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TAO_LF_Strategy_Complete Class Reference

A concrete TAO_LF_Strategy for ORB configurations that use the Leader/Followers event loop. More...

#include <LF_Strategy_Complete.h>

Inheritance diagram for TAO_LF_Strategy_Complete:

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Collaboration diagram for TAO_LF_Strategy_Complete:

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List of all members.

Public Member Functions

Virtual Methods
Please check the documentation in TAO_LF_Strategy

virtual ~TAO_LF_Strategy_Complete (void)
virtual void set_upcall_thread (TAO_Leader_Follower &)
 The current thread will handle an upcall.

virtual int set_event_loop_thread (ACE_Time_Value *max_wait_time, TAO_Leader_Follower &)
 The current thread is entering the reactor event loop.

virtual void reset_event_loop_thread (int call_reset, TAO_Leader_Follower &)
 The current thread is leaving the event loop.

Detailed Description

A concrete TAO_LF_Strategy for ORB configurations that use the Leader/Followers event loop.

Definition at line 34 of file LF_Strategy_Complete.h.

Constructor & Destructor Documentation

TAO_BEGIN_VERSIONED_NAMESPACE_DECL TAO_LF_Strategy_Complete::~TAO_LF_Strategy_Complete (  void   )  [virtual]
 

Definition at line 15 of file LF_Strategy_Complete.cpp. 

00016 {
00017 }

Member Function Documentation

void TAO_LF_Strategy_Complete::reset_event_loop_thread (  int  call_reset,
TAO_Leader_Follower & 
)  [virtual]
 

The current thread is leaving the event loop.

When the thread leaves the event loop a new leader must be elected.

Implements TAO_LF_Strategy.

Definition at line 35 of file LF_Strategy_Complete.cpp.

References ACE_ERROR, ACE_GUARD, ACE_TEXT, TAO_Leader_Follower::elect_new_leader(), LM_ERROR, TAO_Leader_Follower::lock(), TAO_Leader_Follower::reset_event_loop_thread(), and TAO_SYNCH_MUTEX. 

00037 {
00038   ACE_GUARD (TAO_SYNCH_MUTEX, ace_mon, lf.lock ());
00039 
00040   if (call_reset)
00041     lf.reset_event_loop_thread ();
00042 
00043   int const result = lf.elect_new_leader ();
00044 
00045   if (result == -1)
00046     ACE_ERROR ((LM_ERROR,
00047                 ACE_TEXT ("TAO (%P|%t) Failed to wake up ")
00048                 ACE_TEXT ("a follower thread\n")));
00049 }

int TAO_LF_Strategy_Complete::set_event_loop_thread (  ACE_Time_Value *  max_wait_time,
TAO_Leader_Follower & 
)  [virtual]
 

The current thread is entering the reactor event loop.

Threads that block in the reactor event loop become "server" threads for the Leader/Follower set. They must be flagged specially because they do not wait for one specific event, but for any event whatsoever.

Implements TAO_LF_Strategy.

Definition at line 26 of file LF_Strategy_Complete.cpp.

References ACE_GUARD_RETURN, TAO_Leader_Follower::lock(), TAO_Leader_Follower::set_event_loop_thread(), and TAO_SYNCH_MUTEX. 

00028 {
00029   ACE_GUARD_RETURN (TAO_SYNCH_MUTEX, ace_mon, lf.lock (), -1);
00030 
00031   return lf.set_event_loop_thread (tv);
00032 }

void TAO_LF_Strategy_Complete::set_upcall_thread (  TAO_Leader_Follower &   )  [virtual]
 

The current thread will handle an upcall.

Threads that handle requests can block for long periods of time, causing deadlocks if they don't elect a new leader before starting the upcall the system can become non-responsive or dead-lock.

Implements TAO_LF_Strategy.

Definition at line 20 of file LF_Strategy_Complete.cpp.

References TAO_Leader_Follower::set_upcall_thread(). 

00021 {
00022   lf.set_upcall_thread ();
00023 }

The documentation for this class was generated from the following files:
Generated on Thu Nov 9 12:22:23 2006 for TAO by doxygen 1.3.6