JetBrains.Common.Timeline.EventLog.Interface

Structures of CSwitch etw event https://learn.microsoft.com/en-us/windows/win32/etw/cswitch

IsValid flag must be checked before using Diff value. It is introduce to support subtraction of dotTrace Performance call tree offsets from different call tree groups. Such offsets cannot be subtracted, so user function must fallback to reading data via batch readers to skip inner nodes.