| Current Path : /proc/thread-self/root/usr/local/lib/python3.8/dist-packages/portalocker/ |
Linux ift1.ift-informatik.de 5.4.0-216-generic #236-Ubuntu SMP Fri Apr 11 19:53:21 UTC 2025 x86_64 |
| Current File : //proc/thread-self/root/usr/local/lib/python3.8/dist-packages/portalocker/constants.py |
'''
Locking constants
Lock types:
- `LOCK_EX` exclusive lock
- `LOCK_SH` shared lock
Lock flags:
- `LOCK_NB` non-blocking
Manually unlock, only needed internally
- `LOCK_UN` unlock
'''
import os
# The actual tests will execute the code anyhow so the following code can
# safely be ignored from the coverage tests
if os.name == 'nt': # pragma: no cover
import msvcrt
LOCK_EX = 0x1 #: exclusive lock
LOCK_SH = 0x2 #: shared lock
LOCK_NB = 0x4 #: non-blocking
LOCK_UN = msvcrt.LK_UNLCK #: unlock
elif os.name == 'posix': # pragma: no cover
import fcntl
LOCK_EX = fcntl.LOCK_EX #: exclusive lock
LOCK_SH = fcntl.LOCK_SH #: shared lock
LOCK_NB = fcntl.LOCK_NB #: non-blocking
LOCK_UN = fcntl.LOCK_UN #: unlock
else: # pragma: no cover
raise RuntimeError('PortaLocker only defined for nt and posix platforms')