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| author | Thomas Moreau <thomas.moreau.2010@gmail.com> | 2019-05-20 19:37:05 (GMT) |
|---|---|---|
| committer | Antoine Pitrou <antoine@python.org> | 2019-05-20 19:37:05 (GMT) |
| commit | c09a9f56c08d80567454cae6f78f738a89e1ae94 (patch) | |
| tree | 7f00233cfa994ba74ca952d371ae85651690602a /Lib/multiprocessing/popen_forkserver.py | |
| parent | 5ae1c84bcd13b766989fc3f1e1c851e7bd4c1faa (diff) | |
| download | cpython-c09a9f56c08d80567454cae6f78f738a89e1ae94.zip cpython-c09a9f56c08d80567454cae6f78f738a89e1ae94.tar.gz cpython-c09a9f56c08d80567454cae6f78f738a89e1ae94.tar.bz2 | |
bpo-36888: Add multiprocessing.parent_process() (GH-13247)
Diffstat (limited to 'Lib/multiprocessing/popen_forkserver.py')
| -rw-r--r-- | Lib/multiprocessing/popen_forkserver.py | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Lib/multiprocessing/popen_forkserver.py b/Lib/multiprocessing/popen_forkserver.py index a51a277..a56eb9b 100644 --- a/Lib/multiprocessing/popen_forkserver.py +++ b/Lib/multiprocessing/popen_forkserver.py @@ -49,7 +49,11 @@ class Popen(popen_fork.Popen): set_spawning_popen(None) self.sentinel, w = forkserver.connect_to_new_process(self._fds) - self.finalizer = util.Finalize(self, os.close, (self.sentinel,)) + # Keep a duplicate of the data pipe's write end as a sentinel of the + # parent process used by the child process. + _parent_w = os.dup(w) + self.finalizer = util.Finalize(self, util.close_fds, + (_parent_w, self.sentinel)) with open(w, 'wb', closefd=True) as f: f.write(buf.getbuffer()) self.pid = forkserver.read_signed(self.sentinel) |