Ejemplos de s_page_weak_unref en C++ (Cpp)

Ejemplo n.º 1

/*! \brief Free a gEDA smob.
 * \par Function Description
 * Finalizes a gEDA smob for deletion, removing the weak reference.
 *
 * Used internally to Guile.
 */
static size_t
smob_free (SCM smob)
{
  void *data;

  /* If the weak reference has already been cleared, do nothing */
  if (!EDASCM_SMOB_VALIDP(smob)) return 0;

  data = (void *) SCM_SMOB_DATA (smob);

  /* Otherwise, clear the weak reference */
  switch (EDASCM_SMOB_TYPE (smob)) {
  case GEDA_SMOB_TOPLEVEL:
    s_toplevel_weak_unref ((TOPLEVEL *) data, smob_weakref_notify, smob);
    break;
  case GEDA_SMOB_PAGE:
    s_page_weak_unref ((PAGE *) data, smob_weakref_notify, smob);
    break;
  case GEDA_SMOB_OBJECT:
    /* See edascm_from_object() for an explanation of why OBJECT
     * smobs store a TOPLEVEL in the second data word */
    s_object_weak_unref ((OBJECT *) data, smob_weakref_notify, smob);
    s_toplevel_weak_unref ((TOPLEVEL *) SCM_SMOB_DATA_2 (smob),
                           smob_weakref2_notify, smob);
    break;
  default:
    /* This should REALLY definitely never be run */
    g_critical ("%s: received bad smob flags.", __FUNCTION__);
  }

  /* If the smob is marked as garbage-collectable, destroy its
   * contents.
   *
   * Because PAGEs and TOPLEVELs should never be garbage collected,
   * emit critical warnings if the GC tries to free them.
   */
  if (EDASCM_SMOB_GCP (smob)) {
    switch (EDASCM_SMOB_TYPE (smob)) {
    case GEDA_SMOB_TOPLEVEL:
      g_critical ("%s: Blocked garbage-collection of TOPLEVEL %p",
                 __FUNCTION__, data);
      break;
    case GEDA_SMOB_PAGE:
      g_critical ("%s: Blocked garbage-collection of PAGE %p",
                 __FUNCTION__, data);
      break;
    case GEDA_SMOB_OBJECT:
      /* See edascm_from_object() for an explanation of why OBJECT
       * smobs store a TOPLEVEL in the second data word */
      s_delete_object ((TOPLEVEL *) SCM_SMOB_DATA_2 (smob), (OBJECT *) data);
      break;
    default:
      /* This should REALLY definitely never be run */
      g_critical ("%s: received bad smob flags.", __FUNCTION__);
    }
  }
  return 0;
}

Ejemplo n.º 2

Archivo: scheme_smob.c Proyecto: gareth8118/geda-gaf

/*! \brief Free a gEDA smob.
 * \par Function Description
 * Finalizes a gEDA smob for deletion, removing the weak reference.
 *
 * Used internally to Guile.
 */
static size_t
smob_free (SCM smob)
{
  void *data;

  /* If the weak reference has already been cleared, do nothing */
  if (!EDASCM_SMOB_VALIDP(smob)) return 0;

  data = (void *) SCM_SMOB_DATA (smob);

  /* If the smob is being finalized, it must not be in the cache! */
  g_warn_if_fail (!smob_cache_contains (data));

  /* Otherwise, clear the weak reference */
  switch (EDASCM_SMOB_TYPE (smob)) {
  case GEDA_SMOB_TOPLEVEL:
    s_toplevel_weak_unref ((TOPLEVEL *) data, smob_weakref_notify,
                           unpack_as_pointer (smob));
    break;
  case GEDA_SMOB_PAGE:
    s_page_weak_unref ((PAGE *) data, smob_weakref_notify,
                       unpack_as_pointer (smob));
    break;
  case GEDA_SMOB_OBJECT:
    /* See edascm_from_object() for an explanation of why OBJECT
     * smobs store a TOPLEVEL in the second data word */
    s_object_weak_unref ((OBJECT *) data, smob_weakref2_notify,
                         unpack_as_pointer (smob));
    break;
  case GEDA_SMOB_CONFIG:
    g_object_unref (G_OBJECT (data));
    break;
  case GEDA_SMOB_CLOSURE:
    break;
  default:
    /* This should REALLY definitely never be run */
    g_critical ("%s: received bad smob flags.", __FUNCTION__);
  }

  /* If the smob is marked as garbage-collectable, destroy its
   * contents.
   *
   * Because PAGEs and TOPLEVELs should never be garbage collected,
   * emit critical warnings if the GC tries to free them.
   */
  if (EDASCM_SMOB_GCP (smob)) {
    switch (EDASCM_SMOB_TYPE (smob)) {
    case GEDA_SMOB_TOPLEVEL:
      g_critical ("%s: Blocked garbage-collection of TOPLEVEL %p",
                 __FUNCTION__, data);
      break;
    case GEDA_SMOB_PAGE:
      g_critical ("%s: Blocked garbage-collection of PAGE %p",
                 __FUNCTION__, data);
      break;
    case GEDA_SMOB_OBJECT:
      /* See edascm_from_object() for an explanation of why OBJECT
       * smobs store a TOPLEVEL in the second data word */
      s_delete_object ((TOPLEVEL *) SCM_SMOB_DATA_2 (smob), (OBJECT *) data);
      break;
    case GEDA_SMOB_CONFIG:
      /* These are reference counted, so the structure will have
       * already been destroyed above if appropriate. */
      break;
    case GEDA_SMOB_CLOSURE:
      break;
    default:
      /* This should REALLY definitely never be run */
      g_critical ("%s: received bad smob flags.", __FUNCTION__);
    }
  }
  return 0;
}