public ReadSpec GetReadSpec(RCSymbol symbol, int limit, bool force, bool fill)
{
ReadSpec result = new ReadSpec(this, limit, force, fill);
if (limit == 0)
{
limit = int.MaxValue;
}
for (int i = 0; i < symbol.Count; ++i)
{
CountRecord current = Get(symbol[i]);
if (current != null)
{
// Start searching from the first known record.
result.Add(symbol[i], current.start, limit);
}
else
{
// In this case we know there is no data so any search should begin
// from the end of time.
result.Add(symbol[i], _dispatched.Count, limit);
}
}
return(result);
}
public void Write(RCSymbolScalar scalar, int line)
{
CountRecord record;
Dictionary <RCSymbolScalar, CountRecord> map = _records;
// It's a delete
if (line < 0)
{
if (map.TryGetValue(scalar, out record))
{
record.deleted = true;
}
// map.Remove (scalar);
scalar = scalar.Previous;
while (scalar != null)
{
if (map.TryGetValue(scalar, out record))
{
--record.count;
--record.total;
record.end = Math.Abs(line);
}
scalar = scalar.Previous;
}
}
else
{
while (scalar != null)
{
if (!map.TryGetValue(scalar, out record))
{
record = new CountRecord(scalar, map == _records);
map[scalar] = record;
record.start = line;
}
// I have to take stuff into account here when clearing...
// But How? Can I just blow away the counters?
++record.count;
++record.total;
record.end = line;
scalar = scalar.Previous;
map = _abstracts;
}
_dispatched.Add(false);
}
}
public void Dispatch(RCSymbolScalar scalar, long line)
{
Dictionary <RCSymbolScalar, CountRecord> map = _records;
while (scalar != null)
{
// I assume you wouldn't try to dispatch if the symbol was not represented...
CountRecord record = map[scalar];
if (line == record.start)
{
++record.start;
}
--record.count;
scalar = scalar.Previous;
map = _abstracts;
}
_dispatched[(int)line] = true;
}
public Satisfy CanSatisfy(ReadSpec spec)
{
if (spec.IgnoreDispatchedRows)
{
if (spec.SymbolUnlimited)
{
foreach (SpecRecord specRecord in spec)
{
// CountRecord countRecord = Get (specRecord.symbol);
CountRecord countRecord = Get(specRecord);
// The symbol is missing entirely.
if (countRecord == null)
{
continue;
}
// If there are zero rows for the symbol then we are never satsified.
if (countRecord.count > 0)
{
return(Satisfy.Yes);
}
}
return(Satisfy.No);
}
else
{
foreach (SpecRecord specRecord in spec)
{
// CountRecord countRecord = Get (specRecord.symbol);
CountRecord countRecord = Get(specRecord);
// The symbol is missing entirely.
if (countRecord == null)
{
return(Satisfy.No);
}
// If there are zero rows for the symbol then we are never satsified.
if (countRecord.count == 0)
{
return(Satisfy.No);
}
// We will accept any number of them.
if (specRecord.limit == int.MaxValue)
{
continue;
}
// There are not enough records to satisfy the spec for this symbol.
if (countRecord.count < specRecord.limit)
{
return(Satisfy.No);
}
}
}
}
else
{
if (spec.SymbolUnlimited)
{
foreach (SpecRecord specRecord in spec)
{
// CountRecord countRecord = Get (specRecord.symbol);
CountRecord countRecord = Get(specRecord);
// The symbol is missing entirely.
if (countRecord == null)
{
continue;
}
// Notice that while dispatching we look at count. Here at total.
if (countRecord.total > 0)
{
if (specRecord.start == 0)
{
return(Satisfy.Yes);
}
else
{
return(Satisfy.Maybe);
}
}
}
return(Satisfy.No);
}
else
{
if (spec.RecordCount > 0)
{
foreach (SpecRecord specRecord in spec)
{
CountRecord countRecord = Get(specRecord);
// The symbol is missing entirely.
if (countRecord == null)
{
return(Satisfy.No);
}
// Check there are enough records to satisfy the spec for this symbol.
if (specRecord.start == 0)
{
// We will accept any number of them.
if (specRecord.limit == int.MaxValue)
{
continue;
}
if (countRecord.total < specRecord.limit)
{
return(Satisfy.No);
}
}
else
{
// This is for the case where you use read or last from an arbitrary start
// point.
// Since we don't track where the symbols are in this counter, we won't
// know whether
// The query would be satisfied. We just have to do it and see.
return(Satisfy.Maybe);
}
}
}
else
{
return(Satisfy.No);
}
}
}
return(Satisfy.Yes);
}
