/usr/include/log4cplus/helpers/syncprims.h is in liblog4cplus-dev 1.0.4-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 | // Copyright (C) 2009, Vaclav Haisman. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modifica-
// tion, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
// DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef LOG4CPLUS_THREAD_SYNCPRIMS_H
#define LOG4CPLUS_THREAD_SYNCPRIMS_H
#include <stdexcept>
#include <log4cplus/config.hxx>
#if defined (LOG4CPLUS_USE_PTHREADS)
# include <errno.h>
# include <pthread.h>
# include <semaphore.h>
# include <log4cplus/helpers/timehelper.h>
#elif defined (LOG4CPLUS_USE_WIN32_THREADS)
# undef WIN32_LEAN_AND_MEAN
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
#endif
namespace log4cplus { namespace thread {
namespace detail
{
LOG4CPLUS_EXPORT void syncprims_throw_exception (char const * const msg,
char const * const file, int line);
} // namespace detail
template <typename SP>
class SyncGuard
{
public:
SyncGuard (SP const &);
~SyncGuard ();
void lock ();
void unlock ();
void attach (SP const &);
void detach ();
private:
SP const * sp;
SyncGuard (SyncGuard const &);
SyncGuard & operator = (SyncGuard const &);
};
class ManualResetEvent;
class Mutex
{
public:
enum Type
{
DEFAULT,
RECURSIVE
};
explicit Mutex (Type = RECURSIVE);
~Mutex ();
void lock () const;
void unlock () const;
private:
#if defined (LOG4CPLUS_USE_PTHREADS)
mutable pthread_mutex_t mtx;
friend class ManualResetEvent;
#elif defined (LOG4CPLUS_USE_WIN32_THREADS)
mutable CRITICAL_SECTION cs;
#endif
Mutex (Mutex const &);
Mutex & operator = (Mutex &);
};
typedef SyncGuard<Mutex> MutexGuard;
class Semaphore
{
public:
Semaphore (unsigned max, unsigned initial);
~Semaphore ();
void lock () const;
void unlock () const;
private:
#if defined (LOG4CPLUS_USE_PTHREADS)
mutable sem_t sem;
#elif defined (LOG4CPLUS_USE_WIN32_THREADS)
HANDLE sem;
#endif
Semaphore (Semaphore const &);
Semaphore & operator = (Semaphore const &);
};
typedef SyncGuard<Semaphore> SemaphoreGuard;
class ManualResetEvent
{
public:
ManualResetEvent (bool = false);
~ManualResetEvent ();
void signal () const;
void wait () const;
bool timed_wait (unsigned long msec) const;
void reset () const;
private:
#if defined (LOG4CPLUS_USE_PTHREADS)
mutable pthread_cond_t cv;
mutable Mutex mtx;
mutable volatile unsigned sigcount;
mutable volatile bool signaled;
#elif defined (LOG4CPLUS_USE_WIN32_THREADS)
HANDLE ev;
#endif
ManualResetEvent (ManualResetEvent const &);
ManualResetEvent & operator = (ManualResetEvent const &);
};
} } // namespace log4cplus { namespace thread {
// Include the appropriate implementations of the classes declared
// above.
#if defined (LOG4CPLUS_USE_PTHREADS)
# include <log4cplus/helpers/syncprims-pthreads.h>
#elif defined (LOG4CPLUS_USE_WIN32_THREADS)
# include <log4cplus/helpers/syncprims-win32.h>
#endif
namespace log4cplus { namespace thread {
//
//
//
template <typename SP>
inline
SyncGuard<SP>::SyncGuard (SP const & m)
: sp (&m)
{
sp->lock ();
}
template <typename SP>
inline
SyncGuard<SP>::~SyncGuard ()
{
if (sp)
sp->unlock ();
}
template <typename SP>
inline
void
SyncGuard<SP>::lock ()
{
sp->lock ();
}
template <typename SP>
inline
void
SyncGuard<SP>::unlock ()
{
sp->unlock ();
}
template <typename SP>
inline
void
SyncGuard<SP>::attach (SP const & m)
{
sp = &m;
}
template <typename SP>
inline
void
SyncGuard<SP>::detach ()
{
sp = 0;
}
} } // namespace log4cplus { namespace thread {
#endif // LOG4CPLUS_THREAD_SYNCPRIMS_H
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