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Overview
| Comment: | An alternative way of implementing the assert() that verifies the relative values of KeyInfo.nField+KeyInfo.nXField and the number of columns in a record. This version of the assert() only fires when the high-speed comparison routines are used - which is to say it only fires when the constraint actually matters. |
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| Timelines: | family | ancestors | descendants | both | tkt-f97c4637 |
| Files: | files | file ages | folders |
| SHA1: |
bf744b4908b096f301565f6a4ea8d566 |
| User & Date: | drh 2015-01-19 19:48:52.667 |
Context
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2015-01-19
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| 20:57 | Fix the assert() of the previous check-in so that it works even when compiled without SQLITE_DEBUG. (check-in: 38868f845e user: drh tags: tkt-f97c4637) | |
| 19:48 | An alternative way of implementing the assert() that verifies the relative values of KeyInfo.nField+KeyInfo.nXField and the number of columns in a record. This version of the assert() only fires when the high-speed comparison routines are used - which is to say it only fires when the constraint actually matters. (check-in: bf744b4908 user: drh tags: tkt-f97c4637) | |
| 15:05 | Enhance the command-line shell with the ability to set the SQLITE_TESTCTRL_NEVER_CORRUPT flag using: ".testctrl never_corrupt 1". (check-in: 824328f983 user: drh tags: trunk) | |
Changes
Changes to src/vdbeaux.c.
| ︙ | ︙ | |||
3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 | if( desiredResult>0 && rc>0 ) return 1; if( CORRUPT_DB ) return 1; if( pKeyInfo->db->mallocFailed ) return 1; return 0; } #endif /* ** Both *pMem1 and *pMem2 contain string values. Compare the two values ** using the collation sequence pColl. As usual, return a negative , zero ** or positive value if *pMem1 is less than, equal to or greater than ** *pMem2, respectively. Similar in spirit to "rc = (*pMem1) - (*pMem2);". */ static int vdbeCompareMemString( | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380 3381 3382 3383 3384 3385 3386 3387 3388 3389 3390 3391 |
if( desiredResult>0 && rc>0 ) return 1;
if( CORRUPT_DB ) return 1;
if( pKeyInfo->db->mallocFailed ) return 1;
return 0;
}
#endif
#if SQLITE_DEBUG
/*
** Count the number of fields (a.k.a. columns) in the record given by
** pKey,nKey. The verify that this count is less than or equal to the
** limit given by pKeyInfo->nField + pKeyInfo->nXField.
**
** If this constraint is not satisfied, it means that the high-speed
** vdbeRecordCompareInt() and vdbeRecordCompareString() routines will
** not work correctly. If this assert() ever fires, it probably means
** that the KeyInfo.nField or KeyInfo.nXField values were computed
** incorrectly.
*/
static void vdbeAssertFieldCountWithinLimits(
int nKey, const void *pKey, /* The record to verify */
const KeyInfo *pKeyInfo /* Compare size with this KeyInfo */
){
int nField = 0;
u32 szHdr;
u32 idx;
u32 notUsed;
const unsigned char *aKey = (const unsigned char*)pKey;
if( CORRUPT_DB ) return;
idx = getVarint32(aKey, szHdr);
assert( szHdr<=nKey );
while( idx<szHdr ){
idx += getVarint32(aKey+idx, notUsed);
nField++;
}
assert( nField <= pKeyInfo->nField+pKeyInfo->nXField );
}
#endif
/*
** Both *pMem1 and *pMem2 contain string values. Compare the two values
** using the collation sequence pColl. As usual, return a negative , zero
** or positive value if *pMem1 is less than, equal to or greater than
** *pMem2, respectively. Similar in spirit to "rc = (*pMem1) - (*pMem2);".
*/
static int vdbeCompareMemString(
|
| ︙ | ︙ | |||
3756 3757 3758 3759 3760 3761 3762 3763 3764 3765 3766 3767 3768 3769 |
int serial_type = ((const u8*)pKey1)[1];
int res;
u32 y;
u64 x;
i64 v = pPKey2->aMem[0].u.i;
i64 lhs;
assert( (*(u8*)pKey1)<=0x3F || CORRUPT_DB );
switch( serial_type ){
case 1: { /* 1-byte signed integer */
lhs = ONE_BYTE_INT(aKey);
testcase( lhs<0 );
break;
}
| > | 3789 3790 3791 3792 3793 3794 3795 3796 3797 3798 3799 3800 3801 3802 3803 |
int serial_type = ((const u8*)pKey1)[1];
int res;
u32 y;
u64 x;
i64 v = pPKey2->aMem[0].u.i;
i64 lhs;
vdbeAssertFieldCountWithinLimits(nKey1, pKey1, pPKey2->pKeyInfo);
assert( (*(u8*)pKey1)<=0x3F || CORRUPT_DB );
switch( serial_type ){
case 1: { /* 1-byte signed integer */
lhs = ONE_BYTE_INT(aKey);
testcase( lhs<0 );
break;
}
|
| ︙ | ︙ | |||
3843 3844 3845 3846 3847 3848 3849 3850 3851 3852 3853 3854 3855 3856 |
int nKey1, const void *pKey1, /* Left key */
UnpackedRecord *pPKey2 /* Right key */
){
const u8 *aKey1 = (const u8*)pKey1;
int serial_type;
int res;
getVarint32(&aKey1[1], serial_type);
if( serial_type<12 ){
res = pPKey2->r1; /* (pKey1/nKey1) is a number or a null */
}else if( !(serial_type & 0x01) ){
res = pPKey2->r2; /* (pKey1/nKey1) is a blob */
}else{
int nCmp;
| > | 3877 3878 3879 3880 3881 3882 3883 3884 3885 3886 3887 3888 3889 3890 3891 |
int nKey1, const void *pKey1, /* Left key */
UnpackedRecord *pPKey2 /* Right key */
){
const u8 *aKey1 = (const u8*)pKey1;
int serial_type;
int res;
vdbeAssertFieldCountWithinLimits(nKey1, pKey1, pPKey2->pKeyInfo);
getVarint32(&aKey1[1], serial_type);
if( serial_type<12 ){
res = pPKey2->r1; /* (pKey1/nKey1) is a number or a null */
}else if( !(serial_type & 0x01) ){
res = pPKey2->r2; /* (pKey1/nKey1) is a blob */
}else{
int nCmp;
|
| ︙ | ︙ |