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Merge pull request #40 from arvidn/poll-batch-performance

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improve performance of Consumer::poll_batch()
This commit is contained in:
Matias Fontanini
2018-03-17 15:41:21 -07:00
committed by GitHub
parent deff8b1ff3 98b9839ff9
commit 675954ef75
1 changed files with 5 additions and 3 deletions
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8
src/consumer.cpp
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@@ -214,12 +214,14 @@ vector<Message> Consumer::poll_batch(size_t max_batch_size, milliseconds timeout
raw_messages.size()); raw_messages.size());
if (result == -1) { if (result == -1) {
check_error(rd_kafka_last_error()); check_error(rd_kafka_last_error());
// on the off-chance that check_error() does not throw an error
result = 0;
} }
vector<Message> output; vector<Message> output;
raw_messages.resize(result);
output.reserve(result);
for (const auto ptr : raw_messages) { for (const auto ptr : raw_messages) {
if (ptr) { output.emplace_back(ptr);
output.emplace_back(ptr);
}
} }
return output; return output;
} }