Merge branch 'master' into release
[deb_libcec.git] / src / lib / util / buffer.h
1 #pragma once
2 /*
3 * This file is part of the libCEC(R) library.
4 *
5 * libCEC(R) is Copyright (C) 2011 Pulse-Eight Limited. All rights reserved.
6 * libCEC(R) is an original work, containing original code.
7 *
8 * libCEC(R) is a trademark of Pulse-Eight Limited.
9 *
10 * This program is dual-licensed; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 *
24 *
25 * Alternatively, you can license this library under a commercial license,
26 * please contact Pulse-Eight Licensing for more information.
27 *
28 * For more information contact:
29 * Pulse-Eight Licensing <license@pulse-eight.com>
30 * http://www.pulse-eight.com/
31 * http://www.pulse-eight.net/
32 */
33
34 #include "../platform/threads.h"
35 #include <queue>
36
37 namespace CEC
38 {
39 template<typename _BType>
40 struct CecBuffer
41 {
42 public:
43 CecBuffer(unsigned int iMaxSize = 100)
44 {
45 m_maxSize = iMaxSize;
46 }
47 virtual ~CecBuffer(void) {}
48
49 int Size(void) const { return m_buffer.size(); }
50
51 bool Push(_BType entry)
52 {
53 CLockObject lock(&m_mutex);
54 if (m_buffer.size() == m_maxSize)
55 return false;
56
57 m_buffer.push(entry);
58 return true;
59 }
60
61 bool Pop(_BType &entry)
62 {
63 bool bReturn(false);
64 CLockObject lock(&m_mutex);
65 if (m_buffer.size() > 0)
66 {
67 entry = m_buffer.front();
68 m_buffer.pop();
69 bReturn = true;
70 }
71 return bReturn;
72 }
73
74 private:
75 unsigned int m_maxSize;
76 std::queue<_BType> m_buffer;
77 CMutex m_mutex;
78 };
79 };