octave: libinterp/corefcn/sighandlers.cc annotate

annotate libinterp/corefcn/sighandlers.cc @ 31846:5f0b8101234e

Remove several race conditions with signal handler (bug #61370). This patch removes several race conditions between the interpreter and the Ctrl-C signal handler, as described in more detail in bug #61370. * libinterp/corefcn/sighandlers.h: Make can_interrupt atomic. * libinterp/corefcn/sighandlers.cc: Make can_interrupt, signals_caught atomic, use atomic value read for signals_caught, octave_interrupt_state, change 1 to true. * liboctave/util/quit.h: Move octave_interrupt_state and octave_signal_caught to C++ only code, rewrite octave_quit() function, rewrite OCTAVE_QUIT macro to use octave_quit_c() function. * liboctave/util/quit.cc: Make octave_interrupt_state and octave_signal_caught atomic, add new wrapper function octave_quit_c(). * libinterp/corefcn/interpreter.h: Make octave_initialized atomic. * libinterp/corefcn/interpreter.cc: Make octave_initialized atomic, change 0 to false. * liboctave/util/action-container.h: New namespace "util", make m_val atomic. * liboctave/util/oct-atomic.c: Reorder preprocessor if-elif-else ladder. * liboctave/util/cmd-edit.cc: Change 0 to false.

author	Reinhard Resch <r_resch@a1.net>
date	Tue, 21 Feb 2023 17:45:34 -0500
parents	21f9b34eb893
children	2e484f9f1f18

rev	line source
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	1 ////////////////////////////////////////////////////////////////////////
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	2 //
31706 597f3ee61a48 update Octave Project Developers copyright for the new year John W. Eaton <jwe@octave.org> parents: 31635 diff changeset	3 // Copyright (C) 1993-2023 The Octave Project Developers
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	4 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	5 // See the file COPYRIGHT.md in the top-level directory of this
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	6 // distribution or <https://octave.org/copyright/>.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	7 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	8 // This file is part of Octave.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	9 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	10 // Octave is free software: you can redistribute it and/or modify it
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	11 // under the terms of the GNU General Public License as published by
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	12 // the Free Software Foundation, either version 3 of the License, or
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	13 // (at your option) any later version.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	14 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	15 // Octave is distributed in the hope that it will be useful, but
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	16 // WITHOUT ANY WARRANTY; without even the implied warranty of
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	18 // GNU General Public License for more details.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	19 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	20 // You should have received a copy of the GNU General Public License
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	21 // along with Octave; see the file COPYING. If not, see
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	22 // <https://www.gnu.org/licenses/>.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	23 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	24 ////////////////////////////////////////////////////////////////////////
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	25
21724 aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef" John W. Eaton <jwe@octave.org> parents: 21609 diff changeset	26 #if defined (HAVE_CONFIG_H)
21301 40de9f8f23a6 Use '#include "config.h"' rather than <config.h>. Rik <rik@octave.org> parents: 21200 diff changeset	27 # include "config.h"
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	28 #endif
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	29
31846 5f0b8101234e Remove several race conditions with signal handler (bug #61370). Reinhard Resch <r_resch@a1.net> parents: 31771 diff changeset	30 #include <atomic>
21941 1d23b75cbcd1 hide signal.h from C++ sources John W. Eaton <jwe@octave.org> parents: 21938 diff changeset	31 #include <csignal>
2536 1d63e820ee13 [project @ 1996-11-19 20:34:29 by jwe] jwe parents: 2512 diff changeset	32 #include <cstdlib>
1d63e820ee13 [project @ 1996-11-19 20:34:29 by jwe] jwe parents: 2512 diff changeset	33
3503 d14c483b3c12 [project @ 2000-02-01 04:06:07 by jwe] jwe parents: 3343 diff changeset	34 #include <iostream>
1344 c2ca372d3279 [project @ 1995-09-04 00:50:16 by jwe] jwe parents: 1343 diff changeset	35 #include <new>
c2ca372d3279 [project @ 1995-09-04 00:50:16 by jwe] jwe parents: 1343 diff changeset	36
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	37 #if defined (OCTAVE_USE_WINDOWS_API)
6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	38 # define WIN32_LEAN_AND_MEAN
6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	39 # include <windows.h>
6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	40 #endif
6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	41
24734 5d8c4cbc56d7 don't use singleton pattern for child_list John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	42 #include "child-list.h"
3281 aaaa20d31a5f [project @ 1999-10-13 07:02:46 by jwe] jwe parents: 3252 diff changeset	43 #include "cmd-edit.h"
5453 89f5979e8552 [project @ 2005-09-17 00:50:58 by jwe] jwe parents: 5451 diff changeset	44 #include "oct-syscalls.h"
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4092 diff changeset	45 #include "quit.h"
21938 da9b960b1b2d use gnulib strsignal module John W. Eaton <jwe@octave.org> parents: 21936 diff changeset	46 #include "signal-wrappers.h"
3281 aaaa20d31a5f [project @ 1999-10-13 07:02:46 by jwe] jwe parents: 3252 diff changeset	47
4185 8f6d418d31c3 [project @ 2002-11-15 23:22:03 by jwe] jwe parents: 4182 diff changeset	48 #include "defun.h"
1352 19c10b8657d5 [project @ 1995-09-05 08:11:57 by jwe] jwe parents: 1350 diff changeset	49 #include "error.h"
10194 d4f813c3f5ed more debug mode fixes John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	50 #include "input.h"
24734 5d8c4cbc56d7 don't use singleton pattern for child_list John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	51 #include "interpreter-private.h"
22094 9203833cab7d move new interpreter class to separate file John W. Eaton <jwe@octave.org> parents: 22089 diff changeset	52 #include "interpreter.h"
1373 cea4101a2f18 [project @ 1995-09-07 07:19:58 by jwe] jwe parents: 1358 diff changeset	53 #include "load-save.h"
22089 c2c668b3051b use classes for octave application and interpreter John W. Eaton <jwe@octave.org> parents: 22051 diff changeset	54 #include "octave.h"
4294 755f6509bb01 [project @ 2003-01-11 04:01:53 by jwe] jwe parents: 4233 diff changeset	55 #include "oct-map.h"
2091 60f5e1c20815 [project @ 1996-04-28 08:32:39 by jwe] jwe parents: 2016 diff changeset	56 #include "pager.h"
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	57 #include "sighandlers.h"
4787 02c748eb2ddc [project @ 2004-02-18 21:20:26 by jwe] jwe parents: 4675 diff changeset	58 #include "sysdep.h"
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	59 #include "utils.h"
5794 1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe] jwe parents: 5780 diff changeset	60 #include "variables.h"
