Repo restructuring

1 files changed, 0 insertions, 299 deletions

diff --git a/TAO/tao/Leader_Follower.h b/TAO/tao/Leader_Follower.h
deleted file mode 100644
index 46fa3c312a7..00000000000
--- a/TAO/tao/Leader_Follower.h
+++ /dev/null
@@ -1,299 +0,0 @@
-// -*- C++ -*-
-
-//=============================================================================
-/**
- *  @file   Leader_Follower.h
- *
- *  $Id$
- *
- *  @author Carlos O'Ryan (coryan@cs.wustl.edu)
- */
-//=============================================================================
-
-
-#ifndef TAO_LEADER_FOLLOWER_H
-#define TAO_LEADER_FOLLOWER_H
-
-#include /**/ "ace/pre.h"
-#include "ace/os_include/os_errno.h"
-
-#if !defined (ACE_LACKS_PRAGMA_ONCE)
-# pragma once
-#endif /* ACE_LACKS_PRAGMA_ONCE */
-
-#include "tao/New_Leader_Generator.h"
-#include "tao/LF_Follower.h"
-#include "ace/Reverse_Lock_T.h"
-#include "ace/Intrusive_List.h"
-#include "ace/Intrusive_List_Node.h"
-#include "ace/OS_NS_Thread.h"
-
-ACE_BEGIN_VERSIONED_NAMESPACE_DECL
-class ACE_Reactor;
-ACE_END_VERSIONED_NAMESPACE_DECL
-
-TAO_BEGIN_VERSIONED_NAMESPACE_DECL
-
-class TAO_LF_Event;
-class TAO_Transport;
-class TAO_ORB_Core;
-class TAO_ORB_Core_TSS_Resources;
-
-/**
- * @class TAO_Leader_Follower
- *
- * @brief TAO_Leader_Follower
- *
- * TAO_Leader_Follower
- */
-class TAO_Export TAO_Leader_Follower
-{
-public:
-  /// Constructor
-  TAO_Leader_Follower (TAO_ORB_Core *orb_core,
-                       TAO_New_Leader_Generator *new_leader_generator = 0);
-
-  /// Destructor
-  ~TAO_Leader_Follower (void);
-
-  /// The current thread has become a server thread (i.e. called
-  /// ORB::run), update any flags and counters.
-  int set_event_loop_thread (ACE_Time_Value *max_wait_time);
-
-  /// The current thread is not a server thread anymore, reset any
-  /// flags and counters.
-  void reset_event_loop_thread (void);
-
-  /// This thread is going to perform an upcall, it will no longer be
-  /// an event loop thread.
-  void set_upcall_thread (void);
-
-  /// Is there any thread running as a leader?
-  int leader_available (void) const;
-
-  /// A server thread is making a request.
-  void set_client_thread (void);
-
-  /// A server thread has finished is making a request.
-  void reset_client_thread (void);
-
-  /// Wait on the Leader/Followers loop until one event happens.
-  /**
-   * @param event The event we wait for, the loop iterates until the
-   * event is sucessful, or it fails due to timeout, and error or a
-   * connection closed.
-   * @param transport The transport attached to the event
-   * @param max_wait_time Limit the time spent on the loop
-   * @param return Returns -1 on error, 0 or non-zero value
-   *  otherwise.
-   *
-   * @todo Document this better, split the Follower code to the
-   * TAO_LF_Follower class, we probably don't need the transport
-   * object.
-   */
-  int wait_for_event (TAO_LF_Event *event,
-                      TAO_Transport *transport,
-                      ACE_Time_Value *max_wait_time);
-
-  /// The current thread has become the leader thread in the
-  /// client side leader-follower set.
-  void set_client_leader_thread (void) ;
-
-  /// The current thread is no longer the leader thread in the client
-  /// side leader-follower set.
-  void reset_client_leader_thread (void) ;
-
-  /// sets the thread ID of the leader thread in the leader-follower
-  /// model
-  void set_client_leader_thread (ACE_thread_t thread_ID);
-
-  /// checks if we are a leader thread
-  int is_client_leader_thread (void) const;
-
-  /**
-   * A leader thread is relinquishing its role, unless there are more
-   * leader threads running pick up a follower (if there is any) to
-   * play the leader role.
-   */
-  int elect_new_leader (void);
-
-  /** @name Follower creation/destructions
-   *
-   * The Leader/Followers set acts as a factory for the Follower
-   * objects.  Followers are used to represent a thread blocked
-   * waiting in the Follower set.
-   *
-   * The Leader/Followers abstraction keeps a list of the waiting
-   * followers, so it can wake up one when the leader thread stops
-   * handling events.
-   *
-   * For performance reasons the Leader/Followers set uses a pool (or
-   * free-list) to keep Follower objects unattached to any thread.  It
-   * could be tempting to use TSS to keep such followers, after all a
-   * thread can only need one such Follower object, however, that does
-   * not work with multiple Leader/Followers sets, consult this bug
-   * report for more details:
-   *
-   * http://ace.cs.wustl.edu/bugzilla/show_bug.cgi?id=296
-   *
-   */
-  //@{
-  /// Allocate a new follower to the caller.
