Buffer<T,Allocator>::Buffer(CONST T* pData, SIZE_T N)
{
m_pData = 0;
m_Length = 0;
Allocate(N);
CopyObjects(m_pData, pData, N);
}
VOID Buffer<T,Allocator>::Resize(SIZE_T N)
{
SIZE_T NewLength = AllocateSize(N);
T* pData = m_Allocator.New(NewLength);
CopyObjects(pData, m_pData, Min(m_Length, NewLength));
m_Allocator.Delete(m_pData);
m_pData = pData;
m_Length = NewLength;
}
VOID Queue<T,ElementTraits,ThreadingModel>::Enqueue( CONST T& Item )
{
if (m_Tail < m_Head)
{
if (m_Head < m_Buffer.Length())
m_Buffer[m_Head++] = Item;
else
{
if (m_Tail > 0)
m_Head = 0;
else
{
if (m_Buffer.Length() < 16)
m_Buffer.Resize( 16 );
else
m_Buffer.Resize( (SIZE_T)((FLOAT)(m_Buffer.Length()+1) * 1.5) );
}
m_Buffer[m_Head++] = Item;
}
}
else if (m_Tail > m_Head)
m_Buffer[m_Head++] = Item;
else if (m_Tail == m_Head)
{
if (m_Tail == 0)
{
if (m_Buffer.Length() < 16)
m_Buffer.Resize( 16 );
m_Buffer[m_Head++] = Item;
}
else
{
SIZE_T TailSize = m_Buffer.Length() - m_Tail;
Buffer<T> NewBuffer( (SIZE_T)((FLOAT)(m_Buffer.Length()+1) * 1.5) );
CopyObjects( &NewBuffer[0] , &m_Buffer[m_Tail], TailSize );
CopyObjects( &NewBuffer[TailSize] , &m_Buffer[0], m_Head );
m_Tail = 0;
m_Head = m_Buffer.Length();
m_Buffer = NewBuffer;
m_Buffer[m_Head++] = Item;
}
}
}
void appCopyPaste::CopyObject(const MenuObjC* objData,
const AllocPageC* objPageAllocator)
{
if ((objData == 0) || (!objData->IsCopyable()))
return;
MenuObjArray objs(1);
objs[0] = const_cast<MenuObjC*>(objData);
CopyObjects(objs, objPageAllocator);
}
Buffer<T,Allocator>& Buffer<T,Allocator>::operator= (CONST Buffer& B)
{
Allocate(B.Length());
CopyObjects(m_pData, B.m_pData, m_Length);
return *this;
}
