summaryrefslogtreecommitdiff
path: root/cpp/src/IceGrid/NodeSessionManager.h
blob: 5188fb364093e1fd64c9fd36091c443386e51b5a (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
104
105
106
107
108
109
110
111
112
113
114
115
// **********************************************************************
//
// Copyright (c) 2003-2006 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************

#ifndef ICE_GRID_NODE_SESSION_MANAGER_H
#define ICE_GRID_NODE_SESSION_MANAGER_H

#include <IceUtil/Handle.h>
#include <IceUtil/Mutex.h>
#include <IceUtil/Monitor.h>

#include <IceGrid/SessionManager.h>
#include <IceGrid/Query.h>
#include <IceGrid/Internal.h>

namespace IceGrid
{

class NodeI;
typedef IceUtil::Handle<NodeI> NodeIPtr;

class NodeSessionKeepAliveThread : public SessionKeepAliveThread<NodeSessionPrx, InternalRegistryPrx>
{
public:

    NodeSessionKeepAliveThread(const InternalRegistryPrx&, const NodeIPtr&);

    virtual NodeSessionPrx createSession(const InternalRegistryPrx&, IceUtil::Time&);
    virtual void destroySession(const NodeSessionPrx&);
    virtual bool keepAlive(const NodeSessionPrx&);

private:

    const NodeIPtr _node;
    const std::string _name;
};
typedef IceUtil::Handle<NodeSessionKeepAliveThread> NodeSessionKeepAliveThreadPtr;

class NodeSessionManager : public IceUtil::Monitor<IceUtil::Mutex>
{
public:

    NodeSessionManager();
    
    void create(const NodeIPtr&);
    void create(const InternalRegistryPrx&);
    void waitForCreate();
    void destroy();

    NodeSessionKeepAliveThreadPtr replicaAdded(const InternalRegistryPrx&);
    void replicaRemoved(const InternalRegistryPrx&);

private:

    void syncReplicas(const InternalRegistryPrxSeq&);

    class Thread : public SessionKeepAliveThread<NodeSessionPrx, InternalRegistryPrx>
    {
    public:

	Thread(NodeSessionManager& manager, const InternalRegistryPrx& master) : 
	    SessionKeepAliveThread<NodeSessionPrx, InternalRegistryPrx>(master),
	    _manager(manager)
        {
	}

	virtual NodeSessionPrx 
	createSession(const InternalRegistryPrx& master, IceUtil::Time& timeout)
        {
	    return _manager.createSession(master, timeout);
	}

	virtual void 
	destroySession(const NodeSessionPrx& session)
        {
	    _manager.destroySession(session);
	}

	virtual bool 
	keepAlive(const NodeSessionPrx& session)
        {
	    return _manager.keepAlive(session);
	}

    private:
	
	NodeSessionManager& _manager;
    };
    typedef IceUtil::Handle<Thread> ThreadPtr;

    friend class Thread;

    NodeSessionPrx createSession(const InternalRegistryPrx&, IceUtil::Time&);
    void destroySession(const NodeSessionPrx&);
    bool keepAlive(const NodeSessionPrx&);

    const NodeIPtr _node;
    ThreadPtr _thread;
    QueryPrx _query;
    InternalRegistryPrx _master;
    unsigned long _serial;
    bool _destroyed;

    typedef std::map<Ice::Identity, NodeSessionKeepAliveThreadPtr> NodeSessionMap;
    NodeSessionMap _sessions;
};

}

#endif