/// <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 T RunInSpan <T>(Func <T> func, string name, StartSpanOptions options = null)
{
using (StartSpan(name, options))
{
try
{
return(func());
}
catch (Exception e) when(SetStackTraceAndReturnFalse(e))
{
// This will never return as the condition above will always be false.
return(default);
/// <inheritdoc />
public void RunInSpan(Action action, string name, StartSpanOptions options = null)
{
using (StartSpan(name, options))
{
try
{
action();
}
catch (Exception e) when(SetStackTraceAndReturnFalse(e))
{
}
}
}
/// <inheritdoc />
public async Task <T> RunInSpanAsync <T>(Func <Task <T> > func, string name, StartSpanOptions options = null)
{
using (StartSpan(name, options))
{
try
{
return(await func().ConfigureAwait(false));
}
catch (Exception e) when(SetStackTraceAndReturnFalse(e))
{
// This will never return as the condition above will always be false.
return(await Task.FromResult(default(T)));
}
}
}
/// <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));
}
/// <inheritdoc /> public Task <T> RunInSpanAsync <T>(Func <Task <T> > func, string name, StartSpanOptions options = null) => _managedTracerGetter().RunInSpan(func, name, options);
/// <inheritdoc /> public void RunInSpan(Action action, string name, StartSpanOptions options = null) => _managedTracerGetter().RunInSpan(action, name, options);
/// <inheritdoc /> public ISpan StartSpan(string name, StartSpanOptions options = null) => _managedTracerGetter().StartSpan(name, options);
/// <summary> /// Calls <paramref name="func"/> and returns the result. /// </summary> public T RunInSpan <T>(Func <T> func, string name, StartSpanOptions options = null) => func();
/// <summary> /// Calls <paramref name="func"/> asynchronously and returns the result. /// </summary> public async Task <T> RunInSpanAsync <T>(Func <Task <T> > func, string name, StartSpanOptions options = null) => await func();
/// <summary> /// Calls <paramref name="action"/>. /// </summary> public void RunInSpan(Action action, string name, StartSpanOptions options = null) => action();
/// <summary> /// Does nothing. /// </summary> /// <returns>Returns an <see cref="IDisposable"/> that does nothing when disposed.</returns> public IDisposable StartSpan(string name, StartSpanOptions options = null) => new NullDisposable();
/// <summary> /// Calls <paramref name="func"/> asynchronously and returns the result. /// </summary> public Task <T> RunInSpanAsync <T>(Func <Task <T> > func, string name, StartSpanOptions options = null) => Task.Run(func);
/// <summary> /// Does nothing. /// </summary> /// <returns>Returns an <see cref="IDisposable"/> that does nothing when disposed.</returns> public ISpan StartSpan(string name, StartSpanOptions options = null) => new Span();
public void StartSpan(string name, StartSpanOptions options = null)
{
}
