MSBuild -如何创建“临界区”

<UsingTask TaskName="Lock" TaskFactory="CodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.Core.dll">
  <ParameterGroup>
    <ResourceName ParameterType="System.String" Required="true" />
    <Timeout ParameterType="System.Int32" Required="false" />
    <Task ParameterType="System.Threading.Tasks.Task" Output="true" Required="false" />
  </ParameterGroup>
  <Task>
    <Code Type="Fragment" Language="cs">
      <![CDATA[
        System.Threading.Monitor.Enter(ResourceName);
        Task = System.Threading.Tasks.Task.Factory.StartNew(() =>
        {
          try
          {
            // 执行需要保护的代码
          }
          finally
          {
            System.Threading.Monitor.Exit(ResourceName);
          }
        });
      ]]>
    </Code>
  </Task>
</UsingTask>

<Target Name="MyTarget">
  <Lock ResourceName="MyCriticalResource">
    <Exec Command="mycommand.exe" />
  </Lock>
</Target>