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Commit95a03e9

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Another round of code cleanup on bufmgr. Use BM_VALID flag to keep track
of whether we have successfully read data into a buffer; this makes theerror behavior a bit more transparent (IMHO anyway), and also makes itwork correctly for local buffers which don't use Start/TerminateBufferIO.Collapse three separate functions for writing a shared buffer into one.This overlaps a bit with cleanups that Neil proposed awhile back, butseems not to have committed yet.
1 parentaeee856 commit95a03e9

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6 files changed

+326
-426
lines changed

6 files changed

+326
-426
lines changed

‎src/backend/storage/buffer/buf_init.c‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@
88
*
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*
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* IDENTIFICATION
11-
* $PostgreSQL: pgsql/src/backend/storage/buffer/buf_init.c,v 1.63 2004/04/19 23:27:17 tgl Exp $
11+
* $PostgreSQL: pgsql/src/backend/storage/buffer/buf_init.c,v 1.64 2004/04/21 18:06:30 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -133,11 +133,11 @@ InitBufferPool(void)
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134134
buf->bufNext=i+1;
135135

136-
CLEAR_BUFFERTAG(&(buf->tag));
136+
CLEAR_BUFFERTAG(buf->tag);
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buf->buf_id=i;
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139139
buf->data=MAKE_OFFSET(block);
140-
buf->flags=(BM_DELETED |BM_VALID);
140+
buf->flags=0;
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buf->refcount=0;
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buf->io_in_progress_lock=LWLockAssign();
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buf->cntx_lock=LWLockAssign();

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