mirror of
https://github.com/moparisthebest/spdylay
synced 2024-11-05 09:05:07 -05:00
120 lines
3.1 KiB
C++
120 lines
3.1 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_kqueue.h"
|
|
|
|
#include <unistd.h>
|
|
|
|
#include <cerrno>
|
|
#include <cassert>
|
|
|
|
#ifdef KEVENT_UDATA_INTPTR_T
|
|
# define PTR_TO_UDATA(X) (reinterpret_cast<intptr_t>(X))
|
|
#else // !KEVENT_UDATA_INTPTR_T
|
|
# define PTR_TO_UDATA(X) (X)
|
|
#endif // !KEVENT_UDATA_INTPTR_T
|
|
|
|
namespace spdylay {
|
|
|
|
EventPoll::EventPoll(size_t max_events)
|
|
: max_events_(max_events), num_events_(0)
|
|
{
|
|
kq_ = kqueue();
|
|
assert(kq_ != -1);
|
|
evlist_ = new struct kevent[max_events_];
|
|
}
|
|
|
|
EventPoll::~EventPoll()
|
|
{
|
|
if(kq_ != -1) {
|
|
close(kq_);
|
|
}
|
|
delete [] evlist_;
|
|
}
|
|
|
|
int EventPoll::poll(int timeout)
|
|
{
|
|
timespec ts, *ts_ptr;
|
|
if(timeout == -1) {
|
|
ts_ptr = 0;
|
|
} else {
|
|
ts.tv_sec = timeout/1000;
|
|
ts.tv_nsec = (timeout%1000)*1000000;
|
|
ts_ptr = &ts;
|
|
}
|
|
num_events_ = 0;
|
|
int n;
|
|
while((n = kevent(kq_, evlist_, 0, evlist_, max_events_, ts_ptr)) == -1 &&
|
|
errno == EINTR);
|
|
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 reinterpret_cast<void*>(evlist_[p].udata);
|
|
}
|
|
|
|
int EventPoll::get_events(size_t p)
|
|
{
|
|
int events = 0;
|
|
short filter = evlist_[p].filter;
|
|
if(filter == EVFILT_READ) {
|
|
events |= EP_POLLIN;
|
|
}
|
|
if(filter == EVFILT_WRITE) {
|
|
events |= EP_POLLOUT;
|
|
}
|
|
return events;
|
|
}
|
|
|
|
namespace {
|
|
int update_event(int kq, int fd, int events, void *user_data)
|
|
{
|
|
struct kevent changelist[2];
|
|
EV_SET(&changelist[0], fd, EVFILT_READ,
|
|
EV_ADD | ((events & EP_POLLIN) ? EV_ENABLE : EV_DISABLE),
|
|
0, 0, PTR_TO_UDATA(user_data));
|
|
EV_SET(&changelist[1], fd, EVFILT_WRITE,
|
|
EV_ADD | ((events & EP_POLLOUT) ? EV_ENABLE : EV_DISABLE),
|
|
0, 0, PTR_TO_UDATA(user_data));
|
|
timespec ts = { 0, 0 };
|
|
return kevent(kq, changelist, 2, changelist, 0, &ts);
|
|
}
|
|
} // namespace
|
|
|
|
int EventPoll::ctl_event(int op, int fd, int events, void *user_data)
|
|
{
|
|
return update_event(kq_, fd, events, user_data);
|
|
}
|
|
|
|
} // namespace spdylay
|