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exception.h
1 
2 /***************************************************************************
3  * exception.h - basic exception
4  *
5  * Generated: Thu Feb 09 13:02:37 2006 (from FireVision)
6  * Copyright 2005-2006 Tim Niemueller [www.niemueller.de]
7  *
8  ****************************************************************************/
9 
10 /* This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version. A runtime exception applies to
14  * this software (see LICENSE.GPL_WRE file mentioned below for details).
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19  * GNU Library General Public License for more details.
20  *
21  * Read the full text in the LICENSE.GPL_WRE file in the doc directory.
22  */
23 
24 #ifndef __CORE_EXCEPTION_H_
25 #define __CORE_EXCEPTION_H_
26 
27 // needed for va_list
28 #include <cstdarg>
29 #include <exception>
30 
31 namespace fawkes {
32 
33 
34 class Mutex;
35 
36 class Exception : public std::exception {
37  public:
38 
39  Exception(const char *format, ...) throw();
40  Exception(int errno, const char *format, ...) throw();
41  Exception(const Exception &exc) throw();
42  virtual ~Exception() throw();
43 
44  virtual void raise();
45  void prepend(const char *format, ...) throw();
46  void append(const char *format, ...) throw();
47  void append_va(const char *format, va_list va) throw();
48  void append(const Exception &e) throw();
49  void print_trace() throw();
50  void print_backtrace() const throw();
51  char * generate_backtrace() const throw();
52 
53  int get_errno() throw();
54 
55  void set_type_id(const char *id);
56  const char * type_id() const;
57 
58  virtual const char* what() const throw();
59 
60  Exception& operator=(const Exception &exc) throw();
61 
62  protected:
63  /** Internal exception message list */
64  struct message_list_t {
65  message_list_t *next; /**< pointer to next element, NULL if last element */
66  char *msg; /**< pointer to message, may not be NULL, will be freed
67  * in dtor */
68  };
69 
70  public:
71  class iterator
72  {
73  friend class Exception;
74  private:
75  iterator(message_list_t *message_list);
76  public:
77  iterator(const iterator &i);
78  iterator();
79 
80  iterator & operator++ (); // prefix
81  iterator operator++ (int inc); // postfix
82 
83  bool operator== (const iterator & i) const;
84  bool operator!= (const iterator & i) const;
85 
86  const char * operator* () const;
87  iterator & operator= (const iterator & i);
88 
89  private:
90  message_list_t *mlist;
91  };
92 
93  iterator begin() throw();
94  iterator end() throw();
95 
96  protected:
97  Exception() throw();
98 
99  void append_nolock(const char *format, ...) throw();
100  void append_nolock_va(const char *format, va_list va) throw();
101  void append_nolock_nocopy(char *msg) throw();
102  void prepend_nolock_va(const char *format, va_list va) throw();
103  void copy_messages(const Exception &exc) throw();
104 
109 
110  int _errno;
111 
112  private:
113  const char *__type_id;
114 };
115 
116 
117 } // end namespace fawkes
118 
119 #endif