OW_SelectEngine.cpp

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#include "OW_config.h"
#include "OW_SelectEngine.hpp"
#include "OW_Select.hpp"
#include "OW_ExceptionIds.hpp"

namespace OW_NAMESPACE
{

OW_DEFINE_EXCEPTION_WITH_ID(Select);
void
SelectEngine::addSelectableObject(const SelectableIFCRef& obj,
   const SelectableCallbackIFCRef& cb)
{
   m_selectableObjs.push_back(obj);
   m_callbacks.push_back(cb);
}
void
SelectEngine::go()
{
   m_stopFlag = false;
   do
   {
      SelectTypeArray selObjs;
      for (size_t i = 0; i < m_selectableObjs.size(); ++i)
      {
         selObjs.push_back(m_selectableObjs[i]->getSelectObj());
      }
      int selected = Select::select(selObjs);
      if (selected == Select::SELECT_ERROR)
      {
         OW_THROW(SelectException, "Select Error");
      }
      else if (selected == Select::SELECT_TIMEOUT
             || selected == Select::SELECT_INTERRUPTED)
      {
         continue;
      }
      else
      {
         m_callbacks[selected]->selected(m_selectableObjs[selected]);
      }
   } while (!m_stopFlag);
}
void
SelectEngine::stop()
{
   m_stopFlag = true;
}

SelectEngineStopper::SelectEngineStopper(SelectEngine& engine)
   : SelectableCallbackIFC()
   , m_engine(engine)
{
}

void 
SelectEngineStopper::doSelected(SelectableIFCRef& selectedObject)
{
   m_engine.stop();
}

} // end namespace OW_NAMESPACE

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