binutils-gdb/gdb/thread-iter.h
Tom Tromey 268a13a5a3 Rename common to gdbsupport
This is the next patch in the ongoing series to move gdbsever to the
top level.

This patch just renames the "common" directory.  The idea is to do
this move in two parts: first rename the directory (this patch), then
move the directory to the top.  This approach makes the patches a bit
more tractable.

I chose the name "gdbsupport" for the directory.  However, as this
patch was largely written by sed, we could pick a new name without too
much difficulty.

Tested by the buildbot.

gdb/ChangeLog
2019-07-09  Tom Tromey  <tom@tromey.com>

	* contrib/ari/gdb_ari.sh: Change common to gdbsupport.
	* configure: Rebuild.
	* configure.ac: Change common to gdbsupport.
	* gdbsupport: Rename from common.
	* acinclude.m4: Change common to gdbsupport.
	* Makefile.in (CONFIG_SRC_SUBDIR, COMMON_SFILES)
	(HFILES_NO_SRCDIR, stamp-version, ALLDEPFILES): Change common to
	gdbsupport.
	* aarch64-tdep.c, ada-lang.c, ada-lang.h, agent.c, alloc.c,
	amd64-darwin-tdep.c, amd64-dicos-tdep.c, amd64-fbsd-nat.c,
	amd64-fbsd-tdep.c, amd64-linux-nat.c, amd64-linux-tdep.c,
	amd64-nbsd-tdep.c, amd64-obsd-tdep.c, amd64-sol2-tdep.c,
	amd64-tdep.c, amd64-windows-tdep.c, arch-utils.c,
	arch/aarch64-insn.c, arch/aarch64.c, arch/aarch64.h, arch/amd64.c,
	arch/amd64.h, arch/arm-get-next-pcs.c, arch/arm-linux.c,
	arch/arm.c, arch/i386.c, arch/i386.h, arch/ppc-linux-common.c,
	arch/riscv.c, arch/riscv.h, arch/tic6x.c, arm-tdep.c, auto-load.c,
	auxv.c, ax-gdb.c, ax-general.c, ax.h, breakpoint.c, breakpoint.h,
	btrace.c, btrace.h, build-id.c, build-id.h, c-lang.h, charset.c,
	charset.h, cli/cli-cmds.c, cli/cli-cmds.h, cli/cli-decode.c,
	cli/cli-dump.c, cli/cli-option.h, cli/cli-script.c,
	coff-pe-read.c, command.h, compile/compile-c-support.c,
	compile/compile-c.h, compile/compile-cplus-symbols.c,
	compile/compile-cplus-types.c, compile/compile-cplus.h,
	compile/compile-loc2c.c, compile/compile.c, completer.c,
	completer.h, contrib/ari/gdb_ari.sh, corefile.c, corelow.c,
	cp-support.c, cp-support.h, cp-valprint.c, csky-tdep.c, ctf.c,
	darwin-nat.c, debug.c, defs.h, disasm-selftests.c, disasm.c,
	disasm.h, dtrace-probe.c, dwarf-index-cache.c,
	dwarf-index-cache.h, dwarf-index-write.c, dwarf2-frame.c,
	dwarf2expr.c, dwarf2loc.c, dwarf2read.c, event-loop.c,
	event-top.c, exceptions.c, exec.c, extension.h, fbsd-nat.c,
	features/aarch64-core.c, features/aarch64-fpu.c,
	features/aarch64-pauth.c, features/aarch64-sve.c,
	features/i386/32bit-avx.c, features/i386/32bit-avx512.c,
	features/i386/32bit-core.c, features/i386/32bit-linux.c,
	features/i386/32bit-mpx.c, features/i386/32bit-pkeys.c,
	features/i386/32bit-segments.c, features/i386/32bit-sse.c,
	features/i386/64bit-avx.c, features/i386/64bit-avx512.c,
	features/i386/64bit-core.c, features/i386/64bit-linux.c,
	features/i386/64bit-mpx.c, features/i386/64bit-pkeys.c,
	features/i386/64bit-segments.c, features/i386/64bit-sse.c,
	features/i386/x32-core.c, features/riscv/32bit-cpu.c,
	features/riscv/32bit-csr.c, features/riscv/32bit-fpu.c,
	features/riscv/64bit-cpu.c, features/riscv/64bit-csr.c,
	features/riscv/64bit-fpu.c, features/tic6x-c6xp.c,
	features/tic6x-core.c, features/tic6x-gp.c, filename-seen-cache.h,
	findcmd.c, findvar.c, fork-child.c, gcore.c, gdb_bfd.c, gdb_bfd.h,
	gdb_proc_service.h, gdb_regex.c, gdb_select.h, gdb_usleep.c,
	gdbarch-selftests.c, gdbthread.h, gdbtypes.h, gnu-nat.c,
	go32-nat.c, guile/guile.c, guile/scm-ports.c,
