the doc of Deferred.callback() doesn't tell me what will happen if the deferred has already been triggered
|Reported by:||zooko||Owned by:||exarkun|
(github, patch, buildbot, log)
A colleague (David-Sarah), is proposing to add code to Tahoe-LAFS in order to work-around some unspecified limitations or problems in how Deferred handles repeated callback():
I'd like to read some documentation about how Deferred does, or is supposed to, handle that.
Such documentation probably belongs here: http://twistedmatrix.com/documents/current/api/twisted.internet.defer.Deferred.html#callback