mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-23 01:53:38 +08:00
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
136 lines
3.7 KiB
C++
136 lines
3.7 KiB
C++
/* Inferior iterators and ranges for GDB, the GNU debugger.
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Copyright (C) 2018-2024 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef INFERIOR_ITER_H
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#define INFERIOR_ITER_H
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#include "gdbsupport/filtered-iterator.h"
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#include "gdbsupport/safe-iterator.h"
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/* A forward iterator that iterates over all inferiors. */
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class all_inferiors_iterator
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{
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public:
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typedef all_inferiors_iterator self_type;
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typedef struct inferior *value_type;
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typedef struct inferior *&reference;
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typedef struct inferior **pointer;
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typedef std::forward_iterator_tag iterator_category;
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typedef int difference_type;
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/* Create an iterator pointing at HEAD. */
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all_inferiors_iterator (process_stratum_target *proc_target,
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const intrusive_list<inferior> &list)
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: m_proc_target (proc_target), m_inf_iter (list.begin ())
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{
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intrusive_list<inferior>::iterator end;
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/* Advance M_INF to the first inferior's position. */
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for (; m_inf_iter != end; ++m_inf_iter)
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if (m_inf_matches ())
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return;
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}
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/* Create a one-past-end iterator. */
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all_inferiors_iterator ()
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: m_proc_target (nullptr)
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{}
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all_inferiors_iterator &operator++ ()
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{
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advance ();
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return *this;
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}
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inferior *operator* () const
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{ return &*m_inf_iter; }
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bool operator!= (const all_inferiors_iterator &other) const
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{ return m_inf_iter != other.m_inf_iter; }
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private:
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/* Advance to next inferior, skipping filtered inferiors. */
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void advance ()
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{
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intrusive_list<inferior>::iterator end;
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/* The loop below is written in the natural way as-if we'd always
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start at the beginning of the inferior list. This
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fast-forwards the algorithm to the actual current position. */
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goto start;
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while (m_inf_iter != end)
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{
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if (m_inf_matches ())
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return;
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start:
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++m_inf_iter;
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}
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}
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bool m_inf_matches ()
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{
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return (m_proc_target == nullptr
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|| m_proc_target == m_inf_iter->process_target ());
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}
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process_stratum_target *m_proc_target;
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intrusive_list<inferior>::iterator m_inf_iter;
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};
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/* A range adapter that makes it possible to iterate over all
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inferiors with range-for. */
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using all_inferiors_range = iterator_range<all_inferiors_iterator>;
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/* Filter for filtered_iterator. Filters out exited inferiors. */
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struct exited_inferior_filter
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{
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bool operator() (inferior *inf)
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{
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return inf->pid != 0;
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}
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};
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/* Iterate over all non-exited inferiors. */
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using all_non_exited_inferiors_iterator
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= filtered_iterator<all_inferiors_iterator, exited_inferior_filter>;
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/* A range adapter that makes it possible to iterate over all
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non-exited inferiors with range-for. */
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using all_non_exited_inferiors_range
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= iterator_range<all_non_exited_inferiors_iterator>;
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/* Iterate over all inferiors, safely. */
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using all_inferiors_safe_iterator
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= basic_safe_iterator<all_inferiors_iterator>;
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/* A range adapter that makes it possible to iterate over all
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inferiors with range-for "safely". I.e., it is safe to delete the
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currently-iterated inferior. */
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using all_inferiors_safe_range = iterator_range<all_inferiors_safe_iterator>;
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#endif /* !defined (INFERIOR_ITER_H) */
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