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Remove dead code from the lemon-generated parser. Better testing

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of the sqlite3_file_control() interface, and in particular make sure
the interface works on :memory: databases. (CVS 4738)

FossilOrigin-Name: 83ca4fc7dc18d6deca58fe4181905eb9754e03da
This commit is contained in:
drh
2008-01-22 14:50:16 +00:00
parent bf2609781b
commit 5517625960
9 changed files with 113 additions and 52 deletions
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40
src/util.c
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@@ -14,7 +14,7 @@
** This file contains functions for allocating memory, comparing
** strings, and stuff like that.
**
** $Id: util.c,v 1.214 2008/01/18 14:08:25 drh Exp $
** $Id: util.c,v 1.215 2008/01/22 14:50:17 drh Exp $
*/
#include "sqliteInt.h"
#include <stdarg.h>
@@ -443,25 +443,6 @@ int sqlite3GetInt32(const char *zNum, int *pValue){
return 1;
}
/*
** Check to make sure we have a valid db pointer. This test is not
** foolproof but it does provide some measure of protection against
** misuse of the interface such as passing in db pointers that are
** NULL or which have been previously closed. If this routine returns
** TRUE it means that the db pointer is invalid and should not be
** dereferenced for any reason. The calling function should invoke
** SQLITE_MISUSE immediately.
*/
int sqlite3SafetyCheck(sqlite3 *db){
int magic;
if( db==0 ) return 1;
magic = db->magic;
if( magic!=SQLITE_MAGIC_CLOSED &&
magic!=SQLITE_MAGIC_OPEN &&
magic!=SQLITE_MAGIC_BUSY ) return 1;
return 0;
}
/*
** The variable-length integer encoding is as follows:
**
@@ -705,3 +686,22 @@ int sqlite3SafetyOff(sqlite3 *db){
return 1;
}
}
/*
** Check to make sure we have a valid db pointer. This test is not
** foolproof but it does provide some measure of protection against
** misuse of the interface such as passing in db pointers that are
** NULL or which have been previously closed. If this routine returns
** TRUE it means that the db pointer is invalid and should not be
** dereferenced for any reason. The calling function should invoke
** SQLITE_MISUSE immediately.
*/
int sqlite3SafetyCheck(sqlite3 *db){
int magic;
if( db==0 ) return 1;
magic = db->magic;
if( magic!=SQLITE_MAGIC_CLOSED &&
magic!=SQLITE_MAGIC_OPEN &&
magic!=SQLITE_MAGIC_BUSY ) return 1;
return 0;
}