task_scheduler_observer

Summary

Class that represents thread's interest in task scheduling services.

Syntax

class task_scheduler_observer;

Header

#include "tbb/task_scheduler_observer.h"

Description

A task_scheduler_observer permits clients to observe when a thread starts or stops participating in task scheduling (globally). You typically derive your own observer class from task_scheduler_observer, and override virtual methods on_scheduler_entry or on_scheduler_exit. An instance has a state observing or not observing. Remember to call observe() to enable observation.

Members

namespace tbb {
    class task_scheduler_observer {
    public:
        task_scheduler_observer();
        virtual ~task_scheduler_observer();
        void observe( bool state=true );
        bool is_observing() const;
        virtual void on_scheduler_entry( bool is_worker ) {}
        virtual void on_scheduler_exit( bool is_worker } {}
    };
  }