# tbb::flow::interface6::limiter_node< T > Class Template Reference

Forwards messages only if the threshold has not been reached. More...

`#include <flow_graph.h>`

Inheritance diagram for tbb::flow::interface6::limiter_node< T >:

List of all members.

## Public Types

typedef T | input_type
| The input type of this receiver.
typedef T | output_type
| The output type of this sender.
typedef sender< input_type > | predecessor_type
| The predecessor type for this node.
typedef receiver< output_type > | successor_type
| The successor type for this node.

## Public Member Functions

| limiter_node (graph &g, size_t threshold, int num_decrement_predecessors=0)
| Constructor.
| limiter_node (const limiter_node &src)
| Copy constructor.
bool | register_successor (receiver< output_type > &r)
| Replace the current successor with this new successor.
bool | remove_successor (receiver< output_type > &r)
| Removes a successor from this node.
bool | register_predecessor (predecessor_type &src)
| Removes src from the list of cached predecessors.
bool | remove_predecessor (predecessor_type &src)
| Removes src from the list of cached predecessors.

## Public Attributes

internal::decrementer < limiter_node< T > > | decrement
| The internal receiver< continue_msg > that decrements the count.

## Protected Member Functions

task * | try_put_task (const T &t)
| Puts an item to this receiver.
void | reset ()
void | reset_receiver ()

## Friends

class | internal::forward_task_bypass< limiter_node< T > >
class | internal::decrementer< limiter_node< T > >
class | run_and_put_task
| put item to successor; return task to run the successor if possible.
class | internal::broadcast_cache
class | internal::round_robin_cache

## Detailed Description

### template<typename T>
class tbb::flow::interface6::limiter_node< T >

Forwards messages only if the threshold has not been reached.

This node forwards items until its threshold is reached. It contains no buffering. If the downstream node rejects, the message is dropped.

## Member Function Documentation

template<typename T >

bool tbb::flow::interface6::limiter_node< T >::remove_successor | ( | receiver< output_type > & | r | ) | `[inline]`

Removes a successor from this node.

r.remove_predecessor(*this) is also called.

References tbb::flow::interface6::receiver< T >::remove_predecessor().

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

- flow_graph.h

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