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When the fork server is enabled, not all IPC child processes are children of the fork server; currently, process types other than content processes are still spawned directly. This means that we need to `waitid` or `waitpid` them when they exit in order to not leak zombie processes. Specifically, we can just try to `waitid` the process, and then if that fails with `ECHILD` we can assume it was a fork server child and fall back to the previous `kill(pid, 0)` workaround. This patch does that, but only if the fork server is active; otherwise we maintain the current behavior of only waiting for child processes directly. Differential Revision: https://phabricator.services.mozilla.com/D168756 |
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| pull-chromium.py | ||