ceph/src/boost/libs/python/include/boost/python/detail/exception_handler.hpp

   1 // Copyright David Abrahams 2002.
   2 // Distributed under the Boost Software License, Version 1.0. (See
   3 // accompanying file LICENSE_1_0.txt or copy at
   4 // http://www.boost.org/LICENSE_1_0.txt)
   5 #ifndef EXCEPTION_HANDLER_DWA2002810_HPP
   6 # define EXCEPTION_HANDLER_DWA2002810_HPP
   7
   8 # include <boost/python/detail/config.hpp>
   9 # include <boost/function/function0.hpp>
  10 # include <boost/function/function2.hpp>
  11
  12 namespace boost { namespace python { namespace detail {
  13
  14 struct BOOST_PYTHON_DECL_FORWARD exception_handler;
  15
  16 typedef function2<bool, exception_handler const&, function0<void> const&> handler_function;
  17
  18 struct BOOST_PYTHON_DECL exception_handler
  19 {
  20  private: // types
  21
  22  public:
  23     explicit exception_handler(handler_function const& impl);
  24
  25     inline bool handle(function0<void> const& f) const;
  26
  27     bool operator()(function0<void> const& f) const;
  28
  29     static exception_handler* chain;
  30
  31  private:
  32     static exception_handler* tail;
  33
  34     handler_function m_impl;
  35     exception_handler* m_next;
  36 };
  37
  38
  39 inline bool exception_handler::handle(function0<void> const& f) const
  40 {
  41     return this->m_impl(*this, f);
  42 }
  43
  44 BOOST_PYTHON_DECL void register_exception_handler(handler_function const& f);
  45
  46 }}} // namespace boost::python::detail
  47
  48 #endif // EXCEPTION_HANDLER_DWA2002810_HPP