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Replace ReadBuffer to ReadBufferWithStrategy in all vacuum-involved places

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to implement limited-size "ring" of buffers for VACUUM for GIN & GIST
This commit is contained in:
Teodor Sigaev
2007-05-31 14:03:09 +00:00
parent 71fb7b9014
commit 54af876593
2 changed files with 21 additions and 16 deletions
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12
src/backend/access/gist/gistvacuum.c
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@ -8,7 +8,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/gist/gistvacuum.c,v 1.29 2007/01/05 22:19:22 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/gist/gistvacuum.c,v 1.30 2007/05/31 14:03:09 teodor Exp $
*
*-------------------------------------------------------------------------
*/
@ -35,6 +35,7 @@ typedef struct
Relation index;
MemoryContext opCtx;
GistBulkDeleteResult *result;
BufferAccessStrategy strategy;
} GistVacuum;
typedef struct
@ -83,7 +84,7 @@ gistDeleteSubtree(GistVacuum *gv, BlockNumber blkno)
Buffer buffer;
Page page;
buffer = ReadBuffer(gv->index, blkno);
buffer = ReadBufferWithStrategy(gv->index, blkno, gv->strategy);
LockBuffer(buffer, GIST_EXCLUSIVE);
page = (Page) BufferGetPage(buffer);
@ -303,7 +304,7 @@ gistVacuumUpdate(GistVacuum *gv, BlockNumber blkno, bool needunion)
vacuum_delay_point();
buffer = ReadBuffer(gv->index, blkno);
buffer = ReadBufferWithStrategy(gv->index, blkno, gv->strategy);
LockBuffer(buffer, GIST_EXCLUSIVE);
gistcheckpage(gv->index, buffer);
page = (Page) BufferGetPage(buffer);
@ -550,6 +551,7 @@ gistvacuumcleanup(PG_FUNCTION_ARGS)
initGISTstate(&(gv.giststate), rel);
gv.opCtx = createTempGistContext();
gv.result = stats;
gv.strategy = info->strategy;
/* walk through the entire index for update tuples */
res = gistVacuumUpdate(&gv, GIST_ROOT_BLKNO, false);
@ -600,7 +602,7 @@ gistvacuumcleanup(PG_FUNCTION_ARGS)
vacuum_delay_point();
buffer = ReadBuffer(rel, blkno);
buffer = ReadBufferWithStrategy(rel, blkno, info->strategy);
LockBuffer(buffer, GIST_SHARE);
page = (Page) BufferGetPage(buffer);
@ -704,7 +706,7 @@ gistbulkdelete(PG_FUNCTION_ARGS)
while (stack)
{
Buffer buffer = ReadBuffer(rel, stack->blkno);
Buffer buffer = ReadBufferWithStrategy(rel, stack->blkno, info->strategy);
Page page;
OffsetNumber i,
maxoff;