Allow creation of OutputCallbackInfo and InputCallbackInfo objects (for test purposes) #899
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This change makes the fields of
StreamInstant
,OutputCallbackInfo
andInputCallbackInfo
pub.The intent is to allow
OutputCallbackInfo
instances to be created, which then allows unit testing the data callback function. Because it is a self-contained function that simply fills data in a buffer, it is, in principle, very unit-testable -- but it's very difficult to do so today because the test code cannot create anOutputCallbackInfo
for it.I don't believe there's any good reason for these fields to not be pub. In particular, I noticed the fields of
OutputStreamTimestamp
are public, so the "middle" layer is already creatable, just notStreamInstant
andOutputCallbackInfo
. Also, the structures are pretty plain data objects with no special logic or anything like that, so there really is no harm in allowing them to be created.