mirror of
https://github.com/moparisthebest/spdylay
synced 2024-11-05 09:05:07 -05:00
117 lines
2.7 KiB
C++
117 lines
2.7 KiB
C++
/*
|
|
* Spdylay - SPDY Library
|
|
*
|
|
* Copyright (c) 2012 Tatsuhiro Tsujikawa
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
#include "EventPoll_epoll.h"
|
|
|
|
#include <unistd.h>
|
|
|
|
#include <cassert>
|
|
|
|
namespace spdylay {
|
|
|
|
EventPoll::EventPoll(size_t max_events)
|
|
: max_events_(max_events), num_events_(0)
|
|
{
|
|
epfd_ = epoll_create(1);
|
|
assert(epfd_ != -1);
|
|
evlist_ = new epoll_event[max_events_];
|
|
}
|
|
|
|
EventPoll::~EventPoll()
|
|
{
|
|
if(epfd_ != -1) {
|
|
close(epfd_);
|
|
}
|
|
delete [] evlist_;
|
|
}
|
|
|
|
int EventPoll::poll(int timeout)
|
|
{
|
|
num_events_ = 0;
|
|
int n = epoll_wait(epfd_, evlist_, max_events_, timeout);
|
|
if(n > 0) {
|
|
num_events_ = n;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
int EventPoll::get_num_events()
|
|
{
|
|
return num_events_;
|
|
}
|
|
|
|
void* EventPoll::get_user_data(size_t p)
|
|
{
|
|
return evlist_[p].data.ptr;
|
|
}
|
|
|
|
int EventPoll::get_events(size_t p)
|
|
{
|
|
int events = 0;
|
|
int revents = evlist_[p].events;
|
|
if(revents & EPOLLIN) {
|
|
events |= EP_POLLIN;
|
|
}
|
|
if(revents & EPOLLOUT) {
|
|
events |= EP_POLLOUT;
|
|
}
|
|
if(revents & EPOLLHUP) {
|
|
events |= EP_POLLHUP;
|
|
}
|
|
if(revents & EPOLLERR) {
|
|
events |= EP_POLLERR;
|
|
}
|
|
return events;
|
|
}
|
|
|
|
namespace {
|
|
int update_event(int epfd, int op, int fd, int events, void *user_data)
|
|
{
|
|
epoll_event ev;
|
|
ev.events = 0;
|
|
if(events & EP_POLLIN) {
|
|
ev.events |= EPOLLIN;
|
|
}
|
|
if(events & EP_POLLOUT) {
|
|
ev.events |= EPOLLOUT;
|
|
}
|
|
ev.data.ptr = user_data;
|
|
return epoll_ctl(epfd, op, fd, &ev);
|
|
}
|
|
} // namespace
|
|
|
|
int EventPoll::ctl_event(int op, int fd, int events, void *user_data)
|
|
{
|
|
if(op == EP_ADD) {
|
|
op = EPOLL_CTL_ADD;
|
|
} else if(op == EP_MOD) {
|
|
op = EPOLL_CTL_MOD;
|
|
} else {
|
|
return -1;
|
|
}
|
|
return update_event(epfd_, op, fd, events, user_data);
|
|
}
|
|
|
|
} // namespace spdylay
|