rclcpp::message_memory_strategy::MessageMemoryStrategy< MessageT, Alloc > Class Template Reference

Default allocation strategy for messages received by subscriptions. More...

#include <message_memory_strategy.hpp>

Public Types
using	MessageAllocTraits = allocator::AllocRebind< MessageT, Alloc >
using	MessageAlloc = typename MessageAllocTraits::allocator_type
using	MessageDeleter = allocator::Deleter< MessageAlloc, MessageT >

Public Member Functions
	MessageMemoryStrategy ()
	MessageMemoryStrategy (std::shared_ptr< Alloc > allocator)
virtual std::shared_ptr< MessageT >	borrow_message ()
	By default, dynamically allocate a new message. More...
virtual void	return_message (std::shared_ptr< MessageT > &msg)
	Release ownership of the message, which will deallocate it if it has no more owners. More...

Static Public Member Functions
static SharedPtr	create_default ()
	Default factory method. More...

Public Attributes
std::shared_ptr< MessageAlloc >	message_allocator_
MessageDeleter	message_deleter_

Detailed Description

template<typename MessageT, typename Alloc = std::allocator<void>>
class rclcpp::message_memory_strategy::MessageMemoryStrategy< MessageT, Alloc >

Default allocation strategy for messages received by subscriptions.

A message memory strategy must be templated on the type of the subscription it belongs to.

Member Typedef Documentation

MessageAllocTraits

template<typename MessageT, typename Alloc = std::allocator<void>>

using rclcpp::message_memory_strategy::MessageMemoryStrategy< MessageT, Alloc >::MessageAllocTraits = allocator::AllocRebind<MessageT, Alloc>

MessageAlloc

template<typename MessageT, typename Alloc = std::allocator<void>>

using rclcpp::message_memory_strategy::MessageMemoryStrategy< MessageT, Alloc >::MessageAlloc = typename MessageAllocTraits::allocator_type

MessageDeleter

template<typename MessageT, typename Alloc = std::allocator<void>>

using rclcpp::message_memory_strategy::MessageMemoryStrategy< MessageT, Alloc >::MessageDeleter = allocator::Deleter<MessageAlloc, MessageT>

Constructor & Destructor Documentation

MessageMemoryStrategy() [1/2]

template<typename MessageT, typename Alloc = std::allocator<void>>

rclcpp::message_memory_strategy::MessageMemoryStrategy< MessageT, Alloc >::MessageMemoryStrategy ( )

inline

MessageMemoryStrategy() [2/2]

template<typename MessageT, typename Alloc = std::allocator<void>>

rclcpp::message_memory_strategy::MessageMemoryStrategy< MessageT, Alloc >::MessageMemoryStrategy ( std::shared_ptr< Alloc >  allocator )

inlineexplicit

Member Function Documentation

create_default()

template<typename MessageT, typename Alloc = std::allocator<void>>

static SharedPtr rclcpp::message_memory_strategy::MessageMemoryStrategy< MessageT, Alloc >::create_default ( )

inlinestatic

Default factory method.

borrow_message()

template<typename MessageT, typename Alloc = std::allocator<void>>

virtual std::shared_ptr<MessageT> rclcpp::message_memory_strategy::MessageMemoryStrategy< MessageT, Alloc >::borrow_message ( )

inlinevirtual

By default, dynamically allocate a new message.

Returns

Shared pointer to the new message.

Reimplemented in rclcpp::strategies::message_pool_memory_strategy::MessagePoolMemoryStrategy< MessageT, Size, >.

return_message()

template<typename MessageT, typename Alloc = std::allocator<void>>

virtual void rclcpp::message_memory_strategy::MessageMemoryStrategy< MessageT, Alloc >::return_message ( std::shared_ptr< MessageT > &  msg )

inlinevirtual

Release ownership of the message, which will deallocate it if it has no more owners.

Parameters

[in]

msg

Shared pointer to the message we are returning.

Reimplemented in rclcpp::strategies::message_pool_memory_strategy::MessagePoolMemoryStrategy< MessageT, Size, >.

Member Data Documentation

message_allocator_

template<typename MessageT, typename Alloc = std::allocator<void>>

std::shared_ptr<MessageAlloc> rclcpp::message_memory_strategy::MessageMemoryStrategy< MessageT, Alloc >::message_allocator_

message_deleter_

template<typename MessageT, typename Alloc = std::allocator<void>>

MessageDeleter rclcpp::message_memory_strategy::MessageMemoryStrategy< MessageT, Alloc >::message_deleter_

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

• include/rclcpp/message_memory_strategy.hpp