block.h File Reference

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Data Structures
struct	BlockIdData

Macros
#define	InvalidBlockNumber   ((BlockNumber) 0xFFFFFFFF)
#define	MaxBlockNumber   ((BlockNumber) 0xFFFFFFFE)
#define	BlockNumberIsValid(blockNumber)    ((BlockNumber) (blockNumber) != InvalidBlockNumber)
#define	BlockIdIsValid(blockId)    PointerIsValid(blockId)
#define	BlockIdSet(blockId, blockNumber)
#define	BlockIdCopy(toBlockId, fromBlockId)
#define	BlockIdEquals(blockId1, blockId2)
#define	BlockIdGetBlockNumber(blockId)    ((((BlockNumber) (blockId)->bi_hi) << 16) | ((BlockNumber) (blockId)->bi_lo))

Typedefs
typedef uint32	BlockNumber
typedef struct BlockIdData	BlockIdData
typedef BlockIdData *	BlockId

Macro Definition Documentation

BlockIdCopy

#define BlockIdCopy	(		toBlockId,
			fromBlockId
	)

Value:

( \
    (toBlockId)->bi_hi = (fromBlockId)->bi_hi, \
    (toBlockId)->bi_lo = (fromBlockId)->bi_lo \
)

Definition at line 94 of file block.h.

BlockIdEquals

#define BlockIdEquals	(		blockId1,
			blockId2
	)

Value:

    ((blockId1)->bi_hi == (blockId2)->bi_hi && \
     (blockId1)->bi_lo == (blockId2)->bi_lo)

Definition at line 104 of file block.h.

BlockIdGetBlockNumber

#define BlockIdGetBlockNumber

(

blockId

)

((((BlockNumber) (blockId)->bi_hi) << 16) | ((BlockNumber) (blockId)->bi_lo))

Definition at line 112 of file block.h.

BlockIdIsValid

#define BlockIdIsValid

(

blockId

)

PointerIsValid(blockId)

Definition at line 77 of file block.h.

BlockIdSet

#define BlockIdSet	(		blockId,
			blockNumber
	)

Value:

( \
    (blockId)->bi_hi = (blockNumber) >> 16, \
    (blockId)->bi_lo = (blockNumber) & 0xffff \
)

Definition at line 84 of file block.h.

BlockNumberIsValid

#define BlockNumberIsValid

(

blockNumber

)

((BlockNumber) (blockNumber) != InvalidBlockNumber)

Definition at line 70 of file block.h.

InvalidBlockNumber

#define InvalidBlockNumber   ((BlockNumber) 0xFFFFFFFF)

Definition at line 33 of file block.h.

MaxBlockNumber

#define MaxBlockNumber   ((BlockNumber) 0xFFFFFFFE)

Definition at line 35 of file block.h.

Typedef Documentation

BlockId

typedef BlockIdData* BlockId

Definition at line 59 of file block.h.

BlockIdData

typedef struct BlockIdData BlockIdData

BlockNumber

typedef uint32 BlockNumber

Definition at line 31 of file block.h.