ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET > Class Template Reference

Provides a hash table of <BUCKET>s as an implementation for a timer queue. More...

#include <Timer_Hash_T.h>

Inheritance diagram for ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >:

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Collaboration diagram for ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >:

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List of all members.

Public Types

typedef ACE_Timer_Hash_Iterator_T<
TYPE, FUNCTOR, ACE_LOCK,
BUCKET > 
HASH_ITERATOR
 Type of iterator.
typedef ACE_Timer_Queue_T<
TYPE, FUNCTOR, ACE_LOCK > 
INHERITED
 Type inherited from.

Public Member Functions

 ACE_Timer_Hash_T (size_t table_size, FUNCTOR *upcall_functor=0, ACE_Free_List< ACE_Timer_Node_T< TYPE > > *freelist=0)
 ACE_Timer_Hash_T (FUNCTOR *upcall_functor=0, ACE_Free_List< ACE_Timer_Node_T< TYPE > > *freelist=0)
virtual ~ACE_Timer_Hash_T (void)
 Destructor.
virtual int is_empty (void) const
 True if queue is empty, else false.
virtual const ACE_Time_Valueearliest_time (void) const
virtual int reset_interval (long timer_id, const ACE_Time_Value &interval)
virtual int cancel (const TYPE &type, int dont_call_handle_close=1)
virtual int cancel (long timer_id, const void **act=0, int dont_call_handle_close=1)
virtual int expire (void)
virtual int expire (const ACE_Time_Value &current_time)
virtual ACE_Timer_Queue_Iterator_T<
TYPE, FUNCTOR, ACE_LOCK > & 
iter (void)
 Returns a pointer to this <ACE_Timer_Queue>'s iterator.
virtual ACE_Timer_Node_T<
TYPE > * 
remove_first (void)
 Removes the earliest node from the queue and returns it.
virtual void dump (void) const
 Dump the state of an object.
virtual ACE_Timer_Node_T<
TYPE > * 
get_first (void)
 Reads the earliest node from the queue and returns it.

Private Member Functions

virtual long schedule_i (const TYPE &type, const void *act, const ACE_Time_Value &future_time, const ACE_Time_Value &interval)
virtual int dispatch_info_i (const ACE_Time_Value &current_time, ACE_Timer_Node_Dispatch_Info_T< TYPE > &info)
 Non-locking version of dispatch_info ().
virtual void reschedule (ACE_Timer_Node_T< TYPE > *)
 Reschedule an "interval" <ACE_Timer_Node>.
void find_new_earliest (void)
 Finds the earliest node.
 ACE_Timer_Hash_T (const ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET > &)
void operator= (const ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET > &)

Private Attributes

size_t size_
 Keeps track of the size of the queue.
BUCKET ** table_
 Table of BUCKETS.
size_t table_size_
 Keeps track of the size of table_.
ACE_Timer_Hash_Upcall< TYPE,
FUNCTOR, ACE_LOCK > 
table_functor_
 Functor used for the table's timer queues.
size_t earliest_position_
 Index to the position with the earliest entry.
HASH_ITERATORiterator_
 Iterator used to expire timers.

Friends

class ACE_Timer_Hash_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >
 Iterator is a friend.

Detailed Description

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
class ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >

Provides a hash table of <BUCKET>s as an implementation for a timer queue.

This implementation uses a hash table of BUCKETs. The hash is based on the time_value of the event. Unlike other Timer Queues, ACE_Timer_Hash does not expire events in order.


Member Typedef Documentation

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
typedef ACE_Timer_Hash_Iterator_T<TYPE, FUNCTOR, ACE_LOCK, BUCKET> ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::HASH_ITERATOR
 

Type of iterator.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
typedef ACE_Timer_Queue_T<TYPE, FUNCTOR, ACE_LOCK> ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::INHERITED
 

Type inherited from.


Constructor & Destructor Documentation

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::ACE_Timer_Hash_T size_t  table_size,
FUNCTOR *  upcall_functor = 0,
ACE_Free_List< ACE_Timer_Node_T< TYPE > > *  freelist = 0
 

Default constructor. <table_size> determines the size of the hash table. <upcall_functor> is the instance of the FUNCTOR to be used by the buckets. If <upcall_functor> is 0, a default FUNCTOR will be created.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::ACE_Timer_Hash_T FUNCTOR *  upcall_functor = 0,
ACE_Free_List< ACE_Timer_Node_T< TYPE > > *  freelist = 0
 

Default constructor. <upcall_functor> is the instance of the FUNCTOR to be used by the queue. If <upcall_functor> is 0, Timer Hash will create a default FUNCTOR. <freelist> the freelist of timer nodes. If 0, then a default freelist will be created. The default size will be ACE_DEFAULT_TIMERS and there will be no preallocation.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::~ACE_Timer_Hash_T void   )  [virtual]
 

Destructor.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::ACE_Timer_Hash_T const ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET > &   )  [private]
 


Member Function Documentation

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
int ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::cancel long  timer_id,
const void **  act = 0,
int  dont_call_handle_close = 1
[virtual]
 

Cancel the single timer that matches the <timer_id> value (which was returned from the <schedule> method). If act is non-NULL then it will be set to point to the ``magic cookie'' argument passed in when the timer was registered. This makes it possible to free up the memory and avoid memory leaks. If <dont_call> is 0 then the <functor> will be invoked. Returns 1 if cancellation succeeded and 0 if the <timer_id> wasn't found.

