Readers / writers file lock Python helper class
This library was created in order to ease the synchronization of several processes using shared resources, like a caching directory or a SQLite database. All of them can use the resources, but only one should update them.
The library is being used in several INB projects.
Example of a shared lock using context:
import datetime
import os
import time
from RWFileLock import RWFileLock
lock = RWFileLock("/tmp/rwfilelock.lock")
with lock.shared_lock():
print(
f"[{datetime.datetime.now().isoformat()}] Got shlock {os.getpid()}"
)
time.sleep(7)
print(
f"[{datetime.datetime.now().isoformat()}] Releasing shlock {os.getpid()}"
)
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