ucxx::RequestTagBuilder Class Reference

Builder class for constructing std::shared_ptr<ucxx::RequestTag> objects. More...

#include <request_tag_builder.h>

Inheritance diagram for ucxx::RequestTagBuilder:

Public Member Functions
	RequestTagBuilder (std::shared_ptr< Component > endpointOrWorker, std::variant< data::TagSend, data::TagReceive, data::TagReceiveWithHandle > requestData)
	Constructor for RequestTagBuilder with required parameters.
std::shared_ptr< RequestTag >	build ()
	Build and return the RequestTag.
	operator std::shared_ptr< RequestTag > ()
	Implicit conversion operator to shared_ptr<RequestTag>.
	operator std::shared_ptr< Request > ()
	Implicit conversion operator to shared_ptr<Request>.
Public Member Functions inherited from ucxx::RequestCallbackBuilderBase< RequestTagBuilder >
RequestTagBuilder &	callbackFunction (RequestCallbackUserFunction fn) &
	Set the user-defined callback function to call upon completion.
RequestTagBuilder &	callbackData (RequestCallbackUserData data) &
	Set the user-defined data to pass to the callback function.
Public Member Functions inherited from ucxx::RequestBuilderBase< RequestTagBuilder >
	RequestBuilderBase ()=default
	Default constructor.
RequestBuilderBase &	operator= (const RequestBuilderBase &)=delete
	Copy assignment disabled to prevent duplicate request submissions.
RequestTagBuilder &	pythonFuture (bool enable=true) &
	Configure Python future support.

Additional Inherited Members
Protected Member Functions inherited from ucxx::RequestBuilderBase< RequestTagBuilder >
void	markBuilt ()
	Assert that build() has not been called yet, then mark as built.
Protected Attributes inherited from ucxx::RequestCallbackBuilderBase< RequestTagBuilder >
RequestCallbackUserFunction	_callbackFunction
	User callback on completion.
RequestCallbackUserData	_callbackData
	Data passed to callback.
Protected Attributes inherited from ucxx::RequestBuilderBase< RequestTagBuilder >
bool	_enablePythonFuture
	Enable Python future support.
bool	_built
	Whether build() has already been called.

Detailed Description

Builder class for constructing std::shared_ptr<ucxx::RequestTag> objects.

Request builders capture the arguments required to create a request and expose optional settings through fluent setters. Construction happens when build() is called or when the builder is implicitly converted to a compatible std::shared_ptr.

Request builders are move-only and single-use. Calling build() or implicitly converting the same builder object more than once throws std::logic_error. The builder is consumed before request validation or construction completes; if that first attempt throws, retrying the same builder still throws std::logic_error.

Request builder objects are not thread-safe. Accessing the same builder object from multiple threads requires external synchronization. Distinct builder objects are independent.

Each request-specific factory function returns the corresponding builder. Required arguments are passed to the factory function, while optional settings such as Python future notification and completion callbacks are configured through method chaining when supported by that request type.

The endpointOrWorker and requestData are required and must be provided to requestTagBuilder().

auto req = ucxx::requestTagBuilder(endpointOrWorker, tagSendData)
             .pythonFuture(true)
             .callbackFunction(callback)
             .callbackData(callbackData)
             .build();
 
std::shared_ptr<ucxx::RequestTag> tagReq =
  ucxx::requestTagBuilder(endpointOrWorker, tagReceiveData);

Constructor & Destructor Documentation

RequestTagBuilder()

ucxx::RequestTagBuilder::RequestTagBuilder ( std::shared_ptr< Component > endpointOrWorker, std::variant< data::TagSend, data::TagReceive, data::TagReceiveWithHandle > requestData )

explicit

Constructor for RequestTagBuilder with required parameters.

Parameters

[in]	endpointOrWorker	the parent component, which may be a std::shared_ptr<Endpoint> or std::shared_ptr<Worker>.
[in]	requestData	container of the specified message type, including all type-specific data.

Member Function Documentation

build()

std::shared_ptr< RequestTag > ucxx::RequestTagBuilder::build ( )

nodiscard

Build and return the RequestTag.

Returns

The constructed shared_ptr<ucxx::RequestTag> object.

operator std::shared_ptr< Request >()

ucxx::RequestTagBuilder::operator std::shared_ptr< Request >

(

)

Implicit conversion operator to shared_ptr<Request>.

Returns

The constructed request as shared_ptr<ucxx::Request>.

operator std::shared_ptr< RequestTag >()

ucxx::RequestTagBuilder::operator std::shared_ptr< RequestTag >

(

)

Implicit conversion operator to shared_ptr<RequestTag>.

Returns

The constructed shared_ptr<ucxx::RequestTag> object.

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

• /__w/ucxx/ucxx/cpp/include/ucxx/request_tag_builder.h