/usr/include/mamda/MamdaLock.h is in libmamda-dev 2.2.2.1-10.
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 | /* $Id$
*
* OpenMAMA: The open middleware agnostic messaging API
* Copyright (C) 2011 NYSE Technologies, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#ifndef MamdaLockH
#define MamdaLockH
#include <mamda/MamdaConfig.h>
namespace Wombat
{
#define ACQUIRE_WLOCK(lock) (lock).acquire(MamdaLock::WRITE)
#define ACQUIRE_RLOCK(lock) (lock).acquire(MamdaLock::READ)
#define RELEASE_WLOCK(lock) (lock).release(MamdaLock::WRITE)
#define RELEASE_RLOCK(lock) (lock).release(MamdaLock::READ)
#define ACQUIRE_LOCK(lock, writeNeeded) \
do { \
if (writeNeeded) \
(lock).acquire(MamdaLock::WRITE); \
else \
(lock).acquire(MamdaLock::READ); \
} while (0)
#define RELEASE_LOCK(lock, isWrite) \
do { \
if (isWrite) \
(lock).release(MamdaLock::WRITE); \
else \
(lock).release(MamdaLock::READ); \
} while (0)
class MAMDAExpDLL MamdaLock
{
public:
enum Scheme
{
SHARED,
EXCLUSIVE
};
enum Type
{
READ,
WRITE
};
MamdaLock (Scheme scheme,
const char* context,
int threads = 0);
~MamdaLock ();
bool acquire (Type type);
bool release (Type type);
static const char* type (Type type);
static const char* scheme (Scheme scheme);
static bool lockingEnabled()
{
// This is to be a configuration parameter at some point
return true;
}
private:
MamdaLock (const MamdaLock& lock);
class MamdaLockImpl;
MamdaLockImpl& mImpl;
};
#endif // MamdaLockH
} // namsespace Wombat
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