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bpo-40094: Add os.waitstatus_to_exitcode() (GH-19201)

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Add os.waitstatus_to_exitcode() function to convert a wait status to an
exitcode.

Suggest waitstatus_to_exitcode() usage in the documentation when
appropriate.

Use waitstatus_to_exitcode() in:

* multiprocessing, os, subprocess and _bootsubprocess modules;
* test.support.wait_process();
* setup.py: run_command();
* and many tests.
This commit is contained in:
Victor Stinner 2020-04-01 18:49:29 +02:00 • committed by GitHub
parent 5dd836030e
commit 65a796e527
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GPG key ID: 4AEE18F83AFDEB23
18 changed files with 258 additions and 61 deletions
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18
Lib/subprocess.py
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@ -1838,23 +1838,17 @@ class Popen(object):
raise child_exception_type(err_msg)
def _handle_exitstatus(self, sts, _WIFSIGNALED=os.WIFSIGNALED,
_WTERMSIG=os.WTERMSIG, _WIFEXITED=os.WIFEXITED,
_WEXITSTATUS=os.WEXITSTATUS, _WIFSTOPPED=os.WIFSTOPPED,
_WSTOPSIG=os.WSTOPSIG):
def _handle_exitstatus(self, sts,
waitstatus_to_exitcode=os.waitstatus_to_exitcode,
_WIFSTOPPED=os.WIFSTOPPED,
_WSTOPSIG=os.WSTOPSIG):
"""All callers to this function MUST hold self._waitpid_lock."""
# This method is called (indirectly) by __del__, so it cannot
# refer to anything outside of its local scope.
if _WIFSIGNALED(sts):
self.returncode = -_WTERMSIG(sts)
elif _WIFEXITED(sts):
self.returncode = _WEXITSTATUS(sts)
elif _WIFSTOPPED(sts):
if _WIFSTOPPED(sts):
self.returncode = -_WSTOPSIG(sts)
else:
# Should never happen
raise SubprocessError("Unknown child exit status!")
self.returncode = waitstatus_to_exitcode(sts)
def _internal_poll(self, _deadstate=None, _waitpid=os.waitpid,
_WNOHANG=os.WNOHANG, _ECHILD=errno.ECHILD):