ceph/src/jaegertracing/thrift/contrib/zeromq/TZmqClient.h

   1 /*
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements. See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership. The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License. You may obtain a copy of the License at
   9  *
  10  *   http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing,
  13  * software distributed under the License is distributed on an
  14  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  15  * KIND, either express or implied. See the License for the
  16  * specific language governing permissions and limitations
  17  * under the License.
  18  */
  19
  20 #ifndef _THRIFT_TRANSPORT_TZMQCLIENT_H_
  21 #define _THRIFT_TRANSPORT_TZMQCLIENT_H_ 1
  22
  23 #include <zmq.hpp>
  24 #include <thrift/transport/TBufferTransports.h>
  25
  26 namespace apache { namespace thrift { namespace transport {
  27
  28 class TZmqClient : public TTransport {
  29  public:
  30   TZmqClient(zmq::context_t& ctx, const std::string& endpoint, int type)
  31     : sock_(ctx, type)
  32     , endpoint_(endpoint)
  33     , wbuf_()
  34     , rbuf_()
  35     , msg_()
  36     , zmq_type_(type)
  37   {}
  38
  39   void open() {
  40     if(zmq_type_ == ZMQ_PUB) {
  41       sock_.bind(endpoint_.c_str());
  42     }
  43     else {
  44       sock_.connect(endpoint_.c_str());
  45     }
  46   }
  47
  48   uint32_t read_virt(uint8_t* buf, uint32_t len);
  49
  50   void write_virt(const uint8_t* buf, uint32_t len);
  51
  52   uint32_t writeEnd();
  53
  54  protected:
  55   zmq::socket_t sock_;
  56   std::string endpoint_;
  57   TMemoryBuffer wbuf_;
  58   TMemoryBuffer rbuf_;
  59   zmq::message_t msg_;
  60   int zmq_type_;
  61 };
  62
  63 }}} // apache::thrift::transport
  64
  65 #endif // #ifndef _THRIFT_TRANSPORT_TZMQCLIENT_H_