76727919ce
This converts observers from using a special source-generating script to be plain C++. This version of the patch takes advantage of C++11 by using std::function and variadic templates; incorporates Pedro's patches; and renames the header file to "observable.h" (this change eliminates the need for a clean rebuild). Note that Pedro's patches used a template lambda in tui-hooks.c, but this failed to compile on some buildbot instances (presumably due to differing C++ versions); I replaced this with an ordinary template function. Regression tested on the buildbot. gdb/ChangeLog 2018-03-19 Pedro Alves <palves@redhat.com> Tom Tromey <tom@tromey.com> * unittests/observable-selftests.c: New file. * common/observable.h: New file. * observable.h: New file. * ada-lang.c, ada-tasks.c, agent.c, aix-thread.c, annotate.c, arm-tdep.c, auto-load.c, auxv.c, break-catch-syscall.c, breakpoint.c, bsd-uthread.c, cli/cli-interp.c, cli/cli-setshow.c, corefile.c, dummy-frame.c, event-loop.c, event-top.c, exec.c, extension.c, frame.c, gdbarch.c, guile/scm-breakpoint.c, infcall.c, infcmd.c, inferior.c, inflow.c, infrun.c, jit.c, linux-tdep.c, linux-thread-db.c, m68klinux-tdep.c, mi/mi-cmd-break.c, mi/mi-interp.c, mi/mi-main.c, objfiles.c, ppc-linux-nat.c, ppc-linux-tdep.c, printcmd.c, procfs.c, python/py-breakpoint.c, python/py-finishbreakpoint.c, python/py-inferior.c, python/py-unwind.c, ravenscar-thread.c, record-btrace.c, record-full.c, record.c, regcache.c, remote.c, riscv-tdep.c, sol-thread.c, solib-aix.c, solib-spu.c, solib.c, spu-multiarch.c, spu-tdep.c, stack.c, symfile-mem.c, symfile.c, symtab.c, thread.c, top.c, tracepoint.c, tui/tui-hooks.c, tui/tui-interp.c, valops.c: Update all users. * tui/tui-hooks.c (tui_bp_created_observer) (tui_bp_deleted_observer, tui_bp_modified_observer) (tui_inferior_exit_observer, tui_before_prompt_observer) (tui_normal_stop_observer, tui_register_changed_observer): Remove. (tui_observers_token): New global. (attach_or_detach, tui_attach_detach_observers): New functions. (tui_install_hooks, tui_remove_hooks): Use tui_attach_detach_observers. * record-btrace.c (record_btrace_thread_observer): Remove. (record_btrace_thread_observer_token): New global. * observer.sh: Remove. * observer.c: Rename to observable.c. * observable.c (namespace gdb_observers): Define new objects. (observer_debug): Move into gdb_observers namespace. (struct observer, struct observer_list, xalloc_observer_list_node) (xfree_observer_list_node, generic_observer_attach) (generic_observer_detach, generic_observer_notify): Remove. (_initialize_observer): Update. Don't include observer.inc. * Makefile.in (generated_files): Remove observer.h, observer.inc. (clean mostlyclean): Likewise. (observer.h, observer.inc): Remove targets. (SUBDIR_UNITTESTS_SRCS): Add observable-selftests.c. (COMMON_SFILES): Use observable.c, not observer.c. * .gitignore: Remove observer.h. gdb/doc/ChangeLog 2018-03-19 Tom Tromey <tom@tromey.com> * observer.texi: Remove. gdb/testsuite/ChangeLog 2018-03-19 Tom Tromey <tom@tromey.com> * gdb.gdb/observer.exp: Remove.
95 lines
2.8 KiB
C
95 lines
2.8 KiB
C
/* Handling of inferior events for the event loop for GDB, the GNU debugger.
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Copyright (C) 1999-2018 Free Software Foundation, Inc.
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Written by Elena Zannoni <ezannoni@cygnus.com> of Cygnus Solutions.
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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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#include "defs.h"
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#include "inferior.h"
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#include "infrun.h"
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#include "event-loop.h"
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#include "event-top.h"
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#include "inf-loop.h"
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#include "remote.h"
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#include "language.h"
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#include "gdbthread.h"
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#include "continuations.h"
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#include "interps.h"
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#include "top.h"
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#include "observable.h"
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/* General function to handle events in the inferior. */
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void
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inferior_event_handler (enum inferior_event_type event_type,
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gdb_client_data client_data)
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{
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switch (event_type)
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{
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case INF_REG_EVENT:
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fetch_inferior_event (client_data);
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break;
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case INF_EXEC_COMPLETE:
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if (!non_stop)
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{
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/* Unregister the inferior from the event loop. This is done
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so that when the inferior is not running we don't get
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distracted by spurious inferior output. */
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if (target_has_execution && target_can_async_p ())
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target_async (0);
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}
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/* Do all continuations associated with the whole inferior (not
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a particular thread). */
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if (!ptid_equal (inferior_ptid, null_ptid))
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do_all_inferior_continuations (0);
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/* When running a command list (from a user command, say), these
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are only run when the command list is all done. */
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if (current_ui->async)
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{
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check_frame_language_change ();
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/* Don't propagate breakpoint commands errors. Either we're
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stopping or some command resumes the inferior. The user will
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be informed. */
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TRY
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{
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bpstat_do_actions ();
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}
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CATCH (e, RETURN_MASK_ALL)
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{
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/* If the user was running a foreground execution
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command, then propagate the error so that the prompt
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can be reenabled. Otherwise, the user already has
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the prompt and is typing some unrelated command, so
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just inform the user and swallow the exception. */
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if (current_ui->prompt_state == PROMPT_BLOCKED)
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throw_exception (e);
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else
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exception_print (gdb_stderr, e);
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}
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END_CATCH
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}
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break;
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default:
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printf_unfiltered (_("Event type not recognized.\n"));
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break;
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}
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}
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