iox::popo::PublisherImpl

The PublisherImpl class implements the typed publisher API. More...

#include <iceoryx_posh/internal/popo/publisher_impl.hpp>

Inherits from iox::popo::BasePublisher<>, iox::popo::PublisherInterface< T, mepoo::NoUserHeader >

Public Functions

	Name
	PublisherImpl(const capro::ServiceDescription & service, const PublisherOptions & publisherOptions =PublisherOptions())
	PublisherImpl(const PublisherImpl & other)
PublisherImpl &	operator=(const PublisherImpl & )
	PublisherImpl(PublisherImpl && rhs)
PublisherImpl &	operator=(PublisherImpl && rhs)
virtual	~PublisherImpl() =default
template <typename... Args> cxx::expected< Sample< T, H >, AllocationError >	loan(Args &&... args) loan Get a sample from loaned shared memory and consctruct the data with the given arguments.
void	publish(Sample< T, H > && sample) override publish Publishes the given sample and then releases its loan.
cxx::expected< AllocationError >	publishCopyOf(const T & val) publishCopyOf Copy the provided value into a loaned shared memory chunk and publish it.
template <typename Callable ,typename... ArgTypes> cxx::expected< AllocationError >	publishResultOf(Callable c, ArgTypes... args) publishResultOf Loan a sample from memory, execute the provided callable to write to it, then publish it.

Additional inherited members

Public Types inherited from iox::popo::BasePublisher<>

	Name
using port_t	PortType

Public Functions inherited from iox::popo::BasePublisher<>

	Name
	BasePublisher(const BasePublisher & other)
	BasePublisher(BasePublisher && rhs)
virtual	~BasePublisher()
uid_t	getUid() const uid Get the UID of the publisher.
capro::ServiceDescription	getServiceDescription() const getServiceDescription Get the service description of the publisher.
void	offer() offer Offer the service to be subscribed to.
void	stopOffer() stopOffer Stop offering the service.
bool	isOffered() const isOffered
bool	hasSubscribers() const hasSubscribers

Protected Functions inherited from iox::popo::BasePublisher<>

	Name
	BasePublisher() =default
	BasePublisher(const capro::ServiceDescription & service, const PublisherOptions & publisherOptions)
const port_t &	port() const port
port_t &	port() port

Protected Attributes inherited from iox::popo::BasePublisher<>

	Name
port_t	m_port

Detailed Description

template <typename T ,
typename H  =mepoo::NoUserHeader,
typename BasePublisherType  =BasePublisher<>>
class iox::popo::PublisherImpl;

The PublisherImpl class implements the typed publisher API.

Note: Not intended for public usage! Use the [Publisher](/v2.0.1/API-reference/posh/Classes/classiox_1_1popo_1_1Publisher/) instead!

Public Functions Documentation

function PublisherImpl

explicit PublisherImpl(
    const capro::ServiceDescription & service,
    const PublisherOptions & publisherOptions =PublisherOptions()
)

function PublisherImpl

PublisherImpl(
    const PublisherImpl & other
)

function operator=

PublisherImpl & operator=(
    const PublisherImpl & 
)

function PublisherImpl

PublisherImpl(
    PublisherImpl && rhs
)

function operator=

PublisherImpl & operator=(
    PublisherImpl && rhs
)

function ~PublisherImpl

virtual ~PublisherImpl() =default

function loan

template <typename... Args>
cxx::expected< Sample< T, H >, AllocationError > loan(
    Args &&... args
)

loan Get a sample from loaned shared memory and consctruct the data with the given arguments.

Parameters:

• args Arguments used to construct the data.

Return: An instance of the sample that resides in shared memory or an error if unable ot allocate memory to loan.

The loaned sample is automatically released when it goes out of scope.

function publish

void publish(
    Sample< T, H > && sample
) override

publish Publishes the given sample and then releases its loan.

Parameters:

• sample The sample to publish.

function publishCopyOf

cxx::expected< AllocationError > publishCopyOf(
    const T & val
)

publishCopyOf Copy the provided value into a loaned shared memory chunk and publish it.

Parameters:

• val Value to copy.

Return: Error if unable to allocate memory to loan.

function publishResultOf

template <typename Callable ,
typename... ArgTypes>
cxx::expected< AllocationError > publishResultOf(
    Callable c,
    ArgTypes... args
)

publishResultOf Loan a sample from memory, execute the provided callable to write to it, then publish it.

Parameters:

• c Callable with the signature void(T, ArgTypes...) that write's it's result to T.
• args The arguments of the callable.

Return: Error if unable to allocate memory to loan.

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Updated on 2 April 2022 at 16:37:47 CEST