
while(1) {
|
||||||
int n = epoll_wait(epfd, events, MAX_EVENTS, -1);
|
int n = sessions.poll(-1);
|
||||||
if(n == -1) {
|
if(n == -1) {
|
||||||
perror("epoll_wait");
|
perror("EventPoll");
|
||||||
} else {
|
} else {
|
||||||
for(int i = 0; i < n; ++i) {
|
for(int i = 0; i < n; ++i) {
|
||||||
EventHandler *hd = reinterpret_cast<EventHandler*>(events[i].data.ptr);
|
EventHandler *hd = reinterpret_cast<EventHandler*>
|
||||||
|
(sessions.get_user_data(i));
|
||||||
|
int events = sessions.get_events(i);
|
||||||
int r = 0;
|
int r = 0;
|
||||||
if((events[i].events & EPOLLIN) || (events[i].events & EPOLLOUT)) {
|
if(hd->mark_del()) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
if((events & EP_POLLIN) || (events & EP_POLLOUT)) {
|
||||||
r = hd->execute(&sessions);
|
r = hd->execute(&sessions);
|
||||||
} else if(events[i].events & (EPOLLERR | EPOLLHUP)) {
|
} else if(events & (EP_POLLERR | EP_POLLHUP)) {
|
||||||
on_close(sessions, hd);
|
hd->mark_del(true);
|
||||||
}
|
}
|
||||||
if(r != 0) {
|
if(r != 0) {
|
||||||
on_close(sessions, hd);
|
hd->mark_del(true);
|
||||||
} else {
|
} else {
|
||||||
if(hd->finish()) {
|
if(hd->finish()) {
|
||||||
on_close(sessions, hd);
|
hd->mark_del(true);
|
||||||
} else {
|
} else {
|
||||||
sessions.mod_poll(hd);
|
sessions.mod_poll(hd);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
for(std::vector<EventHandler*>::iterator i = del_list.begin(),
|
||||||
|
eoi = del_list.end(); i != eoi; ++i) {
|
||||||
|
on_close(sessions, *i);
|
||||||
|
}
|
||||||
|
del_list.clear();
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
on_close(sessions, listen_hd);
|
on_close(sessions, listen_hd);
|
||||||
close(epfd);
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
} // namespace
|
} // namespace
|
||||||
|
Loading…
Reference in New Issue
Block a user