blob: 3d832c0e9d2238c976a67c0c906881f84b371499 (
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
|
/*
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_IO_THREAD_HPP_INCLUDED__
#define __ZMQ_IO_THREAD_HPP_INCLUDED__
#include <vector>
#include "stdint.hpp"
#include "object.hpp"
#include "poller.hpp"
#include "i_poll_events.hpp"
#include "signaler.hpp"
namespace zmq
{
// Generic part of the I/O thread. Polling-mechanism-specific features
// are implemented in separate "polling objects".
class io_thread_t : public object_t, public i_poll_events
{
public:
io_thread_t (class ctx_t *ctx_, uint32_t thread_slot_);
// Clean-up. If the thread was started, it's neccessary to call 'stop'
// before invoking destructor. Otherwise the destructor would hang up.
~io_thread_t ();
// Launch the physical thread.
void start ();
// Ask underlying thread to stop.
void stop ();
// Returns signaler associated with this I/O thread.
signaler_t *get_signaler ();
// i_poll_events implementation.
void in_event ();
void out_event ();
void timer_event ();
// Used by io_objects to retrieve the assciated poller object.
poller_t *get_poller ();
// Command handlers.
void process_stop ();
// Returns load experienced by the I/O thread.
int get_load ();
private:
// Poll thread gets notifications about incoming commands using
// this signaler.
signaler_t signaler;
// Handle associated with signaler's file descriptor.
poller_t::handle_t signaler_handle;
// I/O multiplexing is performed using a poller object.
poller_t *poller;
};
}
#endif
|
