/// <summary>
/// Called at the beginning of a code block that we intend to measure the performance of,
/// the returned <see cref="IDisposable"/> should be called at the end of that code block
/// for the measurement to persist, failure to do so will result in an exception when calling
/// <see cref="GetReport"/>
/// </summary>
public IDisposable Block(string name)
{
if (_isDisabled)
{
return(_doNothing);
}
else
{
_overhead.Start();
// Add (or retrieve) a sub-block
var subBlock = _current.AddSubBlock(name);
// Push the state in the stack
_stack.Push(_current);
_current = subBlock;
var scope = new CodeBlockScope(_overhead, onDispose: (long time) =>
{
subBlock.T += time;
// Pop the stack when we're done with a block
_current = _stack.Pop();
});
_overhead.Stop();
return(scope);
}
}
/// <summary>
/// Adds a step with the specified name
/// </summary>
/// <param name="name">The name of the step</param>
public CodeBlockInstrumentation AddSubBlock(string name)
{
return(_dic.GetOrAdd(name, (name) =>
{
var instrumentation = new CodeBlockInstrumentation {
N = name
};
// Add to the breakdown
_breakdown ??= new List <CodeBlockInstrumentation>();
_breakdown.Add(instrumentation);
return instrumentation;
}));
}