Source Code for Module gozerbot.lockmanager

 1  # gozerbot/lockmanager.py 
 2  # 
 3  # 
 4   
 5  """ manages locks """ 
 6   
 7  __copyright__ = 'this file is in the public domain' 
 8   
 9  from gozerbot.generic import rlog 
10  import thread 
11   
12 -class Lockmanager(object): 
13   
14      """ place to hold locks """ 
15   
16 -    def __init__(self): 
17          self.locks = {} 
18   
19 -    def allocate(self, name): 
20          """ allocate a new lock """ 
21          name = name.lower() 
22          self.locks[name] = thread.allocate_lock() 
23          rlog(10, 'lockmanager', 'allocated %s' % name) 
24           
25 -    def get(self, name): 
26          """ get lock """ 
27          name = name.lower() 
28          if not self.locks.has_key(name): 
29              self.allocate(name) 
30          return self.locks[name] 
31           
32 -    def delete(self, name): 
33          """ delete lock """ 
34          if self.locks.has_key(name): 
35              del self.locks[name] 
36   
37 -    def acquire(self, name): 
38          """ acquire lock """ 
39          name = name.lower() 
40          if not self.locks.has_key(name): 
41              self.allocate(name) 
42          rlog(10, 'lockmanager', 'acquire %s' % name) 
43          self.locks[name].acquire() 
44   
45 -    def release(self, name): 
46          """ release lock """ 
47          name = name.lower() 
48          rlog(10, 'lockmanager', 'releasing %s' % name) 
49          self.locks[name].release() 
50   
51  lockmanager = Lockmanager() 
52