	guile/scm-safe-call.c, guile/scm-type.c, i386-fbsd-nat.c,
	i386-fbsd-tdep.c, i386-go32-tdep.c, i386-linux-nat.c,
	i386-linux-tdep.c, i386-tdep.c, i387-tdep.c,
	ia64-libunwind-tdep.c, ia64-linux-nat.c, inf-child.c,
	inf-ptrace.c, infcall.c, infcall.h, infcmd.c, inferior-iter.h,
	inferior.c, inferior.h, inflow.c, inflow.h, infrun.c, infrun.h,
	inline-frame.c, language.h, linespec.c, linux-fork.c, linux-nat.c,
	linux-tdep.c, linux-thread-db.c, location.c, machoread.c,
	macrotab.h, main.c, maint.c, maint.h, memattr.c, memrange.h,
	mi/mi-cmd-break.h, mi/mi-cmd-env.c, mi/mi-cmd-stack.c,
	mi/mi-cmd-var.c, mi/mi-interp.c, mi/mi-main.c, mi/mi-parse.h,
	minsyms.c, mips-linux-tdep.c, namespace.h,
	nat/aarch64-linux-hw-point.c, nat/aarch64-linux-hw-point.h,
	nat/aarch64-linux.c, nat/aarch64-sve-linux-ptrace.c,
	nat/amd64-linux-siginfo.c, nat/fork-inferior.c,
	nat/linux-btrace.c, nat/linux-btrace.h, nat/linux-namespaces.c,
	nat/linux-nat.h, nat/linux-osdata.c, nat/linux-personality.c,
	nat/linux-procfs.c, nat/linux-ptrace.c, nat/linux-ptrace.h,
	nat/linux-waitpid.c, nat/mips-linux-watch.c,
	nat/mips-linux-watch.h, nat/ppc-linux.c, nat/x86-dregs.c,
	nat/x86-dregs.h, nat/x86-linux-dregs.c, nat/x86-linux.c,
	nto-procfs.c, nto-tdep.c, objfile-flags.h, objfiles.c, objfiles.h,
	obsd-nat.c, observable.h, osdata.c, p-valprint.c, parse.c,
	parser-defs.h, ppc-linux-nat.c, printcmd.c, probe.c, proc-api.c,
	procfs.c, producer.c, progspace.h, psymtab.h,
	python/py-framefilter.c, python/py-inferior.c, python/py-ref.h,
	python/py-type.c, python/python.c, record-btrace.c, record-full.c,
	record.c, record.h, regcache-dump.c, regcache.c, regcache.h,
	remote-fileio.c, remote-fileio.h, remote-sim.c, remote.c,
	riscv-tdep.c, rs6000-aix-tdep.c, rust-exp.y, s12z-tdep.c,
	selftest-arch.c, ser-base.c, ser-event.c, ser-pipe.c, ser-tcp.c,
	ser-unix.c, skip.c, solib-aix.c, solib-target.c, solib.c,
	source-cache.c, source.c, source.h, sparc-nat.c, spu-linux-nat.c,
	stack.c, stap-probe.c, symfile-add-flags.h, symfile.c, symfile.h,
	symtab.c, symtab.h, target-descriptions.c, target-descriptions.h,
	target-memory.c, target.c, target.h, target/waitstatus.c,
	target/waitstatus.h, thread-iter.h, thread.c, tilegx-tdep.c,
	top.c, top.h, tracefile-tfile.c, tracefile.c, tracepoint.c,
	tracepoint.h, tui/tui-io.c, ui-file.c, ui-out.h,
	unittests/array-view-selftests.c,
	unittests/child-path-selftests.c, unittests/cli-utils-selftests.c,
	unittests/common-utils-selftests.c,
	unittests/copy_bitwise-selftests.c, unittests/environ-selftests.c,
	unittests/format_pieces-selftests.c,
	unittests/function-view-selftests.c,
	unittests/lookup_name_info-selftests.c,
	unittests/memory-map-selftests.c, unittests/memrange-selftests.c,
	unittests/mkdir-recursive-selftests.c,
	unittests/observable-selftests.c,
	unittests/offset-type-selftests.c, unittests/optional-selftests.c,
	unittests/parse-connection-spec-selftests.c,
	unittests/ptid-selftests.c, unittests/rsp-low-selftests.c,
	unittests/scoped_fd-selftests.c,
	unittests/scoped_mmap-selftests.c,
	unittests/scoped_restore-selftests.c,
	unittests/string_view-selftests.c, unittests/style-selftests.c,
	unittests/tracepoint-selftests.c, unittests/unpack-selftests.c,
	unittests/utils-selftests.c, unittests/xml-utils-selftests.c,
	utils.c, utils.h, valarith.c, valops.c, valprint.c, value.c,
	value.h, varobj.c, varobj.h, windows-nat.c, x86-linux-nat.c,
	xml-support.c, xml-support.h, xml-tdesc.h, xstormy16-tdep.c,
	xtensa-linux-nat.c, dwarf2read.h: Change common to gdbsupport.

