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comparison Core/MultiThreading/BagOfTasks.h @ 1920:b97aa579e85b

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bag of tasks
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 19 Feb 2016 17:01:50 +0100
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children 730eedd9a5dc
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1919:d9e33b165112 1920:b97aa579e85b
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2016 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 <list>
38
39 namespace Orthanc
40 {
41 class BagOfTasks : public boost::noncopyable
42 {
43 private:
44 typedef std::list<ICommand*> Tasks;
45
46 Tasks tasks_;
47
48 public:
49 ~BagOfTasks()
50 {
51 for (Tasks::iterator it = tasks_.begin(); it != tasks_.end(); it++)
52 {
53 delete *it;
54 }
55 }
56
57 ICommand* Pop()
58 {
59 ICommand* task = tasks_.front();
60 tasks_.pop_front();
61 return task;
62 }
63
64 void Push(ICommand* task) // Takes ownership
65 {
66 if (task != NULL)
67 {
68 tasks_.push_back(task);
69 }
70 }
71
72 size_t GetSize() const
73 {
74 return tasks_.size();
75 }
76
77 bool IsEmpty() const
78 {
79 return tasks_.empty();
80 }
81 };
82 }