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tqueue< T > Class Template Reference

List of all members.

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Detailed Description

template<class T>
class tqueue< T >

A threadsafe queue class much like an STL queue.

Public Types
typedef queue< T >::value_type	value_type
	The type of datum stored in the queue.
typedef queue< T >::size_type	size_type
	The type used to represent the size of the queue.
Public Methods
	tqueue ()
	Constructor.
bool	empty () const
	Returns true if the queue is empty.
size_type	size () const
	Returns the number of items in the queue.
value_type &	front ()
	Returns the item at the head of the queue (least recently pushed).
const value_type &	front () const
	Returns the item at the head of the queue (least recently pushed).
value_type &	back ()
	Returns the item at the tail of the queue (most recently pushed).
const value_type &	back () const
	Returns the item at the tail of the queue (most recently pushed).
bool	push (const value_type &v)
	Adds an item to the back of the queue.
void	pop ()
	Removes an item from the front of the queue.
T	get ()
	Returns and removes an item from the front of the queue.
bool	wait (T &out, bool *pending=0)
	Waits for the queue to become non-empty, then atomically retrieves an item from the queue, sets out, and returns true; or returns false if the queue has been closed.
void	waiter_pending ()
void	close ()
	Closes the queue so all pending and future calls to wait() will return immediately.
void	starve ()
	Starves one waiter, causing its "wait" to return false.
bool	is_closed ()
	Is the queue closed?
unsigned int	count_waiters ()
	Returns the number of waiters on the thread.
int	extra_capacity ()
	Returns the number of threads currently waiting on the queue (or zero if none) minus the number of elements waiting in the queue.

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Member Typedef Documentation

template<class T> typedef queue<T>::size_type tqueue< T >::size_type

The type used to represent the size of the queue.

template<class T> typedef queue<T>::value_type tqueue< T >::value_type

The type of datum stored in the queue.

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Constructor & Destructor Documentation

template<class T> tqueue< T >::tqueue (    )

Constructor.

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Member Function Documentation

template<class T> const value_type& tqueue< T >::back (    )  const

Returns the item at the tail of the queue (most recently pushed).

template<class T> value_type& tqueue< T >::back (    )

Returns the item at the tail of the queue (most recently pushed).

template<class T> void tqueue< T >::close (    )

Closes the queue so all pending and future calls to wait() will return immediately.

template<class T> unsigned int tqueue< T >::count_waiters (    )

Returns the number of waiters on the thread.

template<class T> bool tqueue< T >::empty (    )  const

Returns true if the queue is empty.

template<class T> int tqueue< T >::extra_capacity (    )

Returns the number of threads currently waiting on the queue (or zero if none) minus the number of elements waiting in the queue. Returns a positive number if there is an "overflow" of waiters, and a negative number if there is an "underflow" of waiters.

template<class T> const value_type& tqueue< T >::front (    )  const

Returns the item at the head of the queue (least recently pushed).

template<class T> value_type& tqueue< T >::front (    )

Returns the item at the head of the queue (least recently pushed).

template<class T> T tqueue< T >::get (    )

Returns and removes an item from the front of the queue.

template<class T> bool tqueue< T >::is_closed (    )

Is the queue closed?

template<class T> void tqueue< T >::pop (    )

Removes an item from the front of the queue.

template<class T> bool tqueue< T >::push (  const value_type &    v )

Adds an item to the back of the queue. Returns true if the item will be immediately dispatched.

template<class T> size_type tqueue< T >::size (    )  const

Returns the number of items in the queue.

template<class T> void tqueue< T >::starve (    )

Starves one waiter, causing its "wait" to return false.

template<class T> bool tqueue< T >::wait (  T &    out, bool *    pending = 0 )

Waits for the queue to become non-empty, then atomically retrieves an item from the queue, sets out, and returns true; or returns false if the queue has been closed.

template<class T> void tqueue< T >::waiter_pending (    )

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

• tqueue

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