================
@@ -111,8 +111,10 @@ Error 
RunInTerminalLauncherCommChannel::WaitUntilDebugAdaptorAttaches(
     return message.takeError();
 }
 
-Error RunInTerminalLauncherCommChannel::NotifyPid() {
-  return m_io.SendJSON(RunInTerminalMessagePid(getpid()).ToJSON());
+Error RunInTerminalLauncherCommChannel::NotifyPid(lldb::pid_t pid) {
+  if (pid == 0)
+    pid = getpid();
----------------
SuibianP wrote:

I used this as kind of a dynamic default argument. The original codepath always 
used `getpid()` as the PID to be sent through the pipe, but this does not work 
for Windows where the PID of the target differs from that of the launcher.

https://github.com/llvm/llvm-project/pull/121269/files#diff-2de0ddf6c080497da43990b05d21e6229d309f51cf269ba7e3860a677f507905R4903-R4905

Maybe an explicit argument without such implicit default would be more readable?

https://github.com/llvm/llvm-project/pull/121269
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