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
|
/*
* 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.
*/
#pragma once
#include "MessageWaiter.h"
#include "QpidAddress.h"
namespace Apache {
namespace Qpid {
namespace Interop {
using namespace System;
using namespace System::Threading;
using namespace System::Runtime::InteropServices;
using namespace qpid::client;
using namespace std;
// smart pointer to the low level AMQP 0-10 frames of the message
typedef qpid::framing::FrameSet::shared_ptr QpidFrameSetPtr;
public ref class InputLink
{
private:
AmqpSession^ amqpSession;
Subscription* subscriptionp;
LocalQueue* localQueuep;
Demux::QueuePtr* queuePtrp;
Collections::Generic::List<MessageWaiter^>^ waiters;
bool disposed;
bool finalizing;
Object^ linkLock;
Object^ subscriptionLock;
QpidFrameSetPtr* dequeuedFrameSetpp;
ManualResetEvent^ asyncHelperWaitHandle;
// number of messages to buffer locally for future consumption
int prefetchLimit;
// the number of messages requested and not yet processed
int workingCredit;
// stopping and restarting the message flow
bool creditSyncPending;
// working credit low water mark
int minWorkingCredit;
bool browsing;
QpidAddress^ qpidAddress;
void Cleanup();
void ReleaseNative();
bool haveMessage();
void addWaiter(MessageWaiter^ waiter);
void asyncHelper();
AmqpMessage^ createAmqpMessage(IntPtr msgp);
void AdjustCredit();
void SyncCredit(Object ^);
internal:
InputLink(AmqpSession^ session, System::String^ sourceQueue, qpid::client::AsyncSession *qpidSessionp,
qpid::client::SubscriptionManager *qpidSubsMgrp, bool exclusive, bool temporary, System::String^ filterKey,
System::String^ exchange);
bool internalWaitForMessage();
void unblockWaiter();
void resetQueue();
IntPtr nextLocalMessage();
void removeWaiter(MessageWaiter^ waiter);
void sync();
public:
~InputLink();
!InputLink();
void Close();
bool TryReceive(TimeSpan timeout, [Out] AmqpMessage ^% amqpMessage);
IAsyncResult^ BeginTryReceive(TimeSpan timeout, AsyncCallback^ callback, Object^ state);
bool EndTryReceive(IAsyncResult^ result, [Out] AmqpMessage^% amqpMessage);
bool WaitForMessage(TimeSpan timeout);
IAsyncResult^ BeginWaitForMessage(TimeSpan timeout, AsyncCallback^ callback, Object^ state);
bool EndWaitForMessage(IAsyncResult^ result);
property int PrefetchLimit {
int get () { return prefetchLimit; }
void set (int value);
}
property bool Browsing {
bool get () { return browsing; }
}
};
}}} // namespace Apache::Qpid::Interop
|
