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v0.5.1
v0.5.1
Revision 5b943ca1a99cede201e73b1b9b92ec7e96a08aea authored by Guido van Rossum on 30 December 1997, 04:29:30 UTC, committed by Guido van Rossum on 30 December 1997, 04:29:30 UTC
1 parent d01e9aa
lockfile.py
import struct, fcntl, FCNTL
def writelock(f):
_lock(f, FCNTL.F_WRLCK)
def readlock(f):
_lock(f, FCNTL.F_RDLCK)
def unlock(f):
_lock(f, FCNTL.F_UNLCK)
def _lock(f, op):
dummy = fcntl.fcntl(f.fileno(), FCNTL.F_SETLKW,
struct.pack('2h8l', op,
0, 0, 0, 0, 0, 0, 0, 0, 0))
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