[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).
https://reviews.llvm.org/D33778
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