Class t.i.d.DeferredLock(_ConcurrencyPrimitive):

Part of twisted.internet.defer View Source View In Hierarchy

A lock for event driven systems.

API stability: Unstable

Instance Variables locked True when this Lock has been acquired, false at all other times. Do not change this value, but it is useful to examine for the equivalent of a "non-blocking" acquisition.

Method	acquire	Attempt to acquire the lock.
Method	release	Release the lock.

Inherited from _ConcurrencyPrimitive:

Method	__init__	Undocumented
Method	_releaseAndReturn	Undocumented
Method	run	Acquire, run, release.

def acquire(self): (source)

Attempt to acquire the lock.

Returns a Deferred which fires on lock acquisition.

def release(self): (source)

Release the lock.

Should be called by whomever did the acquire() when the shared resource is free.

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