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Red Hat Bugzilla – Attachment 583779 Details for
Bug 800300
locktests fail in "READ LOCK THE WHOLE FILE BYTE BY BYTE" test case.
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The Python script helps in testing "last unlock based unref'ing" in NLM.
simple.py (text/x-python), 667 bytes, created by
krishnan parthasarathi
on 2012-05-11 09:33:33 UTC
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Description:
The Python script helps in testing "last unlock based unref'ing" in NLM.
Filename:
MIME Type:
Creator:
krishnan parthasarathi
Created:
2012-05-11 09:33:33 UTC
Size:
667 bytes
patch
obsolete
>#! /usr/bin/env python >import struct, fcntl, os, time, sys >try: > filename = sys.argv[1] >except IndexError: > print "Usage: simpletest filename" > sys.exit (1) > >f = open(filename, "w+") > ># Lock phase >lockdata = struct.pack('hhllhh', fcntl.F_WRLCK, 0, 0, 1, 0, 0) >rv = fcntl.fcntl(f, fcntl.F_SETLK, lockdata) >lockdata = struct.pack('hhllhh', fcntl.F_WRLCK, 0, 1, 1, 0, 0) >rv = fcntl.fcntl(f, fcntl.F_SETLK, lockdata) > ># Unlock phase >lockdata = struct.pack('hhllhh', fcntl.F_UNLCK, 0, 0, 1, 0, 0) >rv = fcntl.fcntl(f, fcntl.F_SETLK, lockdata) >lockdata = struct.pack('hhllhh', fcntl.F_UNLCK, 0, 1, 1, 0, 0) >rv = fcntl.fcntl(f, fcntl.F_SETLK, lockdata)
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bug 800300
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