Another round of code cleanup on bufmgr. Use BM_VALID flag to keep track

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of whether we have successfully read data into a buffer; this makes the
error behavior a bit more transparent (IMHO anyway), and also makes it
work 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, but
seems not to have committed yet.

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This commit is contained in:

Tom Lane

2004-04-21 18:06:30 +00:00

parent aeee856564

commit 95a03e9cdf

6 changed files with 331 additions and 431 deletions

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668

src/backend/storage/buffer/bufmgr.c

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