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	61
31605 e88a07dec498 maint: Use macros to begin/end C++ namespaces. Rik <rik@octave.org> parents: 31105 diff changeset	62 OCTAVE_BEGIN_NAMESPACE(octave)
29960 939bef0b66e0 merge "namespace octave" and OCTAVE_NAMESPACE_BEGIN/END blocks John W. Eaton <jwe@octave.org> parents: 29958 diff changeset	63
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	64 // Nonzero means we have already printed a message for this series of
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	65 // SIGPIPES. We assume that the writer will eventually give up.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	66 int pipe_handler_error_count = 0;
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	67
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	68 // TRUE means we can be interrupted.
31846 5f0b8101234e Remove several race conditions with signal handler (bug #61370). Reinhard Resch <r_resch@a1.net> parents: 31771 diff changeset	69 std::atomic<bool> can_interrupt{false};
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	70
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	71 // TRUE means we should try to enter the debugger on SIGINT.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	72 bool Vdebug_on_interrupt = false;
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	73
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	74 // Allow users to avoid writing octave-workspace for SIGHUP (sent by
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	75 // closing gnome-terminal, for example). Note that this variable has
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	76 // no effect if Vcrash_dumps_octave_core is FALSE.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	77 static bool Vsighup_dumps_octave_core = true;
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	78
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	79 // Similar to Vsighup_dumps_octave_core, but for SIGQUIT signal.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	80 static bool Vsigquit_dumps_octave_core = true;
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	81
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	82 // Similar to Vsighup_dumps_octave_core, but for SIGTERM signal.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	83 static bool Vsigterm_dumps_octave_core = true;
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	84
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	85 // List of signals we have caught since last call to signal_handler.
31846 5f0b8101234e Remove several race conditions with signal handler (bug #61370). Reinhard Resch <r_resch@a1.net> parents: 31771 diff changeset	86 static std::atomic<bool> *signals_caught = nullptr;
4185 8f6d418d31c3 [project @ 2002-11-15 23:22:03 by jwe] jwe parents: 4182 diff changeset	87
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	88 static void
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	89 my_friendly_exit (int sig, bool save_vars = true)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	90 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	91 std::cerr << "fatal: caught signal "
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	92 << octave_strsignal_wrapper (sig)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	93 << " -- stopping myself..." << std::endl;
23096 b7a24a734c37 defer SIGHUP and SIGTERM actions until octave_quit is called John W. Eaton <jwe@octave.org> parents: 23084 diff changeset	94
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	95 if (save_vars)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	96 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	97 load_save_system& load_save_sys = __get_load_save_system__ ();
30000 362029cc0202 * load-save.h (dump_octave_core): Deprecate function. Change all uses. John W. Eaton <jwe@octave.org> parents: 29961 diff changeset	98
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	99 load_save_sys.dump_octave_core ();
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	100 }
23096 b7a24a734c37 defer SIGHUP and SIGTERM actions until octave_quit is called John W. Eaton <jwe@octave.org> parents: 23084 diff changeset	101
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	102 sysdep_cleanup ();
23096 b7a24a734c37 defer SIGHUP and SIGTERM actions until octave_quit is called John W. Eaton <jwe@octave.org> parents: 23084 diff changeset	103
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	104 throw exit_exception (1);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	105 }
23096 b7a24a734c37 defer SIGHUP and SIGTERM actions until octave_quit is called John W. Eaton <jwe@octave.org> parents: 23084 diff changeset	106
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	107 // Called from octave_quit () to actually do something about the signals
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	108 // we have caught.
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	109
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	110 void
31771 21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations. Rik <rik@octave.org> parents: 31706 diff changeset	111 respond_to_pending_signals ()
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	112 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	113 // The list of signals is relatively short, so we will just go
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	114 // linearly through the list.
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	115
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	116 // Interrupt signals are currently handled separately.
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	117
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	118 static int sigint;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	119 static const bool have_sigint
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	120 = octave_get_sig_number ("SIGINT", &sigint);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	121
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	122 static int sigbreak;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	123 static const bool have_sigbreak
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	124 = octave_get_sig_number ("SIGBREAK", &sigbreak);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	125
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	126 // Termination signals.
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	127
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	128 static int sighup;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	129 static const bool have_sighup
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	130 = octave_get_sig_number ("SIGHUP", &sighup);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	131
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	132 static int sigquit;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	133 static const bool have_sigquit
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	134 = octave_get_sig_number ("SIGQUIT", &sigquit);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	135
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	136 static int sigterm;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	137 static const bool have_sigterm
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	138 = octave_get_sig_number ("SIGTERM", &sigterm);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	139
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	140 // Alarm signals.
