blob: 0a8d508a70a9bcbb148a7aef8c7374b144003540 (
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
|
#ifndef QPID_CLUSTER_EXP_TICKER_H
#define QPID_CLUSTER_EXP_TICKER_H
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include "qpid/RefCounted.h"
#include "qpid/sys/Mutex.h"
#include "qpid/sys/PollableCondition.h"
#include "qpid/sys/Time.h"
#include "qpid/sys/Timer.h"
#include <boost/function.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/intrusive_ptr.hpp>
#include <vector>
namespace qpid {
namespace sys {
class Poller;
}
namespace cluster {
/**
* Generate regular calls to QueueContext::tick.
* Work of caling tick is not done in the timer thread.
* The timer task triggers a PollableCondition, which calls the ticks.
*
* THREAD SAFE: add/remove are called in connection or deliver
* threads, fire is called in timer thread and tick is called in the
* IO thread for the PollableCondition.
*/
class Ticker : public sys::TimerTask
{
public:
struct Tickable : public RefCounted {
virtual ~Tickable();
virtual void tick() = 0;
};
Ticker(sys::Duration tick, sys::Timer&, boost::shared_ptr<sys::Poller>);
void add(boost::intrusive_ptr<Tickable>);
void remove(boost::intrusive_ptr<Tickable>);
private:
typedef std::vector<boost::intrusive_ptr<Tickable> > Tickables;
void fire(); // Called in timer thread.
void dispatch(sys::PollableCondition&); // Called in IO thread
sys::Timer& timer;
sys::PollableCondition condition;
sys::Mutex lock;
Tickables tickables;
// Only accessed in the condition IO thread so no lock needed.
// This is a member to keep memory allocated by the vector and
// avoid re-allocation each time
Tickables working;
};
}} // namespace qpid::cluster
#endif /*!QPID_CLUSTER_EXP_TICKER_H*/
|