gdb/gdbserver/ChangeLog
2019-07-09  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.
	* configure.ac: Change common to gdbsupport.
	* acinclude.m4: Change common to gdbsupport.
	* Makefile.in (SFILES, OBS, GDBREPLAY_OBS, IPA_OBJS)
	(version-generated.c, gdbsupport/%-ipa.o, gdbsupport/%.o): Change
	common to gdbsupport.
	* ax.c, event-loop.c, fork-child.c, gdb_proc_service.h,
	gdbreplay.c, gdbthread.h, hostio-errno.c, hostio.c, i387-fp.c,
	inferiors.c, inferiors.h, linux-aarch64-tdesc-selftest.c,
	linux-amd64-ipa.c, linux-i386-ipa.c, linux-low.c,
	linux-tic6x-low.c, linux-x86-low.c, linux-x86-tdesc-selftest.c,
	linux-x86-tdesc.c, lynx-i386-low.c, lynx-low.c, mem-break.h,
	nto-x86-low.c, regcache.c, regcache.h, remote-utils.c, server.c,
	server.h, spu-low.c, symbol.c, target.h, tdesc.c, tdesc.h,
	thread-db.c, tracepoint.c, win32-i386-low.c, win32-low.c: Change
	common to gdbsupport.
2019-07-09 07:45:38 -06:00

