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tbb::flow::interface7::graph Class Reference

The graph class. More...

`#include <flow_graph.h>`

Inheritance diagram for tbb::flow::interface7::graph:

## Public Types
typedef graph_iterator< graph, graph_node > | iterator
typedef graph_iterator< const graph, const graph_node > | const_iterator

## Public Member Functions
| graph ()
| Constructs a graph with isolated task_group_context.
| graph (task_group_context &use_this_context)
| Constructs a graph with use_this_context as context.
| ~graph ()
| Destroys the graph. More...
void | set_name (const char *name)
void | increment_wait_count ()
| Used to register that an external entity may still interact with the graph. More...
void | decrement_wait_count ()
| Deregisters an external entity that may have interacted with the graph. More...
template<typename Receiver , typename Body >
void | run (Receiver &r, Body body)
| Spawns a task that runs a body and puts its output to a specific receiver. More...
template<typename Body >
void | run (Body body)
| Spawns a task that runs a function object. More...
void | wait_for_all ()
| Wait until graph is idle and decrement_wait_count calls equals increment_wait_count calls. More...
task * | root_task ()
| Returns the root task of the graph.
void | set_active (bool a=true)
bool | is_active ()
iterator | begin ()
| start iterator
iterator | end ()
| end iterator
const_iterator | begin () const
| start const iterator
const_iterator | end () const
| end const iterator
const_iterator | cbegin () const
| start const iterator
const_iterator | cend () const
| end const iterator
bool | is_cancelled ()
| return status of graph execution
bool | exception_thrown ()
void | reset (__TBB_PFG_RESET_ARG(reset_flags f=rf_reset_protocol))

## Friends
class | graph_node
template<typename C , typename N >
class | graph_iterator

## Detailed Description

The graph class.

This class serves as a handle to the graph

## Constructor & Destructor Documentation

tbb::flow::interface7::graph::~graph | ( | ) |  |
| inline

Destroys the graph.

Calls wait_for_all, then destroys the root task and context.

## Member Function Documentation

void tbb::flow::interface7::graph::decrement_wait_count | ( | ) |  |
| inline

Deregisters an external entity that may have interacted with the graph.

The graph will not return from wait_for_all until all the number of decrement_wait_count calls matches the number of increment_wait_count calls.

void tbb::flow::interface7::graph::increment_wait_count | ( | ) |  |
| inline

Used to register that an external entity may still interact with the graph.

The graph will not return from wait_for_all until a matching number of decrement_wait_count calls is made.

template<typename Receiver , typename Body >

void tbb::flow::interface7::graph::run | ( | Receiver & | r,
|  | Body | body
| ) |  |
| inline

Spawns a task that runs a body and puts its output to a specific receiver.

The task is spawned as a child of the graph. This is useful for running tasks that need to block a wait_for_all() on the graph. For example a one-off source.

template<typename Body >

void tbb::flow::interface7::graph::run | ( | Body | body) |  |
| inline

Spawns a task that runs a function object.

The task is spawned as a child of the graph. This is useful for running tasks that need to block a wait_for_all() on the graph. For example a one-off source.

void tbb::flow::interface7::graph::wait_for_all | ( | ) |  |
| inline

Wait until graph is idle and decrement_wait_count calls equals increment_wait_count calls.

The waiting thread will go off and steal work while it is block in the wait_for_all.

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

- flow_graph.h

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