Mercurial > hg > mercurial-crew-with-dirclash
annotate mercurial/lock.py @ 1504:0fcdd126642d
fix file opening for some commands on Windows
Using file as opener in debug commands won't work on Windows, as the
index and data files needs to be opened in binary mode.
author | Christian Boos <cboos@neuf.fr> |
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date | Thu, 03 Nov 2005 14:24:07 -0800 |
parents | 6d5a62a549fa |
children | abfab59fce79 |
rev | line source |
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161 | 1 # lock.py - simple locking scheme for mercurial |
2 # | |
3 # Copyright 2005 Matt Mackall <mpm@selenic.com> | |
4 # | |
5 # This software may be used and distributed according to the terms | |
6 # of the GNU General Public License, incorporated herein by reference. | |
7 | |
8 import os, time | |
422
10c43444a38e
[PATCH] Enables lock work under the other 'OS'
mpm@selenic.com
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diff
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9 import util |
161 | 10 |
11 class LockHeld(Exception): | |
12 pass | |
13 | |
14 class lock: | |
1062 | 15 def __init__(self, file, wait=1): |
161 | 16 self.f = file |
17 self.held = 0 | |
18 self.wait = wait | |
19 self.lock() | |
20 | |
21 def __del__(self): | |
22 self.release() | |
23 | |
24 def lock(self): | |
25 while 1: | |
26 try: | |
27 self.trylock() | |
28 return 1 | |
29 except LockHeld, inst: | |
30 if self.wait: | |
31 time.sleep(1) | |
32 continue | |
33 raise inst | |
515 | 34 |
161 | 35 def trylock(self): |
36 pid = os.getpid() | |
37 try: | |
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[PATCH] Enables lock work under the other 'OS'
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38 util.makelock(str(pid), self.f) |
161 | 39 self.held = 1 |
704
5ca319a641e1
Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
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40 except (OSError, IOError): |
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41 raise LockHeld(util.readlock(self.f)) |
161 | 42 |
43 def release(self): | |
44 if self.held: | |
45 self.held = 0 | |
503
c6a2e41c8c60
Fix troubles with clone and exception handling
mpm@selenic.com
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46 try: |
c6a2e41c8c60
Fix troubles with clone and exception handling
mpm@selenic.com
parents:
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47 os.unlink(self.f) |
c6a2e41c8c60
Fix troubles with clone and exception handling
mpm@selenic.com
parents:
429
diff
changeset
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48 except: pass |
161 | 49 |