Ejemplo n.º 1
0
ACE_TSS<TYPE>::ACE_TSS (TYPE *ts_obj)
  : once_ (false),
    key_ (ACE_OS::NULL_key)
{
  // If caller has passed us a non-NULL TYPE *, then we'll just use
  // this to initialize the thread-specific value.  Thus, subsequent
  // calls to operator->() will return this value.  This is useful
  // since it enables us to assign objects to thread-specific data
  // that have arbitrarily complex constructors!

  if (ts_obj != 0)
    {
      if (this->ts_init () == -1)
        {
          // Save/restore errno.
          ACE_Errno_Guard error (errno);
          // What should we do if this call fails?!
#if defined (ACE_HAS_WINCE)
          ::MessageBox (0,
                        ACE_TEXT ("ACE_Thread::keycreate() failed!"),
                        ACE_TEXT ("ACE_TSS::ACE_TSS"),
                        MB_OK);
#else
          ACE_OS::fprintf (stderr,
                           "ACE_Thread::keycreate() failed!");
#endif /* ACE_HAS_WINCE */
          return;
        }

#if defined (ACE_HAS_THR_C_DEST)
      // Encapsulate a ts_obj and it's destructor in an
      // ACE_TSS_Adapter.
      ACE_TSS_Adapter *tss_adapter = 0;
      ACE_NEW (tss_adapter,
               ACE_TSS_Adapter ((void *) ts_obj,
                                ACE_TSS<TYPE>::cleanup));

      // Put the adapter in thread specific storage
      if (ACE_Thread::setspecific (this->key_,
                                   (void *) tss_adapter) != 0)
        {
          delete tss_adapter;
          ACE_ERROR ((LM_ERROR,
                      ACE_TEXT ("%p\n"),
                      ACE_TEXT ("ACE_Thread::setspecific() failed!")));
        }
#else
      if (ACE_Thread::setspecific (this->key_,
                                   (void *) ts_obj) != 0)
        ACE_ERROR ((LM_ERROR,
                    ACE_TEXT ("%p\n"),
                    ACE_TEXT ("ACE_Thread::setspecific() failed!")));
#endif /* ACE_HAS_THR_C_DEST */
    }
}
Ejemplo n.º 2
0
template <class TYPE> TYPE *
ACE_TSS<TYPE>::ts_object (TYPE *new_ts_obj)
{
  // Note, we shouldn't hold the keylock at this point because
  // <ts_init> does it for us and we'll end up with deadlock
  // otherwise...
  if (this->once_ == 0)
    {
      // Create and initialize thread-specific ts_obj.
      if (this->ts_init () == -1)
        return 0;
    }

  // Ensure that we are serialized!
  ACE_GUARD_RETURN (ACE_Thread_Mutex, ace_mon, this->keylock_, 0);

  TYPE *ts_obj = 0;

#if defined (ACE_HAS_THR_C_DEST)
  ACE_TSS_Adapter *tss_adapter = 0;

  if (ACE_Thread::getspecific (this->key_,
                               (void **) &tss_adapter) == -1)
    return 0; // This should not happen!

  if (tss_adapter != 0)
    {
      ts_obj = (TYPE *) tss_adapter->ts_obj_;
      delete tss_adapter;       // don't need this anymore
    }

  ACE_NEW_RETURN (tss_adapter,
                  ACE_TSS_Adapter ((void *) new_ts_obj,
                                   ACE_TSS<TYPE>::cleanup),
                  0);

  if (ACE_Thread::setspecific (this->key_,
                               (void *) tss_adapter) == -1)
    {
      delete tss_adapter;
      return ts_obj; // This should not happen!
    }
#else
  if (ACE_Thread::getspecific (this->key_,
                               (void **) &ts_obj) == -1)
    return 0; // This should not happen!
  if (ACE_Thread::setspecific (this->key_,
                               (void *) new_ts_obj) == -1)
    return ts_obj; // This should not happen!
#endif /* ACE_HAS_THR_C_DEST */

  return ts_obj;
}
Ejemplo n.º 3
0
template <class TYPE> TYPE *
ACE_TSS<TYPE>::ts_object (TYPE *new_ts_obj)
{
  // Note, we shouldn't hold the keylock at this point because
  // <ts_init> does it for us and we'll end up with deadlock
  // otherwise...
  if (!this->once_)
    {
      // Create and initialize thread-specific ts_obj.
      if (this->ts_init () == -1)
        return 0;
    }

  TYPE *ts_obj = 0;

#if defined (ACE_HAS_THR_C_DEST)
  ACE_TSS_Adapter *tss_adapter = 0;

  void *temp = tss_adapter; // Need this temp to keep G++ from complaining.
  if (ACE_Thread::getspecific (this->key_, &temp) == -1)
    return 0; // This should not happen!
  tss_adapter = static_cast <ACE_TSS_Adapter *> (temp);

  if (tss_adapter != 0)
    {
      ts_obj = static_cast <TYPE *> (tss_adapter->ts_obj_);
      delete tss_adapter;       // don't need this anymore
    }

