summaryrefslogtreecommitdiff
path: root/ace/Future.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'ace/Future.cpp')
-rw-r--r--ace/Future.cpp350
1 files changed, 0 insertions, 350 deletions
diff --git a/ace/Future.cpp b/ace/Future.cpp
deleted file mode 100644
index 8e64cf09733..00000000000
--- a/ace/Future.cpp
+++ /dev/null
@@ -1,350 +0,0 @@
-// Future.cpp
-// $Id$
-
-#define ACE_BUILD_DLL
-
-#if !defined (ACE_FUTURE_CPP)
-#define ACE_FUTURE_CPP
-
-#include "ace/Future.h"
-
-#if defined (ACE_HAS_THREADS)
-
-// Dump the state of an object.
-
-template <class T> void
-ACE_Future_Rep<T>::dump (void) const
-{
- ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
- ACE_DEBUG ((LM_DEBUG,
- "ref_count_ = %d\n",
- this->ref_count_));
- ACE_DEBUG ((LM_INFO,"value_: \n"));
- if (this->value_)
- ACE_DEBUG ((LM_DEBUG," (NON-NULL)\n"));
- else
- ACE_DEBUG ((LM_DEBUG," (NULL)\n"));
- ACE_DEBUG ((LM_INFO,"value_ready_: \n"));
- this->value_ready_.dump ();
- ACE_DEBUG ((LM_INFO,"value_ready_mutex_: \n"));
- this->value_ready_mutex_.dump ();
- ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP));
-}
-
-template <class T>
-ACE_Future_Rep<T>::ACE_Future_Rep (void)
- : value_ (0),
- ref_count_ (0),
- value_ready_ (this->value_ready_mutex_)
-{
-}
-
-template <class T>
-ACE_Future_Rep<T>::~ACE_Future_Rep (void)
-{
- delete this->value_;
- this->value_ = 0;
-}
-
-template <class T> int
-ACE_Future_Rep<T>::ready (void)
-{
- return this->value_ != 0;
-}
-
-template <class T> int
-ACE_Future_Rep<T>::set (const T &r)
-{
- // If the value is already produced, ignore it...
- if (this->value_ == 0)
- {
- ACE_MT (ACE_GUARD_RETURN (ACE_Thread_Mutex, ace_mon, this->value_ready_mutex_, -1));
- // Otherwise, create a new result value. Note the use of the
- // Double-checked locking pattern to avoid multiple allocations.
-
- if (this->value_ == 0)
- ACE_NEW_RETURN (this->value_, T (r), -1);
-
- // Signal all the waiting threads.
- return this->value_ready_.broadcast ();
-
- // Destructor releases the lock.
- }
- return 0;
-}
-
-template <class T> int
-ACE_Future_Rep<T>::get (T &value, ACE_Time_Value *tv)
-{
- // If the value is already produced, return it.
- if (this->value_ == 0)
- {
- ACE_MT (ACE_GUARD_RETURN (ACE_Thread_Mutex, ace_mon, this->value_ready_mutex_, -1));
-
- // If the value is not yet defined we must block until the
- // producer writes to it.
-
- while (this->value_ == 0)
- {
- // Perform a timed wait.
- if (this->value_ready_.wait (tv) == -1)
- return -1;
- }
- // Destructor releases the lock.
- }
-
- value = *this->value_;
- return 0;
-}
-
-template <class T>
-ACE_Future_Rep<T>::operator T ()
-{
- // If the value is already produced, return it.
- if (this->value_ == 0)
- {
- // constructor of ace_mon acquires the mutex
- ACE_MT (ACE_GUARD_RETURN (ACE_Thread_Mutex, ace_mon, this->value_ready_mutex_, 0));
-
- // If the value is not yet defined we must block until the
- // producer writes to it.
-
- while (this->value_ == 0)
- {
- // wait forever
- if (this->value_ready_.wait () == -1)
- return 0;
- }
-
- // Destructor releases the mutex
-
- }
-
- return *this->value_;
-}
-
-
-template <class T>
-ACE_Future<T>::ACE_Future (void)
- : future_rep_ (0)
-{
-}
-
-template <class T>
-ACE_Future<T>::ACE_Future (const ACE_Future<T> &r)
-{
-
- // copy constructor:
- //
- // bind <this> to the same <ACE_Future_Rep> as <r>.
-
- // @@ not really clear if this is needed... after all this
- // ACE_Future is just being instantiated...
- ACE_MT (ACE_GUARD (ACE_Thread_Mutex, ace_mon, this->mutex_));
-
- // acquire the mutex on <r>. We have to make sure
- // that <r> does not delete its future_rep_...
-
- ACE_MT (ACE_GUARD (ACE_Thread_Mutex, r_mon, (ACE_Thread_Mutex &) r.mutex_));
-
- // Check if 'r' has already a ACE_Future_rep bound to it.
- if (r.future_rep_ == 0)
- this->future_rep_ = r.create_rep_i ();
- else
- // ACE_Future_rep exists already, we can just link to it.
