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// Windows/Synchronization.h
#ifdef ENV_BEOS
#include <Locker.h>
#include <kernel/OS.h>
#include <list>
#endif
/* Remark : WFMO = WaitForMultipleObjects */
namespace NWindows { namespace NSynchronization { struct CBaseHandleWFMO; } }
typedef NWindows::NSynchronization::CBaseHandleWFMO *HANDLE;
DWORD WINAPI WaitForMultipleObjects( DWORD count, const HANDLE *handles, BOOL wait_all, DWORD timeout );
namespace NWindows {
namespace NSynchronization {
#ifdef ENV_BEOS
class CSynchro : BLocker, private Uncopyable
{
#define MAX_THREAD 256
thread_id _waiting[MAX_THREAD]; // std::list<thread_id> _waiting;
int index_waiting;
public:
CSynchro() { index_waiting = 0; }
void Create() { index_waiting = 0; }
~CSynchro() {}
void Enter() { Lock(); }
void Leave() { Unlock(); }
void WaitCond() {
_waiting[index_waiting++] = find_thread(NULL); // _waiting.push_back(find_thread(NULL));
thread_id sender;
Unlock();
int msg = receive_data(&sender, NULL, 0);
Lock();
}
void LeaveAndSignal() {
// Unlock();
// Lock();
// for (std::list<thread_id>::iterator index = _waiting.begin(); index != _waiting.end(); index++)
for(int index = 0 ; index < index_waiting ; index++)
{
send_data(_waiting[index], '7zCN', NULL, 0);
}
index_waiting = 0; // _waiting.clear();
Unlock();
}
};
#else // #ifdef ENV_BEOS
#ifdef DEBUG_SYNCHRO
class CSynchro: private Uncopyable
{
pthread_mutex_t _object;
pthread_cond_t _cond;
bool _isValid;
void dump_error(int ligne,int ret,const char *text,void *param);
public:
CSynchro();
~CSynchro();
void Create();
void Enter();
void Leave();
void WaitCond();
void LeaveAndSignal();
};
#else // #ifdef DEBUG_SYNCHRO
class CSynchro : private Uncopyable
{
pthread_mutex_t _object;
pthread_cond_t _cond;
bool _isValid;
public:
CSynchro() { _isValid = false; }
~CSynchro() {
if (_isValid) {
::pthread_mutex_destroy(&_object);
::pthread_cond_destroy(&_cond);
}
_isValid = false;
}
void Create() {
::pthread_mutex_init(&_object,0);
::pthread_cond_init(&_cond,0);
}
void Enter() {
::pthread_mutex_lock(&_object);
}
void Leave() {
::pthread_mutex_unlock(&_object);
}
void WaitCond() {
::pthread_cond_wait(&_cond, &_object);
}
void LeaveAndSignal() {
::pthread_cond_broadcast(&_cond);
::pthread_mutex_unlock(&_object);
}
};
#endif // #ifdef DEBUG_SYNCHRO
#endif // #ifdef ENV_BEOS
struct CBaseHandleWFMO // FIXME : private Uncopyable
{
CSynchro *_sync;
CBaseHandleWFMO() { }
operator HANDLE() { return this; }
virtual bool IsSignaledAndUpdate() = 0;
};
class CBaseEventWFMO : public CBaseHandleWFMO
{
bool _manual_reset;
bool _state;
public:
bool IsCreated() { return (this->_sync != 0); }
CBaseEventWFMO() { this->_sync = 0; }
~CBaseEventWFMO() { Close(); }
WRes Close() { this->_sync = 0; return S_OK; }
WRes Create(CSynchro *sync,bool manualReset, bool initiallyOwn)
{
this->_sync = sync;
this->_manual_reset = manualReset;
this->_state = initiallyOwn;
return S_OK;
}
WRes Set() {
this->_sync->Enter();
this->_state = true;
this->_sync->LeaveAndSignal();
return S_OK;
}
WRes Reset() {
this->_sync->Enter();
this->_state = false;
this->_sync->Leave();
return S_OK;
}
virtual bool IsSignaledAndUpdate() {
if (this->_state == true) {
if (this->_manual_reset == false) this->_state = false;
return true;
}
return false;
}
};
class CManualResetEventWFMO: public CBaseEventWFMO
{
public:
WRes Create(CSynchro *sync,bool initiallyOwn = false) { return CBaseEventWFMO::Create(sync,true, initiallyOwn); }
};
class CAutoResetEventWFMO: public CBaseEventWFMO
{
public:
WRes Create(CSynchro *sync) { return CBaseEventWFMO::Create(sync,false, false); }
WRes CreateIfNotCreated(CSynchro *sync)
{
if (IsCreated())
return 0;
return CBaseEventWFMO::Create(sync,false, false);
}
};
class CSemaphoreWFMO : public CBaseHandleWFMO
{
LONG _count;
LONG _maxCount;
public:
CSemaphoreWFMO() : _count(0), _maxCount(0) { this->_sync=0;}
WRes Create(CSynchro *sync,LONG initiallyCount, LONG maxCount)
{
if ((initiallyCount < 0) || (initiallyCount > maxCount) || (maxCount < 1)) return S_FALSE;
this->_sync = sync;
this->_count = initiallyCount;
this->_maxCount = maxCount;
return S_OK;
}
WRes Release(LONG releaseCount = 1) {
if (releaseCount < 1) return S_FALSE;
this->_sync->Enter();
LONG newCount = this->_count + releaseCount;
if (newCount > this->_maxCount)
{
this->_sync->Leave();
return S_FALSE;
}
this->_count = newCount;
this->_sync->LeaveAndSignal();
return S_OK;
}
WRes Close() { this->_sync=0; return S_OK; }
virtual bool IsSignaledAndUpdate() {
if (this->_count > 0) {
this->_count--;
return true;
}
return false;
}
};
}}
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