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Begin implementing a new system of upper bounds on the capabilities

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of SQLite.  By clearly defining the upper bounds, we make those
upper bounds explicitly testable.  This check-in is just infrastructure.
The upper bounds are not yet enforced. (CVS 3941)

FossilOrigin-Name: 93b623b232a43f78d2c90bfa2389dd5b28ad7280
This commit is contained in:
drh
2007-05-08 01:08:49 +00:00
parent 02d858364b
commit c797d4dccd
18 changed files with 633 additions and 465 deletions
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38
src/sqliteInt.h
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@@ -11,10 +11,12 @@
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.558 2007/05/07 09:32:45 danielk1977 Exp $
** @(#) $Id: sqliteInt.h,v 1.559 2007/05/08 01:08:49 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_
#include "limits.h"
#if defined(SQLITE_TCL) || defined(TCLSH)
# include <tcl.h>
@@ -81,24 +83,6 @@
# define SQLITE_BIG_DBL (1e99)
#endif
/*
** The maximum number of in-memory pages to use for the main database
** table and for temporary tables. Internally, the MAX_PAGES and
** TEMP_PAGES macros are used. To override the default values at
** compilation time, the SQLITE_DEFAULT_CACHE_SIZE and
** SQLITE_DEFAULT_TEMP_CACHE_SIZE macros should be set.
*/
#ifdef SQLITE_DEFAULT_CACHE_SIZE
# define MAX_PAGES SQLITE_DEFAULT_CACHE_SIZE
#else
# define MAX_PAGES 2000
#endif
#ifdef SQLITE_DEFAULT_TEMP_CACHE_SIZE
# define TEMP_PAGES SQLITE_DEFAULT_TEMP_CACHE_SIZE
#else
# define TEMP_PAGES 500
#endif
/*
** OMIT_TEMPDB is set to 1 if SQLITE_OMIT_TEMPDB is defined, or 0
** afterward. Having this macro allows us to cause the C compiler
@@ -124,20 +108,6 @@
*/
#define NULL_DISTINCT_FOR_UNIQUE 1
/*
** The maximum number of attached databases. This must be at least 2
** in order to support the main database file (0) and the file used to
** hold temporary tables (1). And it must be less than 32 because
** we use a bitmask of databases with a u32 in places (for example
** the Parse.cookieMask field).
*/
#define MAX_ATTACHED 10
/*
** The maximum value of a ?nnn wildcard that the parser will accept.
*/
#define SQLITE_MAX_VARIABLE_NUMBER 999
/*
** The "file format" number is an integer that is incremented whenever
** the VDBE-level file format changes. The following macros define the
@@ -1345,7 +1315,7 @@ struct Parse {
u32 writeMask; /* Start a write transaction on these databases */
u32 cookieMask; /* Bitmask of schema verified databases */
int cookieGoto; /* Address of OP_Goto to cookie verifier subroutine */
int cookieValue[MAX_ATTACHED+2]; /* Values of cookies to verify */
int cookieValue[SQLITE_MAX_ATTACHED+2]; /* Values of cookies to verify */
#ifndef SQLITE_OMIT_SHARED_CACHE
int nTableLock; /* Number of locks in aTableLock */
TableLock *aTableLock; /* Required table locks for shared-cache mode */