[Lldb-commits] [PATCH] D33778: Add a NativeProcessProtocol Factory class

Pavel Labath via Phabricator via lldb-commits lldb-commits at lists.llvm.org
Mon Jul 3 08:36:09 PDT 2017

labath marked 6 inline comments as done.
labath added inline comments.

Comment at: source/Plugins/Process/NetBSD/NativeProcessNetBSD.cpp:85
+  int wstatus;
+  ::pid_t wpid = llvm::sys::RetryAfterSignal(-1, ::waitpid, pid, &wstatus, 0);
+  assert(wpid == pid);
krytarowski wrote:
> We can set BSD specific: `-1` -> `WAIT_ANY`.
> I verified that it exists on NetBSD, FreeBSD and OpenBSD.
I think that's semantically incorrect, WAIT_ANY means "any process" when used in the pid argument of waitpid. The -1 here is the "failure value" returned by waitpid, and that one is documented as -1 even on netbsd.

Comment at: source/Plugins/Process/NetBSD/NativeProcessNetBSD.cpp:87
+  assert(wpid == pid);
+  (void)wpid;
+  if (wpid != pid || !WIFSTOPPED(wstatus)) {
krytarowski wrote:
> Is this line needed?
Yes, otherwise you get unused variable warnings in no-asserts build. (Or at least you would get, if I had removed the `wpid != pid` check like I was planning to).


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