customuvar.hh

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/*
 * Copyright (C) 2010, 2012, Gostai S.A.S.
 *
 * This software is provided "as is" without warranty of any kind,
 * either expressed or implied, including but not limited to the
 * implied warranties of fitness for a particular purpose.
 *
 * See the LICENSE file for more information.
 */


#ifndef URBI_CUSTOMUVAR_HH
# define URBI_CUSTOMUVAR_HH

# include <urbi/uobject.hh>
# include <urbi/uvar.hh>

namespace urbi
{
  template<typename T> class CustomUVar: public UVar
  {
  public:
    CustomUVar();
    CustomUVar(const std::string&, impl::UContextImpl* = 0);
    CustomUVar(const std::string&, const std::string&, impl::UContextImpl* = 0);
    CustomUVar(UObject&, const std::string&, impl::UContextImpl* = 0);
    T& data();

    template<typename D> void operator=(D v);
    static T& data(UVar&);
    static void updateCache(UVar& v);
  private:
    T data_;
  };
}

#define UBindCacheVar(Obj, V, T)                                        \
  UBindVar(Obj, V);                                                     \
  ::urbi::createUCallback(*this, &V,                                    \
                          "var", &::urbi::CustomUVar<T>::updateCache,   \
                          V.get_name(), ctx_);

# include <urbi/customuvar.hxx>

#endif