  ACE_NEW_RETURN (tss_adapter,
                  ACE_TSS_Adapter ((void *) new_ts_obj,
                                   ACE_TSS<TYPE>::cleanup),
                  0);

  if (ACE_Thread::setspecific (this->key_,
                               (void *) tss_adapter) == -1)
    {
      delete tss_adapter;
      return ts_obj; // This should not happen!
    }
#else
  void *temp = ts_obj; // Need this temp to keep G++ from complaining.
  if (ACE_Thread::getspecific (this->key_, &temp) == -1)
    return 0; // This should not happen!
  ts_obj = static_cast <TYPE *> (temp);
  if (ACE_Thread::setspecific (this->key_, (void *) new_ts_obj) == -1)
    return ts_obj; // This should not happen!
#endif /* ACE_HAS_THR_C_DEST */

  return ts_obj;
}
Ejemplo n.º 4
0
template <class TYPE> TYPE *
ACE_TSS<TYPE>::ts_object (TYPE *new_ts_obj)
{
  // Note, we shouldn't hold the keylock at this point because
  // <ts_init> does it for us and we'll end up with deadlock
  // otherwise...
  if (!this->once_)
    {
      // Create and initialize thread-specific ts_obj.
      if (this->ts_init () == -1)
        return 0;
    }

  TYPE *ts_obj = 0;

#if defined (ACE_HAS_THR_C_DEST)
  ACE_TSS_Adapter *tss_adapter = this->ts_value ();

  if (tss_adapter != 0)
    {
      ts_obj = static_cast <TYPE *> (tss_adapter->ts_obj_);
      // Don't delete tss_adapter yet. It can be double-deleted
      // in case setspecific below fails.
    }

  ACE_TSS_Adapter *new_tss_adapter = 0;
  ACE_NEW_RETURN (new_tss_adapter,
                  ACE_TSS_Adapter ((void *) new_ts_obj,
                                   ACE_TSS<TYPE>::cleanup),
                  0);

  if (this->ts_value (new_tss_adapter) == -1)
    {
      delete new_tss_adapter;
    }
  else
    {
      // Now it's fine to delete the old tss_adapter.
      delete tss_adapter;
    }
#else
  ts_obj = this->ts_value ();
  this->ts_value (new_ts_obj);
#endif /* ACE_HAS_THR_C_DEST */

  return ts_obj;
}
Ejemplo n.º 5
0
ACE_TSS_Read_Guard<ACE_LOCK>::ACE_TSS_Read_Guard (ACE_LOCK &lock, bool block)
{
  this->init_key ();
  Guard_Type *guard = 0;
  ACE_NEW (guard,
           Read_Guard_Type (lock, block));
#if defined (ACE_HAS_THR_C_DEST)
  ACE_TSS_Adapter *tss_adapter;
  ACE_NEW (tss_adapter,
           ACE_TSS_Adapter ((void *)guard,
                            ACE_TSS_Guard<ACE_LOCK>::cleanup));
  ACE_Thread::setspecific (this->key_,
                           (void *) tss_adapter);
#else
  ACE_Thread::setspecific (this->key_,
                           (void *) guard);
#endif /* ACE_HAS_THR_C_DEST */
}
Ejemplo n.º 6
0
ACE_TSS_Read_Guard<ACE_LOCK>::ACE_TSS_Read_Guard (ACE_LOCK &lock, int block)
{
// ACE_TRACE ("ACE_TSS_Read_Guard<ACE_LOCK>::ACE_TSS_Read_Guard");

  this->init_key ();
  ACE_Guard<ACE_LOCK> *guard;
  ACE_NEW (guard,
           ACE_Read_Guard<ACE_LOCK> (lock,
                                     block));
#if defined (ACE_HAS_THR_C_DEST)
  ACE_TSS_Adapter *tss_adapter;
  ACE_NEW (tss_adapter,
           ACE_TSS_Adapter ((void *)guard,
                            ACE_TSS_Guard<ACE_LOCK>::cleanup));
  ACE_Thread::setspecific (this->key_,
                           (void *) tss_adapter);
#else
  ACE_Thread::setspecific (this->key_,
                           (void *) guard);
#endif /* ACE_HAS_THR_C_DEST */
}
Ejemplo n.º 7
0
template <class TYPE> TYPE *
ACE_TSS<TYPE>::ts_get (void) const
{
  if (!this->once_)
    {
      // Create and initialize thread-specific ts_obj.
      if (const_cast< ACE_TSS < TYPE > * >(this)->ts_init () == -1)
        // Seriously wrong..
        return 0;
    }

  TYPE *ts_obj = 0;

