WPILibC++ 2023.4.3
frc2::ParallelRaceGroup Class Reference

A composition that runs a set of commands in parallel, ending when any one of the commands ends and interrupting all the others. More...

#include <frc2/command/ParallelRaceGroup.h>

Inheritance diagram for frc2::ParallelRaceGroup:
frc2::CommandHelper< CommandGroupBase, ParallelRaceGroup > frc2::CommandGroupBase frc2::CommandBase frc2::Command wpi::Sendable wpi::SendableHelper< CommandBase >

Public Member Functions

 ParallelRaceGroup (std::vector< std::unique_ptr< Command > > &&commands)
 Creates a new ParallelCommandRace. More...
 
template<class... Types, typename = std::enable_if_t<std::conjunction_v< std::is_base_of<Command, std::remove_reference_t<Types>>...>>>
 ParallelRaceGroup (Types &&... commands)
 
 ParallelRaceGroup (ParallelRaceGroup &&other)=default
 
 ParallelRaceGroup (const ParallelRaceGroup &)=delete
 
 ParallelRaceGroup (ParallelRaceGroup &)=delete
 
template<class... Types>
void AddCommands (Types &&... commands)
 
void Initialize () final
 The initial subroutine of a command. More...
 
void Execute () final
 The main body of a command. More...
 
void End (bool interrupted) final
 The action to take when the command ends. More...
 
bool IsFinished () final
 Whether the command has finished. More...
 
bool RunsWhenDisabled () const override
 Whether the given command should run when the robot is disabled. More...
 
Command::InterruptionBehavior GetInterruptionBehavior () const override
 How the command behaves when another command with a shared requirement is scheduled. More...
 
- Public Member Functions inherited from frc2::CommandHelper< CommandGroupBase, ParallelRaceGroup >
 CommandHelper ()=default
 
CommandPtr ToPtr () &&override
 
virtual void AddCommands (std::vector< std::unique_ptr< Command > > &&commands)=0
 Adds the given commands to the command group. More...
 
- Public Member Functions inherited from frc2::CommandBase
void AddRequirements (std::initializer_list< Subsystem * > requirements)
 Adds the specified Subsystem requirements to the command. More...
 
void AddRequirements (std::span< Subsystem *const > requirements)
 Adds the specified Subsystem requirements to the command. More...
 
void AddRequirements (wpi::SmallSet< Subsystem *, 4 > requirements)
 Adds the specified Subsystem requirements to the command. More...
 
void AddRequirements (Subsystem *requirement)
 Adds the specified Subsystem requirement to the command. More...
 
wpi::SmallSet< Subsystem *, 4 > GetRequirements () const override
 Gets the Subsystem requirements of the command. More...
 
void SetName (std::string_view name) override
 Sets the name of this Command. More...
 
std::string GetName () const override
 Gets the name of this Command. More...
 
std::string GetSubsystem () const
 Gets the subsystem name of this Command. More...
 
void SetSubsystem (std::string_view subsystem)
 Sets the subsystem name of this Command. More...
 
void InitSendable (wpi::SendableBuilder &builder) override
 Initializes this Sendable object. More...
 
- Public Member Functions inherited from frc2::Command
 Command ()=default
 
virtual ~Command ()
 
 Command (const Command &)=default
 
Commandoperator= (const Command &rhs)
 
 Command (Command &&)=default
 
Commandoperator= (Command &&)=default
 
virtual void Initialize ()
 The initial subroutine of a command. More...
 
virtual void Execute ()
 The main body of a command. More...
 
virtual void End (bool interrupted)
 The action to take when the command ends. More...
 
virtual bool IsFinished ()
 Whether the command has finished. More...
 
virtual wpi::SmallSet< Subsystem *, 4 > GetRequirements () const =0
 Specifies the set of subsystems used by this command. More...
 
CommandPtr WithTimeout (units::second_t duration) &&
 Decorates this command with a timeout. More...
 
CommandPtr Until (std::function< bool()> condition) &&
 Decorates this command with an interrupt condition. More...
 
