1 /* Inferior iterators and ranges for GDB, the GNU debugger.
3 Copyright (C) 2018-2019 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 #ifndef INFERIOR_ITER_H
21 #define INFERIOR_ITER_H
23 #include "gdbsupport/filtered-iterator.h"
24 #include "gdbsupport/safe-iterator.h"
26 /* A forward iterator that iterates over all inferiors. */
28 class all_inferiors_iterator
31 typedef all_inferiors_iterator self_type;
32 typedef struct inferior *value_type;
33 typedef struct inferior *&reference;
34 typedef struct inferior **pointer;
35 typedef std::forward_iterator_tag iterator_category;
36 typedef int difference_type;
38 /* Create an iterator pointing at HEAD. */
39 explicit all_inferiors_iterator (inferior *head)
43 /* Create a one-past-end iterator. */
44 all_inferiors_iterator ()
48 all_inferiors_iterator &operator++ ()
54 inferior *operator* () const
57 bool operator!= (const all_inferiors_iterator &other) const
58 { return m_inf != other.m_inf; }
64 /* Filter for filtered_iterator. Filters out exited inferiors. */
66 struct exited_inferior_filter
68 bool operator() (inferior *inf)
74 /* Iterate over all non-exited inferiors. */
76 using all_non_exited_inferiors_iterator
77 = filtered_iterator<all_inferiors_iterator, exited_inferior_filter>;
79 /* A range adapter that makes it possible to iterate over all
80 inferiors with range-for. */
81 struct all_inferiors_range
83 all_inferiors_iterator begin () const
84 { return all_inferiors_iterator (inferior_list); }
85 all_inferiors_iterator end () const
86 { return all_inferiors_iterator (); }
89 /* Iterate over all inferiors, safely. */
91 using all_inferiors_safe_iterator
92 = basic_safe_iterator<all_inferiors_iterator>;
94 /* A range adapter that makes it possible to iterate over all
95 inferiors with range-for "safely". I.e., it is safe to delete the
96 currently-iterated inferior. */
98 struct all_inferiors_safe_range
100 all_inferiors_safe_iterator begin () const
101 { return all_inferiors_safe_iterator (inferior_list); }
102 all_inferiors_safe_iterator end () const
103 { return all_inferiors_safe_iterator (); }
106 /* A range adapter that makes it possible to iterate over all
107 non-exited inferiors with range-for. */
109 struct all_non_exited_inferiors_range
111 all_non_exited_inferiors_iterator begin () const
112 { return all_non_exited_inferiors_iterator (inferior_list); }
113 all_non_exited_inferiors_iterator end () const
114 { return all_non_exited_inferiors_iterator (); }
117 #endif /* !defined (INFERIOR_ITER_H) */