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	141
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	142 static int sigalrm;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	143 static const bool have_sigalrm
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	144 = octave_get_sig_number ("SIGALRM", &sigalrm);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	145
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	146 static int sigvtalrm;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	147 static const bool have_sigvtalrm
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	148 = octave_get_sig_number ("SIGVTALRM", &sigvtalrm);
24525 a8eb8a734b9d tweaks to signal handlers John W. Eaton <jwe@octave.org> parents: 24520 diff changeset	149
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	150 // I/O signals.
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	151
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	152 static int sigio;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	153 static const bool have_sigio
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	154 = octave_get_sig_number ("SIGIO", &sigio);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	155
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	156 static int siglost;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	157 static const bool have_siglost
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	158 = octave_get_sig_number ("SIGLOST", &siglost);
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	159
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	160 static int sigpipe;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	161 static const bool have_sigpipe
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	162 = octave_get_sig_number ("SIGPIPE", &sigpipe);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	163
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	164 // Job control signals.
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	165
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	166 static int sigchld;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	167 static const bool have_sigchld
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	168 = octave_get_sig_number ("SIGCHLD", &sigchld);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	169
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	170 static int sigcld;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	171 static const bool have_sigcld
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	172 = octave_get_sig_number ("SIGCLD", &sigcld);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	173
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	174 // Resource limit signals.
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	175
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	176 static int sigxcpu;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	177 static const bool have_sigxcpu
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	178 = octave_get_sig_number ("SIGXCPU", &sigxcpu);
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	179
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	180 static int sigxfsz;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	181 static const bool have_sigxfsz
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	182 = octave_get_sig_number ("SIGXFSZ", &sigxfsz);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	183
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	184 // User signals.
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	185
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	186 static int sigusr1;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	187 static const bool have_sigusr1
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	188 = octave_get_sig_number ("SIGUSR1", &sigusr1);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	189
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	190 static int sigusr2;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	191 static const bool have_sigusr2
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	192 = octave_get_sig_number ("SIGUSR2", &sigusr2);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	193
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	194 child_list& kids = __get_child_list__ ();
24734 5d8c4cbc56d7 don't use singleton pattern for child_list John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	195
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	196 for (int sig = 0; sig < octave_num_signals (); sig++)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	197 {
31846 5f0b8101234e Remove several race conditions with signal handler (bug #61370). Reinhard Resch <r_resch@a1.net> parents: 31771 diff changeset	198 bool expected = true;
5f0b8101234e Remove several race conditions with signal handler (bug #61370). Reinhard Resch <r_resch@a1.net> parents: 31771 diff changeset	199
5f0b8101234e Remove several race conditions with signal handler (bug #61370). Reinhard Resch <r_resch@a1.net> parents: 31771 diff changeset	200 if (signals_caught[sig].compare_exchange_strong (expected, false))
31635 7d3467f8d713 Backed out changeset d9970470108a John W. Eaton <jwe@octave.org> parents: 31633 diff changeset	201 {
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	202 if ((have_sigchld && sig == sigchld)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	203 \|\| (have_sigcld && sig == sigcld))
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	204 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	205 // FIXME: should we block or ignore?
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	206 volatile interrupt_handler saved_interrupt_handler
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	207 = ignore_interrupts ();
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	208
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	209 void *context = octave_block_child ();
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	210
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	211 kids.wait ();
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	212
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	213 set_interrupt_handler (saved_interrupt_handler);
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	214
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	215 octave_unblock_child (context);
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	216
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	217 kids.reap ();
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	218 }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	219 else if (have_sigpipe && sig == sigpipe)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	220 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	221 std::cerr << "warning: broken pipe" << std::endl;
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	222
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	223 // Don't loop forever on account of this.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	224 // FIXME: is this really needed? Does it do anything
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	225 // useful now?
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	226
31635 7d3467f8d713 Backed out changeset d9970470108a John W. Eaton <jwe@octave.org> parents: 31633 diff changeset	227 if (pipe_handler_error_count++ > 100
7d3467f8d713 Backed out changeset d9970470108a John W. Eaton <jwe@octave.org> parents: 31633 diff changeset	228 && octave_interrupt_state >= 0)
7d3467f8d713 Backed out changeset d9970470108a John W. Eaton <jwe@octave.org> parents: 31633 diff changeset	229 octave_interrupt_state++;
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	230 }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	231 else if (have_sighup && sig == sighup)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	232 my_friendly_exit (sighup, Vsighup_dumps_octave_core);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	233 else if (have_sigquit && sig == sigquit)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	234 my_friendly_exit (sigquit, Vsigquit_dumps_octave_core);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	235 else if (have_sigterm && sig == sigterm)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	236 my_friendly_exit (sigterm, Vsigterm_dumps_octave_core);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	237 else if ((have_sigalrm && sig == sigalrm)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	238 \|\| (have_sigvtalrm && sig == sigvtalrm)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	239 \|\| (have_sigio && sig == sigio)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	240 \|\| (have_siglost && sig == siglost)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	241 \|\| (have_sigxcpu && sig == sigxcpu)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	242 \|\| (have_sigxfsz && sig == sigxfsz)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	243 \|\| (have_sigusr1 && sig == sigusr1)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	244 \|\| (have_sigusr2 && sig == sigusr2))
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	245 std::cerr << "warning: ignoring signal: "
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	246 << octave_strsignal_wrapper (sig)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	247 << std::endl;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	248 else if ((have_sigint && sig == sigint)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	249 \|\| (have_sigbreak && sig == sigbreak))
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	250 ; // Handled separately; do nothing.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	251 else
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	252 std::cerr << "warning: ignoring unexpected signal: "
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	253 << octave_strsignal_wrapper (sig)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	254 << std::endl;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	255 }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	256 }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	257 }
17958 1adf3710bb68 Working CTRL-C handling implementation for Win32. Michael Goffioul <michael.goffioul@gmail.com> parents: 17861 diff changeset	258
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	259 sig_handler *
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	260 set_signal_handler (int sig, sig_handler *handler, bool restart_syscalls)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	261 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	262 return octave_set_signal_handler_internal (sig, handler, restart_syscalls);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	263 }
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	264
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	265 sig_handler *
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	266 set_signal_handler (const char signame, sig_handler handler,
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	267 bool restart_syscalls)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	268 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	269 return octave_set_signal_handler_by_name (signame, handler,
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	270 restart_syscalls);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	271 }
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	272
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	273 static void
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	274 generic_sig_handler (int sig)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	275 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	276 // FIXME: this function may execute in a separate signal handler or
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	277 // signal watcher thread so it should probably be more careful about
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	278 // how it accesses global objects.
