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Fix late joiners example #2096

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Jul 27, 2021
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Fix late joiners example #2096

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8 changes: 8 additions & 0 deletions examples/C++/DDS/LateJoiners/latejoiners.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -156,6 +156,14 @@ void latejoiners()
return;
}

// Wait for volatile reader to match with writer, otherwise it may consider the new samples as historical
std::vector<InstanceHandle_t> matched_writers;
while (ReturnCode_t::RETCODE_OK == myReader2->get_matched_publications(matched_writers) &&
matched_writers.empty() )
{
std::this_thread::sleep_for(std::chrono::milliseconds(100));
}

//Send 20 samples
std::cout << "Publishing 20 samples on the topic..." << std::endl;
for (uint8_t j = 0; j < 20; j++)
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