Mercurial > octave
view libinterp/corefcn/sighandlers.cc @ 31605:e88a07dec498 stable
maint: Use macros to begin/end C++ namespaces.
* oct-conf-post-public.in.h: Define two macros (OCTAVE_BEGIN_NAMESPACE,
OCTAVE_END_NAMESPACE) that can be used to start/end a namespace.
* mk-opts.pl, build-env.h, build-env.in.cc, __betainc__.cc, __contourc__.cc,
__dsearchn__.cc, __eigs__.cc, __expint__.cc, __ftp__.cc, __gammainc__.cc,
__ichol__.cc, __ilu__.cc, __isprimelarge__.cc, __lin_interpn__.cc,
__magick_read__.cc, __pchip_deriv__.cc, __qp__.cc, amd.cc, auto-shlib.cc,
auto-shlib.h, balance.cc, base-text-renderer.cc, base-text-renderer.h,
besselj.cc, bitfcns.cc, bsxfun.cc, c-file-ptr-stream.cc, c-file-ptr-stream.h,
call-stack.cc, call-stack.h, ccolamd.cc, cellfun.cc, chol.cc, colamd.cc,
colloc.cc, conv2.cc, daspk.cc, dasrt.cc, dassl.cc, data.cc, data.h, debug.cc,
defaults.cc, defaults.h, defun-int.h, defun.cc, det.cc, dirfns.cc, display.cc,
display.h, dlmread.cc, dmperm.cc, dot.cc, dynamic-ld.cc, dynamic-ld.h, eig.cc,
ellipj.cc, environment.cc, environment.h, error.cc, error.h, errwarn.h,
event-manager.cc, event-manager.h, event-queue.cc, event-queue.h, fcn-info.cc,
fcn-info.h, fft.cc, fft2.cc, fftn.cc, file-io.cc, filter.cc, find.cc,
ft-text-renderer.cc, ft-text-renderer.h, gcd.cc, getgrent.cc, getpwent.cc,
getrusage.cc, givens.cc, gl-render.cc, gl-render.h, gl2ps-print.cc,
gl2ps-print.h, graphics-toolkit.cc, graphics-toolkit.h, graphics.cc,
graphics.in.h, gsvd.cc, gtk-manager.cc, gtk-manager.h, hash.cc, help.cc,
help.h, hess.cc, hex2num.cc, hook-fcn.cc, hook-fcn.h, input.cc, input.h,
interpreter-private.cc, interpreter-private.h, interpreter.cc, interpreter.h,
inv.cc, jsondecode.cc, jsonencode.cc, kron.cc, latex-text-renderer.cc,
latex-text-renderer.h, load-path.cc, load-path.h, load-save.cc, load-save.h,
lookup.cc, ls-ascii-helper.cc, ls-ascii-helper.h, ls-oct-text.cc, ls-utils.cc,
ls-utils.h, lsode.cc, lu.cc, mappers.cc, matrix_type.cc, max.cc, mex-private.h,
mex.cc, mgorth.cc, nproc.cc, oct-fstrm.cc, oct-fstrm.h, oct-hdf5-types.cc,
oct-hdf5-types.h, oct-hist.cc, oct-hist.h, oct-iostrm.cc, oct-iostrm.h,
oct-opengl.h, oct-prcstrm.cc, oct-prcstrm.h, oct-procbuf.cc, oct-procbuf.h,
oct-process.cc, oct-process.h, oct-stdstrm.h, oct-stream.cc, oct-stream.h,
oct-strstrm.cc, oct-strstrm.h, oct-tex-lexer.in.ll, oct-tex-parser.yy,
ordqz.cc, ordschur.cc, pager.cc, pager.h, pinv.cc, pow2.cc, pr-flt-fmt.cc,
pr-output.cc, procstream.cc, procstream.h, psi.cc, qr.cc, quad.cc, quadcc.cc,
qz.cc, rand.cc, rcond.cc, regexp.cc, schur.cc, settings.cc, settings.h,
sighandlers.cc, sighandlers.h, sparse-xdiv.cc, sparse-xdiv.h, sparse-xpow.cc,
