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comparison OrthancCppClient/ThreadedCommandProcessor.h @ 1:fd402e53d263

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 01 Jun 2015 11:12:20 +0200
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0:ebc1e38ef615 1:fd402e53d263
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 *
6 * This program is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, either version 3 of the
9 * License, or (at your option) any later version.
10 *
11 * In addition, as a special exception, the copyright holders of this
12 * program give permission to link the code of its release with the
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
14 * that use the same license as the "OpenSSL" library), and distribute
15 * the linked executables. You must obey the GNU General Public License
16 * in all respects for all of the code used other than "OpenSSL". If you
17 * modify file(s) with this exception, you may extend this exception to
18 * your version of the file(s), but you are not obligated to do so. If
19 * you do not wish to do so, delete this exception statement from your
20 * version. If you delete this exception statement from all source files
21 * in the program, then also delete it here.
22 *
23 * This program is distributed in the hope that it will be useful, but
24 * WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 * General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 **/
31
32
33 #pragma once
34
35 #include "../ICommand.h"
36
37 #include "SharedMessageQueue.h"
38
39 namespace Orthanc
40 {
41 class ThreadedCommandProcessor
42 {
43 public:
44 class IListener
45 {
46 public:
47 virtual ~IListener()
48 {
49 }
50
51 virtual void SignalProgress(unsigned int current,
52 unsigned int total) = 0;
53
54 virtual void SignalSuccess(unsigned int total) = 0;
55
56 virtual void SignalFailure() = 0;
57
58 virtual void SignalCancel() = 0;
59 };
60
61 private:
62 SharedMessageQueue queue_;
63 bool done_;
64 bool cancel_;
65 std::vector<boost::thread*> threads_;
66 IListener* listener_;
67
68 boost::mutex mutex_;
69 bool success_;
70 unsigned int remainingCommands_, totalCommands_;
71 boost::condition_variable processedCommand_;
72
73 static void Processor(ThreadedCommandProcessor* that);
74
75 public:
76 ThreadedCommandProcessor(unsigned int numThreads);
77
78 ~ThreadedCommandProcessor();
79
80 // This takes the ownership of the command
81 void Post(ICommand* command);
82
83 bool Join();
84
85 void Cancel();
86
87 void SetListener(IListener& listener);
88
89 IListener& GetListener() const
90 {
91 return *listener_;
92 }
93 };
94 }