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Constructors for Flow Graph nodes

Constructors for Flow Graph nodes#

Note

To enable this feature, define the TBB_PREVIEW_FLOW_GRAPH_FEATURES macro to 1.

Description#

The “Helper Functions for Expressing Graphs” feature adds a set of new constructors that can be used to construct a node that follows or precedes a set of nodes.

Where possible, the constructors support Class Template Argument Deduction (since C++17).

API#

Syntax#

// continue_node
continue_node(follows(...), Body body, Policy = Policy());
continue_node(precedes(...), Body body, Policy = Policy());

continue_node(follows(...), int number_of_predecessors, Body body, Policy = Policy());
continue_node(precedes(...), int number_of_predecessors, Body body, Policy = Policy());

// function_node
function_node(follows(...), std::size_t concurrency, Policy = Policy());
function_node(precedes(...), std::size_t concurrency, Policy = Policy());

// input_node
input_node(precedes(...), body);

// multifunction_node
multifunction_node(follows(...), std::size_t concurrency, Body body);
multifunction_node(precedes(...), std::size_t concurrency, Body body);

// async_node
async_node(follows(...), std::size_t concurrency, Body body);
async_node(precedes(...), std::size_t concurrency, Body body);

// overwrite_node
explicit overwrite_node(follows(...));
explicit overwrite_node(precedes(...));

// write_once_node
explicit write_once_node(follows(...));
explicit write_once_node(precedes(...));

// buffer_node
explicit buffer_node(follows(...));
explicit buffer_node(precedes(...));

// queue_node
explicit queue_node(follows(...));
explicit queue_node(precedes(...));

// priority_queue_node
explicit priority_queue_node(follows(...), const Compare& comp = Compare());
explicit priority_queue_node(precedes(...), const Compare& compare = Compare());

// sequencer_node
sequencer_node(follows(...), const Sequencer& s);
sequencer_node(precedes(...), const Sequencer& s);

// limiter_node
limiter_node(follows(...), std::size_t threshold);
limiter_node(precedes(...), std::size_t threshold);

// broadcast_node
explicit broadcast_node(follows(...));
explicit broadcast_node(precedes(...));

// join_node
explicit join_node(follows(...), Policy = Policy());
explicit join_node(precedes(...), Policy = Policy());

// split_node
explicit split_node(follows(...));
explicit split_node(precedes(...));

// indexer_node
indexer_node(follows(...));
indexer_node(precedes(...));

See Also#

follows and precedes function templates

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