/usr/include/cec-platform/util/buffer.h is in libcec-platform-dev 1.0.10+dfsg1-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | #pragma once
/*
* This file is part of the libCEC(R) library.
*
* libCEC(R) is Copyright (C) 2011-2012 Pulse-Eight Limited. All rights reserved.
* libCEC(R) is an original work, containing original code.
*
* libCEC(R) is a trademark of Pulse-Eight Limited.
*
* This program is dual-licensed; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*
* Alternatively, you can license this library under a commercial license,
* please contact Pulse-Eight Licensing for more information.
*
* For more information contact:
* Pulse-Eight Licensing <license@pulse-eight.com>
* http://www.pulse-eight.com/
* http://www.pulse-eight.net/
*/
#include "../threads/mutex.h"
#include <queue>
namespace PLATFORM
{
template<typename _BType>
struct SyncedBuffer
{
public:
SyncedBuffer(size_t iMaxSize = 100) :
m_maxSize(iMaxSize),
m_bHasData(false) {}
virtual ~SyncedBuffer(void)
{
Clear();
}
void Clear(void)
{
CLockObject lock(m_mutex);
while (!m_buffer.empty())
m_buffer.pop();
m_bHasData = false;
m_condition.Broadcast();
}
size_t Size(void)
{
CLockObject lock(m_mutex);
return m_buffer.size();
}
bool IsEmpty(void)
{
CLockObject lock(m_mutex);
return !m_bHasData;
}
bool Push(_BType entry)
{
CLockObject lock(m_mutex);
if (m_buffer.size() == m_maxSize)
return false;
m_buffer.push(entry);
m_bHasData = true;
m_condition.Signal();
return true;
}
bool Pop(_BType &entry, int32_t iTimeoutMs = 0)
{
CLockObject lock(m_mutex);
if (m_buffer.empty())
{
if (iTimeoutMs == 0)
return false;
if (!m_condition.Wait(m_mutex, m_bHasData, iTimeoutMs))
return false;
}
entry = m_buffer.front();
m_buffer.pop();
m_bHasData = !m_buffer.empty();
return true;
}
private:
size_t m_maxSize;
std::queue<_BType> m_buffer;
CMutex m_mutex;
bool m_bHasData;
CCondition<bool> m_condition;
};
};
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