[issue37754] Consistency of Unix's shared_memory implementation with windows

[Vinay Sharma]

Vinay Sharma <vinay0410sharma at gmail.com> added the comment:

Also, shm_open returns an integer file descriptor.
And when this file descriptor is passed too fcntl.flock (in macOS) it throws the following error:
OSError: [Errno 45] Operation not supported

Whereas, the same code works fine on linux.

Therefore, I have doubts whether Macos flock implementation support locking shared_memory files.

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