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	279
31846 5f0b8101234e Remove several race conditions with signal handler (bug #61370). Reinhard Resch <r_resch@a1.net> parents: 31771 diff changeset	280 octave_signal_caught = true;
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	281
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	282 signals_caught[sig] = true;
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	283
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	284 static int sigint;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	285 static const bool have_sigint
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	286 = octave_get_sig_number ("SIGINT", &sigint);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	287
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	288 static int sigbreak;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	289 static const bool have_sigbreak
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	290 = octave_get_sig_number ("SIGBREAK", &sigbreak);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	291
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	292 if ((have_sigint && sig == sigint)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	293 \|\| (have_sigbreak && sig == sigbreak))
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	294 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	295 if (! octave_initialized)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	296 exit (1);
25284 78fb24bdd8bb unblock async signals before executing subprocess (bug #53635) John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	297
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	298 if (can_interrupt)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	299 {
31846 5f0b8101234e Remove several race conditions with signal handler (bug #61370). Reinhard Resch <r_resch@a1.net> parents: 31771 diff changeset	300 octave_signal_caught = true;
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	301 octave_interrupt_state++;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	302 }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	303 }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	304 }
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	305
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	306 static void
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	307 deadly_sig_handler (int sig)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	308 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	309 std::cerr << "fatal: caught signal "
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	310 << octave_strsignal_wrapper (sig)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	311 << " -- stopping myself..." << std::endl;
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	312
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	313 octave_set_default_signal_handler (sig);
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	314
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	315 octave_raise_wrapper (sig);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	316 }
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	317
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	318 static void
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	319 fpe_sig_handler (int)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	320 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	321 // FIXME: is there something better we can do?
23096 b7a24a734c37 defer SIGHUP and SIGTERM actions until octave_quit is called John W. Eaton <jwe@octave.org> parents: 23084 diff changeset	322
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	323 std::cerr << "warning: floating point exception" << std::endl;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	324 }
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	325
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	326 interrupt_handler
31771 21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations. Rik <rik@octave.org> parents: 31706 diff changeset	327 catch_interrupts ()
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	328 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	329 interrupt_handler retval;
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	330
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	331 retval.int_handler = set_signal_handler ("SIGINT", generic_sig_handler);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	332 retval.brk_handler = set_signal_handler ("SIGBREAK", generic_sig_handler);
17958 1adf3710bb68 Working CTRL-C handling implementation for Win32. Michael Goffioul <michael.goffioul@gmail.com> parents: 17861 diff changeset	333
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	334 return retval;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	335 }
17958 1adf3710bb68 Working CTRL-C handling implementation for Win32. Michael Goffioul <michael.goffioul@gmail.com> parents: 17861 diff changeset	336
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	337 interrupt_handler
31771 21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations. Rik <rik@octave.org> parents: 31706 diff changeset	338 ignore_interrupts ()
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	339 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	340 interrupt_handler retval;
17958 1adf3710bb68 Working CTRL-C handling implementation for Win32. Michael Goffioul <michael.goffioul@gmail.com> parents: 17861 diff changeset	341
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	342 retval.int_handler = set_signal_handler ("SIGINT", SIG_IGN);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	343 retval.brk_handler = set_signal_handler ("SIGBREAK", SIG_IGN);
21941 1d23b75cbcd1 hide signal.h from C++ sources John W. Eaton <jwe@octave.org> parents: 21938 diff changeset	344
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	345 return retval;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	346 }
11555 f359cfc6e24d sighandlers.cc: wait for children in octave_signal_handler, not sigchld_handler John W. Eaton <jwe@octave.org> parents: 11525 diff changeset	347
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	348 interrupt_handler
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	349 set_interrupt_handler (const volatile interrupt_handler& h,
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	350 bool restart_syscalls)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	351 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	352 interrupt_handler retval;
5142 0f9108f298ab [project @ 2005-02-12 02:29:34 by jwe] jwe parents: 5128 diff changeset	353
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	354 retval.int_handler = set_signal_handler ("SIGINT", h.int_handler,
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	355 restart_syscalls);
5142 0f9108f298ab [project @ 2005-02-12 02:29:34 by jwe] jwe parents: 5128 diff changeset	356
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	357 retval.brk_handler = set_signal_handler ("SIGBREAK", h.brk_handler,
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	358 restart_syscalls);
2536 1d63e820ee13 [project @ 1996-11-19 20:34:29 by jwe] jwe parents: 2512 diff changeset	359
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	360 return retval;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	361 }
5451 ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe] jwe parents: 5333 diff changeset	362
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	363 // Install all the handlers for the signals we might care about.
