Function msLayerClose

maplayer.c:205–231

** Closes resources used by a particular layer. */

** Closes resources used by a particular layer.
*/
void msLayerClose(layerObj *layer) 
{
  int i,j;

  /* no need for items once the layer is closed */
  msLayerFreeItemInfo(layer);
  if(layer->items) {
    msFreeCharArray(layer->items, layer->numitems);
    layer->items = NULL;
    layer->numitems = 0;
  }

  /* clear out items used as part of expressions (bug #2702) -- what about the layer filter? */
  freeExpressionTokens(&(layer->filter));
  freeExpressionTokens(&(layer->cluster.group));
  freeExpressionTokens(&(layer->cluster.filter));
  for(i=0; i<layer->numclasses; i++) {    
    freeExpressionTokens(&(layer->class[i]->expression));
    freeExpressionTokens(&(layer->class[i]->text));
    for(j=0; j<layer->class[i]->numstyles; j++)
      freeExpressionTokens(&(layer->class[i]->styles[j]->_geomtransform));
  }

  if (layer->vtable) {
    layer->vtable->LayerClose(layer);
  }
}

/*
** Retrieves a list of attributes available for this layer. Most sources also set the iteminfo array