/// <inheritdoc />
public IDisposable StartSpan(string name, StartSpanOptions options = null)
{
GaxPreconditions.CheckNotNull(name, nameof(name));
options = options ?? StartSpanOptions.Create();
TraceSpan span = new TraceSpan();
span.SpanId = _spanIdFactory.NextId();
span.Kind = options.SpanKind.Convert();
span.Name = name;
span.StartTime = Timestamp.FromDateTime(DateTime.Now.ToUniversalTime());
lock (_stackLock)
{
if (_traceStack.Count != 0)
{
span.ParentSpanId = _traceStack.Peek().SpanId;
}
else if (_rootSpanParentId != null)
{
span.ParentSpanId = (ulong)_rootSpanParentId;
}
_traceStack.Push(span);
AnnotateSpan(options.Labels);
}
return(new Span(this));
}
/// <inheritdoc />
public IDisposable StartSpan(string name, StartSpanOptions options = null)
{
GaxPreconditions.CheckNotNull(name, nameof(name));
options = options ?? StartSpanOptions.Create();
var currentStack = TraceStack;
var span = new TraceSpan
{
SpanId = _spanIdFactory.NextId(),
Kind = options.SpanKind.Convert(),
Name = name,
StartTime = Timestamp.FromDateTime(DateTime.UtcNow),
ParentSpanId = GetCurrentSpanId(currentStack).GetValueOrDefault()
};
AnnotateSpan(span, options.Labels);
TraceStack = currentStack.Push(span);
Interlocked.Increment(ref _openSpanCount);
return(new Span(this));
}