/// <summary>
/// Creates a collection with the specified number of counters. Each counter in <c>[0, numberOfCounters - 1]</c>
/// may be accessed with <see cref="AddToCounterInternal"/> or <see cref="GetCounterValueInternal"/>.
/// </summary>
internal CounterCollection(ushort numberOfCounters, CounterCollection parent = null)
{
Contract.Requires(numberOfCounters > 0);
// Round up the per-processor 'row' size to cache line size. Since m_counters is row-major,
// this means that the processor rows are cache-aligned and so processors do not share cache lines.
int valuesPerProcessor = ((int)numberOfCounters + (ValuesPerCacheLine - 1)) & ~(ValuesPerCacheLine - 1);
m_counters = new long[AssumedLogicalProcessorCount, valuesPerProcessor];
m_durations = new long[AssumedLogicalProcessorCount, valuesPerProcessor];
m_parent = parent;
}
/// <summary>
/// Copy constructor.
/// </summary>
internal CounterCollection(CounterCollection collectionToClone)
: this(collectionToClone.m_counters, collectionToClone.m_durations, collectionToClone.m_parent)
{
}
private CounterCollection(long[,] counters, long[,] durations, CounterCollection parent)
{
m_counters = (long[, ])counters.Clone();
m_durations = (long[, ])durations.Clone();
m_parent = parent;
}
/// <nodoc />
internal Counter(CounterCollection collection, ushort id, CounterType counterType)
{
m_collection = collection;
m_id = id;
m_counterType = counterType;
}