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-rw-r--r--ace/Future_Set.h146
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diff --git a/ace/Future_Set.h b/ace/Future_Set.h
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-// -*- C++ -*-
-
-//=============================================================================
-/**
- * @file Future_Set.h
- *
- * $Id$
- *
- * @author John Tucker <jtucker@infoglide.com>
- */
-//=============================================================================
-
-#ifndef ACE_FUTURE_SET_H
-#define ACE_FUTURE_SET_H
-#include /**/ "ace/pre.h"
-
-#include "ace/Thread.h"
-#include "ace/Message_Queue.h"
-#include "ace/Future.h"
-#include "ace/Hash_Map_Manager_T.h"
-#include "ace/Null_Mutex.h"
-
-#if !defined (ACE_LACKS_PRAGMA_ONCE)
-#pragma once
-#endif /* ACE_LACKS_PRAGMA_ONCE */
-
-#if defined (ACE_HAS_THREADS)
-
-ACE_BEGIN_VERSIONED_NAMESPACE_DECL
-
-/**
- * @class ACE_Future_Set
- *
- * @brief This class implements a mechanism which allows the values of
- * a collection of ACE_Future objects to be accessed by reader threads
- * as they become available. The caller(s) provide the ACE_Future_Set
- * (i.e. the observer...) with the collection of ACE_Future objects
- * (i.e. the subjects...) that are to be observed using the
- * the ACE_Future_Set::insert() method. The caller(s) may then iterate
- * over the collection in the order in which they become readable using
- * the ACE_Future_Set::next_readable() method.
- */
-template <class T>
-class ACE_Future_Set : public ACE_Future_Observer<T>
-{
-public:
- // = Initialization and termination methods.
-
- /// Constructor.
- ACE_Future_Set (ACE_Message_Queue<ACE_SYNCH> *future_notification_queue_ = 0);
-
- /// Destructor.
- ~ACE_Future_Set (void);
-
- /**
- * Return 1 if their are no ACE_Future objects left on its queue and
- * 0 otherwise.
- *
- * When an ACE_Future_Set has no ACE_Future>subjects to observe it is
- * empty. The ACE_Future_Set is in the empty state when either the caller(s)
- * have retrieved every readable ACE_Future subject assigned the
- * ACE_Future_Set via the ACE_Future_Set::next_readable() method,
- * or when the ACE_Future_Set has not been assigned any subjects.
- */
- int is_empty (void) const;
-
- /**
- * Enqueus the given ACE_Future into this objects queue when it is
- * readable.
- *
- * Returns 0 if the future is successfully inserted, 1 if the
- * future is already inserted, and -1 if failures occur.
- */
- int insert (ACE_Future<T> &future);
-
- /**
- * Wait up to <tv> time to get the <value>. Note that <tv> must be
- * specified in absolute time rather than relative time.); get the
- * next ACE_Future that is readable. If <tv> = 0, the will block
- * forever.
- *
- * If a readable future becomes available, then the input
- * ACE_Future object param will be assigned with it and 1 will
- * be returned. If the ACE_Future_Set is empty (i.e. see definition
- * of ACE_Future_Set::is_empty()), then 0 is returned.
- *
- * When a readable ACE_Future object is retrieved via the
- * ACE_Future_Set::next_readable() method, the ACE_Future_Set will
- * remove that ACE_Future object from its list of subjects.
- */
- int next_readable (ACE_Future<T> &result,
- ACE_Time_Value *tv = 0);
-
- /// Called by the ACE_Future subject in which we are subscribed to
- /// when its value is written to.
- virtual void update (const ACE_Future<T> &future);
-
- /// Declare the dynamic allocation hooks.
- ACE_ALLOC_HOOK_DECLARE;
-
-private:
- // = Disallow these operations.
- ACE_UNIMPLEMENTED_FUNC (void operator= (const ACE_Future_Set<T> &))
- ACE_UNIMPLEMENTED_FUNC (ACE_Future_Set (const ACE_Future_Set<T> &))
-
- typedef ACE_Future<T> FUTURE;
-
- typedef ACE_Future_Rep<T> FUTURE_REP;
-
- typedef ACE_Future_Holder<T> FUTURE_HOLDER;
-
- typedef ACE_Pointer_Hash<FUTURE_REP *> FUTURE_REP_HASH;
-
- typedef ACE_Equal_To<FUTURE_REP *> FUTURE_REP_COMPARE;
-
- typedef ACE_Hash_Map_Manager_Ex<FUTURE_REP *,
- FUTURE_HOLDER *,
- FUTURE_REP_HASH,
- FUTURE_REP_COMPARE,
- ACE_Null_Mutex> FUTURE_HASH_MAP;
-
- /// Map of <ACE_Futures>, subjects, which have not been written to by
- /// client's writer thread.
- FUTURE_HASH_MAP future_map_;
-
- /// Message queue for notifying the reader thread of <ACE_Futures> which
- /// have been written to by client's writer thread.
- ACE_Message_Queue<ACE_SYNCH> *future_notification_queue_;
-
- /// Keeps track of whether we need to delete the message queue.
- int delete_queue_;
-};
-
-ACE_END_VERSIONED_NAMESPACE_DECL
-
-#if defined (ACE_TEMPLATES_REQUIRE_SOURCE)
-#include "ace/Future_Set.cpp"
-#endif /* ACE_TEMPLATES_REQUIRE_SOURCE */
-
-#if defined (ACE_TEMPLATES_REQUIRE_PRAGMA)
-#pragma implementation ("Future_Set.cpp")
-#endif /* ACE_TEMPLATES_REQUIRE_PRAGMA */
-
-#endif /* ACE_HAS_THREADS */
-#include /**/ "ace/post.h"
-#endif /* ACE_FUTURE_SET_H */