std mutex.natvis

<?xml version="1.0" encoding="utf-8"?>
<AutoVisualizer xmlns="http://schemas.microsoft.com/vstudio/debugger/natvis/2010">
  <Type Name="std::_Mutex_base">
    <Intrinsic Name="threadId" Expression="*(long*)((char*)&amp;_Mtx_storage+sizeof(_Mtx_storage)-8)"/>
    <Intrinsic Name="lockedCount" Expression="*(int*)((char*)&amp;_Mtx_storage+sizeof(_Mtx_storage)-4)"/>
    <Expand>
      <Item Name="[type]">*((int*)&amp;_Mtx_storage)</Item>
      <Item Name="[thread_id]">threadId()</Item>
      <Item Name="[count]">lockedCount()</Item>
    </Expand>
  </Type>
  
  <Type Name="std::mutex">
    <AlternativeType Name="std::recursive_mutex"/>
    <DisplayString Condition="lockedCount() == 0">mutex unlocked</DisplayString>
    <DisplayString>mutex locked({lockedCount()}) by thread (id={threadId()})</DisplayString>
    <Expand>
      <ExpandedItem>(_Mutex_base*)this</ExpandedItem>
    </Expand>
  </Type>

  <Type Name="std::timed_mutex">
    <AlternativeType Name="std::recursive_timed_mutex"/>
    <DisplayString Condition="_My_locked == 0">timed mutex unlocked</DisplayString>
    <DisplayString Optional="true">recursive timed mutex locked({_My_locked}) by thread (id={_My_owner._Id})</DisplayString>
    <DisplayString>timed mutex locked({-_My_locked})</DisplayString>
    <Expand>
      <ExpandedItem>_My_mutex</ExpandedItem>
      <Item Name="[locked]">(int)_My_locked</Item>
      <Item Name="[owner]" Optional="true">_My_owner</Item>
    </Expand>
  </Type>
</AutoVisualizer>