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## Class thread_group

boost::thread_group — The thread_group class provides a container for easy grouping of threads to simplify several common thread creation and management idioms.

## Synopsis

    class thread_group : private boost::noncopyable   // Exposition only
    {
    public:
      // construct/copy/destruct
      thread_group();
      ~thread_group();

      // modifier
      thread* create_thread(const boost::function0<void>&);
      void add_thread(thread* thrd);
      void remove_thread(thread* thrd);
      void join_all();
    };

## Description

### `thread_group` construct/copy/destruct

1.     thread_group();

   Effects: Constructs an empty thread_group container.

2.     ~thread_group();

   Effects: Destroys each contained thread object. Destroys `*this`.
   Notes: Behavior is undefined if another thread references `*this` during the execution of the destructor.

### `thread_group` modifier

1.     thread* create_thread(const boost::function0<void>& threadfunc);

   Effects: Creates a new thread object that executes `threadfunc` and adds it to the `thread_group` container object's list of managed thread objects.
   Returns: Pointer to the newly created thread object.

2.     void add_thread(thread* thrd thrd);

   Effects: Adds `thrd` to the thread_group object's list of managed thread objects. The `thrd` object must have been allocated via `operator new` and will be deleted when the group is destroyed.

3.     void remove_thread(thread* thrd thrd);

   Effects: Removes `thread` from `*this`'s list of managed thread objects.
   Throws: ??? if `thrd` is not in `*this`'s list of managed thread objects.

4.     void join_all();

   Effects: Calls `join()` on each of the managed thread objects.

| Copyright © 2001-2003 William E. Kempf