machine/exception_point.hpp

   1 #ifndef RBX_EXCEPTION_POINT_HPP
   2 #define RBX_EXCEPTION_POINT_HPP
   3
   4 #include <setjmp.h>
   5
   6 #include "windows_compat.h"
   7
   8 namespace rubinius {
   9   class NativeMethodEnvironment;
  10
  11   class ExceptionPoint {
  12     bool jumped_to_;
  13     ExceptionPoint* previous_;
  14
  15   public:
  16     jmp_buf __jump_buffer;
  17     const char* file;
  18     int line;
  19
  20   public:
  21     ExceptionPoint(NativeMethodEnvironment* env);
  22
  23     bool jumped_to() const {
  24       return jumped_to_;
  25     }
  26
  27     void reset() {
  28       jumped_to_ = false;
  29     }
  30
  31     void return_to(NativeMethodEnvironment* env);
  32
  33     void unwind_to_previous(NativeMethodEnvironment* env) {
  34       previous_->return_to(env);
  35     }
  36
  37     void pop(NativeMethodEnvironment* env);
  38   };
  39 }
  40
  41 #define PLACE_EXCEPTION_POINT(ep) ep.file = __FILE__; ep.line = __LINE__; set_jump(ep.__jump_buffer)
  42
  43 #endif