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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2005-08-20 23:26:37 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2005-08-20 23:26:37 +0000 |
| commit | 0007490e0964d194a606ba79bb11ae1642da3372 (patch) | |
| tree | 91db8ec49d812ba2c4307fcf858dfb7fd3890819 /src/include/access/clog.h | |
| parent | 2299ceab1cc5e141431f19eaf70c30f0d84eb28b (diff) | |
| download | postgresql-0007490e0964d194a606ba79bb11ae1642da3372.tar.gz postgresql-0007490e0964d194a606ba79bb11ae1642da3372.zip | |
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/access/clog.h')
| -rw-r--r-- | src/include/access/clog.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/include/access/clog.h b/src/include/access/clog.h index d03c5904f21..f04eb02a58d 100644 --- a/src/include/access/clog.h +++ b/src/include/access/clog.h @@ -6,7 +6,7 @@ * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/access/clog.h,v 1.13 2005/06/06 17:01:24 tgl Exp $ + * $PostgreSQL: pgsql/src/include/access/clog.h,v 1.14 2005/08/20 23:26:29 tgl Exp $ */ #ifndef CLOG_H #define CLOG_H @@ -31,7 +31,7 @@ typedef int XidStatus; extern void TransactionIdSetStatus(TransactionId xid, XidStatus status); extern XidStatus TransactionIdGetStatus(TransactionId xid); -extern int CLOGShmemSize(void); +extern Size CLOGShmemSize(void); extern void CLOGShmemInit(void); extern void BootStrapCLOG(void); extern void StartupCLOG(void); |