No clear way to read an AbsTime from a Variant...
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Key: QPID-2362
URL: https://issues.apache.org/jira/browse/QPID-2362
Project: Qpid
Issue Type: Bug
Components: C++ Client
Affects Versions: 0.5
Environment: C++
Reporter: Kerry Bonin
I'm working on sending and receiving a timestamp of type qpid::sys::AbsTime via
qpid::messaging::MapContent.
The instructions in qpid\sys\Time.h recommend use of the Duration class for
access to the ns value, leading to this example:
Message msgOut;
MapContent contentOut( msgOut );
contentOut[ "timestamp" ] = Variant( Duration( AbsTime::now() ) );
This works fine (other than the epoch bug [QPID-1904] on Windows I just
submitted a patch for.)
The problem is, how do I get the AbsTime back out of the map? I can extract
the int64_t value just fine, but there are no appropriate AbsTime constructors.
The only exposed methods are now() and the (const AbsTime & t, const Duration
& d) constructor, but since the default constructor for AbsTime initializes to
a 'not-a-date-time' state, there does not appear to be a valid way to
initialize AbsTime from a specific value.
One suggestion would be to add an AbsTime constructor that takes an int64_t ns
parameter in the Jan 1, 1970 epoch.
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