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// Windows/Synchronization.h
#ifndef __WINDOWS_SYNCHRONIZATION_H
#define __WINDOWS_SYNCHRONIZATION_H
#include "Defs.h"
extern "C"
{
#include "../../C/Threads.h"
}
#ifdef _WIN32
#include "Handle.h"
#endif
namespace NWindows {
namespace NSynchronization {
class Uncopyable {
protected:
Uncopyable() {} // allow construction
~Uncopyable() {} // and destruction of derived objects...
private:
Uncopyable(const Uncopyable&); // ...but prevent copying
Uncopyable& operator=(const Uncopyable&);
};
class CBaseEvent // FIXME : private Uncopyable
{
protected:
::CEvent _object;
public:
bool IsCreated() { return Event_IsCreated(&_object) != 0; }
#ifdef _WIN32
operator HANDLE() { return _object.handle; }
#endif
CBaseEvent() { Event_Construct(&_object); }
~CBaseEvent() { Close(); }
WRes Close() { return Event_Close(&_object); }
#ifdef _WIN32
WRes Create(bool manualReset, bool initiallyOwn, LPCTSTR name = NULL,
LPSECURITY_ATTRIBUTES securityAttributes = NULL)
{
_object.handle = ::CreateEvent(securityAttributes, BoolToBOOL(manualReset),
BoolToBOOL(initiallyOwn), name);
if (_object.handle != 0)
return 0;
return ::GetLastError();
}
WRes Open(DWORD desiredAccess, bool inheritHandle, LPCTSTR name)
{
_object.handle = ::OpenEvent(desiredAccess, BoolToBOOL(inheritHandle), name);
if (_object.handle != 0)
return 0;
return ::GetLastError();
}
#endif
WRes Set() { return Event_Set(&_object); }
// bool Pulse() { return BOOLToBool(::PulseEvent(_handle)); }
WRes Reset() { return Event_Reset(&_object); }
WRes Lock() { return Event_Wait(&_object); }
};
class CManualResetEvent: public CBaseEvent
{
public:
WRes Create(bool initiallyOwn = false)
{
return ManualResetEvent_Create(&_object, initiallyOwn ? 1: 0);
}
WRes CreateIfNotCreated()
{
if (IsCreated())
return 0;
return ManualResetEvent_CreateNotSignaled(&_object);
}
#ifdef _WIN32
WRes CreateWithName(bool initiallyOwn, LPCTSTR name)
{
return CBaseEvent::Create(true, initiallyOwn, name);
}
#endif
};
class CAutoResetEvent: public CBaseEvent
{
public:
WRes Create()
{
return AutoResetEvent_CreateNotSignaled(&_object);
}
WRes CreateIfNotCreated()
{
if (IsCreated())
return 0;
return AutoResetEvent_CreateNotSignaled(&_object);
}
};
#ifdef _WIN32
class CObject: public CHandle
{
public:
WRes Lock(DWORD timeoutInterval = INFINITE)
{ return (::WaitForSingleObject(_handle, timeoutInterval) == WAIT_OBJECT_0 ? 0 : ::GetLastError()); }
};
class CMutex: public CObject
{
public:
WRes Create(bool initiallyOwn, LPCTSTR name = NULL,
LPSECURITY_ATTRIBUTES securityAttributes = NULL)
{
_handle = ::CreateMutex(securityAttributes, BoolToBOOL(initiallyOwn), name);
if (_handle != 0)
return 0;
return ::GetLastError();
}
WRes Open(DWORD desiredAccess, bool inheritHandle, LPCTSTR name)
{
_handle = ::OpenMutex(desiredAccess, BoolToBOOL(inheritHandle), name);
if (_handle != 0)
return 0;
return ::GetLastError();
}
WRes Release()
{
return ::ReleaseMutex(_handle) ? 0 : ::GetLastError();
}
};
class CMutexLock
{
CMutex *_object;
public:
CMutexLock(CMutex &object): _object(&object) { _object->Lock(); }
~CMutexLock() { _object->Release(); }
};
#endif
class CSemaphore : private Uncopyable
{
::CSemaphore _object;
public:
CSemaphore() { Semaphore_Construct(&_object); }
~CSemaphore() { Close(); }
WRes Close() { return Semaphore_Close(&_object); }
#ifdef _WIN32
operator HANDLE() { return _object.handle; }
#endif
WRes Create(UInt32 initiallyCount, UInt32 maxCount)
{
return Semaphore_Create(&_object, initiallyCount, maxCount);
}
WRes Release() { return Semaphore_Release1(&_object); }
WRes Release(UInt32 releaseCount) { return Semaphore_ReleaseN(&_object, releaseCount); }
WRes Lock() { return Semaphore_Wait(&_object); }
};
class CCriticalSection : private Uncopyable
{
::CCriticalSection _object;
public:
CCriticalSection() { CriticalSection_Init(&_object); }
~CCriticalSection() { CriticalSection_Delete(&_object); }
void Enter() { CriticalSection_Enter(&_object); }
void Leave() { CriticalSection_Leave(&_object); }
};
class CCriticalSectionLock : private Uncopyable
{
CCriticalSection *_object;
void Unlock() { _object->Leave(); }
public:
CCriticalSectionLock(CCriticalSection &object): _object(&object) {_object->Enter(); }
~CCriticalSectionLock() { Unlock(); }
};
}}
#ifndef _WIN32
#include "Synchronization2.h"
#endif
#endif
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