CommandPtr WithInterrupt (std::function< bool()> condition) &&
 Decorates this command with an interrupt condition. More...
 
CommandPtr BeforeStarting (std::function< void()> toRun, std::initializer_list< Subsystem * > requirements) &&
 Decorates this command with a runnable to run before this command starts. More...
 
CommandPtr BeforeStarting (std::function< void()> toRun, std::span< Subsystem *const > requirements={}) &&
 Decorates this command with a runnable to run before this command starts. More...
 
CommandPtr AndThen (std::function< void()> toRun, std::initializer_list< Subsystem * > requirements) &&
 Decorates this command with a runnable to run after the command finishes. More...
 
CommandPtr AndThen (std::function< void()> toRun, std::span< Subsystem *const > requirements={}) &&
 Decorates this command with a runnable to run after the command finishes. More...
 
PerpetualCommand Perpetually () &&
 
CommandPtr Repeatedly () &&
 Decorates this command to run repeatedly, restarting it when it ends, until this command is interrupted. More...
 
CommandPtr AsProxy () &&
 Decorates this command to run "by proxy" by wrapping it in a ProxyCommand. More...
 
CommandPtr Unless (std::function< bool()> condition) &&
 Decorates this command to only run if this condition is not met. More...
 
CommandPtr IgnoringDisable (bool doesRunWhenDisabled) &&
 Decorates this command to run or stop when disabled. More...
 
CommandPtr WithInterruptBehavior (Command::InterruptionBehavior interruptBehavior) &&
 Decorates this command to run or stop when disabled. More...
 
CommandPtr FinallyDo (std::function< void(bool)> end) &&
 Decorates this command with a lambda to call on interrupt or end, following the command's inherent Command::End(bool) method. More...
 
CommandPtr HandleInterrupt (std::function< void()> handler) &&
 Decorates this command with a lambda to call on interrupt, following the command's inherent Command::End(bool) method. More...
 
CommandPtr WithName (std::string_view name) &&
 Decorates this Command with a name. More...
 
void Schedule ()
 Schedules this command. More...
 
void Cancel ()
 Cancels this command. More...
 
bool IsScheduled () const
 Whether or not the command is currently scheduled. More...
 
bool HasRequirement (Subsystem *requirement) const
 Whether the command requires a given subsystem. More...
 
bool IsComposed () const
 Whether the command is currently grouped in a command group. More...
 
void SetComposed (bool isComposed)
 Sets whether the command is currently composed in a command composition. More...
 
bool IsGrouped () const
 Whether the command is currently grouped in a command group. More...
 
void SetGrouped (bool grouped)
 Sets whether the command is currently grouped in a command group. More...
 
virtual bool RunsWhenDisabled () const
 Whether the given command should run when the robot is disabled. More...
 
virtual InterruptionBehavior GetInterruptionBehavior () const
 How the command behaves when another command with a shared requirement is scheduled. More...
 
virtual std::string GetName () const
 Gets the name of this Command. More...
 
virtual void SetName (std::string_view name)
 Sets the name of this Command. More...
 
virtual CommandPtr ToPtr () &&=0
 Transfers ownership of this command to a unique pointer. More...
 
- Public Member Functions inherited from wpi::Sendable
virtual ~Sendable ()=default
 
virtual void InitSendable (SendableBuilder &builder)=0
 Initializes this Sendable object. More...
 
- Public Member Functions inherited from wpi::SendableHelper< CommandBase >
 SendableHelper (const SendableHelper &rhs)=default
 
 SendableHelper (SendableHelper &&rhs)
 
SendableHelperoperator= (const SendableHelper &rhs)=default
 
SendableHelperoperator= (SendableHelper &&rhs)
 

Additional Inherited Members

- Public Types inherited from frc2::Command
enum class  InterruptionBehavior { kCancelSelf , kCancelIncoming }
 An enum describing the command's behavior when another command with a shared requirement is scheduled. More...
 
