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
104
105
106
107
108
109
110
111
112
113
114
|
/*
* Copyright (c) 2013, Ford Motor Company
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of the Ford Motor Company nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SRC_COMPONENTS_CONNECTION_HANDLER_INCLUDE_HEARTBEAT_MONITOR_H_
#define SRC_COMPONENTS_CONNECTION_HANDLER_INCLUDE_HEARTBEAT_MONITOR_H_
#include <stdint.h>
#include <map>
#include "utils/threads/thread.h"
#include "utils/threads/thread_delegate.h"
#include "utils/date_time.h"
#include "utils/macro.h"
#include "utils/lock.h"
namespace connection_handler {
class Connection;
/*
* Starts hearbeat timer for session and when it elapses closes it
*/
class HeartBeatMonitor: public threads::ThreadDelegate {
public:
HeartBeatMonitor(int32_t heartbeat_timeout_seconds,
Connection *connection);
/**
* Thread procedure.
*/
virtual void threadMain();
/**
* \brief add and remove session
*/
void AddSession(uint8_t session_id);
void RemoveSession(uint8_t session_id);
/**
* \brief Resets timer preventing session from being killed
*/
void KeepAlive(uint8_t session_id);
/**
* \brief Thread exit procedure.
*/
virtual bool exitThreadMain();
void set_heartbeat_timeout_seconds(int32_t timeout);
private:
struct SessionState;
typedef std::map<uint8_t, SessionState> SessionMap;
// \brief Heartbeat timeout, should be read from profile
int32_t heartbeat_timeout_seconds_;
// \brief Connection that must be closed when timeout elapsed
Connection *connection_;
static const int32_t kDefaultCycleTimeout = 100000;
struct SessionState {
TimevalStruct heartbeat_expiration;
bool is_heartbeat_sent;
};
// \brief monitored sessions collection
SessionMap sessions_;
sync_primitives::Lock sessions_list_lock_; // recurcive
sync_primitives::Lock main_thread_lock_;
mutable sync_primitives::Lock heartbeat_timeout_seconds_lock_;
volatile bool run_;
void Process();
void RefreshExpiration(TimevalStruct* expiration) const;
inline bool HasTimeoutElapsed(const TimevalStruct& expiration) const;
DISALLOW_COPY_AND_ASSIGN(HeartBeatMonitor);
};
} // namespace connection_handler
#endif // SRC_COMPONENTS_CONNECTION_HANDLER_INCLUDE_HEARTBEAT_MONITOR_H_
|
