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