1373 cea4101a2f18 [project @ 1995-09-07 07:19:58 by jwe] jwe parents: 1358 diff changeset	364
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	365 void
31771 21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations. Rik <rik@octave.org> parents: 31706 diff changeset	366 install_signal_handlers ()
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	367 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	368 if (! signals_caught)
31846 5f0b8101234e Remove several race conditions with signal handler (bug #61370). Reinhard Resch <r_resch@a1.net> parents: 31771 diff changeset	369 signals_caught = new std::atomic<bool> [octave_num_signals ()];
5451 ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe] jwe parents: 5333 diff changeset	370
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	371 for (int i = 0; i < octave_num_signals (); i++)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	372 signals_caught[i] = false;
3162 7c96e85c76db [project @ 1998-04-08 18:19:35 by jwe] jwe parents: 3018 diff changeset	373
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	374 // Interrupt signals.
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	375
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	376 catch_interrupts ();
5144 25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe] jwe parents: 5142 diff changeset	377
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	378 // Program Error signals. These are most likely unrecoverable for
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	379 // us.
1446 5135dac66704 [project @ 1995-09-19 22:34:06 by jwe] jwe parents: 1395 diff changeset	380
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	381 set_signal_handler ("SIGABRT", deadly_sig_handler);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	382 set_signal_handler ("SIGBUS", deadly_sig_handler);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	383 set_signal_handler ("SIGEMT", deadly_sig_handler);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	384 set_signal_handler ("SIGILL", deadly_sig_handler);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	385 // SIGIOT is normally another name for SIGABRT.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	386 set_signal_handler ("SIGIOT", deadly_sig_handler);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	387 set_signal_handler ("SIGSEGV", deadly_sig_handler);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	388 set_signal_handler ("SIGSYS", deadly_sig_handler);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	389 set_signal_handler ("SIGTRAP", deadly_sig_handler);
1230 92609e161b29 [project @ 1995-04-10 01:08:57 by jwe] jwe parents: 1009 diff changeset	390
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	391 // Handle SIGFPE separately.
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	392
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	393 set_signal_handler ("SIGFPE", fpe_sig_handler);
3281 aaaa20d31a5f [project @ 1999-10-13 07:02:46 by jwe] jwe parents: 3252 diff changeset	394
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	395 // Handle other signals for which the default action is to terminate
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	396 // the program.
4172 2e94b2abfe6d [project @ 2002-11-12 21:14:04 by jwe] jwe parents: 4153 diff changeset	397
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	398 // Termination signals.
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	399
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	400 set_signal_handler ("SIGHUP", generic_sig_handler);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	401 set_signal_handler ("SIGQUIT", generic_sig_handler);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	402 set_signal_handler ("SIGTERM", generic_sig_handler);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: 7481 diff changeset	403
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	404 // Alarm signals.
7481 78f3811155f7 use exceptions in liboctave error handler John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	405
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	406 set_signal_handler ("SIGALRM", generic_sig_handler);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	407 set_signal_handler ("SIGVTALRM", generic_sig_handler);
4793 a62215ab8a03 [project @ 2004-02-20 20:59:34 by jwe] jwe parents: 4791 diff changeset	408
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	409 // I/O signals.
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	410
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	411 set_signal_handler ("SIGLOST", generic_sig_handler);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	412 set_signal_handler ("SIGPIPE", generic_sig_handler);
4787 02c748eb2ddc [project @ 2004-02-18 21:20:26 by jwe] jwe parents: 4675 diff changeset	413
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	414 // Job control signals. We only recognize signals about child
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	415 // processes.
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	416
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	417 set_signal_handler ("SIGCHLD", generic_sig_handler);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	418 set_signal_handler ("SIGCLD", generic_sig_handler);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	419
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	420 // Resource limit signals.
5451 ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe] jwe parents: 5333 diff changeset	421
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	422 // FIXME: does it really make sense to try to handle the CPU limit
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	423 // signal?
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	424
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	425 set_signal_handler ("SIGXCPU", generic_sig_handler);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	426 set_signal_handler ("SIGXFSZ", generic_sig_handler);
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	427
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	428 // User signals.
2554 f7e3d23f0a8f [project @ 1996-11-21 01:41:57 by jwe] jwe parents: 2536 diff changeset	429
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	430 set_signal_handler ("SIGUSR1", generic_sig_handler);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	431 set_signal_handler ("SIGUSR2", generic_sig_handler);
2705 18395aaeafb7 [project @ 1997-02-20 04:56:43 by jwe] jwe parents: 2693 diff changeset	432
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	433 // This does nothing on Windows systems.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	434 octave_create_interrupt_watcher_thread (generic_sig_handler);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	435 }
635 5338832d2cf6 [project @ 1994-08-23 17:57:20 by jwe] jwe parents: 529 diff changeset	436
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	437 static void
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	438 set_sig_struct_field (octave_scalar_map& m, const char *signame)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	439 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	440 int signum;
21941 1d23b75cbcd1 hide signal.h from C++ sources John W. Eaton <jwe@octave.org> parents: 21938 diff changeset	441
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	442 // The names in the struct do not include the leading "SIG" prefix.
