| 1 | /* Handling of inferior events for the event loop for GDB, the GNU debugger. |
| 2 | Copyright (C) 1999-2017 Free Software Foundation, Inc. |
| 3 | Written by Elena Zannoni <ezannoni@cygnus.com> of Cygnus Solutions. |
| 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 | #include "defs.h" |
| 21 | #include "inferior.h" |
| 22 | #include "infrun.h" |
| 23 | #include "event-loop.h" |
| 24 | #include "event-top.h" |
| 25 | #include "inf-loop.h" |
| 26 | #include "remote.h" |
| 27 | #include "language.h" |
| 28 | #include "gdbthread.h" |
| 29 | #include "continuations.h" |
| 30 | #include "interps.h" |
| 31 | #include "top.h" |
| 32 | #include "observer.h" |
| 33 | |
| 34 | /* General function to handle events in the inferior. */ |
| 35 | |
| 36 | void |
| 37 | inferior_event_handler (enum inferior_event_type event_type, |
| 38 | gdb_client_data client_data) |
| 39 | { |
| 40 | switch (event_type) |
| 41 | { |
| 42 | case INF_REG_EVENT: |
| 43 | fetch_inferior_event (client_data); |
| 44 | break; |
| 45 | |
| 46 | case INF_EXEC_COMPLETE: |
| 47 | if (!non_stop) |
| 48 | { |
| 49 | /* Unregister the inferior from the event loop. This is done |
| 50 | so that when the inferior is not running we don't get |
| 51 | distracted by spurious inferior output. */ |
| 52 | if (target_has_execution && target_can_async_p ()) |
| 53 | target_async (0); |
| 54 | } |
| 55 | |
| 56 | /* Do all continuations associated with the whole inferior (not |
| 57 | a particular thread). */ |
| 58 | if (!ptid_equal (inferior_ptid, null_ptid)) |
| 59 | do_all_inferior_continuations (0); |
| 60 | |
| 61 | /* When running a command list (from a user command, say), these |
| 62 | are only run when the command list is all done. */ |
| 63 | if (current_ui->async) |
| 64 | { |
| 65 | check_frame_language_change (); |
| 66 | |
| 67 | /* Don't propagate breakpoint commands errors. Either we're |
| 68 | stopping or some command resumes the inferior. The user will |
| 69 | be informed. */ |
| 70 | TRY |
| 71 | { |
| 72 | bpstat_do_actions (); |
| 73 | } |
| 74 | CATCH (e, RETURN_MASK_ALL) |
| 75 | { |
| 76 | exception_print (gdb_stderr, e); |
| 77 | } |
| 78 | END_CATCH |
| 79 | } |
| 80 | break; |
| 81 | |
| 82 | default: |
| 83 | printf_unfiltered (_("Event type not recognized.\n")); |
| 84 | break; |
| 85 | } |
| 86 | } |