diff options
| author | Tom Lane | 2005-08-20 23:26:37 +0000 |
|---|---|---|
| committer | Tom Lane | 2005-08-20 23:26:37 +0000 |
| commit | 0007490e0964d194a606ba79bb11ae1642da3372 (patch) | |
| tree | 91db8ec49d812ba2c4307fcf858dfb7fd3890819 /src/include/utils | |
| parent | 2299ceab1cc5e141431f19eaf70c30f0d84eb28b (diff) | |
Convert the arithmetic for shared memory size calculation from 'int'
to 'Size' (that is, size_t), and install overflow detection checks in it.
This allows us to remove the former arbitrary restrictions on NBuffers
etc. It won't make any difference in a 32-bit machine, but in a 64-bit
machine you could theoretically have terabytes of shared buffers.
(How efficiently we could manage 'em remains to be seen.) Similarly,
num_temp_buffers, work_mem, and maintenance_work_mem can be set above
2Gb on a 64-bit machine. Original patch from Koichi Suzuki, additional
work by moi.
Diffstat (limited to 'src/include/utils')
| -rw-r--r-- | src/include/utils/hsearch.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/include/utils/hsearch.h b/src/include/utils/hsearch.h index b4bede7666e..0821610b9bb 100644 --- a/src/include/utils/hsearch.h +++ b/src/include/utils/hsearch.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/utils/hsearch.h,v 1.39 2005/06/26 23:32:34 tgl Exp $ + * $PostgreSQL: pgsql/src/include/utils/hsearch.h,v 1.40 2005/08/20 23:26:37 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -190,7 +190,7 @@ extern void *hash_search(HTAB *hashp, const void *keyPtr, HASHACTION action, bool *foundPtr); extern void hash_seq_init(HASH_SEQ_STATUS *status, HTAB *hashp); extern void *hash_seq_search(HASH_SEQ_STATUS *status); -extern long hash_estimate_size(long num_entries, Size entrysize); +extern Size hash_estimate_size(long num_entries, Size entrysize); extern long hash_select_dirsize(long num_entries); /* |