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// column.inl --
// $Id$
// This is part of Metakit, the homepage is http://www.equi4.com/metakit/
/** @file
* Inlined members of the column classes
*/
/////////////////////////////////////////////////////////////////////////////
// c4_Column
d4_inline int c4_Column::fSegIndex(t4_i32 offset_)
{
// limited by max array: 1 << (kSegBits + 15) with 16-bit ints
return (int) (offset_ >> kSegBits);
}
d4_inline t4_i32 c4_Column::fSegOffset(int index_)
{
return (t4_i32) index_ << kSegBits;
}
d4_inline int c4_Column::fSegRest(t4_i32 offset_)
{
return ((int) offset_ & kSegMask);
}
d4_inline c4_Persist* c4_Column::Persist() const
{
return _persist;
}
d4_inline t4_i32 c4_Column::Position() const
{
return _position;
}
d4_inline t4_i32 c4_Column::ColSize() const
{
return _size;
}
d4_inline bool c4_Column::IsDirty() const
{
return _dirty;
}
d4_inline void c4_Column::SetBuffer(t4_i32 length_)
{
SetLocation(0, length_);
_dirty = true;
}
d4_inline const t4_byte* c4_Column::LoadNow(t4_i32 offset_)
{
if (_segments.GetSize() == 0)
SetupSegments();
if (offset_ >= _gap)
offset_ += _slack;
t4_byte* ptr = (t4_byte*) _segments.GetAt(fSegIndex(offset_));
return ptr + fSegRest(offset_);
}
/////////////////////////////////////////////////////////////////////////////
// c4_ColIter
d4_inline c4_ColIter::c4_ColIter (c4_Column& col_, t4_i32 offset_, t4_i32 limit_)
: _column (col_), _limit (limit_), _pos (offset_), _len (0), _ptr (0)
{
}
d4_inline const t4_byte* c4_ColIter::BufLoad() const
{
return _ptr;
}
d4_inline t4_byte* c4_ColIter::BufSave()
{
return _column.CopyNow(_pos);
}
d4_inline int c4_ColIter::BufLen() const
{
return _len;
}
/////////////////////////////////////////////////////////////////////////////
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