Message178957
> You could do both: use the O_CLOEXEC flag and do a fcntl() call on POSIX
This is the best-effort option. It was already discussed and rejected in the issue #12760.
We had a similar discussion for the PEP 418 on monotonic clock. The final decision is not only provide time.monotonic() if the OS supports monotonic clock.
Using an exception, a developer can develop its own best-effort function:
try:
fileobj = open(filename, "e")
except NotImplementedError:
fileobj = open(filename, "r")
# may also fail here if the fcntl module is missing
import fcntl
flags = fcntl.fcntl(self.socket, fcntl.F_GETFD)
fcntl.fcntl(fileobj, fcntl.F_SETFD, flags | fcntl.FD_CLOEXEC)
We may expose the best-effort function somewhere else, but not in open() which must be atomic in my opinion. |
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Date |
User |
Action |
Args |
2013-01-03 15:47:47 | vstinner | set | recipients:
+ vstinner, amaury.forgeotdarc, christian.heimes, neologix, sbt, alexey-smirnov |
2013-01-03 15:47:47 | vstinner | set | messageid: <1357228067.84.0.990971599555.issue16850@psf.upfronthosting.co.za> |
2013-01-03 15:47:47 | vstinner | link | issue16850 messages |
2013-01-03 15:47:47 | vstinner | create | |
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