/// <summary>Clears the content of current logical context.</summary>
/// <param name="free">Free the full slot.</param>
public static void Clear(bool free)
{
if (free)
{
MappedDiagnosticsLogicalContext.SetThreadLocal((IDictionary <string, object>)null);
}
else
{
MappedDiagnosticsLogicalContext.GetLogicalThreadDictionary(true).Clear();
}
}
/// <summary>
/// Simulate ImmutableDictionary behavior (which is not yet part of all .NET frameworks).
/// In future the real ImmutableDictionary could be used here to minimize memory usage and copying time.
/// </summary>
/// <param name="clone">Must be true for any subsequent dictionary modification operation</param>
/// <returns></returns>
private static IDictionary <string, object> GetLogicalThreadDictionary(bool clone = false)
{
IDictionary <string, object> newValue = MappedDiagnosticsLogicalContext.GetThreadLocal();
if (newValue == null)
{
if (!clone)
{
return(MappedDiagnosticsLogicalContext.EmptyDefaultDictionary);
}
newValue = (IDictionary <string, object>) new Dictionary <string, object>();
MappedDiagnosticsLogicalContext.SetThreadLocal(newValue);
}
else if (clone)
{
newValue = (IDictionary <string, object>) new Dictionary <string, object>(newValue);
MappedDiagnosticsLogicalContext.SetThreadLocal(newValue);
}
return(newValue);
}
