.. _program_listing_file__tmp_ws_src_rmw_gurumdds_rmw_gurumdds_cpp_include_rmw_gurumdds_cpp_gid.hpp:

Program Listing for File gid.hpp
================================

|exhale_lsh| :ref:`Return to documentation for file <file__tmp_ws_src_rmw_gurumdds_rmw_gurumdds_cpp_include_rmw_gurumdds_cpp_gid.hpp>` (``/tmp/ws/src/rmw_gurumdds/rmw_gurumdds_cpp/include/rmw_gurumdds_cpp/gid.hpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   // Copyright 2019 GurumNetworks, 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 RMW_GURUMDDS_CPP__GID_HPP_
   #define RMW_GURUMDDS_CPP__GID_HPP_
   
   #include <cstring>
   #include <iostream>
   #include <map>
   #include <set>
   #include <string>
   #include <vector>
   
   #include "rmw/types.h"
   
   #include "rmw_gurumdds_cpp/dds_include.hpp"
   #include "rmw_gurumdds_cpp/identifier.hpp"
   
   inline
   void guid_to_gid(const dds_GUID_t & guid, rmw_gid_t & gid)
   {
     static_assert(
       RMW_GID_STORAGE_SIZE >= sizeof(guid),
       "rmw_gid_t type too small for an dds GUID");
     memset(&gid, 0, sizeof(gid));
     memcpy(gid.data, reinterpret_cast<const void *>(&guid), sizeof(guid));
     gid.implementation_identifier = RMW_GURUMDDS_ID;
   }
   
   inline
   void entity_get_gid(dds_Entity * const entity, rmw_gid_t & gid)
   {
     dds_GUID_t dds_guid;
     if (dds_Entity_get_guid(entity, &dds_guid) == dds_RETCODE_OK) {
       guid_to_gid(dds_guid, gid);
     }
   }
   
   #endif  // RMW_GURUMDDS_CPP__GID_HPP_