sparse-xpow.h, sparse.cc, spparms.cc, sqrtm.cc, stack-frame.cc, stack-frame.h,
stream-euler.cc, strfind.cc, strfns.cc, sub2ind.cc, svd.cc, sylvester.cc,
symbfact.cc, syminfo.cc, syminfo.h, symrcm.cc, symrec.cc, symrec.h,
symscope.cc, symscope.h, symtab.cc, symtab.h, syscalls.cc, sysdep.cc, sysdep.h,
text-engine.cc, text-engine.h, text-renderer.cc, text-renderer.h, time.cc,
toplev.cc, tril.cc, tsearch.cc, typecast.cc, url-handle-manager.cc,
url-handle-manager.h, urlwrite.cc, utils.cc, utils.h, variables.cc,
variables.h, xdiv.cc, xdiv.h, xnorm.cc, xnorm.h, xpow.cc, xpow.h,
__delaunayn__.cc, __fltk_uigetfile__.cc, __glpk__.cc, __init_fltk__.cc,
__init_gnuplot__.cc, __ode15__.cc, __voronoi__.cc, audiodevinfo.cc,
audioread.cc, convhulln.cc, fftw.cc, gzip.cc, mk-build-env-features.sh,
mk-builtins.pl, cdef-class.cc, cdef-class.h, cdef-fwd.h, cdef-manager.cc,
cdef-manager.h, cdef-method.cc, cdef-method.h, cdef-object.cc, cdef-object.h,
cdef-package.cc, cdef-package.h, cdef-property.cc, cdef-property.h,
cdef-utils.cc, cdef-utils.h, ov-base.cc, ov-base.h, ov-bool-mat.cc,
ov-builtin.h, ov-cell.cc, ov-class.cc, ov-class.h, ov-classdef.cc,
ov-classdef.h, ov-complex.cc, ov-fcn-handle.cc, ov-fcn-handle.h, ov-fcn.h,
ov-java.cc, ov-java.h, ov-mex-fcn.h, ov-null-mat.cc, ov-oncleanup.cc,
ov-struct.cc, ov-typeinfo.cc, ov-typeinfo.h, ov-usr-fcn.cc, ov-usr-fcn.h,
ov.cc, ov.h, octave.cc, octave.h, mk-ops.sh, op-b-b.cc, op-b-bm.cc,
op-b-sbm.cc, op-bm-b.cc, op-bm-bm.cc, op-bm-sbm.cc, op-cdm-cdm.cc, op-cell.cc,
op-chm.cc, op-class.cc, op-cm-cm.cc, op-cm-cs.cc, op-cm-m.cc, op-cm-s.cc,
op-cm-scm.cc, op-cm-sm.cc, op-cs-cm.cc, op-cs-cs.cc, op-cs-m.cc, op-cs-s.cc,
op-cs-scm.cc, op-cs-sm.cc, op-dm-dm.cc, op-dm-scm.cc, op-dm-sm.cc,
op-dm-template.cc, op-dms-template.cc, op-fcdm-fcdm.cc, op-fcm-fcm.cc,
op-fcm-fcs.cc, op-fcm-fm.cc, op-fcm-fs.cc, op-fcn.cc, op-fcs-fcm.cc,
op-fcs-fcs.cc, op-fcs-fm.cc, op-fcs-fs.cc, op-fdm-fdm.cc, op-fm-fcm.cc,
op-fm-fcs.cc, op-fm-fm.cc, op-fm-fs.cc, op-fs-fcm.cc, op-fs-fcs.cc,
op-fs-fm.cc, op-fs-fs.cc, op-i16-i16.cc, op-i32-i32.cc, op-i64-i64.cc,
op-i8-i8.cc, op-int-concat.cc, op-m-cm.cc, op-m-cs.cc, op-m-m.cc, op-m-s.cc,
op-m-scm.cc, op-m-sm.cc, op-mi.cc, op-pm-pm.cc, op-pm-scm.cc, op-pm-sm.cc,
op-pm-template.cc, op-range.cc, op-s-cm.cc, op-s-cs.cc, op-s-m.cc, op-s-s.cc,
op-s-scm.cc, op-s-sm.cc, op-sbm-b.cc, op-sbm-bm.cc, op-sbm-sbm.cc,
op-scm-cm.cc, op-scm-cs.cc, op-scm-m.cc, op-scm-s.cc, op-scm-scm.cc,
op-scm-sm.cc, op-sm-cm.cc, op-sm-cs.cc, op-sm-m.cc, op-sm-s.cc, op-sm-scm.cc,
op-sm-sm.cc, op-str-m.cc, op-str-s.cc, op-str-str.cc, op-struct.cc,
op-ui16-ui16.cc, op-ui32-ui32.cc, op-ui64-ui64.cc, op-ui8-ui8.cc, ops.h,