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	443
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	444 if (octave_get_sig_number (signame, &signum))
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	445 m.assign (&signame[3], signum);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	446 }
3174 390d5e396682 [project @ 1998-05-04 16:36:17 by jwe] jwe parents: 3162 diff changeset	447
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	448 static octave_scalar_map
31771 21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations. Rik <rik@octave.org> parents: 31706 diff changeset	449 make_sig_struct ()
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	450 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	451 octave_scalar_map m;
3174 390d5e396682 [project @ 1998-05-04 16:36:17 by jwe] jwe parents: 3162 diff changeset	452
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	453 set_sig_struct_field (m, "SIGABRT");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	454 set_sig_struct_field (m, "SIGALRM");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	455 set_sig_struct_field (m, "SIGBUS");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	456 set_sig_struct_field (m, "SIGCHLD");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	457 set_sig_struct_field (m, "SIGCLD");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	458 set_sig_struct_field (m, "SIGCONT");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	459 set_sig_struct_field (m, "SIGEMT");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	460 set_sig_struct_field (m, "SIGFPE");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	461 set_sig_struct_field (m, "SIGHUP");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	462 set_sig_struct_field (m, "SIGILL");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	463 set_sig_struct_field (m, "SIGINFO");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	464 set_sig_struct_field (m, "SIGINT");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	465 set_sig_struct_field (m, "SIGIO");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	466 set_sig_struct_field (m, "SIGIOT");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	467 set_sig_struct_field (m, "SIGKILL");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	468 set_sig_struct_field (m, "SIGLOST");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	469 set_sig_struct_field (m, "SIGPIPE");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	470 set_sig_struct_field (m, "SIGPOLL");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	471 set_sig_struct_field (m, "SIGPROF");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	472 set_sig_struct_field (m, "SIGPWR");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	473 set_sig_struct_field (m, "SIGQUIT");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	474 set_sig_struct_field (m, "SIGSEGV");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	475 set_sig_struct_field (m, "SIGSTKFLT");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	476 set_sig_struct_field (m, "SIGSTOP");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	477 set_sig_struct_field (m, "SIGSYS");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	478 set_sig_struct_field (m, "SIGTERM");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	479 set_sig_struct_field (m, "SIGTRAP");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	480 set_sig_struct_field (m, "SIGTSTP");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	481 set_sig_struct_field (m, "SIGTTIN");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	482 set_sig_struct_field (m, "SIGTTOU");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	483 set_sig_struct_field (m, "SIGUNUSED");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	484 set_sig_struct_field (m, "SIGURG");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	485 set_sig_struct_field (m, "SIGUSR1");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	486 set_sig_struct_field (m, "SIGUSR2");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	487 set_sig_struct_field (m, "SIGVTALRM");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	488 set_sig_struct_field (m, "SIGWINCH");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	489 set_sig_struct_field (m, "SIGXCPU");
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	490 set_sig_struct_field (m, "SIGXFSZ");
4294 755f6509bb01 [project @ 2003-01-11 04:01:53 by jwe] jwe parents: 4233 diff changeset	491
31607 aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	492 return m;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros. Rik <rik@octave.org> parents: 31605 diff changeset	493 }
29958 32c3a5805893 move DEFUN and DEFMETHOD functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 29359 diff changeset	494
5780 cbf717bf8150 [project @ 2006-04-27 20:02:30 by jwe] jwe parents: 5775 diff changeset	495 DEFUN (SIG, args, ,
21966 112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	496 doc: /* -- texinfo --
30888 32d2b6604a9f doc: Ensure documentation lists output argument when it exists for functions in libinterp/ Rik <rik@octave.org> parents: 30588 diff changeset	497 @deftypefn {} {@var{S} =} SIG ()
21966 112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	498 Return a structure containing Unix signal names and their defined values.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	499 @end deftypefn */)
5780 cbf717bf8150 [project @ 2006-04-27 20:02:30 by jwe] jwe parents: 5775 diff changeset	500 {
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20791 diff changeset	501 if (args.length () != 0)
5823 080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe] jwe parents: 5794 diff changeset	502 print_usage ();
5780 cbf717bf8150 [project @ 2006-04-27 20:02:30 by jwe] jwe parents: 5775 diff changeset	503
29961 7d6709900da7 eliminate octave:: namespace tags in DEFUN and DEFMETHOD and more John W. Eaton <jwe@octave.org> parents: 29960 diff changeset	504 static octave_scalar_map m = make_sig_struct ();
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20791 diff changeset	505
20939 b17fda023ca6 maint: Use new C++ archetype in more files. Rik <rik@octave.org> parents: 20853 diff changeset	506 return ovl (m);
5780 cbf717bf8150 [project @ 2006-04-27 20:02:30 by jwe] jwe parents: 5775 diff changeset	507 }
cbf717bf8150 [project @ 2006-04-27 20:02:30 by jwe] jwe parents: 5775 diff changeset	508
12827 8c6d71520920 codesprint: new tests for sysdep.cc functions John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	509 /*
14429 eff4a5933e28 Update %!tests in src/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14338 diff changeset	510 %!assert (isstruct (SIG ()))
eff4a5933e28 Update %!tests in src/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14338 diff changeset	511 %!assert (! isempty (SIG ()))
eff4a5933e28 Update %!tests in src/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14338 diff changeset	512
eff4a5933e28 Update %!tests in src/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14338 diff changeset	513 %!error SIG (1)
12827 8c6d71520920 codesprint: new tests for sysdep.cc functions John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	514 */
8c6d71520920 codesprint: new tests for sysdep.cc functions John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	515
5794 1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe] jwe parents: 5780 diff changeset	516 DEFUN (debug_on_interrupt, args, nargout,
21966 112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	517 doc: /* -- texinfo --
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	518 @deftypefn {} {@var{val} =} debug_on_interrupt ()
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	519 @deftypefnx {} {@var{old_val} =} debug_on_interrupt (@var{new_val})
30588 ed17822e7662 doc: Always have a return value for functions which set internal variables (bug #61681) Rik <rik@octave.org> parents: 30564 diff changeset	520 @deftypefnx {} {@var{old_val} =} debug_on_interrupt (@var{new_val}, "local")
21966 112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	521 Query or set the internal variable that controls whether Octave will try
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	522 to enter debugging mode when it receives an interrupt signal (typically
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	523 generated with @kbd{C-c}).
