/* skip unused keys. */
void BtreeCursor::skipUnusedKeys() {
int u = 0;
while ( 1 ) {
if ( !ok() )
break;
BtreeBucket *b = bucket.btree();
_KeyNode& kn = b->k(keyOfs);
if ( kn.isUsed() )
break;
bucket = b->advance(bucket, keyOfs, direction, "skipUnusedKeys");
u++;
}
if ( u > 10 )
OCCASIONALLY log() << "btree unused skipped:" << u << '\n';
}
/* skip unused keys. */
bool BtreeCursor::skipUnusedKeys( bool mayJump ) {
int u = 0;
while ( 1 ) {
if ( !ok() )
break;
BtreeBucket *b = bucket.btree();
_KeyNode& kn = b->k(keyOfs);
if ( kn.isUsed() )
break;
bucket = b->advance(bucket, keyOfs, direction, "skipUnusedKeys");
u++;
if ( mayJump && ( u % 10 == 0 ) ) {
skipOutOfRangeKeysAndCheckEnd();
}
}
if ( u > 10 )
OCCASIONALLY log() << "btree unused skipped:" << u << '\n';
return u;
}