block.h File Reference

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Data Structures
struct	BlockIdData

Macros
#define	InvalidBlockNumber   ((BlockNumber) 0xFFFFFFFF)
#define	MaxBlockNumber   ((BlockNumber) 0xFFFFFFFE)

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

Functions
static bool	BlockNumberIsValid (BlockNumber blockNumber)
static void	BlockIdSet (BlockIdData *blockId, BlockNumber blockNumber)
static bool	BlockIdEquals (const BlockIdData *blockId1, const BlockIdData *blockId2)
static BlockNumber	BlockIdGetBlockNumber (const BlockIdData *blockId)

Macro Definition Documentation

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.

Function Documentation

BlockIdEquals()

static bool BlockIdEquals ( const BlockIdData *  blockId1, const BlockIdData *  blockId2  )

inlinestatic

Definition at line 92 of file block.h.

{
    return (blockId1->bi_hi == blockId2->bi_hi &&
            blockId1->bi_lo == blockId2->bi_lo);
}

References BlockIdData::bi_hi, and BlockIdData::bi_lo.

BlockIdGetBlockNumber()

static BlockNumber BlockIdGetBlockNumber ( const BlockIdData *  blockId )

inlinestatic

Definition at line 103 of file block.h.

{
    return (((BlockNumber) blockId->bi_hi) << 16) | ((BlockNumber) blockId->bi_lo);
}

References BlockIdData::bi_hi, and BlockIdData::bi_lo.

Referenced by gin_desc(), ginRedoInsert(), and ItemPointerGetBlockNumberNoCheck().

BlockIdSet()

static void BlockIdSet ( BlockIdData *  blockId, BlockNumber  blockNumber  )

inlinestatic

Definition at line 81 of file block.h.

{
    blockId->bi_hi = blockNumber >> 16;
    blockId->bi_lo = blockNumber & 0xffff;
}

References BlockIdData::bi_hi, and BlockIdData::bi_lo.

Referenced by ginPlaceToPage(), ItemPointerSet(), ItemPointerSetBlockNumber(), and ItemPointerSetInvalid().

BlockNumberIsValid()

static bool BlockNumberIsValid ( BlockNumber  blockNumber )

inlinestatic

Definition at line 71 of file block.h.

{
    return blockNumber != InvalidBlockNumber;
}

References InvalidBlockNumber.

Referenced by _bt_insert_parent(), _bt_insertonpg(), _bt_unlink_halfdead_page(), _hash_addovflpage(), _hash_doinsert(), _hash_finish_split(), _hash_first(), _hash_freeovflpage(), _hash_next(), _hash_readnext(), _hash_readprev(), _hash_splitbucket(), _hash_squeezebucket(), autovac_report_workitem(), bottomup_sort_and_shrink(), brin_bloom_get_ndistinct(), brinRevmapDesummarizeRange(), bt_child_highkey_check(), btree_xlog_unlink_page(), DropRelationBuffers(), DropRelationsAllBuffers(), hash_xlog_add_ovfl_page(), hashbucketcleanup(), heapam_scan_sample_next_block(), main(), pg_truncate_visibility_map(), PredicateLockPageSplit(), PrefetchBuffer(), PrefetchSharedBuffer(), RelationTruncate(), smgr_redo(), smgrDoPendingSyncs(), and vacuum_error_callback().