projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 08036331 PA |
1 | /* Inferior iterators and ranges for GDB, the GNU debugger. |
| 2 | ||
| 42a4f53d | 3 | Copyright (C) 2018-2019 Free Software Foundation, Inc. |
| 08036331 PA |
4 | |
| 5 | This file is part of GDB. | |
| 6 | ||
| 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. | |
| 11 | ||
| 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. | |
| 16 | ||
| 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/>. */ | |
| 19 | ||
| 20 | #ifndef INFERIOR_ITER_H | |
| 21 | #define INFERIOR_ITER_H | |
| 22 | ||
| 268a13a5 TT |
23 | #include "gdbsupport/filtered-iterator.h" |
| 24 | #include "gdbsupport/safe-iterator.h" | |
| 08036331 PA |
25 | |
| 26 | /* A forward iterator that iterates over all inferiors. */ | |
| 27 | ||
| 28 | class all_inferiors_iterator | |
| 29 | { | |
| 30 | public: | |
| 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; | |
| 37 | ||
| 38 | /* Create an iterator pointing at HEAD. */ | |
| 39 | explicit all_inferiors_iterator (inferior *head) | |
| 40 | : m_inf (head) | |
| 41 | {} | |
| 42 | ||
| 43 | /* Create a one-past-end iterator. */ | |
| 44 | all_inferiors_iterator () | |
| 45 | : m_inf (nullptr) | |
| 46 | {} | |
| 47 | ||
| 48 | all_inferiors_iterator &operator++ () | |
| 49 | { | |
| 50 | m_inf = m_inf->next; | |
| 51 | return *this; | |
| 52 | } | |
| 53 | ||
| 54 | inferior *operator* () const | |
| 55 | { return m_inf; } | |
| 56 | ||
| 57 | bool operator!= (const all_inferiors_iterator &other) const | |
| 58 | { return m_inf != other.m_inf; } | |
| 59 | ||
| 60 | private: | |
| 61 | inferior *m_inf; | |
| 62 | }; | |
| 63 | ||
| 64 | /* Filter for filtered_iterator. Filters out exited inferiors. */ | |
| 65 | ||
| 66 | struct exited_inferior_filter | |
| 67 | { | |
| 68 | bool operator() (inferior *inf) | |
| 69 | { | |
| 70 | return inf->pid != 0; | |
| 71 | } | |
| 72 | }; | |
| 73 | ||
| 74 | /* Iterate over all non-exited inferiors. */ | |
| 75 | ||
| 76 | using all_non_exited_inferiors_iterator | |
| 77 | = filtered_iterator<all_inferiors_iterator, exited_inferior_filter>; | |
| 78 | ||
| 79 | /* A range adapter that makes it possible to iterate over all | |
| 80 | inferiors with range-for. */ | |
| 81 | struct all_inferiors_range | |
| 82 | { | |
| 83 | all_inferiors_iterator begin () const | |
| 84 | { return all_inferiors_iterator (inferior_list); } | |
| 85 | all_inferiors_iterator end () const | |
| 86 | { return all_inferiors_iterator (); } | |
| 87 | }; | |
| 88 | ||
| 89 | /* Iterate over all inferiors, safely. */ | |
| 90 | ||
| 91 | using all_inferiors_safe_iterator | |
| 92 | = basic_safe_iterator<all_inferiors_iterator>; | |
| 93 | ||
| 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. */ | |
| 97 | ||
| 98 | struct all_inferiors_safe_range | |
| 99 | { | |
| 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 (); } | |
| 104 | }; | |
| 105 | ||
| 106 | /* A range adapter that makes it possible to iterate over all | |
| 107 | non-exited inferiors with range-for. */ | |
| 108 | ||
| 109 | struct all_non_exited_inferiors_range | |
| 110 | { | |
| 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 (); } | |
| 115 | }; | |
| 116 | ||
| 117 | #endif /* !defined (INFERIOR_ITER_H) */ |