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	524
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	525 If a second interrupt signal is received before reaching the debugging mode,
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	526 a normal interrupt will occur.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	527
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	528 When called from inside a function with the @qcode{"local"} option, the
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	529 variable is changed locally for the function and any subroutines it calls.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	530 The original variable value is restored when exiting the function.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	531 @seealso{debug_on_error, debug_on_warning}
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	532 @end deftypefn */)
4449 e2c91da0aa16 [project @ 2003-07-09 02:21:11 by jwe] jwe parents: 4429 diff changeset	533 {
29961 7d6709900da7 eliminate octave:: namespace tags in DEFUN and DEFMETHOD and more John W. Eaton <jwe@octave.org> parents: 29960 diff changeset	534 return set_internal_variable (Vdebug_on_interrupt, args, nargout,
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	535 "debug_on_interrupt");
4449 e2c91da0aa16 [project @ 2003-07-09 02:21:11 by jwe] jwe parents: 4429 diff changeset	536 }
e2c91da0aa16 [project @ 2003-07-09 02:21:11 by jwe] jwe parents: 4429 diff changeset	537
12827 8c6d71520920 codesprint: new tests for sysdep.cc functions John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	538 /*
8c6d71520920 codesprint: new tests for sysdep.cc functions John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	539 %!test
12832 03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	540 %! orig_val = debug_on_interrupt ();
03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	541 %! old_val = debug_on_interrupt (! orig_val);
03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	542 %! assert (orig_val, old_val);
03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	543 %! assert (debug_on_interrupt (), ! orig_val);
03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	544 %! debug_on_interrupt (orig_val);
03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	545 %! assert (debug_on_interrupt (), orig_val);
14429 eff4a5933e28 Update %!tests in src/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14338 diff changeset	546
28930 2883b3d08b7e maint: Remove unnecessary parentheses bracketing %!error BIST tests. Rik <rik@octave.org> parents: 27923 diff changeset	547 %!error debug_on_interrupt (1, 2)
12827 8c6d71520920 codesprint: new tests for sysdep.cc functions John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	548 */
8c6d71520920 codesprint: new tests for sysdep.cc functions John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	549
5794 1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe] jwe parents: 5780 diff changeset	550 DEFUN (sighup_dumps_octave_core, args, nargout,
21966 112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	551 doc: /* -- texinfo --
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	552 @deftypefn {} {@var{val} =} sighup_dumps_octave_core ()
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	553 @deftypefnx {} {@var{old_val} =} sighup_dumps_octave_core (@var{new_val})
30588 ed17822e7662 doc: Always have a return value for functions which set internal variables (bug #61681) Rik <rik@octave.org> parents: 30564 diff changeset	554 @deftypefnx {} {@var{old_val} =} sighup_dumps_octave_core (@var{new_val}, "local")
21966 112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	555 Query or set the internal variable that controls whether Octave tries
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	556 to save all current variables to the file @file{octave-workspace} if it
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	557 receives a hangup signal.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	558
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	559 When called from inside a function with the @qcode{"local"} option, the
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	560 variable is changed locally for the function and any subroutines it calls.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	561 The original variable value is restored when exiting the function.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	562 @end deftypefn */)
4185 8f6d418d31c3 [project @ 2002-11-15 23:22:03 by jwe] jwe parents: 4182 diff changeset	563 {
29961 7d6709900da7 eliminate octave:: namespace tags in DEFUN and DEFMETHOD and more John W. Eaton <jwe@octave.org> parents: 29960 diff changeset	564 return set_internal_variable (Vsighup_dumps_octave_core,
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	565 args, nargout,
6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	566 "sighup_dumps_octave_core");
5794 1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe] jwe parents: 5780 diff changeset	567 }
4294 755f6509bb01 [project @ 2003-01-11 04:01:53 by jwe] jwe parents: 4233 diff changeset	568
12827 8c6d71520920 codesprint: new tests for sysdep.cc functions John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	569 /*
8c6d71520920 codesprint: new tests for sysdep.cc functions John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	570 %!test
12832 03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	571 %! orig_val = sighup_dumps_octave_core ();
03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	572 %! old_val = sighup_dumps_octave_core (! orig_val);
03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	573 %! assert (orig_val, old_val);
03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	574 %! assert (sighup_dumps_octave_core (), ! orig_val);
03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	575 %! sighup_dumps_octave_core (orig_val);
03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	576 %! assert (sighup_dumps_octave_core (), orig_val);
14429 eff4a5933e28 Update %!tests in src/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14338 diff changeset	577
28930 2883b3d08b7e maint: Remove unnecessary parentheses bracketing %!error BIST tests. Rik <rik@octave.org> parents: 27923 diff changeset	578 %!error sighup_dumps_octave_core (1, 2)
12827 8c6d71520920 codesprint: new tests for sysdep.cc functions John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	579 */
8c6d71520920 codesprint: new tests for sysdep.cc functions John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	580
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	581 DEFUN (sigquit_dumps_octave_core, args, nargout,
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	582 doc: /* -- texinfo --
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	583 @deftypefn {} {@var{val} =} sigquit_dumps_octave_core ()
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	584 @deftypefnx {} {@var{old_val} =} sigquit_dumps_octave_core (@var{new_val})
30588 ed17822e7662 doc: Always have a return value for functions which set internal variables (bug #61681) Rik <rik@octave.org> parents: 30564 diff changeset	585 @deftypefnx {} {@var{old_val} =} sigquit_dumps_octave_core (@var{new_val}, "local")
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	586 Query or set the internal variable that controls whether Octave tries
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	587 to save all current variables to the file @file{octave-workspace} if it
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	588 receives a quit signal.