- this->future_rep_ = r.future_rep_;
-
- this->future_rep_->ref_count_++;
-
-}
-
-template <class T>
-ACE_Future<T>::ACE_Future (const T &r)
-{
- ACE_DEBUG ((LM_DEBUG," (%t) funny constructor\n"));
- ACE_MT (ACE_GUARD (ACE_Thread_Mutex, ace_mon, this->mutex_));
- this->create_rep_i ()->set (r);
-}
-
-template <class T>
-ACE_Future<T>::~ACE_Future (void)
-{
- ACE_MT (ACE_GUARD (ACE_Thread_Mutex, ace_mon, this->mutex_));
-
- if (this->future_rep_)
- {
- this->future_rep_->ref_count_--;
-
- if (this->future_rep_->ref_count_ == 0)
- {
- delete this->future_rep_;
- this->future_rep_ = 0;
- }
- }
-
-}
-
-template <class T> int
-ACE_Future<T>::operator== (const ACE_Future<T> &r) const
-{
- return r.future_rep_ == this->future_rep_;
-}
-
-template <class T> int
-ACE_Future<T>::operator!= (const ACE_Future<T> &r) const
-{
- return r.future_rep_ != this->future_rep_;
-}
-
-template <class T> int
-ACE_Future<T>::cancel (const T &r)
-{
- ACE_MT (ACE_GUARD_RETURN (ACE_Thread_Mutex, ace_mon, this->mutex_, -1));
-
- // If this ACE_Future is already attached to a ACE_Future_Rep,
- // detach it (maybe delete the ACE_Future_Rep).
- if (this->future_rep_)
- {
- this->future_rep_->ref_count_--;
-
- if (this->future_rep_->ref_count_ == 0)
- delete this->future_rep_;
- }
-
- // Make a new ACE_Future_Rep and immediately assign
- // the new value to it.
- this->create_rep_i ();
- return this->future_rep_->set (r);
-}
-
-template <class T> int
-ACE_Future<T>::set (const T &r)
-{
- if (this->future_rep_)
- // Give the pointer to the result to the ACE_Future_Rep.
- return this->future_rep_->set (r);
- else
- // @@ Maybe this should return a special value to indicate that
- // there's no <ACE_Future_Rep> yet?
- return 0;
-}
-
-template <class T> ACE_Future_Rep<T> *
-ACE_Future<T>::create_rep_i (void) const
-{
- // Should only be called internally with locks held.
- ACE_NEW_RETURN (((ACE_Future<T> *) this)->future_rep_, ACE_Future_Rep<T>, 0);
- this->future_rep_->ref_count_ = 1;
- return this->future_rep_;
-}
-
-template <class T> int
-ACE_Future<T>::ready (void)
-{
- // We're ready if the ACE_Future_rep is ready...
- if (this->future_rep_)
- return this->future_rep_->ready ();
- else
- return 0;
-}
-
-template <class T> int
-ACE_Future<T>::get (T &value, ACE_Time_Value *tv)
-{
- ACE_MT (ACE_GUARD_RETURN (ACE_Thread_Mutex, ace_mon, this->mutex_, -1));
-
- if (this->future_rep_ == 0)
- // Oops, we have to create a ACE_Future_Rep first.
- this->create_rep_i ();
-
- // We return the ACE_Future_rep.
- return this->future_rep_->get (value, tv);
-}
-
-template <class T>
-ACE_Future<T>::operator T ()
-{
- // note that this will fail (and COREDUMP!)
- // if future_rep_ == 0 !
- //
- // but...
- // this is impossible unless somebody is so stupid to
- // try something like this:
- //
- // Future<T> futT;
- // T t;
- // t = futT;
-
- // perform type conversion on Future_Rep.
- return *future_rep_;
-}
-
-template <class T> void
-ACE_Future<T>::operator = (const ACE_Future<T> &r)
-{
- // assignment:
- //
- // bind <this> to the same <ACE_Future_Rep> as <r>.
-
- ACE_MT (ACE_GUARD (ACE_Thread_Mutex, ace_mon, this->mutex_));
-
- // if there is already a <ACE_Future_Rep> we have
- // to disconnect from it...
- if (this->future_rep_)
- {
- // Disconnect from the <ACE_Future_Rep>.
- this->future_rep_->ref_count_--;
-
- if (this->future_rep_->ref_count_ == 0)
- delete this->future_rep_;
- }
-
- // Acquire the mutex on <r>. We have to make sure
- // that <r> does not delete it's future_rep_...
-
- ACE_MT (ACE_GUARD (ACE_Thread_Mutex, r_mon, (ACE_Thread_Mutex &) r.mutex_));
-
- // Check if 'r' has already a ACE_Future_rep bound to it.
- if (r.future_rep_ == 0)
- this->future_rep_ = r.create_rep_i ();
- else
- // ACE_Future_rep exists already, we can just link to it.
- this->future_rep_ = r.future_rep_;
-
- this->future_rep_->ref_count_++;
-}
-
-template <class T> void
-ACE_Future<T>::dump (void) const
-{
- ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
-
- if (this->future_rep_)
- this->future_rep_->dump ();
-
- this->mutex_.dump ();
- ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP));
-}
-
-template <class T> void *
-ACE_Future<T>::operator new (size_t)
-{
- return 0;
-}
-
-template <class T> void
-ACE_Future<T>::operator delete (void *)
-{
-}
-
-template <class T> void
-ACE_Future<T>::operator &()
-{
-}
-
-#if defined (ACE_TEMPLATES_REQUIRE_SPECIALIZATION)
-template class ACE_Atomic_Op<ACE_Thread_Mutex, int>;
-#endif /* ACE_TEMPLATES_REQUIRE_SPECIALIZATION */
-
-#endif /* ACE_HAS_THREADS */
-#endif /* ACE_FUTURE_CPP */
View Lorry Controller Status