core/library/processes/os_event.h

   1 #ifndef OS_EVENT_CLASS
   2 #define OS_EVENT_CLASS
   3
   4 /*****************************************************************************\
   5 *                                                                             *
   6 *  Name   : OS_event                                                          *
   7 *  Author : Chris Koeritz                                                     *
   8 *                                                                             *
   9 *******************************************************************************
  10 * Copyright (c) 1995-$now By Author.  This program is free software; you can  *
  11 * redistribute it and/or modify it under the terms of the GNU General Public  *
  12 * License as published by the Free Software Foundation; either version 2 of   *
  13 * the License or (at your option) any later version.  This is online at:      *
  14 *     http://www.fsf.org/copyleft/gpl.html                                    *
  15 * Please send any updates to: fred@gruntose.com                               *
  16 \*****************************************************************************/
  17
  18 #include "letter.h"
  19
  20 #include <basis/astring.h>
  21 #include <basis/contracts.h>
  22
  23 namespace processes {
  24
  25 // forward.
  26 class post_office;
  27
  28 //! Models an OS-level event so we can represent activities occurring there.
  29
  30 class OS_event : public letter, public virtual basis::text_formable
  31 {
  32 public:
  33   basis::un_int _message;
  34   basis::un_int _parm1;
  35   basis::un_int _parm2;
  36
  37   DEFINE_CLASS_NAME("OS_event");
  38
  39   OS_event(int event_type, basis::un_int message, basis::un_int parm1, basis::un_int parm2)
  40   : letter(event_type), _message(message), _parm1(parm1), _parm2(parm2) {}
  41
  42   virtual void text_form(basis::base_string &fill) const {
  43     fill.assign(text_form());
  44   }
  45   basis::astring text_form() const {
  46     return basis::a_sprintf("os_event: msg=%d parm1=%d parm2=%d", _message, _parm1, _parm2);
  47   }
  48 };
  49
  50 } //namespace.
  51
  52 #endif
  53