← Back to branch summary

~bzr-pqm/bzr/bzr.dev

« back to all changes in this revision

Viewing changes to bzrlib/lock.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2010-05-03 09:07:50 UTC
  • mfrom: (5185.1.1 fix-515660)
  • Revision ID: pqm@pqm.ubuntu.com-20100503090750-ojeefmuph3yj8m5z
Update 'bzr bind' help to indicate what happens when no location is
 specified.

Show diffs side-by-side

added added

removed removed

Lines of Context:
bzrlib/lock.py
45
45
    osutils,
46
46
    trace,
47
47
    )
48
 
from bzrlib.hooks import Hooks
49
 
from bzrlib.i18n import gettext
 
48
from bzrlib.hooks import HookPoint, Hooks
 
49
 
50
50
 
51
51
class LockHooks(Hooks):
52
52
 
53
53
    def __init__(self):
54
 
        Hooks.__init__(self, "bzrlib.lock", "Lock.hooks")
55
 
        self.add_hook('lock_acquired',
56
 
            "Called with a bzrlib.lock.LockResult when a physical lock is "
57
 
            "acquired.", (1, 8))
58
 
        self.add_hook('lock_released',
59
 
            "Called with a bzrlib.lock.LockResult when a physical lock is "
60
 
            "released.", (1, 8))
61
 
        self.add_hook('lock_broken',
62
 
            "Called with a bzrlib.lock.LockResult when a physical lock is "
63
 
            "broken.", (1, 15))
 
54
        Hooks.__init__(self)
 
55
        self.create_hook(HookPoint('lock_acquired',
 
56
            "Called with a bzrlib.lock.LockResult when a physical lock is "
 
57
            "acquired.", (1, 8), None))
 
58
        self.create_hook(HookPoint('lock_released',
 
59
            "Called with a bzrlib.lock.LockResult when a physical lock is "
 
60
            "released.", (1, 8), None))
 
61
        self.create_hook(HookPoint('lock_broken',
 
62
            "Called with a bzrlib.lock.LockResult when a physical lock is "
 
63
            "broken.", (1, 15), None))
64
64
 
65
65
 
66
66
class Lock(object):
88
88
                             self.lock_url, self.details)
89
89
 
90
90
 
91
 
class LogicalLockResult(object):
92
 
    """The result of a lock_read/lock_write/lock_tree_write call on lockables.
93
 
 
94
 
    :ivar unlock: A callable which will unlock the lock.
95
 
    """
96
 
 
97
 
    def __init__(self, unlock):
98
 
        self.unlock = unlock
99
 
 
100
 
    def __repr__(self):
101
 
        return "LogicalLockResult(%s)" % (self.unlock)
102
 
 
103
 
 
104
 
 
105
91
def cant_unlock_not_held(locked_object):
106
92
    """An attempt to unlock failed because the object was not locked.
107
93
 
171
157
            self.f.close()
172
158
            self.f = None
173
159
 
 
160
    def __del__(self):
 
161
        if self.f:
 
162
            from warnings import warn
 
163
            warn("lock on %r not released" % self.f)
 
164
            self.unlock()
 
165
 
174
166
    def unlock(self):
175
167
        raise NotImplementedError()
176
168
 
535
527
    locked the same way), and -Drelock is set, then this will trace.note a
536
528
    message about it.
537
529
    """
538
 
 
 
530
    
539
531
    _prev_lock = None
540
532
 
541
533
    def _note_lock(self, lock_type):
544
536
                type_name = 'read'
545
537
            else:
546
538
                type_name = 'write'
547
 
            trace.note(gettext('{0!r} was {1} locked again'), self, type_name)
 
539
            trace.note('%r was %s locked again', self, type_name)
548
540
        self._prev_lock = lock_type
549
541