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Viewing changes to bzrlib/transport/trace.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2010-09-01 08:02:42 UTC
  • mfrom: (5390.3.3 faster-revert-593560)
  • Revision ID: pqm@pqm.ubuntu.com-20100901080242-esg62ody4frwmy66
(spiv) Avoid repeatedly calling self.target.all_file_ids() in
 InterTree.iter_changes. (Andrew Bennetts)

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bzrlib/transport/trace.py
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and then delegates it.
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"""
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from bzrlib.transport.decorator import TransportDecorator, DecoratorServer
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class TransportTraceDecorator(TransportDecorator):
 
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from bzrlib.transport import decorator
 
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class TransportTraceDecorator(decorator.TransportDecorator):
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    """A tracing decorator for Transports.
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    Calls that potentially perform IO are logged to self._activity. The
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    Not all operations are logged at this point, if you need an unlogged
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    operation please add a test to the tests of this transport, for the logging
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    of the operation you want logged.
 
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    See also TransportLogDecorator, that records a machine-readable log in 
 
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    memory for eg testing.
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    """
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    def __init__(self, url, _decorated=None, _from_transport=None):
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        _decorated is a private parameter for cloning.
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        """
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        TransportDecorator.__init__(self, url, _decorated)
 
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        super(TransportTraceDecorator, self).__init__(url, _decorated)
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        if _from_transport is None:
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            # newly created
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            self._activity = []
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    def readv(self, relpath, offsets, adjust_for_latency=False,
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        upper_limit=None):
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        """See Transport.readv."""
 
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        # we override at the readv() level rather than _readv() so that any
 
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        # latency adjustments will be done by the underlying transport
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        self._trace(('readv', relpath, offsets, adjust_for_latency,
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            upper_limit))
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        return self._decorated.readv(relpath, offsets, adjust_for_latency,
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        self._activity.append(operation_tuple)
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class TraceServer(DecoratorServer):
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    """Server for the TransportTraceDecorator for testing with."""
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    def get_decorator_class(self):
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        return TransportTraceDecorator
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def get_test_permutations():
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    """Return the permutations to be used in testing."""
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    return [(TransportTraceDecorator, TraceServer)]
 
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    from bzrlib.tests import test_server
 
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    return [(TransportTraceDecorator, test_server.TraceServer)]