genesis-3d_engine/Engine/foundation/threading/android/androidEvent.h

/****************************************************************************
Copyright (c) 2011-2013,WebJet Business Division,CYOU
 
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****************************************************************************/
#ifndef __ANDROIDEVENT_H__
#define __ANDROIDEVENT_H__
#include "linuxevent.h"

//------------------------------------------------------------------------------
namespace Android
{

class AndroidEvent
{
public:
    /// constructor
    AndroidEvent(bool manualReset = false);
    /// destructor
    ~AndroidEvent();
    /// signal the event
    void Signal();
    /// reset the event (only if manual reset)
    void Reset();
    /// wait for the event to become signalled
    void Wait() const;
    /// wait for the event with timeout in millisecs
    bool WaitTimeout(int ms) const;
    /// check if event is signalled
    bool Peek() const;

private:
    
	HANDLE event;
};

//------------------------------------------------------------------------------
/**
*/
inline
AndroidEvent::AndroidEvent(bool manualReset)
{
	this->event = Linux_CreateEvent(NULL, manualReset, false, NULL);
	n_assert(0 != this->event);
}

//------------------------------------------------------------------------------
/**
*/
inline
AndroidEvent::~AndroidEvent()
{
	Linux_CloseHandle(this->event);
	this->event = 0;
}

//------------------------------------------------------------------------------
/**
*/
inline void
AndroidEvent::Signal()
{
   Linux_SetEvent(this->event);
}

//------------------------------------------------------------------------------
/**
*/
inline void
AndroidEvent::Reset()
{
   Linux_ResetEvent(this->event);
}

//------------------------------------------------------------------------------
/**
*/
inline void
AndroidEvent::Wait() const
{
	Linux_WaitForSingleObject(this->event, INFINITE);
}

//------------------------------------------------------------------------------
/**
    Waits for the event to become signaled with a specified timeout
    in milli seconds. If the method times out it will return false,
    if the event becomes signalled within the timeout it will return 
    true.
*/
inline bool
AndroidEvent::WaitTimeout(int timeoutInMilliSec) const
{
   int res = Linux_WaitForSingleObject(this->event, timeoutInMilliSec);
   return (WAIT_TIMEOUT == res) ? false : true;
}

//------------------------------------------------------------------------------
/**
    This checks if the event is signalled and returnes immediately.
*/
inline bool
AndroidEvent::Peek() const
{
	int res = Linux_WaitForSingleObject(this->event, 0);
	return (WAIT_TIMEOUT == res) ? false : true;
}


} // namespace Win360

#endif
//------------------------------------------------------------------------------