WeavingBuilder< POL, N, FUN > Struct Template Reference

#include "steam/engine/weaving-pattern-builder.hpp"

Description

template<class POL, uint N, class FUN>
struct steam::engine::WeavingBuilder< POL, N, FUN >

A low-level Builder to prepare and adapt for a specific node invocation.

In this context, »weaving« refers to the way parameters and results of an processing function are provided, combined and forwarded within the setup for an actual Render Node invocation. When the invocation happens, a kind of preconfigured blue print or invocation plan is executed; the purpose of the build at »Level-2« (≙the purpose of this code) is to preconfigure this invocation scheme. Using a low level builder as controlled by the actual NodeBuilder and PortBuilder allows to introduce extension points and helps to abstract away internal technical details of the invocation.

Template Parameters

POL	allocation and context configuration policy
N	maximum number of input and output slots
FUN	function or invocation adapter to invoke

Definition at line 368 of file weaving-pattern-builder.hpp.

Public Types
using	FunSpec = _ProcFun< FUN >
using	ProviderRef = std::reference_wrapper< BufferProvider >
using	TurnoutWeaving = Turnout< SimpleDirectInvoke< N, FUN > >
using	TypeMarker = std::function< BuffDescr(BufferProvider &)>

Public Member Functions
template<typename... INIT>
	WeavingBuilder (FUN &&init, StrView nodeSymb, StrView portSpec, INIT &&...alloInit)
template<class BU >
WeavingBuilder &&	appendBufferTypes (uint cnt)
WeavingBuilder &&	attachToLeadPort (ProcNode &lead, uint portNr)
auto	build ()
WeavingBuilder &&	connectRemainingInputs (DataBuilder< POL, ProcNodeRef > &knownLeads, uint defaultPort)
WeavingBuilder &&	fillRemainingBufferTypes ()
WeavingBuilder &&	selectResultSlot (uint idx)

Static Public Attributes
static constexpr uint	FAN_I = FunSpec::FAN_I
static constexpr uint	FAN_O = FunSpec::FAN_O
static constexpr SizMark< sizeof(TurnoutWeaving)>	sizMark {}

Public Attributes
std::vector< TypeMarker >	buffTypes
Depend< EngineCtx >	ctx
FUN	fun_
DataBuilder< POL, PortRef >	leadPorts
StrView	nodeSymb_
StrView	portSpec_
std::vector< ProviderRef >	providers
uint	resultSlot {0}

Private Member Functions
void	maybeFillDefaultProviders (size_t maxSlots)

Additional Inherited Members
Protected Member Functions inherited from MoveOnly
	MoveOnly (MoveOnly &&)=default
	MoveOnly (MoveOnly const &)=delete
MoveOnly &	operator= (MoveOnly &&)=delete
MoveOnly &	operator= (MoveOnly const &)=delete

Inheritance diagram for WeavingBuilder< POL, N, FUN >:

Collaboration diagram for WeavingBuilder< POL, N, FUN >:

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

• weaving-pattern-builder.hpp