update source to Ceph Pacific 16.2.2

[ceph.git] / ceph / src / jaegertracing / jaeger-client-cpp / src / jaegertracing / utils / UDPTransporter.h

diff --git a/ceph/src/jaegertracing/jaeger-client-cpp/src/jaegertracing/utils/UDPTransporter.h b/ceph/src/jaegertracing/jaeger-client-cpp/src/jaegertracing/utils/UDPTransporter.h
new file mode 100644 (file)
index 0000000..dfd6424
--- /dev/null
+++ b/ceph/src/jaegertracing/jaeger-client-cpp/src/jaegertracing/utils/UDPTransporter.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2017-2018 Uber Technologies, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef JAEGERTRACING_UTILS_UDPCLIENT_H
+#define JAEGERTRACING_UTILS_UDPCLIENT_H
+
+#include <iostream>
+#include <sstream>
+#include <stdexcept>
+#include <system_error>
+
+#include "jaegertracing/Compilers.h"
+
+#include <thrift/protocol/TCompactProtocol.h>
+#include <thrift/transport/TBufferTransports.h>
+
+#include "jaegertracing/utils/Transport.h"
+
+#include "jaegertracing/net/IPAddress.h"
+#include "jaegertracing/thrift-gen/Agent.h"
+
+namespace jaegertracing {
+namespace utils {
+
+class UDPTransporter : public Transport {
+  public:
+    static constexpr auto kUDPPacketMaxLength = 65000;
+
+    UDPTransporter(const net::IPAddress& serverAddr, int maxPacketSize);
+
+    void emitZipkinBatch(
+        const std::vector<twitter::zipkin::thrift::Span>& spans)
+    {
+        throw std::logic_error("emitZipkinBatch not implemented");
+    }
+
+    void emitBatch(const thrift::Batch& batch) override
+    {
+        _buffer->resetBuffer();
+        _client->emitBatch(batch);
+        uint8_t* data = nullptr;
+        uint32_t size = 0;
+        _buffer->getBuffer(&data, &size);
+        if (static_cast<int>(size) > _maxPacketSize) {
+            std::ostringstream oss;
+            oss << "Data does not fit within one UDP packet"
+                   ", size "
+                << size << ", max " << _maxPacketSize << ", spans "
+                << batch.spans.size();
+            throw std::logic_error(oss.str());
+        }
+        const auto numWritten = ::send(_socket.handle(), reinterpret_cast<char*>(data), sizeof(uint8_t) * size, 0);
+        if (static_cast<unsigned>(numWritten) != size) {
+            std::ostringstream oss;
+            oss << "Failed to write message"
+                   ", numWritten="
+                << numWritten << ", size=" << size;
+            throw std::system_error(errno, std::system_category(), oss.str());
+        }
+    }
+
+  std::unique_ptr< apache::thrift::protocol::TProtocolFactory > protocolFactory() const override {
+    return std::unique_ptr<apache::thrift::protocol::TProtocolFactory>(new apache::thrift::protocol::TCompactProtocolFactory());
+  }
+
+  private:
+    std::shared_ptr<apache::thrift::transport::TMemoryBuffer> _buffer;
+    net::IPAddress _serverAddr;
+    std::unique_ptr<agent::thrift::AgentClient> _client;
+};
+
+}  // namespace utils
+}  // namespace jaegertracing
+
+#endif  // JAEGERTRACING_UTILS_UDPCLIENT_H