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TAO_LF_Follower Class Reference

Represent a thread blocked, as a follower, in the Leader/Followers set. More...

#include <LF_Follower.h>

Inheritance diagram for TAO_LF_Follower:

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Collaboration diagram for TAO_LF_Follower:

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List of all members.

Public Member Functions

 TAO_LF_Follower (TAO_Leader_Follower &leader_follower)
 Constructor.

 ~TAO_LF_Follower (void)
 Destructor.

TAO_Leader_Follower & leader_follower (void)
 Access the leader follower that owns this follower.

int wait (ACE_Time_Value *tv)
 Wait until on the underlying condition variable.

int signal (void)
 Signal the underlying condition variable.


Private Attributes

TAO_Leader_Follower & leader_follower_
 The Leader/Follower set this Follower belongs to.

ACE_SYNCH_CONDITION condition_
 Condition variable used to.

Detailed Description

Represent a thread blocked, as a follower, in the Leader/Followers set.

Todo:
Currently this class offers little abstraction, the follower loop should be implemented by this class.

Definition at line 45 of file LF_Follower.h.

Constructor & Destructor Documentation

TAO_BEGIN_VERSIONED_NAMESPACE_DECL TAO_LF_Follower::TAO_LF_Follower (  TAO_Leader_Follower &  leader_follower  ) 
 

Constructor.

Definition at line 16 of file LF_Follower.cpp. 

00017   : leader_follower_ (leader_follower)
00018   , condition_ (leader_follower.lock ())
00019 {
00020 }

TAO_LF_Follower::~TAO_LF_Follower (  void   ) 
 

Destructor.

Definition at line 22 of file LF_Follower.cpp. 

00023 {
00024 }

Member Function Documentation

TAO_BEGIN_VERSIONED_NAMESPACE_DECL ACE_INLINE TAO_Leader_Follower & TAO_LF_Follower::leader_follower (  void   ) 
 

Access the leader follower that owns this follower.

Definition at line 8 of file LF_Follower.inl. 

00009 {
00010   return this->leader_follower_;
00011 }

int TAO_LF_Follower::signal (  void   ) 
 

Signal the underlying condition variable.

Definition at line 27 of file LF_Follower.cpp.

References TAO_Leader_Follower::remove_follower().

Referenced by TAO_Leader_Follower::elect_new_leader_i(), and TAO_LF_Event::state_changed(). 

00028 {
00029   // We *must* remove ourselves from the list of followers, otherwise
00030   // we could get signalled twice: to wake up as a follower and as the
00031   // next leader.
00032   // The follower may not be there if the reply is received while
00033   // the consumer is not yet waiting for it (i.e. it send the
00034   // request but has not blocked to receive the reply yet).
00035   // Ignore errors.
00036   (void) this->leader_follower_.remove_follower (this);
00037 
00038   return this->condition_.signal ();
00039 }

ACE_INLINE int TAO_LF_Follower::wait (  ACE_Time_Value *  tv  ) 
 

Wait until on the underlying condition variable.

Definition at line 14 of file LF_Follower.inl. 

00015 {
00016   return this->condition_.wait (tv);
00017 }

Member Data Documentation

ACE_SYNCH_CONDITION TAO_LF_Follower::condition_ [private]
 

Condition variable used to.

Definition at line 69 of file LF_Follower.h.

TAO_Leader_Follower& TAO_LF_Follower::leader_follower_ [private]
 

The Leader/Follower set this Follower belongs to.

Definition at line 66 of file LF_Follower.h.

The documentation for this class was generated from the following files:
Generated on Thu Nov 9 12:22:12 2006 for TAO by doxygen 1.3.6