[Commit-gnuradio] git://gnuradio.org/gnuradio branch, maint, updated. v3.6.4-3-g7ebec8c

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- Log -----------------------------------------------------------------
commit 7ebec8cc4b5e3a9eb480e3f954f9425d92e73a18
Author: Tom Rondeau <address@hidden>
Date:   Thu Mar 7 14:24:52 2013 -0500

    core: protect against popping a message off the queue if no handler is 
attached.
    
    This mostly solves a problem with threads being launched in random
    order, so a handler might not be established yet, even if there is a
    message waiting. Fixes Issue #514.

-----------------------------------------------------------------------

Summary of changes:
 gnuradio-core/gnuradio-core.conf                   |    4 +++
 gnuradio-core/src/lib/runtime/gr_basic_block.h     |   23 +++++++++++++++++--
 .../src/lib/runtime/gr_tpb_thread_body.cc          |   17 +++++++++++++-
 gnuradio-core/src/python/gnuradio/gr/qa_pdu.py     |    3 +-
 4 files changed, 41 insertions(+), 6 deletions(-)


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