/// <summary>
/// Allocate a new counter with a given label.
/// </summary>
/// <param name="label"> to describe the counter. </param>
/// <returns> the id allocated for the counter. </returns>
public int Allocate(string label)
{
int counterId = NextCounterId();
if ((CounterOffset(counterId) + COUNTER_LENGTH) > ValuesBuffer.Capacity)
{
throw new ArgumentException("Unable to allocated counter, values buffer is full");
}
int recordOffset = MetaDataOffset(counterId);
if ((recordOffset + METADATA_LENGTH) > MetaDataBuffer.Capacity)
{
throw new ArgumentException("Unable to allocate counter, labels buffer is full");
}
MetaDataBuffer.PutInt(recordOffset + TYPE_ID_OFFSET, DEFAULT_TYPE_ID);
MetaDataBuffer.PutStringUtf8(recordOffset + LABEL_OFFSET, label, MAX_LABEL_LENGTH);
MetaDataBuffer.PutIntOrdered(recordOffset, RECORD_ALLOCATED);
return(counterId);
}
/// <summary>
/// Allocate a new counter with a given label.
///
/// The key function will be called with a buffer with the exact length of available key space
/// in the record for the user to store what they want for the key. No offset is required.
/// </summary>
/// <param name="label"> to describe the counter. </param>
/// <param name="typeId"> for the type of counter. </param>
/// <param name="keyFunc"> for setting the key value for the counter. </param>
/// <returns> the id allocated for the counter. </returns>
public int Allocate(string label, int typeId, Action <IMutableDirectBuffer> keyFunc)
{
var counterId = NextCounterId();
if (CounterOffset(counterId) + COUNTER_LENGTH > ValuesBuffer.Capacity)
{
throw new ArgumentException("Unable to allocated counter, values buffer is full");
}
var recordOffset = MetaDataOffset(counterId);
if (recordOffset + METADATA_LENGTH > MetaDataBuffer.Capacity)
{
throw new ArgumentException("Unable to allocate counter, labels buffer is full");
}
MetaDataBuffer.PutInt(recordOffset + TYPE_ID_OFFSET, typeId);
keyFunc(new UnsafeBuffer(MetaDataBuffer, recordOffset + KEY_OFFSET, MAX_KEY_LENGTH));
MetaDataBuffer.PutStringUtf8(recordOffset + LABEL_OFFSET, label, MAX_LABEL_LENGTH);
MetaDataBuffer.PutIntOrdered(recordOffset, RECORD_ALLOCATED);
return(counterId);
}