Implements ACE_Timer_Queue_T< TYPE, FUNCTOR, ACE_LOCK >.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
int ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::cancel const TYPE &  type,
int  dont_call_handle_close = 1
[virtual]
 

Cancel all timer associated with <type>. If <dont_call> is 0 then the <functor> will be invoked. Returns number of timers cancelled.

Implements ACE_Timer_Queue_T< TYPE, FUNCTOR, ACE_LOCK >.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
int ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::dispatch_info_i const ACE_Time_Value current_time,
ACE_Timer_Node_Dispatch_Info_T< TYPE > &  info
[private, virtual]
 

Non-locking version of dispatch_info ().

Reimplemented from ACE_Timer_Queue_T< TYPE, FUNCTOR, ACE_LOCK >.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
void ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::dump void   )  const [virtual]
 

Dump the state of an object.

Reimplemented from ACE_Timer_Queue_T< TYPE, FUNCTOR, ACE_LOCK >.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
const ACE_Time_Value & ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::earliest_time void   )  const [virtual]
 

Returns the time of the earlier node in the <ACE_Timer_Hash>. Must be called on a non-empty queue.

Implements ACE_Timer_Queue_T< TYPE, FUNCTOR, ACE_LOCK >.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
int ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::expire const ACE_Time_Value current_time  )  [virtual]
 

Run the <functor> for all timers whose values are <= <cur_time>. This does not account for <timer_skew>. Returns the number of timers canceled.

Reimplemented from ACE_Timer_Queue_T< TYPE, FUNCTOR, ACE_LOCK >.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
int ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::expire void   )  [virtual]
 

Run the <functor> for all timers whose values are <= <ACE_OS::gettimeofday>. Also accounts for <timer_skew>. Returns the number of timers canceled.

Reimplemented from ACE_Timer_Queue_T< TYPE, FUNCTOR, ACE_LOCK >.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
void ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::find_new_earliest void   )  [private]
 

Finds the earliest node.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
ACE_Timer_Node_T< TYPE > * ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::get_first void   )  [virtual]
 

Reads the earliest node from the queue and returns it.

Implements ACE_Timer_Queue_T< TYPE, FUNCTOR, ACE_LOCK >.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
int ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::is_empty void   )  const [virtual]
 

True if queue is empty, else false.

Implements ACE_Timer_Queue_T< TYPE, FUNCTOR, ACE_LOCK >.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
ACE_Timer_Queue_Iterator_T< TYPE, FUNCTOR, ACE_LOCK > & ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::iter void   )  [virtual]
 

Returns a pointer to this <ACE_Timer_Queue>'s iterator.

Implements ACE_Timer_Queue_T< TYPE, FUNCTOR, ACE_LOCK >.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
void ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::operator= const ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET > &   )  [private]
 

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
ACE_Timer_Node_T< TYPE > * ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::remove_first void   )  [virtual]
 

Removes the earliest node from the queue and returns it.

Implements ACE_Timer_Queue_T< TYPE, FUNCTOR, ACE_LOCK >.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
void ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::reschedule ACE_Timer_Node_T< TYPE > *   )  [private, virtual]
 

Reschedule an "interval" <ACE_Timer_Node>.

Implements ACE_Timer_Queue_T< TYPE, FUNCTOR, ACE_LOCK >.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
int ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::reset_interval long  timer_id,
const ACE_Time_Value interval
[virtual]
 

Resets the interval of the timer represented by <timer_id> to <interval>, which is specified in relative time to the current <gettimeofday>. If <interval> is equal to <ACE_Time_Value::zero>, the timer will become a non-rescheduling timer. Returns 0 if successful, -1 if not.

Implements ACE_Timer_Queue_T< TYPE, FUNCTOR, ACE_LOCK >.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
long ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::schedule_i const TYPE &  type,
const void *  act,
const ACE_Time_Value future_time,
const ACE_Time_Value interval
[private, virtual]
 

Schedule <type> that will expire at <future_time>, which is specified in absolute time. If it expires then <act> is passed in as the value to the <functor>. If <interval> is != to <ACE_Time_Value::zero> then it is used to reschedule the <type> automatically, using relative time to the current <gettimeofday>. This method returns a <timer_id> that is a pointer to a token which stores information about the event. This <timer_id> can be used to cancel the timer before it expires. Returns -1 on failure.

Implements ACE_Timer_Queue_T< TYPE, FUNCTOR, ACE_LOCK >.


Friends And Related Function Documentation

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
friend class ACE_Timer_Hash_Iterator_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET > [friend]
 

Iterator is a friend.


Member Data Documentation

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
size_t ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::earliest_position_ [private]
 

Index to the position with the earliest entry.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
HASH_ITERATOR* ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::iterator_ [private]
 

Iterator used to expire timers.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
size_t ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::size_ [private]
 

Keeps track of the size of the queue.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
BUCKET** ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::table_ [private]
 

Table of BUCKETS.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
ACE_Timer_Hash_Upcall<TYPE, FUNCTOR, ACE_LOCK> ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::table_functor_ [private]
 

Functor used for the table's timer queues.

template<class TYPE, class FUNCTOR, class ACE_LOCK, class BUCKET>
size_t ACE_Timer_Hash_T< TYPE, FUNCTOR, ACE_LOCK, BUCKET >::table_size_ [private]
 

Keeps track of the size of table_.


The documentation for this class was generated from the following files:
Generated on Wed Nov 23 15:50:59 2005 for ACE by  doxygen 1.4.5