257 lines
7.0 KiB
C++

/* Thread iterators and ranges for GDB, the GNU debugger.
Copyright (C) 2018-2019 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef THREAD_ITER_H
#define THREAD_ITER_H
#include "gdbsupport/filtered-iterator.h"
#include "gdbsupport/next-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>;
/* A forward iterator that iterates over all threads of all
inferiors. */
class all_threads_iterator
{
public:
typedef all_threads_iterator self_type;
typedef struct thread_info *value_type;
typedef struct thread_info *&reference;
typedef struct thread_info **pointer;
typedef std::forward_iterator_tag iterator_category;
typedef int difference_type;
/* Tag type. */
struct begin_t {};
/* Create an iterator that points to the first thread of the first
inferior. */
explicit all_threads_iterator (begin_t);
/* Create a one-past-end iterator. */
all_threads_iterator ()
: m_thr (nullptr)
{}
thread_info *operator* () const { return m_thr; }
all_threads_iterator &operator++ ()
{
advance ();
return *this;
}
bool operator== (const all_threads_iterator &other) const
{ return m_thr == other.m_thr; }
bool operator!= (const all_threads_iterator &other) const
{ return m_thr != other.m_thr; }
private:
/* Advance to the next thread. */
void advance ();
private:
/* The current inferior and thread. M_THR is NULL if we reached the
end of the threads list of the last inferior. */
inferior *m_inf;
thread_info *m_thr;
};
/* Iterate over all threads that match a given PTID. */
class all_matching_threads_iterator
{
public:
typedef all_matching_threads_iterator self_type;
typedef struct thread_info *value_type;
typedef struct thread_info *&reference;
typedef struct thread_info **pointer;
typedef std::forward_iterator_tag iterator_category;
typedef int difference_type;
/* Creates an iterator that iterates over all threads that match
FILTER_PTID. */
explicit all_matching_threads_iterator (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)
{}
thread_info *operator* () const { return m_thr; }
all_matching_threads_iterator &operator++ ()
{
advance ();
return *this;
}
bool operator== (const all_matching_threads_iterator &other) const
{ return m_thr == other.m_thr; }
bool operator!= (const all_matching_threads_iterator &other) const
{ return m_thr != other.m_thr; }
private:
/* Advance to next thread, skipping filtered threads. */
void advance ();
/* True if M_INF matches the process identified by
M_FILTER_PTID. */
bool m_inf_matches ();
private:
/* The current inferior. */
inferior *m_inf;
/* The current thread. */
thread_info *m_thr;
/* The filter. */
ptid_t m_filter_ptid;
};
/* Filter for filtered_iterator. Filters out exited threads. */
struct non_exited_thread_filter
{
bool operator() (struct thread_info *thr) const
{
return thr->state != THREAD_EXITED;
}
};
/* Iterate over all non-exited threads that match a given PTID. */
using all_non_exited_threads_iterator
= filtered_iterator<all_matching_threads_iterator, non_exited_thread_filter>;
/* Iterate over all non-exited threads of an inferior. */
using inf_non_exited_threads_iterator
= filtered_iterator<inf_threads_iterator, non_exited_thread_filter>;
/* Iterate over all threads of all inferiors, safely. */
using all_threads_safe_iterator
= basic_safe_iterator<all_threads_iterator>;
/* Iterate over all threads of an inferior, safely. */
using safe_inf_threads_iterator
= basic_safe_iterator<inf_threads_iterator>;
/* 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>;
/* 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>;
/* 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 (); }
};
/* 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 (); }
};
/* 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 ()
: m_filter_ptid (minus_one_ptid)
{}
all_matching_threads_iterator begin () const
{ return all_matching_threads_iterator (m_filter_ptid); }
all_matching_threads_iterator end () const
{ return all_matching_threads_iterator (); }
private:
/* The filter. */
ptid_t m_filter_ptid;
};
/* A range adapter that makes it possible to iterate over all
non-exited threads of all inferiors, with range-for.
Threads/inferiors that do not match FILTER_PTID are filtered
out. */
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 ()
: m_filter_ptid (minus_one_ptid)
{}
all_non_exited_threads_iterator begin () const
{ return all_non_exited_threads_iterator (m_filter_ptid); }
all_non_exited_threads_iterator end () const
{ return all_non_exited_threads_iterator (); }
private:
ptid_t m_filter_ptid;
};
#endif /* THREAD_ITER_H */