diff options
Diffstat (limited to 'src/backend/storage/page/bufpage.c')
| -rw-r--r-- | src/backend/storage/page/bufpage.c | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/src/backend/storage/page/bufpage.c b/src/backend/storage/page/bufpage.c index 02528a30e67..d208a80d5cc 100644 --- a/src/backend/storage/page/bufpage.c +++ b/src/backend/storage/page/bufpage.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/storage/page/bufpage.c,v 1.36 2001/02/06 06:24:00 vadim Exp $ + * $Header: /cvsroot/pgsql/src/backend/storage/page/bufpage.c,v 1.37 2001/03/22 03:59:47 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -59,14 +59,14 @@ PageInit(Page page, Size pageSize, Size specialSize) void PageZero(Page page) { - MemSet((char*)page + ((PageHeader)page)->pd_lower, 0, - ((PageHeader)page)->pd_special - ((PageHeader)page)->pd_lower); + MemSet((char *) page + ((PageHeader) page)->pd_lower, 0, + ((PageHeader) page)->pd_special - ((PageHeader) page)->pd_lower); } /* ---------------- * PageAddItem * - * Add an item to a page. Return value is offset at which it was + * Add an item to a page. Return value is offset at which it was * inserted, or InvalidOffsetNumber if there's not room to insert. * * If offsetNumber is valid and <= current max offset in the page, @@ -75,7 +75,7 @@ PageZero(Page page) * If offsetNumber is not valid, then assign one by finding the first * one that is both unused and deallocated. * - * !!! ELOG(ERROR) IS DISALLOWED HERE !!! + * !!! ELOG(ERROR) IS DISALLOWED HERE !!! * * ---------------- */ @@ -125,10 +125,12 @@ PageAddItem(Page page, } else { + /* - * Don't actually do the shuffle till we've checked free space! + * Don't actually do the shuffle till we've checked free + * space! */ - needshuffle = true; /* need to increase "lower" */ + needshuffle = true; /* need to increase "lower" */ } } else @@ -162,7 +164,8 @@ PageAddItem(Page page, return InvalidOffsetNumber; /* - * OK to insert the item. First, shuffle the existing pointers if needed. + * OK to insert the item. First, shuffle the existing pointers if + * needed. */ if (needshuffle) { @@ -284,12 +287,12 @@ PageRepairFragmentation(Page page, OffsetNumber *unused) for (i = 0; i < nline; i++) { lp = ((PageHeader) page)->pd_linp + i; - if ((*lp).lp_flags & LP_DELETE) /* marked for deletion */ + if ((*lp).lp_flags & LP_DELETE) /* marked for deletion */ (*lp).lp_flags &= ~(LP_USED | LP_DELETE); if ((*lp).lp_flags & LP_USED) nused++; else if (unused) - unused[i - nused] = (OffsetNumber)i; + unused[i - nused] = (OffsetNumber) i; } if (nused == 0) @@ -347,7 +350,7 @@ PageRepairFragmentation(Page page, OffsetNumber *unused) pfree(itemidbase); } - return(nline - nused); + return (nline - nused); } /* @@ -377,16 +380,16 @@ PageGetFreeSpace(Page page) void IndexPageCleanup(Buffer buffer) { - Page page = (Page) BufferGetPage(buffer); - ItemId lp; - OffsetNumber maxoff; - OffsetNumber i; + Page page = (Page) BufferGetPage(buffer); + ItemId lp; + OffsetNumber maxoff; + OffsetNumber i; maxoff = PageGetMaxOffsetNumber(page); for (i = 0; i < maxoff; i++) { lp = ((PageHeader) page)->pd_linp + i; - if ((*lp).lp_flags & LP_DELETE) /* marked for deletion */ + if ((*lp).lp_flags & LP_DELETE) /* marked for deletion */ { PageIndexTupleDelete(page, i + 1); maxoff--; |