blob: d564c7ced9ca35fe868a243812350199b109f0b0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
/*
Copyright (c) 2007-2011 iMatix Corporation
Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser 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
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser 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 "poller_base.hpp"
namespace zmq
{
// Implements socket polling mechanism using the BSD-specific
// kqueue interface.
class kqueue_t : public poller_base_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 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;
// 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;
kqueue_t (const kqueue_t&);
const kqueue_t &operator = (const kqueue_t&);
};
}
#endif
#endif
|
