/* Thread iterators and ranges for GDB, the GNU debugger.
- Copyright (C) 2018-2019 Free Software Foundation, Inc.
+ Copyright (C) 2018-2022 Free Software Foundation, Inc.
This file is part of GDB.
#define THREAD_ITER_H
#include "gdbsupport/filtered-iterator.h"
+#include "gdbsupport/iterator-range.h"
#include "gdbsupport/next-iterator.h"
+#include "gdbsupport/reference-to-pointer-iterator.h"
#include "gdbsupport/safe-iterator.h"
/* A forward iterator that iterates over a given inferior's
threads. */
-using inf_threads_iterator = next_iterator<thread_info>;
+using inf_threads_iterator
+ = reference_to_pointer_iterator<intrusive_list<thread_info>::iterator>;
/* A forward iterator that iterates over all threads of all
inferiors. */
/* Creates an iterator that iterates over all threads that match
FILTER_PTID. */
- explicit all_matching_threads_iterator (ptid_t filter_ptid);
+ all_matching_threads_iterator (process_stratum_target *filter_target,
+ ptid_t filter_ptid);
/* Create a one-past-end iterator. */
- all_matching_threads_iterator ()
- : m_inf (nullptr),
- m_thr (nullptr),
- m_filter_ptid (minus_one_ptid)
- {}
+ all_matching_threads_iterator () = default;
thread_info *operator* () const { return m_thr; }
/* Advance to next thread, skipping filtered threads. */
void advance ();
- /* True if M_INF matches the process identified by
- M_FILTER_PTID. */
+ /* True if M_INF has the process target M_FILTER_TARGET. */
bool m_inf_matches ();
private:
+ enum class mode
+ {
+ /* All threads, possibly filtered down to a single target. */
+ ALL_THREADS,
+
+ /* All threads of the given inferior. */
+ ALL_THREADS_OF_INFERIOR,
+
+ /* A specific thread. */
+ SINGLE_THREAD,
+ } m_mode;
+
/* The current inferior. */
- inferior *m_inf;
+ inferior *m_inf = nullptr;
/* The current thread. */
- thread_info *m_thr;
+ thread_info *m_thr = nullptr;
- /* The filter. */
- ptid_t m_filter_ptid;
+ /* The target we filter on (may be nullptr). */
+ process_stratum_target *m_filter_target;
};
/* Filter for filtered_iterator. Filters out exited threads. */
/* A range adapter that makes it possible to iterate over all threads
of an inferior with range-for. */
-using inf_threads_range
- = next_adapter<thread_info, inf_threads_iterator>;
+using inf_threads_range = iterator_range<inf_threads_iterator>;
/* A range adapter that makes it possible to iterate over all
non-exited threads of an inferior with range-for. */
using inf_non_exited_threads_range
- = next_adapter<thread_info, inf_non_exited_threads_iterator>;
+ = iterator_range<inf_non_exited_threads_iterator>;
/* A range adapter that makes it possible to iterate over all threads
of an inferior with range-for, safely. */
-using safe_inf_threads_range
- = next_adapter<thread_info, safe_inf_threads_iterator>;
-
-/* A range adapter that makes it possible to iterate over all threads
- of all inferiors with range-for. */
-
-struct all_threads_range
-{
- all_threads_iterator begin () const
- { return all_threads_iterator (all_threads_iterator::begin_t {}); }
- all_threads_iterator end () const
- { return all_threads_iterator (); }
-};
+using safe_inf_threads_range = iterator_range<safe_inf_threads_iterator>;
/* A range adapter that makes it possible to iterate over all threads
with range-for "safely". I.e., it is safe to delete the
currently-iterated thread. */
-struct all_threads_safe_range
-{
- all_threads_safe_iterator begin () const
- { return all_threads_safe_iterator (all_threads_iterator::begin_t {}); }
- all_threads_safe_iterator end () const
- { return all_threads_safe_iterator (); }
-};
+using all_threads_safe_range = iterator_range<all_threads_safe_iterator>;
/* A range adapter that makes it possible to iterate over all threads
that match a PTID filter with range-for. */
struct all_matching_threads_range
{
public:
- explicit all_matching_threads_range (ptid_t filter_ptid)
- : m_filter_ptid (filter_ptid)
+ all_matching_threads_range (process_stratum_target *filter_target,
+ ptid_t filter_ptid)
+ : m_filter_target (filter_target), m_filter_ptid (filter_ptid)
{}
all_matching_threads_range ()
- : m_filter_ptid (minus_one_ptid)
+ : m_filter_target (nullptr), m_filter_ptid (minus_one_ptid)
{}
all_matching_threads_iterator begin () const
- { return all_matching_threads_iterator (m_filter_ptid); }
+ { return all_matching_threads_iterator (m_filter_target, m_filter_ptid); }
all_matching_threads_iterator end () const
{ return all_matching_threads_iterator (); }
private:
/* The filter. */
+ process_stratum_target *m_filter_target;
ptid_t m_filter_ptid;
};
class all_non_exited_threads_range
{
public:
- explicit all_non_exited_threads_range (ptid_t filter_ptid)
- : m_filter_ptid (filter_ptid)
+ all_non_exited_threads_range (process_stratum_target *filter_target,
+ ptid_t filter_ptid)
+ : m_filter_target (filter_target), m_filter_ptid (filter_ptid)
{}
all_non_exited_threads_range ()
- : m_filter_ptid (minus_one_ptid)
+ : m_filter_target (nullptr), m_filter_ptid (minus_one_ptid)
{}
all_non_exited_threads_iterator begin () const
- { return all_non_exited_threads_iterator (m_filter_ptid); }
+ { return all_non_exited_threads_iterator (m_filter_target, m_filter_ptid); }
all_non_exited_threads_iterator end () const
{ return all_non_exited_threads_iterator (); }
private:
+ process_stratum_target *m_filter_target;
ptid_t m_filter_ptid;
};
projects / binutils-gdb.git / blobdiff