diff options
Diffstat (limited to 'db2/include/db_page.h')
| -rw-r--r-- | db2/include/db_page.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/db2/include/db_page.h b/db2/include/db_page.h index 30f6072fc3..e1846cbbbd 100644 --- a/db2/include/db_page.h +++ b/db2/include/db_page.h @@ -1,10 +1,10 @@ /*- * See the file LICENSE for redistribution information. * - * Copyright (c) 1996, 1997 + * Copyright (c) 1996, 1997, 1998 * Sleepycat Software. All rights reserved. * - * @(#)db_page.h 10.13 (Sleepycat) 9/24/97 + * @(#)db_page.h 10.15 (Sleepycat) 5/1/98 */ #ifndef _DB_PAGE_H_ @@ -29,6 +29,14 @@ #define PGNO_INVALID 0 /* Metadata page number, therefore illegal. */ #define PGNO_ROOT 1 /* Root is page #1. */ +/* + * When we create pages in mpool, we ask mpool to clear some number of bytes + * in the header. This number must be at least as big as the regular page + * headers and cover enough of the btree and hash meta-data pages to obliterate + * the magic and version numbers. + */ +#define DB_PAGE_CLEAR_LEN 32 + /************************************************************************ BTREE METADATA PAGE LAYOUT ************************************************************************/ |