anon-fcn-validator.cc, anon-fcn-validator.h, bp-table.cc, bp-table.h,
comment-list.cc, comment-list.h, filepos.h, lex.h, lex.ll, oct-lvalue.cc,
oct-lvalue.h, oct-parse.yy, parse.h, profiler.cc, profiler.h,
pt-anon-scopes.cc, pt-anon-scopes.h, pt-arg-list.cc, pt-arg-list.h,
pt-args-block.cc, pt-args-block.h, pt-array-list.cc, pt-array-list.h,
pt-assign.cc, pt-assign.h, pt-binop.cc, pt-binop.h, pt-bp.cc, pt-bp.h,
pt-cbinop.cc, pt-cbinop.h, pt-cell.cc, pt-cell.h, pt-check.cc, pt-check.h,
pt-classdef.cc, pt-classdef.h, pt-cmd.h, pt-colon.cc, pt-colon.h, pt-const.cc,
pt-const.h, pt-decl.cc, pt-decl.h, pt-eval.cc, pt-eval.h, pt-except.cc,
pt-except.h, pt-exp.cc, pt-exp.h, pt-fcn-handle.cc, pt-fcn-handle.h, pt-id.cc,
pt-id.h, pt-idx.cc, pt-idx.h, pt-jump.h, pt-loop.cc, pt-loop.h, pt-mat.cc,
pt-mat.h, pt-misc.cc, pt-misc.h, pt-pr-code.cc, pt-pr-code.h, pt-select.cc,
pt-select.h, pt-spmd.cc, pt-spmd.h, pt-stmt.cc, pt-stmt.h, pt-tm-const.cc,
pt-tm-const.h, pt-unop.cc, pt-unop.h, pt-vm-eval.cc, pt-walk.cc, pt-walk.h,
pt.cc, pt.h, token.cc, token.h, Range.cc, Range.h, idx-vector.cc, idx-vector.h,
range-fwd.h, CollocWt.cc, CollocWt.h, aepbalance.cc, aepbalance.h, chol.cc,
chol.h, gepbalance.cc, gepbalance.h, gsvd.cc, gsvd.h, hess.cc, hess.h,
lo-mappers.cc, lo-mappers.h, lo-specfun.cc, lo-specfun.h, lu.cc, lu.h,
oct-convn.cc, oct-convn.h, oct-fftw.cc, oct-fftw.h, oct-norm.cc, oct-norm.h,
oct-rand.cc, oct-rand.h, oct-spparms.cc, oct-spparms.h, qr.cc, qr.h, qrp.cc,
qrp.h, randgamma.cc, randgamma.h, randmtzig.cc, randmtzig.h, randpoisson.cc,
randpoisson.h, schur.cc, schur.h, sparse-chol.cc, sparse-chol.h, sparse-lu.cc,
sparse-lu.h, sparse-qr.cc, sparse-qr.h, svd.cc, svd.h, child-list.cc,
child-list.h, dir-ops.cc, dir-ops.h, file-ops.cc, file-ops.h, file-stat.cc,
file-stat.h, lo-sysdep.cc, lo-sysdep.h, lo-sysinfo.cc, lo-sysinfo.h,
mach-info.cc, mach-info.h, oct-env.cc, oct-env.h, oct-group.cc, oct-group.h,
oct-password.cc, oct-password.h, oct-syscalls.cc, oct-syscalls.h, oct-time.cc,
oct-time.h, oct-uname.cc, oct-uname.h, action-container.cc, action-container.h,
base-list.h, cmd-edit.cc, cmd-edit.h, cmd-hist.cc, cmd-hist.h, f77-fcn.h,
file-info.cc, file-info.h, lo-array-errwarn.cc, lo-array-errwarn.h, lo-hash.cc,
lo-hash.h, lo-ieee.h, lo-regexp.cc, lo-regexp.h, lo-utils.cc, lo-utils.h,
oct-base64.cc, oct-base64.h, oct-glob.cc, oct-glob.h, oct-inttypes.h,
oct-mutex.cc, oct-mutex.h, oct-refcount.h, oct-shlib.cc, oct-shlib.h,
oct-sparse.cc, oct-sparse.h, oct-string.h, octave-preserve-stream-state.h,
pathsearch.cc, pathsearch.h, quit.cc, quit.h, unwind-prot.cc, unwind-prot.h,
url-transfer.cc, url-transfer.h : Use new macros to begin/end C++ namespaces.