-  TAO_LF_Follower *allocate_follower (void);
-
-  /// The caller has finished using a follower.
-  void release_follower (TAO_LF_Follower *);
-  //@}
-
-  /** @name Follower Set Operations
-   *
-   */
-  //@{
-  /// Add a new follower to the set
-  void add_follower (TAO_LF_Follower *follower);
-
-  /// Removes a follower from the leader-follower set
-  void remove_follower (TAO_LF_Follower *follower);
-
-  /// Checks if there are any followers available
-  /**
-   * @return 1 if there follower set is not empty
-   */
-  int follower_available (void) const;
-
-  //@}
-
-  /// Get a reference to the underlying mutex
-  TAO_SYNCH_MUTEX &lock (void);
-
-  /// Provide a pre-initialized reverse lock for the Leader/Followers
-  /// set.
-  /**
-   * The Leader/Followers set mutex must be release during some long
-   * running operations.  This helper class simplifies the process of
-   * releasing and reacquiring said mutex.
-   */
-  ACE_Reverse_Lock<TAO_SYNCH_MUTEX> &reverse_lock (void);
-
-  /// Check if there are any client threads running
-  int has_clients (void) const;
-
-  /// Accesor to the reactor
-  ACE_Reactor *reactor (void);
-
-  /// Called when we are out of leaders.
-  void no_leaders_available (void);
-
-private:
-  /// Shortcut to obtain the TSS resources of the orb core.
-  TAO_ORB_Core_TSS_Resources *get_tss_resources (void) const;
-
-  /// Wait for the client leader to complete.
-  int wait_for_client_leader_to_complete (ACE_Time_Value *max_wait_time);
-
-  /**
-   * Implement the reset_event_loop_thread() method, once the TSS
-   * resources have been acquired.
-   * Also used in the set_upcall_thread.
-   */
-  void reset_event_loop_thread_i (TAO_ORB_Core_TSS_Resources *tss);
-
-  /** @name Follower Set Operations
-   *
-   */
-  //@{
-  /// Remote a follower from the Followers set and promote it to the
-  /// leader role.
-  /**
-   * This is a helper routine for elect_new_leader(), after verifying
-   * that all the pre-conditions are satisfied the Follower set is
-   * changed and the promoted Follower is signaled.
-   */
-  int elect_new_leader_i (void);
-
-  //@}
-
-private:
-  /// The orb core
-  TAO_ORB_Core *orb_core_;
-
-  /// To synchronize access to the members.
-  TAO_SYNCH_MUTEX lock_;
-
-  /// do protect the access to the following three members
-  ACE_Reverse_Lock<TAO_SYNCH_MUTEX> reverse_lock_;
-
-  /// Implement the Leader/Followers set using an intrusive list
-  typedef ACE_Intrusive_List<TAO_LF_Follower> Follower_Set;
-  Follower_Set follower_set_;
-
-  /// Use a free list to allocate and release Follower objects
-  Follower_Set follower_free_list_;
-
-  /**
-   * Count the number of active leaders.
-   * There could be many leaders in the thread pool (i.e. calling
-   * ORB::run), and the same leader could show up multiple times as it
-   * receives nested upcalls and sends more requests.
-   */
-  int leaders_;
-
-  /// Count the number of active clients, this is useful to know when
-  /// to deactivate the reactor
-  int clients_;
-
-  /// The reactor
-  ACE_Reactor *reactor_;
-
-  /// Is a client thread the current leader?
-  int client_thread_is_leader_;
-
-  /// Are server threads waiting for the client leader to complete?
-  int event_loop_threads_waiting_;
-
-  /// Condition variable for server threads waiting for the client
-  /// leader to complete.
-  TAO_SYNCH_CONDITION event_loop_threads_condition_;
-
-  /// Leader/Follower class uses this method to notify the system that
-  /// we are out of leaders.
-  TAO_New_Leader_Generator *new_leader_generator_;
-};
-
-class TAO_Export TAO_LF_Client_Thread_Helper
-{
-public:
-  /// Constructor
-  TAO_LF_Client_Thread_Helper (TAO_Leader_Follower &leader_follower);
-
-  /// Destructor
-  ~TAO_LF_Client_Thread_Helper (void);
-
-private:
-  /// Reference to leader/followers object.
-  TAO_Leader_Follower &leader_follower_;
-};
-
-class TAO_Export TAO_LF_Client_Leader_Thread_Helper
-{
-public:
-  /// Constructor
-  TAO_LF_Client_Leader_Thread_Helper (TAO_Leader_Follower &leader_follower);
-
-  /// Destructor
-  ~TAO_LF_Client_Leader_Thread_Helper (void);
-
-private:
-  /// Reference to leader/followers object.
-  TAO_Leader_Follower &leader_follower_;
-};
-
-TAO_END_VERSIONED_NAMESPACE_DECL
-
-#if defined (__ACE_INLINE__)
-# include "tao/Leader_Follower.i"
-#endif /* __ACE_INLINE__ */
-
-#include /**/ "ace/post.h"
-
-#endif /* TAO_LEADER_FOLLOWER_H */