Remove process suspend (#4586)

src/Microsoft.TestPlatform.Extensions.BlameDataCollector/ProcessCodeMethods.cs

@@ -31,7 +31,8 @@ public static void Suspend(this Process process)
 
  if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
  {
- SuspendWindows(process);
+ // There is no supported or documented API to suspend a process. If there was you should call it here.
+ // SuspendWindows(process);
  }
  else
  {
@@ -70,40 +71,6 @@ public static List<ProcessTreeNode> GetProcessTree(this Process process)
  return new List<ProcessTreeNode> { new ProcessTreeNode { Process = process, Level = 0 } }.Concat(acc.Where(a => a.Level > 0)).ToList();
  }
 
- internal static void SuspendWindows(Process process)
- {
- EqtTrace.Verbose($"ProcessCodeMethods.Suspend: Suspending process {process.Id} - {process.ProcessName}.");
- NtSuspendProcess(process.Handle);
- }
-
- internal static void SuspendLinuxMacOs(Process process)
- {
- try
- {
- var output = new StringBuilder();
- var err = new StringBuilder();
- Process ps = new();
- ps.StartInfo.FileName = "kill";
- ps.StartInfo.Arguments = $"-STOP {process.Id}";
- ps.StartInfo.UseShellExecute = false;
- ps.StartInfo.RedirectStandardOutput = true;
- ps.OutputDataReceived += (_, e) => output.Append(e.Data);
- ps.ErrorDataReceived += (_, e) => err.Append(e.Data);
- ps.Start();
- ps.BeginOutputReadLine();
- ps.WaitForExit(5_000);
-
- if (!err.ToString().IsNullOrWhiteSpace())
- {
- EqtTrace.Verbose($"ProcessCodeMethods.SuspendLinuxMacOs: Error suspending process {process.Id} - {process.ProcessName}, {err}.");
- }
- }
- catch (Exception ex)
- {
- EqtTrace.Verbose($"ProcessCodeMethods.GetParentPidMacOs: Error getting parent of process {process.Id} - {process.ProcessName}, {ex}.");
- }
- }
-
  /// <summary>
  /// Returns the parent id of a process or -1 if it fails.
  /// </summary>
@@ -248,6 +215,7 @@ private static extern int NtQueryInformationProcess(
  int processInformationLength,
  out int returnLength);
 
- [DllImport("ntdll.dll", SetLastError = true)]
- private static extern IntPtr NtSuspendProcess(IntPtr processHandle);
+ // This call is undocumented api, and should not be used.
+ //[DllImport("ntdll.dll", SetLastError = true)]
+ //private static extern IntPtr NtSuspendProcess(IntPtr processHandle);
 }