mirror of
https://github.com/zeromq/libzmq.git
synced 2024-12-13 02:42:58 +01:00
114 lines
3.0 KiB
C++
114 lines
3.0 KiB
C++
/*
|
|
Copyright (c) 2007-2010 iMatix Corporation
|
|
|
|
This file is part of 0MQ.
|
|
|
|
0MQ is free software; you can redistribute it and/or modify it under
|
|
the terms of the Lesser GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
0MQ is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
Lesser GNU General Public License for more details.
|
|
|
|
You should have received a copy of the Lesser GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef __ZMQ_KQUEUE_HPP_INCLUDED__
|
|
#define __ZMQ_KQUEUE_HPP_INCLUDED__
|
|
|
|
#include "platform.hpp"
|
|
|
|
#if defined ZMQ_HAVE_FREEBSD || defined ZMQ_HAVE_OPENBSD ||\
|
|
defined ZMQ_HAVE_OSX || defined ZMQ_HAVE_NETBSD
|
|
|
|
#include <vector>
|
|
|
|
#include "fd.hpp"
|
|
#include "thread.hpp"
|
|
#include "atomic_counter.hpp"
|
|
|
|
namespace zmq
|
|
{
|
|
|
|
// Implements socket polling mechanism using the BSD-specific
|
|
// kqueue interface.
|
|
|
|
class kqueue_t
|
|
{
|
|
public:
|
|
|
|
typedef void* handle_t;
|
|
|
|
kqueue_t ();
|
|
~kqueue_t ();
|
|
|
|
// "poller" concept.
|
|
handle_t add_fd (fd_t fd_, struct i_poll_events *events_);
|
|
void rm_fd (handle_t handle_);
|
|
void set_pollin (handle_t handle_);
|
|
void reset_pollin (handle_t handle_);
|
|
void set_pollout (handle_t handle_);
|
|
void reset_pollout (handle_t handle_);
|
|
void add_timer (struct i_poll_events *events_);
|
|
void cancel_timer (struct i_poll_events *events_);
|
|
int get_load ();
|
|
void start ();
|
|
void stop ();
|
|
|
|
private:
|
|
|
|
// Main worker thread routine.
|
|
static void worker_routine (void *arg_);
|
|
|
|
// Main event loop.
|
|
void loop ();
|
|
|
|
// File descriptor referring to the kernel event queue.
|
|
fd_t kqueue_fd;
|
|
|
|
// Adds the event to the kqueue.
|
|
void kevent_add (fd_t fd_, short filter_, void *udata_);
|
|
|
|
// Deletes the event from the kqueue.
|
|
void kevent_delete (fd_t fd_, short filter_);
|
|
|
|
struct poll_entry_t
|
|
{
|
|
fd_t fd;
|
|
bool flag_pollin;
|
|
bool flag_pollout;
|
|
i_poll_events *reactor;
|
|
};
|
|
|
|
// List of retired event sources.
|
|
typedef std::vector <poll_entry_t*> retired_t;
|
|
retired_t retired;
|
|
|
|
// List of all the engines waiting for the timer event.
|
|
typedef std::vector <struct i_poll_events*> timers_t;
|
|
timers_t timers;
|
|
|
|
// If true, thread is in the process of shutting down.
|
|
bool stopping;
|
|
|
|
// Handle of the physical thread doing the I/O work.
|
|
thread_t worker;
|
|
|
|
// Load of the poller. Currently number of file descriptors
|
|
// registered with the poller.
|
|
atomic_counter_t load;
|
|
|
|
kqueue_t (const kqueue_t&);
|
|
void operator = (const kqueue_t&);
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif
|