Gazebo Gazebo

API Reference

3.15.1
gz/sim/Server.hh
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1 /*
2  * Copyright (C) 2018 Open Source Robotics Foundation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *
16 */
17 #ifndef GZ_GAZEBO_SERVER_HH_
18 #define GZ_GAZEBO_SERVER_HH_
19 
20 #include <cstdint>
21 #include <memory>
22 #include <optional>
23 #include <string>
24 #include <gz/sim/config.hh>
26 #include <gz/sim/Export.hh>
27 #include <gz/sim/ServerConfig.hh>
29 
30 namespace ignition
31 {
32  namespace gazebo
33  {
34  // Inline bracket to help doxygen filtering.
35  inline namespace IGNITION_GAZEBO_VERSION_NAMESPACE {
36  // Forware declarations
37  class ServerPrivate;
38 
114  class IGNITION_GAZEBO_VISIBLE Server
115  {
120  public: explicit Server(const ServerConfig &_config = ServerConfig());
121 
123  public: ~Server();
124 
131  public: void SetUpdatePeriod(
132  const std::chrono::steady_clock::duration &_updatePeriod,
133  const unsigned int _worldIndex = 0);
134 
150  public: bool Run(const bool _blocking = false,
151  const uint64_t _iterations = 0,
152  const bool _paused = true);
153 
161  public: bool RunOnce(const bool _paused = true);
162 
168  public: bool Running() const;
169 
178  public: std::optional<bool> Running(const unsigned int _worldIndex) const;
179 
187  public: bool SetPaused(const bool _paused,
188  const unsigned int _worldIndex = 0) const;
189 
196  public: std::optional<bool> Paused(
197  const unsigned int _worldIndex = 0) const;
198 
203  public: std::optional<uint64_t> IterationCount(
204  const unsigned int _worldIndex = 0) const;
205 
209  public: std::optional<size_t> EntityCount(
210  const unsigned int _worldIndex = 0) const;
211 
215  public: std::optional<size_t> SystemCount(
216  const unsigned int _worldIndex = 0) const;
217 
224  public: std::optional<bool> AddSystem(
225  const SystemPluginPtr &_system,
226  const unsigned int _worldIndex = 0);
227 
234  public: std::optional<bool> AddSystem(
235  const std::shared_ptr<System> &_system,
236  const unsigned int _worldIndex = 0);
237 
246  public: std::optional<Entity> EntityByName(const std::string &_name,
247  const unsigned int _worldIndex = 0) const;
248 
255  public: bool HasEntity(const std::string &_name,
256  const unsigned int _worldIndex = 0) const;
257 
271  public: bool RequestRemoveEntity(const std::string &_name,
272  bool _recursive = true,
273  const unsigned int _worldIndex = 0);
274 
286  public: bool RequestRemoveEntity(const Entity _entity,
287  bool _recursive = true,
288  const unsigned int _worldIndex = 0);
289 
291  private: std::unique_ptr<ServerPrivate> dataPtr;
292  };
293  }
294  }
295 }
296 
297 #endif
Configuration parameters for a Server. An instance of this object can be used to construct a Server w...
Definition: gz/sim/ServerConfig.hh:43
std::optional< Entity > EntityByName(const std::string &_name, const unsigned int _worldIndex=0) const
Get an Entity based on a name.
uint64_t Entity
An Entity identifies a single object in simulation such as a model, link, or light....
Definition: gz/sim/Entity.hh:59
This library is part of the Ignition Robotics project.
STL class.
STL class.
bool Running() const
Get whether the server is running. The server can have zero or more simulation worlds,...
gz::plugin::SpecializedPluginPtr< System, ISystemConfigure, ISystemPreUpdate, ISystemUpdate, ISystemPostUpdate > SystemPluginPtr
Definition: gz/sim/SystemPluginPtr.hh:33
std::optional< size_t > EntityCount(const unsigned int _worldIndex=0) const
Get the number of entities on the server.
std::optional< bool > AddSystem(const SystemPluginPtr &_system, const unsigned int _worldIndex=0)
Add a System to the server. The server must not be running when calling this.
bool RunOnce(const bool _paused=true)
Run the server once, all systems will be updated once and then this returns. This is a blocking call.
std::optional< size_t > SystemCount(const unsigned int _worldIndex=0) const
Get the number of systems on the server.
void SetUpdatePeriod(const std::chrono::steady_clock::duration &_updatePeriod, const unsigned int _worldIndex=0)
Set the update period. The update period is the wall-clock time between ECS updates....
bool SetPaused(const bool _paused, const unsigned int _worldIndex=0) const
Set whether a world simulation instance is paused. When paused is true, then simulation for the world...
Server(const ServerConfig &_config=ServerConfig())
Construct the server using the parameters specified in a ServerConfig.
bool HasEntity(const std::string &_name, const unsigned int _worldIndex=0) const
Return true if the specified world has an entity with the provided name.
The server instantiates and controls simulation.
Definition: gz/sim/Server.hh:114
std::optional< uint64_t > IterationCount(const unsigned int _worldIndex=0) const
Get the number of iterations the server has executed.
bool RequestRemoveEntity(const std::string &_name, bool _recursive=true, const unsigned int _worldIndex=0)
Return true if the specified world has an entity with the provided name and the entity was queued for...
bool Run(const bool _blocking=false, const uint64_t _iterations=0, const bool _paused=true)
Run the server. By default this is a non-blocking call, which means the server runs simulation in a s...
std::optional< bool > Paused(const unsigned int _worldIndex=0) const
Get whether a world simulation instance is paused. When paused is true, then simulation for the world...