text: // Copyright (c) 2013, Cornell University
  // All rights reserved.
  //
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are met:
  //
  //     * Redistributions of source code must retain the above copyright notice,
  //       this list of conditions and the following disclaimer.
  //     * Redistributions in binary form must reproduce the above copyright
  //       notice, this list of conditions and the following disclaimer in the
  //       documentation and/or other materials provided with the distribution.
  //     * Neither the name of HyperDex nor the names of its contributors may be
  //       used to endorse or promote products derived from this software without
  //       specific prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  // POSSIBILITY OF SUCH DAMAGE.
  
  // C
  #include <cstdlib>
  
  // HyperDex
  #include <hyperdex/admin.hpp>
  #include "tools/common.h"
  
  int
  main(int argc, const char* argv[])
  {
      hyperdex::connect_opts conn;
      e::argparser ap;
      ap.autohelp();
      ap.option_string("[OPTIONS] <server-id>");
      ap.add("Connect to a cluster:", conn.parser());
  
      if (!ap.parse(argc, argv))
      {
          return EXIT_FAILURE;
      }
  
      if (!conn.validate())
      {
          std::cerr << "invalid host:port specification\n" << std::endl;
          ap.usage();
          return EXIT_FAILURE;
      }
  
      if (ap.args_sz() != 1)
      {
          std::cerr << "please specify the server id" << std::endl;
          ap.usage();
          return EXIT_FAILURE;
      }
  
      char* end = NULL;
      uint64_t token = strtoull(ap.args()[0], &end, 0);
  
      if (*end != '\0' || ap.args()[0] == end)
      {
          std::cerr << "server id must be a number" << std::endl;
          ap.usage();
          return EXIT_FAILURE;
      }
  
      try
      {
          hyperdex::Admin h(conn.host(), conn.port());
          hyperdex_admin_returncode rrc;
          int64_t rid = h.server_register(token);
  
          if (rid < 0)
          {
              std::cerr << "could not register server: " << rrc << std::endl;
              return EXIT_FAILURE;
          }
  
          hyperdex_admin_returncode lrc;
          int64_t lid = h.loop(-1, &lrc);
  
          if (lid < 0)
          {
              std::cerr << "could not register server: " << lrc << std::endl;
              return EXIT_FAILURE;
          }
  
          assert(rid == lid);
  
          if (rrc != HYPERDEX_ADMIN_SUCCESS)
          {
              std::cerr << "could not register server: " << rrc << std::endl;
              return EXIT_FAILURE;
          }
  
          return EXIT_SUCCESS;
      }
      catch (std::exception& e)
      {
          std::cerr << "error: " << e.what() << std::endl;
          return EXIT_FAILURE;
      }
  }
  