genesis-3d_engine/Engine/foundation/util/osx/osxguid.h

/****************************************************************************
Copyright (c) 2010, Radon Labs GmbH
Copyright (c) 2011-2013,WebJet Business Division,CYOU
 
http://www.genesis-3d.com.cn

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#pragma once

#include "core/types.h"
#include "util/string.h"
#include "core/sysfunc.h"

//------------------------------------------------------------------------------
namespace OSX
{
class OSXGuid
{
public:
    /// override new operator
    void* operator new(size_t s);
    /// override delete operator
    void operator delete(void* ptr);
    
    /// constructor
    OSXGuid();
    /// copy constructor
    OSXGuid(const OSXGuid& rhs);
    /// construct from raw binary data as returned by AsBinary()
    OSXGuid(const unsigned char* ptr, SizeT size);
    /// assignement operator
    void operator=(const OSXGuid& rhs);
    /// assignment operator from string
    void operator=(const Util::String& rhs);
    /// equality operator
    bool operator==(const OSXGuid& rhs) const;
    /// inequlality operator
    bool operator!=(const OSXGuid& rhs) const;
    /// less-then operator
    bool operator<(const OSXGuid& rhs) const;
    /// less-or-equal operator
    bool operator<=(const OSXGuid& rhs) const;
    /// greater-then operator
    bool operator>(const OSXGuid& rhs) const;
    /// greater-or-equal operator
    bool operator>=(const OSXGuid& rhs) const;
    /// return true if the contained guid is valid (not NIL)
    bool IsValid() const;
    /// generate a new guid
    void Generate();
    /// construct from string representation
    static OSXGuid FromString(const Util::String& str);
    /// construct from binary representation
    static OSXGuid FromBinary(const unsigned char* ptr, SizeT numBytes);
    /// get as string
    Util::String AsString() const;
    /// get pointer to binary data
    SizeT AsBinary(const unsigned char*& outPtr) const;
    /// return the size of the binary representation in bytes
    static SizeT BinarySize();
    /// get a hash code (compatible with Util::HashTable)
    IndexT HashCode() const;
    
private:
    uuid_t uuid;
};
    
//------------------------------------------------------------------------------
/**
 */
__forceinline void*
OSXGuid::operator new(size_t size)
{
    #if NEBULA3_DEBUG
    n_assert(size == sizeof(OSXGuid));
    #endif
    
    #if NEBULA3_OBJECTS_USE_MEMORYPOOL
    return Memory::ObjectPoolAllocator->Alloc(size);
    #else
    return Memory::Alloc(Memory::ObjectHeap, size);
    #endif
}
    
//------------------------------------------------------------------------------
/**
 */
__forceinline void
OSXGuid::operator delete(void* ptr)
{
    #if NEBULA3_OBJECTS_USE_MEMORYPOOL
    return Memory::ObjectPoolAllocator->Free(ptr, sizeof(OSXGuid));
    #else
    return Memory::Free(Memory::ObjectHeap, ptr);
    #endif
}
    
//------------------------------------------------------------------------------
/**
 */
inline
OSXGuid::OSXGuid()
{
    uuid_clear(this->uuid);
}
    
//------------------------------------------------------------------------------
/**
 */
inline
OSXGuid::OSXGuid(const OSXGuid& rhs)
{
    uuid_copy(this->uuid, rhs.uuid);
}
    
//------------------------------------------------------------------------------
/**
 */
inline
OSXGuid::OSXGuid(const unsigned char* ptr, SizeT size)
{
    n_assert((0 != ptr) && (size == sizeof(uuid_t)));
    uuid_copy(this->uuid, *(uuid_t*)ptr);
}
    
//------------------------------------------------------------------------------
/**
 */
inline SizeT
OSXGuid::BinarySize()
{
    return sizeof(uuid_t);
}
    
} // namespace Win32
//------------------------------------------------------------------------------