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	589
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	590 When called from inside a function with the @qcode{"local"} option, the
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	591 variable is changed locally for the function and any subroutines it calls.
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	592 The original variable value is restored when exiting the function.
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	593 @end deftypefn */)
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	594 {
29961 7d6709900da7 eliminate octave:: namespace tags in DEFUN and DEFMETHOD and more John W. Eaton <jwe@octave.org> parents: 29960 diff changeset	595 return set_internal_variable (Vsigquit_dumps_octave_core,
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	596 args, nargout,
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	597 "sigquit_dumps_octave_core");
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	598 }
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	599
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	600 /*
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	601 %!test
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	602 %! orig_val = sigquit_dumps_octave_core ();
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	603 %! old_val = sigquit_dumps_octave_core (! orig_val);
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	604 %! assert (orig_val, old_val);
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	605 %! assert (sigquit_dumps_octave_core (), ! orig_val);
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	606 %! sigquit_dumps_octave_core (orig_val);
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	607 %! assert (sigquit_dumps_octave_core (), orig_val);
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	608
28930 2883b3d08b7e maint: Remove unnecessary parentheses bracketing %!error BIST tests. Rik <rik@octave.org> parents: 27923 diff changeset	609 %!error sigquit_dumps_octave_core (1, 2)
24520 c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	610 */
c5c11b07598a refactor signal handling (bug #52757) John W. Eaton <jwe@octave.org> parents: 24118 diff changeset	611
5794 1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe] jwe parents: 5780 diff changeset	612 DEFUN (sigterm_dumps_octave_core, args, nargout,
21966 112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	613 doc: /* -- texinfo --
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	614 @deftypefn {} {@var{val} =} sigterm_dumps_octave_core ()
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	615 @deftypefnx {} {@var{old_val} =} sigterm_dumps_octave_core (@var{new_val})
30588 ed17822e7662 doc: Always have a return value for functions which set internal variables (bug #61681) Rik <rik@octave.org> parents: 30564 diff changeset	616 @deftypefnx {} {@var{old_val} =} sigterm_dumps_octave_core (@var{new_val}, "local")
21966 112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	617 Query or set the internal variable that controls whether Octave tries
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	618 to save all current variables to the file @file{octave-workspace} if it
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	619 receives a terminate signal.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	620
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	621 When called from inside a function with the @qcode{"local"} option, the
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	622 variable is changed locally for the function and any subroutines it calls.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	623 The original variable value is restored when exiting the function.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21941 diff changeset	624 @end deftypefn */)
5794 1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe] jwe parents: 5780 diff changeset	625 {
29961 7d6709900da7 eliminate octave:: namespace tags in DEFUN and DEFMETHOD and more John W. Eaton <jwe@octave.org> parents: 29960 diff changeset	626 return set_internal_variable (Vsigterm_dumps_octave_core,
22051 6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	627 args, nargout,
6db928d06b07 move signal functions into octave namespace John W. Eaton <jwe@octave.org> parents: 22049 diff changeset	628 "sigterm_dumps_octave_core");
4185 8f6d418d31c3 [project @ 2002-11-15 23:22:03 by jwe] jwe parents: 4182 diff changeset	629 }
12827 8c6d71520920 codesprint: new tests for sysdep.cc functions John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	630
8c6d71520920 codesprint: new tests for sysdep.cc functions John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	631 /*
8c6d71520920 codesprint: new tests for sysdep.cc functions John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	632 %!test
12832 03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	633 %! orig_val = sigterm_dumps_octave_core ();
03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	634 %! old_val = sigterm_dumps_octave_core (! orig_val);
03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	635 %! assert (orig_val, old_val);
03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	636 %! assert (sigterm_dumps_octave_core (), ! orig_val);
03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	637 %! sigterm_dumps_octave_core (orig_val);
03f125c0fb7b codesprint: improve tests John W. Eaton <jwe@octave.org> parents: 12827 diff changeset	638 %! assert (sigterm_dumps_octave_core (), orig_val);
14429 eff4a5933e28 Update %!tests in src/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14338 diff changeset	639
28930 2883b3d08b7e maint: Remove unnecessary parentheses bracketing %!error BIST tests. Rik <rik@octave.org> parents: 27923 diff changeset	640 %!error sigterm_dumps_octave_core (1, 2)
12827 8c6d71520920 codesprint: new tests for sysdep.cc functions John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	641 */
29958 32c3a5805893 move DEFUN and DEFMETHOD functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 29359 diff changeset	642
31605 e88a07dec498 maint: Use macros to begin/end C++ namespaces. Rik <rik@octave.org> parents: 31105 diff changeset	643 OCTAVE_END_NAMESPACE(octave)

Mercurial > octave

annotate libinterp/corefcn/sighandlers.cc @ 31846:5f0b8101234e