HDFS-11436: libhdfs++: Fix race condition in ScopedResolver. Contributed by James Clampffer.
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@ -109,13 +109,14 @@ class ScopedResolver {
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// Now set up the promise, set it in async_resolve's callback
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result_status_ = std::make_shared<std::promise<Status>>();
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std::shared_ptr<std::promise<Status>> shared_result = result_status_;
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// Callback to pull a copy of endpoints out of resolver and set promise
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auto callback = [this](const asio::error_code &ec, ::asio::ip::tcp::resolver::iterator out) {
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auto callback = [this, shared_result](const asio::error_code &ec, ::asio::ip::tcp::resolver::iterator out) {
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if(!ec) {
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std::copy(out, ::asio::ip::tcp::resolver::iterator(), std::back_inserter(endpoints_));
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}
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result_status_->set_value( ToStatus(ec) );
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shared_result->set_value( ToStatus(ec) );
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};
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resolver_.async_resolve(query_, callback);
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return true;
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