- Protected Member Functions inherited from frc2::CommandHelper< CommandGroupBase, ParallelRaceGroup >
std::unique_ptr< CommandTransferOwnership () &&override
 
- Protected Member Functions inherited from frc2::CommandBase
 CommandBase ()
 
virtual std::unique_ptr< CommandTransferOwnership () &&=0
 Transfers ownership of this command to a unique pointer. More...
 
- Protected Member Functions inherited from wpi::SendableHelper< CommandBase >
 SendableHelper ()=default
 
 ~SendableHelper ()
 
- Protected Attributes inherited from frc2::CommandBase
wpi::SmallSet< Subsystem *, 4 > m_requirements
 
- Protected Attributes inherited from frc2::Command
bool m_isComposed = false
 

Detailed Description

A composition that runs a set of commands in parallel, ending when any one of the commands ends and interrupting all the others.

The rules for command compositions apply: command instances that are passed to it are owned by the composition and cannot be added to any other composition or scheduled individually, and the composition requires all subsystems its components require.

This class is provided by the NewCommands VendorDep

Constructor & Destructor Documentation

◆ ParallelRaceGroup() [1/5]

frc2::ParallelRaceGroup::ParallelRaceGroup ( std::vector< std::unique_ptr< Command > > &&  commands)
explicit

Creates a new ParallelCommandRace.

The given commands will be executed simultaneously, and will "race to the finish" - the first command to finish ends the entire command, with all other commands being interrupted.

Parameters
commandsthe commands to include in this composition.

◆ ParallelRaceGroup() [2/5]

template<class... Types, typename = std::enable_if_t<std::conjunction_v< std::is_base_of<Command, std::remove_reference_t<Types>>...>>>
frc2::ParallelRaceGroup::ParallelRaceGroup ( Types &&...  commands)
inlineexplicit

◆ ParallelRaceGroup() [3/5]

frc2::ParallelRaceGroup::ParallelRaceGroup ( ParallelRaceGroup &&  other)
default

◆ ParallelRaceGroup() [4/5]

frc2::ParallelRaceGroup::ParallelRaceGroup ( const ParallelRaceGroup )
delete

◆ ParallelRaceGroup() [5/5]

frc2::ParallelRaceGroup::ParallelRaceGroup ( ParallelRaceGroup )
delete

Member Function Documentation

◆ AddCommands()

template<class... Types>
void frc2::ParallelRaceGroup::AddCommands ( Types &&...  commands)
inline

◆ End()

void frc2::ParallelRaceGroup::End ( bool  interrupted)
finalvirtual

The action to take when the command ends.

Called when either the command finishes normally, or when it interrupted/canceled.

Parameters
interruptedwhether the command was interrupted/canceled

Reimplemented from frc2::Command.

◆ Execute()

void frc2::ParallelRaceGroup::Execute ( )
finalvirtual

The main body of a command.

Called repeatedly while the command is scheduled.

Reimplemented from frc2::Command.

◆ GetInterruptionBehavior()

Command::InterruptionBehavior frc2::ParallelRaceGroup::GetInterruptionBehavior ( ) const
overridevirtual

How the command behaves when another command with a shared requirement is scheduled.

Returns
a variant of InterruptionBehavior, defaulting to kCancelSelf.

Reimplemented from frc2::Command.

◆ Initialize()

void frc2::ParallelRaceGroup::Initialize ( )
finalvirtual

The initial subroutine of a command.

Called once when the command is initially scheduled.

Reimplemented from frc2::Command.

◆ IsFinished()

bool frc2::ParallelRaceGroup::IsFinished ( )
finalvirtual

Whether the command has finished.

Once a command finishes, the scheduler will call its end() method and un-schedule it.

Returns
whether the command has finished.

Reimplemented from frc2::Command.

◆ RunsWhenDisabled()

bool frc2::ParallelRaceGroup::RunsWhenDisabled ( ) const
overridevirtual

Whether the given command should run when the robot is disabled.

Override to return true if the command should run when disabled.

Returns
whether the command should run when the robot is disabled

Reimplemented from frc2::Command.


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