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/*
* libADLMIDI is a free Software MIDI synthesizer library with OPL3 emulation
*
* Original ADLMIDI code: Copyright (c) 2010-2014 Joel Yliluoma <bisqwit@iki.fi>
* ADLMIDI Library API: Copyright (c) 2015-2022 Vitaly Novichkov <admin@wohlnet.ru>
*
* Library is based on the ADLMIDI, a MIDI player for Linux and Windows with OPL3 emulation:
* http://iki.fi/bisqwit/source/adlmidi.html
*
* This program is free software: 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 3 of the License, or
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef DOSBOX_NO_MUTEX
# if defined(USE_LIBOGC_MUTEX)
# include <ogc/mutex.h>
typedef mutex_t MutexNativeObject;
# elif !defined(_WIN32)
# include <pthread.h>
typedef pthread_mutex_t MutexNativeObject;
# else
# include <windows.h>
typedef CRITICAL_SECTION MutexNativeObject;
# endif
#endif
class Mutex
{
public:
Mutex();
~Mutex();
void lock();
void unlock();
private:
#if !defined(DOSBOX_NO_MUTEX)
MutexNativeObject m;
#endif
Mutex(const Mutex &);
Mutex &operator=(const Mutex &);
};
class MutexHolder
{
public:
explicit MutexHolder(Mutex &m) : m(m) { m.lock(); }
~MutexHolder() { m.unlock(); }
private:
Mutex &m;
MutexHolder(const MutexHolder &);
MutexHolder &operator=(const MutexHolder &);
};
#if defined(DOSBOX_NO_MUTEX) // No mutex, just a dummy
inline Mutex::Mutex()
{}
inline Mutex::~Mutex()
{}
inline void Mutex::lock()
{}
inline void Mutex::unlock()
{}
#elif defined(USE_LIBOGC_MUTEX)
inline Mutex::Mutex()
{
m = LWP_MUTEX_NULL;
LWP_MutexInit(&m, 0);
}
inline Mutex::~Mutex()
{
LWP_MutexDestroy(m);
}
inline void Mutex::lock()
{
LWP_MutexLock(m);
}
inline void Mutex::unlock()
{
LWP_MutexUnlock(m);
}
#elif !defined(_WIN32) // pthread
inline Mutex::Mutex()
{
pthread_mutex_init(&m, NULL);
}
inline Mutex::~Mutex()
{
pthread_mutex_destroy(&m);
}
inline void Mutex::lock()
{
pthread_mutex_lock(&m);
}
inline void Mutex::unlock()
{
pthread_mutex_unlock(&m);
}
#else // Win32
inline Mutex::Mutex()
{
InitializeCriticalSection(&m);
}
inline Mutex::~Mutex()
{
DeleteCriticalSection(&m);
}
inline void Mutex::lock()
{
EnterCriticalSection(&m);
}
inline void Mutex::unlock()
{
LeaveCriticalSection(&m);
}
#endif
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