void SolicitedChannel::OnRequest(APDU& arAPDU)
{
AppControlField acf = arAPDU.GetControl();
SequenceInfo seq = SI_OTHER;
if (acf.SEQ == this->Sequence()) {
LOG_BLOCK(LEV_WARNING, "Received previous sequence");
seq = SI_PREV;
} else if (acf.SEQ == NextSeq(this->Sequence())) {
seq = SI_CORRECT;
}
mSequence = acf.SEQ;
mpAppLayer->mpUser->OnRequest(arAPDU, seq);
}
void Place(int S)
{
LevelCount[S]++;
Count++;
if (S >= 81) {
Succeed();
return;
}
int S2 = NextSeq(S);
SwapSeqEntries(S, S2);
int Square = Sequence[S];
int BlockIndex = InBlock[Square],
RowIndex = InRow[Square],
ColIndex = InCol[Square];
int Possibles = Block[BlockIndex] & Row[RowIndex] & Col[ColIndex];
while (Possibles) {
int valbit = Possibles & (-Possibles); // Lowest 1 bit in Possibles
Possibles &= ~valbit;
Entry[Square] = valbit;
Block[BlockIndex] &= ~valbit;
Row[RowIndex] &= ~valbit;
Col[ColIndex] &= ~valbit;
Place(S + 1);
Entry[Square] = BLANK; // Could be moved out of the loop
Block[BlockIndex] |= valbit;
Row[RowIndex] |= valbit;
Col[ColIndex] |= valbit;
}
SwapSeqEntries(S, S2);
}
