[PATCH] D138952: Support: Add polling option to sys::Wait [WIP]

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


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Comment at: llvm/lib/Support/Unix/Program.inc:447
+          // Child's not done yet, resume it.
+          kill(PI.Pid, SIGCONT);
+        }
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aganea wrote:
> Out of curiosity (sorry I am not well versed into Linux APIs) -- who does stop the child process & when?
Above a signal handler was installed. The process receives SIGALRM after the timeout from the OS. The original path here then killed off the child; this instead sends the signal to continue


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https://reviews.llvm.org/D138952