#if defined (ACE_HAS_THR_C_DEST)
  ACE_TSS_Adapter *tss_adapter = this->ts_value ();
  ACE_TSS_Adapter *fake_tss_adapter = 0;

  // If tss_adapter is not 0 but its ts_obj_ is 0 then we still need to create
  // a proper ts_obj. That's the intent of this member function.
  if (tss_adapter != 0 && tss_adapter->ts_obj_ == 0)
    {
      fake_tss_adapter = tss_adapter;
      tss_adapter = 0;
    }

  // Check to see if this is the first time in for this thread.
  if (tss_adapter == 0)
#else
  ts_obj = this->ts_value ();

  // Check to see if this is the first time in for this thread.
  if (ts_obj == 0)
#endif /* ACE_HAS_THR_C_DEST */
    {
      // Allocate memory off the heap and store it in a pointer in
      // thread-specific storage (on the stack...).

      ts_obj = this->make_TSS_TYPE ();

      if (ts_obj == 0)
        return 0;

#if defined (ACE_HAS_THR_C_DEST)
      // Encapsulate a ts_obj and it's destructor in an
      // ACE_TSS_Adapter.
      ACE_NEW_RETURN (tss_adapter,
                      ACE_TSS_Adapter (ts_obj,
                                       ACE_TSS<TYPE>::cleanup), 0);

      // Put the adapter in thread specific storage
      if (this->ts_value (tss_adapter) == -1)
        {
          delete tss_adapter;
          delete ts_obj;
          return 0; // Major problems, this should *never* happen!
        }
#else
      // Store the dynamically allocated pointer in thread-specific
      // storage.
      if (this->ts_value (ts_obj) == -1)
        {
          delete ts_obj;
          return 0; // Major problems, this should *never* happen!
        }
#endif /* ACE_HAS_THR_C_DEST */
    }

#if defined (ACE_HAS_THR_C_DEST)
  // Delete the adapter that didn't actually have a real ts_obj.
  delete fake_tss_adapter;
  // Return the underlying ts object.
  return static_cast <TYPE *> (tss_adapter->ts_obj_);
#else
  return ts_obj;
#endif /* ACE_HAS_THR_C_DEST */
}
Ejemplo n.º 8
0
template <class TYPE> TYPE *
ACE_TSS<TYPE>::ts_get (void) const
{
  if (!this->once_)
    {
      // Create and initialize thread-specific ts_obj.
      if (const_cast< ACE_TSS < TYPE > * >(this)->ts_init () == -1)
        // Seriously wrong..
        return 0;
    }

  TYPE *ts_obj = 0;

#if defined (ACE_HAS_THR_C_DEST)
  ACE_TSS_Adapter *tss_adapter = 0;

  // Get the adapter from thread-specific storage
  void *temp = tss_adapter; // Need this temp to keep G++ from complaining.
  if (ACE_Thread::getspecific (this->key_, &temp) == -1)
    return 0; // This should not happen!
  tss_adapter = static_cast <ACE_TSS_Adapter *> (temp);

  // Check to see if this is the first time in for this thread.
  if (tss_adapter == 0)
#else
  // Get the ts_obj from thread-specific storage.  Note that no locks
  // are required here...
  void *temp = ts_obj; // Need this temp to keep G++ from complaining.
  if (ACE_Thread::getspecific (this->key_, &temp) == -1)
    return 0; // This should not happen!
  ts_obj = static_cast <TYPE *> (temp);

  // Check to see if this is the first time in for this thread.
  if (ts_obj == 0)
#endif /* ACE_HAS_THR_C_DEST */
    {
      // Allocate memory off the heap and store it in a pointer in
      // thread-specific storage (on the stack...).

      ts_obj = this->make_TSS_TYPE ();

      if (ts_obj == 0)
        return 0;

#if defined (ACE_HAS_THR_C_DEST)
      // Encapsulate a ts_obj and it's destructor in an
      // ACE_TSS_Adapter.
      ACE_NEW_RETURN (tss_adapter,
                      ACE_TSS_Adapter (ts_obj,
                                       ACE_TSS<TYPE>::cleanup), 0);

      // Put the adapter in thread specific storage
      if (ACE_Thread::setspecific (this->key_,
                                   (void *) tss_adapter) != 0)
        {
          delete tss_adapter;
          delete ts_obj;
          return 0; // Major problems, this should *never* happen!
        }
#else
      // Store the dynamically allocated pointer in thread-specific
      // storage.
      if (ACE_Thread::setspecific (this->key_,
                                   (void *) ts_obj) != 0)
        {
          delete ts_obj;
          return 0; // Major problems, this should *never* happen!
        }
#endif /* ACE_HAS_THR_C_DEST */
    }

#if defined (ACE_HAS_THR_C_DEST)
  // Return the underlying ts object.
  return static_cast <TYPE *> (tss_adapter->ts_obj_);
#else
  return ts_obj;
#endif /* ACE_HAS_THR_C_DEST */
}