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comparison mercurial/lock.py @ 1530:abfab59fce79

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add a releasefn keyword to lock.lock releasefn is a function that will be executed when the lock is released
author Benoit Boissinot <benoit.boissinot@ens-lyon.org>
date Fri, 11 Nov 2005 15:34:09 -0800
parents 6d5a62a549fa
children 59b3639df0a9
comparison
equal deleted inserted replaced
1529:a208e86bbc34 1530:abfab59fce79
10 10
11 class LockHeld(Exception): 11 class LockHeld(Exception):
12 pass 12 pass
13 13
14 class lock: 14 class lock:
15 def __init__(self, file, wait=1): 15 def __init__(self, file, wait=1, releasefn=None):
16 self.f = file 16 self.f = file
17 self.held = 0 17 self.held = 0
18 self.wait = wait 18 self.wait = wait
19 self.releasefn = releasefn
19 self.lock() 20 self.lock()
20 21
21 def __del__(self): 22 def __del__(self):
22 self.release() 23 self.release()
23 24
41 raise LockHeld(util.readlock(self.f)) 42 raise LockHeld(util.readlock(self.f))
42 43
43 def release(self): 44 def release(self):
44 if self.held: 45 if self.held:
45 self.held = 0 46 self.held = 0
47 if self.releasefn:
48 self.releasefn()
46 try: 49 try:
47 os.unlink(self.f) 50 os.unlink(self.f)
48 except: pass 51 except: pass
49 52