cloe::simulator::NopSimulator Class Reference

Inheritance diagram for cloe::simulator::NopSimulator:

Collaboration diagram for cloe::simulator::NopSimulator:

Public Member Functions
	NopSimulator (const std::string &name, const NopConfiguration &c)
void	connect () override
void	reset () override
void	abort () override
void	enroll (Registrar &r) override
size_t	num_vehicles () const override
std::shared_ptr< Vehicle >	get_vehicle (size_t i) const override
std::shared_ptr< Vehicle >	get_vehicle (const std::string &key) const override
Duration	process (const Sync &sync) override
Public Member Functions inherited from cloe::Model
virtual	~Model () noexcept=default
virtual Duration	resolution () const
virtual bool	is_connected () const
virtual bool	is_operational () const
virtual void	disconnect ()
virtual void	start (const Sync &)
virtual void	pause (const Sync &)
virtual void	resume (const Sync &)
virtual void	stop (const Sync &)
	Entity (std::string name)
	Entity (std::string name, std::string desc)
Public Member Functions inherited from cloe::Entity
	Entity (std::string name)
	Entity (std::string name, std::string desc)
const std::string &	name () const
void	set_name (std::string name)
const std::string &	description () const
void	set_description (std::string desc)

Friends
void	to_json (Json &j, const NopSimulator &b)

Additional Inherited Members
Protected Member Functions inherited from cloe::Entity
virtual Logger	logger () const
Protected Attributes inherited from cloe::Model
bool	connected_ {false}
bool	operational_ {false}
Protected Attributes inherited from cloe::Entity
std::string	name_
std::string	desc_

Member Function Documentation

abort()

void cloe::simulator::NopSimulator::abort ( )

inlineoverridevirtual

Signal an abort to model processing.

This method is called asynchronously. It is highly recommended to make use of a std::atomic_bool for purposes of making the abortion request known to other parts of the model. This method is called when the user requests the simulation to be aborted, e.g., by sending the SIGINT signal.

An abort will be followed by a stop if the simulation was started.

The default implementation will throw an error. This will be caught and possibly ignored. Otherwise, the simulation will be killed.

See also

cloe/core/abort.hpp

Reimplemented from cloe::Model.

connect()

void cloe::simulator::NopSimulator::connect ( )

inlineoverridevirtual

Initiate a connection to the model, including any initialization.

• It should block until the connection is successfully established.
• It should throw an exception if an unrecoverable error occurs.
• It should react to an abort() called on the model.
• It may throw an error if already connected.

After a successful connection, the following methods shall be callable:

• enroll(Registrar&)
• start(const Sync&)

When implementing this method, e.g. via override or final, make sure to call this method:

void MySuperModel::connect() final { // Your connection code Model::connect(); }

Reimplemented from cloe::Model.

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enroll()

void cloe::simulator::NopSimulator::enroll ( Registrar &  )

inlineoverridevirtual

Register any events, actions, or handlers with the registrar.

• This may exhibit different behavior when called in a disconnected state, in order to provide the possibility for verification of triggers in offline mode.
• It may throw an exception.

Reimplemented from cloe::Model.

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get_vehicle() [1/2]

std::shared_ptr<Vehicle> cloe::simulator::NopSimulator::get_vehicle ( const std::string &  key ) const

inlineoverridevirtual

Return a pointer to a Vehicle.

• If a vehicle does not exist with the key, nullptr is returned.
• Same conditions apply as for get_vehicle(size_t).

Implements cloe::Simulator.

get_vehicle() [2/2]

std::shared_ptr<Vehicle> cloe::simulator::NopSimulator::get_vehicle ( size_t  i ) const

inlineoverridevirtual

Return a pointer to a Vehicle.

• The argument i should be between [0, n), where n = num_vehicles().
• If a vehicle index is accessed that is out-of-bounds, behaviour is undefined.
• The simulator binding must manage the memory of the Vehicle.
• The pointer to the vehicle is guaranteed to be valid for the duration of the simulation.
• After the simulation has disconnected, the pointer is no longer guaranteed to be valid.
• The vehicle may be modified and these modifications will be preserved for the validity of the pointer. In particular, the sensor and actuator interfaces may be replaced by proxies.

Implements cloe::Simulator.

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num_vehicles()

size_t cloe::simulator::NopSimulator::num_vehicles ( ) const

inlineoverridevirtual

Return the number of vehicles that the simulator binding has access to.

• It may throw an exception or return 0 if the simulator is not connected.

Implements cloe::Simulator.

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process()

Duration cloe::simulator::NopSimulator::process ( const Sync &  )

inlineoverridevirtual

Send vehicle actuations to the simulator and retrieve the new world state.

1. For each vehicle, actuation is sent first, to make clear that these actuations are based on the sensor information from the previous step. The new world state, at the time point where the actuations are sent is then retrieved and made available to each vehicle. Essentially, they are sent and received in parallel.
2. The simulator is instructed to complete the next simulation cycle, if possible asynchronously.

• This function can throw an exception, which causes the simulation to be aborted.

See also

Model::process

Implements cloe::Simulator.

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reset()

void cloe::simulator::NopSimulator::reset ( )

inlineoverridevirtual

Reset the model state.

This is called when Cloe is asked to reset the whole simulation to time 0. This can be the case when the simulator or a controller asks us to recover from a temporary problem without repeating the whole simulation setup.

The default implementation will raise an error. So if your model is not able to re-initialize, the simulation will be aborted.

Reimplemented from cloe::Model.

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The documentation for this class was generated from the following file:

• /home/docs/checkouts/readthedocs.org/user_builds/cloe/checkouts/v0.24.0/engine/src/plugins/nop_simulator.cpp