private static object CountIfs(List <Expression> p)
{
// get parameters
var ce = new CalcEngine();
long count = 0;
int numberOfCriteria = p.Count / 2;
long totalCount = 0;
// prepare criteria-parameters:
var criteriaRanges = new Tuple <object, List <object> > [numberOfCriteria];
for (int criteriaPair = 0; criteriaPair < numberOfCriteria; criteriaPair++)
{
var criteriaRange = p[criteriaPair * 2] as XObjectExpression;
var criterion = p[(criteriaPair * 2) + 1].Evaluate();
var criteriaRangeValues = new List <object>();
foreach (var value in criteriaRange)
{
criteriaRangeValues.Add(value);
}
criteriaRanges[criteriaPair] = new Tuple <object, List <object> >(
criterion,
criteriaRangeValues);
if (totalCount == 0)
{
totalCount = CalcEngineHelpers.GetTotalCellsCount(criteriaRange);
}
}
long processedCount = 0;
for (var i = 0; i < criteriaRanges[0].Item2.Count; i++)
{
if (criteriaRanges.All(criteriaPair => CalcEngineHelpers.ValueSatisfiesCriteria(
criteriaPair.Item2[i], criteriaPair.Item1, ce)))
{
count++;
}
processedCount++;
}
// Add count of empty cells outside the used range if they match criteria
if (criteriaRanges.All(criteriaPair => CalcEngineHelpers.ValueSatisfiesCriteria(
string.Empty, criteriaPair.Item1, ce)))
{
count += (totalCount - processedCount);
}
// done
return(count);
}
private static TransformManyBlock <DecodedBlockTx, Tuple <TxOutputKey, CompletionCount, DecodedBlockTx> > InitQueueUnspentTxLookup(CancellationToken cancelToken)
{
return(new TransformManyBlock <DecodedBlockTx, Tuple <TxOutputKey, CompletionCount, DecodedBlockTx> >(
blockTx =>
{
var tx = blockTx.Transaction;
var outputCount = tx.Outputs.Length;
var inputCount = !blockTx.IsCoinbase ? tx.Inputs.Length * 2 : 0;
var txOutputKeys = new Tuple <TxOutputKey, CompletionCount, DecodedBlockTx> [1 + outputCount + inputCount];
var completionCount = new CompletionCount(txOutputKeys.Length);
var keyIndex = 0;
// warm-up the UnspentTx entry that will be added for the new tx
txOutputKeys[keyIndex++] = Tuple.Create(new TxOutputKey(blockTx.Hash, uint.MaxValue), completionCount, blockTx);
// warm-up the TxOutput entries that will be added for each of the tx's outputs
for (var outputIndex = 0; outputIndex < tx.Outputs.Length; outputIndex++)
{
var txOutputKey = new TxOutputKey(blockTx.Hash, (uint)outputIndex);
txOutputKeys[keyIndex++] = Tuple.Create(txOutputKey, completionCount, blockTx);
}
// warm-up the previous UnspentTx and TxOutput entries that will be needed for each of the tx's inputs
if (!blockTx.IsCoinbase)
{
for (var inputIndex = 0; inputIndex < tx.Inputs.Length; inputIndex++)
{
var input = tx.Inputs[inputIndex];
// input's previous tx's UnspentTx entry
var txOutputKey = new TxOutputKey(input.PrevTxHash, uint.MaxValue);
txOutputKeys[keyIndex++] = Tuple.Create(txOutputKey, completionCount, blockTx);
// input's previous tx outputs's TxOutput entry
txOutputKey = input.PrevTxOutputKey;
txOutputKeys[keyIndex++] = Tuple.Create(txOutputKey, completionCount, blockTx);
}
}
Debug.Assert(txOutputKeys.All(x => x != null));
return txOutputKeys;
},
new ExecutionDataflowBlockOptions {
CancellationToken = cancelToken
}));
}
private static TransformManyBlock<DecodedBlockTx, Tuple<TxOutputKey, CompletionCount, DecodedBlockTx>> InitQueueUnspentTxLookup(CancellationToken cancelToken)
{
return new TransformManyBlock<DecodedBlockTx, Tuple<TxOutputKey, CompletionCount, DecodedBlockTx>>(
blockTx =>
{
var tx = blockTx.Transaction;
var outputCount = tx.Outputs.Length;
var inputCount = !blockTx.IsCoinbase ? tx.Inputs.Length * 2 : 0;
var txOutputKeys = new Tuple<TxOutputKey, CompletionCount, DecodedBlockTx>[1 + outputCount + inputCount];
var completionCount = new CompletionCount(txOutputKeys.Length);
var keyIndex = 0;
// warm-up the UnspentTx entry that will be added for the new tx
txOutputKeys[keyIndex++] = Tuple.Create(new TxOutputKey(blockTx.Hash, uint.MaxValue), completionCount, blockTx);
// warm-up the TxOutput entries that will be added for each of the tx's outputs
for (var outputIndex = 0; outputIndex < tx.Outputs.Length; outputIndex++)
{
var txOutputKey = new TxOutputKey(blockTx.Hash, (uint)outputIndex);
txOutputKeys[keyIndex++] = Tuple.Create(txOutputKey, completionCount, blockTx);
}
// warm-up the previous UnspentTx and TxOutput entries that will be needed for each of the tx's inputs
if (!blockTx.IsCoinbase)
{
for (var inputIndex = 0; inputIndex < tx.Inputs.Length; inputIndex++)
{
var input = tx.Inputs[inputIndex];
// input's previous tx's UnspentTx entry
var txOutputKey = new TxOutputKey(input.PrevTxHash, uint.MaxValue);
txOutputKeys[keyIndex++] = Tuple.Create(txOutputKey, completionCount, blockTx);
// input's previous tx outputs's TxOutput entry
txOutputKey = input.PrevTxOutputKey;
txOutputKeys[keyIndex++] = Tuple.Create(txOutputKey, completionCount, blockTx);
}
}
Debug.Assert(txOutputKeys.All(x => x != null));
return txOutputKeys;
},
new ExecutionDataflowBlockOptions { CancellationToken = cancelToken });
}
