LbmSegment.h File Reference

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Classes
class	LbmSegment
	Class implementing bitmap segments. More...
Functions
	DEFINE_OPAQUE_INTEGER (LbmByteNumber, uint64_t)
	Offset into the byte representation of row ids, in which each row id is encoded as a single bit.
LbmByteNumber	ridToByteNumber (LcsRid rid)
	Returns the byte number of a rid.
LcsRid	byteNumberToRid (LbmByteNumber byteNum)
	Returns the rid corresponding to a byte offset.

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Function Documentation

LcsRid byteNumberToRid

(

LbmByteNumber

byteNum

)

[inline]

Returns the rid corresponding to a byte offset.

Definition at line 303 of file LbmSegment.h.

References LbmSegment::LbmOneByteSizeBitShift, and opaqueToInt().

Referenced by LbmSegmentReaderBase::advanceSegment(), LbmByteSegment::getEndRid(), LbmByteSegment::getSrid(), LbmSegmentReader::readCurrentByteSegment(), and LbmMinusExecStream::readMinuendInput().

{
    return LcsRid(
        opaqueToInt(byteNum) << LbmSegment::LbmOneByteSizeBitShift);
}

DEFINE_OPAQUE_INTEGER	(	LbmByteNumber	,
		uint64_t
	)

Offset into the byte representation of row ids, in which each row id is encoded as a single bit.

LbmByteNumber ridToByteNumber

(

LcsRid

rid

)

[inline]

Returns the byte number of a rid.

Definition at line 294 of file LbmSegment.h.

References LbmSegment::LbmOneByteSizeBitShift, and opaqueToInt().

Referenced by LbmSegmentReader::advanceToRid(), LbmUnionWorkspace::advanceToSrid(), LbmSegmentReaderBase::readBitmapSegTuple(), and LbmUnionWorkspace::setProductionLimit().

{
    return LbmByteNumber(
        opaqueToInt(rid) >> LbmSegment::LbmOneByteSizeBitShift);
}

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