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Added locking hacks for AIX

This commit is contained in:
Guido van Rossum 1996-08-20 20:23:34 +00:00
parent f85de8a440
commit 0f6a3bf490
1 changed files with 8 additions and 1 deletions
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9
Lib/posixfile.py
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@ -174,11 +174,15 @@ class _posixfile_:
elif len(args) > 3:
raise TypeError, 'too many arguments'
# Hack by davem@magnet.com to get locking to go on freebsd
# Hack by davem@magnet.com to get locking to go on freebsd;
# additions for AIX by Vladimir.Marangozov@imag.fr
import sys, os
if sys.platform == 'freebsd2':
flock = struct.pack('lxxxxlxxxxlhh', \
l_start, l_len, os.getpid(), l_type, l_whence)
elif sys.platform in ['aix3', 'aix4']:
flock = struct.pack('hhlllii', \
l_type, l_whence, l_start, l_len, 0, 0, 0)
else:
flock = struct.pack('hhllhh', \
l_type, l_whence, l_start, l_len, 0, 0)
@ -189,6 +193,9 @@ class _posixfile_:
if sys.platform == 'freebsd2':
l_start, l_len, l_pid, l_type, l_whence = \
struct.unpack('lxxxxlxxxxlhh', flock)
elif sys.platform in ['aix3', 'aix4']:
l_type, l_whence, l_start, l_len, l_sysid, l_pid, l_vfs = \
struct.unpack('hhlllii', flock)
else:
l_type, l_whence, l_start, l_len, l_sysid, l_pid = \
struct.unpack('hhllhh', flock)