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bpo-36888: Add multiprocessing.parent_process() (GH-13247)

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Thomas Moreau 2019-05-20 21:37:05 +02:00 • committed by Antoine Pitrou
parent 5ae1c84bcd
commit c09a9f56c0
12 changed files with 155 additions and 20 deletions
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8
Lib/multiprocessing/popen_fork.py
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@ -66,16 +66,20 @@ class Popen(object):
def _launch(self, process_obj):
code = 1
parent_r, child_w = os.pipe()
child_r, parent_w = os.pipe()
self.pid = os.fork()
if self.pid == 0:
try:
os.close(parent_r)
code = process_obj._bootstrap()
os.close(parent_w)
code = process_obj._bootstrap(parent_sentinel=child_r)
finally:
os._exit(code)
else:
os.close(child_w)
self.finalizer = util.Finalize(self, os.close, (parent_r,))
os.close(child_r)
self.finalizer = util.Finalize(self, util.close_fds,
(parent_r, parent_w,))
self.sentinel = parent_r
def close(self):