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Select the default page size for new databases based on the sector-size and IOCAP flags. (CVS 4286)

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FossilOrigin-Name: 13dda2e8e879835c21e539ba3ff8f96face1af4c
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danielk1977
2007-08-24 11:52:28 +00:00
parent f78799e637
commit 9663b8f92d
9 changed files with 124 additions and 35 deletions
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13
src/sqliteLimit.h
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@@ -12,7 +12,7 @@
**
** This file defines various limits of what SQLite can process.
**
** @(#) $Id: sqliteLimit.h,v 1.1 2007/06/19 15:23:48 drh Exp $
** @(#) $Id: sqliteLimit.h,v 1.2 2007/08/24 11:52:29 danielk1977 Exp $
*/
/*
@@ -130,6 +130,17 @@
# define SQLITE_DEFAULT_PAGE_SIZE 1024
#endif
/*
** Ordinarily, if no value is explicitly provided, SQLite creates databases
** with page size SQLITE_DEFAULT_PAGE_SIZE. However, based on certain
** device characteristics (sector-size and atomic write() support),
** SQLite may choose a larger value. This constant is the maximum value
** SQLite will choose on it's own.
*/
#ifndef SQLITE_MAX_DEFAULT_PAGE_SIZE
# define SQLITE_MAX_DEFAULT_PAGE_SIZE 8192
#endif
/* Maximum page size. The upper bound on this value is 32768. This a limit
** imposed by the necessity of storing the value in a 2-byte unsigned integer
** and the fact that the page size must be a power of 2.