author | Rik <rik@octave.org> |
---|---|
date | Thu, 01 Dec 2022 14:23:45 -0800 |
parents | 670a0d878af1 |
children | aac27ad79be6 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 1993-2022 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // This file is part of Octave. // // Octave is free software: you can redistribute it and/or modify it // under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Octave is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Octave; see the file COPYING. If not, see // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include <csignal> #include <cstdlib> #include <iostream> #include <new> #if defined (OCTAVE_USE_WINDOWS_API) # define WIN32_LEAN_AND_MEAN # include <windows.h> #endif #include "child-list.h" #include "cmd-edit.h" #include "oct-syscalls.h" #include "quit.h" #include "signal-wrappers.h" #include "defun.h" #include "error.h" #include "input.h" #include "interpreter-private.h" #include "interpreter.h" #include "load-save.h" #include "octave.h" #include "oct-map.h" #include "pager.h" #include "sighandlers.h" #include "sysdep.h" #include "utils.h" #include "variables.h" OCTAVE_BEGIN_NAMESPACE(octave) // Nonzero means we have already printed a message for this series of // SIGPIPES. We assume that the writer will eventually give up. int pipe_handler_error_count = 0; // TRUE means we can be interrupted. bool can_interrupt = false; // TRUE means we should try to enter the debugger on SIGINT. bool Vdebug_on_interrupt = false; // Allow users to avoid writing octave-workspace for SIGHUP (sent by // closing gnome-terminal, for example). Note that this variable has // no effect if Vcrash_dumps_octave_core is FALSE. static bool Vsighup_dumps_octave_core = true; // Similar to Vsighup_dumps_octave_core, but for SIGQUIT signal. static bool Vsigquit_dumps_octave_core = true; // Similar to Vsighup_dumps_octave_core, but for SIGTERM signal. static bool Vsigterm_dumps_octave_core = true; // List of signals we have caught since last call to signal_handler. static bool *signals_caught = nullptr; static void my_friendly_exit (int sig, bool save_vars = true) { std::cerr << "fatal: caught signal " << octave_strsignal_wrapper (sig) << " -- stopping myself..." << std::endl; if (save_vars) { load_save_system& load_save_sys = __get_load_save_system__ (); load_save_sys.dump_octave_core (); } sysdep_cleanup (); throw exit_exception (1); } // Called from octave_quit () to actually do something about the signals // we have caught. void respond_to_pending_signals (void) { // The list of signals is relatively short, so we will just go // linearly through the list. // Interrupt signals are currently handled separately. static int sigint; static const bool have_sigint = octave_get_sig_number ("SIGINT", &sigint); static int sigbreak; static const bool have_sigbreak = octave_get_sig_number ("SIGBREAK", &sigbreak); // Termination signals. static int sighup; static const bool have_sighup = octave_get_sig_number ("SIGHUP", &sighup); static int sigquit; static const bool have_sigquit = octave_get_sig_number ("SIGQUIT", &sigquit); static int sigterm; static const bool have_sigterm = octave_get_sig_number ("SIGTERM", &sigterm); // Alarm signals. static int sigalrm; static const bool have_sigalrm = octave_get_sig_number ("SIGALRM", &sigalrm); static int sigvtalrm; static const bool have_sigvtalrm = octave_get_sig_number ("SIGVTALRM", &sigvtalrm); // I/O signals. static int sigio; static const bool have_sigio = octave_get_sig_number ("SIGIO", &sigio); static int siglost; static const bool have_siglost = octave_get_sig_number ("SIGLOST", &siglost); static int sigpipe; static const bool have_sigpipe = octave_get_sig_number ("SIGPIPE", &sigpipe); // Job control signals. static int sigchld; static const bool have_sigchld = octave_get_sig_number ("SIGCHLD", &sigchld); static int sigcld; static const bool have_sigcld = octave_get_sig_number ("SIGCLD", &sigcld); // Resource limit signals. static int sigxcpu; static const bool have_sigxcpu = octave_get_sig_number ("SIGXCPU", &sigxcpu); static int sigxfsz; static const bool have_sigxfsz = octave_get_sig_number ("SIGXFSZ", &sigxfsz); // User signals. static int sigusr1; static const bool have_sigusr1 = octave_get_sig_number ("SIGUSR1", &sigusr1); static int sigusr2; static const bool have_sigusr2 = octave_get_sig_number ("SIGUSR2", &sigusr2); child_list& kids = __get_child_list__ (); for (int sig = 0; sig < octave_num_signals (); sig++) { if (signals_caught[sig]) { signals_caught[sig] = false; if ((have_sigchld && sig == sigchld) || (have_sigcld && sig == sigcld)) { // FIXME: should we block or ignore? volatile interrupt_handler saved_interrupt_handler = ignore_interrupts (); void *context = octave_block_child (); kids.wait (); set_interrupt_handler (saved_interrupt_handler); octave_unblock_child (context); kids.reap (); } else if (have_sigpipe && sig == sigpipe) { std::cerr << "warning: broken pipe" << std::endl; // Don't loop forever on account of this. // FIXME: is this really needed? Does it do anything // useful now? if (pipe_handler_error_count++ > 100 && octave_interrupt_state >= 0) octave_interrupt_state++; } else if (have_sighup && sig == sighup) my_friendly_exit (sighup, Vsighup_dumps_octave_core); else if (have_sigquit && sig == sigquit) my_friendly_exit (sigquit, Vsigquit_dumps_octave_core); else if (have_sigterm && sig == sigterm) my_friendly_exit (sigterm, Vsigterm_dumps_octave_core); else if ((have_sigalrm && sig == sigalrm) || (have_sigvtalrm && sig == sigvtalrm) || (have_sigio && sig == sigio) || (have_siglost && sig == siglost) || (have_sigxcpu && sig == sigxcpu) || (have_sigxfsz && sig == sigxfsz) || (have_sigusr1 && sig == sigusr1) || (have_sigusr2 && sig == sigusr2)) std::cerr << "warning: ignoring signal: " << octave_strsignal_wrapper (sig) << std::endl; else if ((have_sigint && sig == sigint) || (have_sigbreak && sig == sigbreak)) ; // Handled separately; do nothing. else std::cerr << "warning: ignoring unexpected signal: " << octave_strsignal_wrapper (sig) << std::endl; } } } sig_handler * set_signal_handler (int sig, sig_handler *handler, bool restart_syscalls) { return octave_set_signal_handler_internal (sig, handler, restart_syscalls); } sig_handler * set_signal_handler (const char *signame, sig_handler *handler, bool restart_syscalls) { return octave_set_signal_handler_by_name (signame, handler, restart_syscalls); } static void generic_sig_handler (int sig) { // FIXME: this function may execute in a separate signal handler or // signal watcher thread so it should probably be more careful about // how it accesses global objects. octave_signal_caught = 1; signals_caught[sig] = true; static int sigint; static const bool have_sigint = octave_get_sig_number ("SIGINT", &sigint); static int sigbreak; static const bool have_sigbreak = octave_get_sig_number ("SIGBREAK", &sigbreak); if ((have_sigint && sig == sigint) || (have_sigbreak && sig == sigbreak)) { if (! octave_initialized) exit (1); if (can_interrupt) { octave_signal_caught = 1; octave_interrupt_state++; } } } static void deadly_sig_handler (int sig) { std::cerr << "fatal: caught signal " << octave_strsignal_wrapper (sig) << " -- stopping myself..." << std::endl; octave_set_default_signal_handler (sig); octave_raise_wrapper (sig); } static void fpe_sig_handler (int) { // FIXME: is there something better we can do? std::cerr << "warning: floating point exception" << std::endl; } interrupt_handler catch_interrupts (void) { interrupt_handler retval; retval.int_handler = set_signal_handler ("SIGINT", generic_sig_handler); retval.brk_handler = set_signal_handler ("SIGBREAK", generic_sig_handler); return retval; } interrupt_handler ignore_interrupts (void) { interrupt_handler retval; retval.int_handler = set_signal_handler ("SIGINT", SIG_IGN); retval.brk_handler = set_signal_handler ("SIGBREAK", SIG_IGN); return retval; } interrupt_handler set_interrupt_handler (const volatile interrupt_handler& h, bool restart_syscalls) { interrupt_handler retval; retval.int_handler = set_signal_handler ("SIGINT", h.int_handler, restart_syscalls); retval.brk_handler = set_signal_handler ("SIGBREAK", h.brk_handler, restart_syscalls); return retval; } // Install all the handlers for the signals we might care about. void install_signal_handlers (void) { if (! signals_caught) signals_caught = new bool [octave_num_signals ()]; for (int i = 0; i < octave_num_signals (); i++) signals_caught[i] = false; // Interrupt signals. catch_interrupts (); // Program Error signals. These are most likely unrecoverable for // us. set_signal_handler ("SIGABRT", deadly_sig_handler); set_signal_handler ("SIGBUS", deadly_sig_handler); set_signal_handler ("SIGEMT", deadly_sig_handler); set_signal_handler ("SIGILL", deadly_sig_handler); // SIGIOT is normally another name for SIGABRT. set_signal_handler ("SIGIOT", deadly_sig_handler); set_signal_handler ("SIGSEGV", deadly_sig_handler); set_signal_handler ("SIGSYS", deadly_sig_handler); set_signal_handler ("SIGTRAP", deadly_sig_handler); // Handle SIGFPE separately. set_signal_handler ("SIGFPE", fpe_sig_handler); // Handle other signals for which the default action is to terminate // the program. // Termination signals. set_signal_handler ("SIGHUP", generic_sig_handler); set_signal_handler ("SIGQUIT", generic_sig_handler); set_signal_handler ("SIGTERM", generic_sig_handler); // Alarm signals. set_signal_handler ("SIGALRM", generic_sig_handler); set_signal_handler ("SIGVTALRM", generic_sig_handler); // I/O signals. set_signal_handler ("SIGLOST", generic_sig_handler); set_signal_handler ("SIGPIPE", generic_sig_handler); // Job control signals. We only recognize signals about child // processes. set_signal_handler ("SIGCHLD", generic_sig_handler); set_signal_handler ("SIGCLD", generic_sig_handler); // Resource limit signals. // FIXME: does it really make sense to try to handle the CPU limit // signal? set_signal_handler ("SIGXCPU", generic_sig_handler); set_signal_handler ("SIGXFSZ", generic_sig_handler); // User signals. set_signal_handler ("SIGUSR1", generic_sig_handler); set_signal_handler ("SIGUSR2", generic_sig_handler); // This does nothing on Windows systems. octave_create_interrupt_watcher_thread (generic_sig_handler); } static void set_sig_struct_field (octave_scalar_map& m, const char *signame) { int signum; // The names in the struct do not include the leading "SIG" prefix. if (octave_get_sig_number (signame, &signum)) m.assign (&signame[3], signum); } static octave_scalar_map make_sig_struct (void) { octave_scalar_map m; set_sig_struct_field (m, "SIGABRT"); set_sig_struct_field (m, "SIGALRM"); set_sig_struct_field (m, "SIGBUS"); set_sig_struct_field (m, "SIGCHLD"); set_sig_struct_field (m, "SIGCLD"); set_sig_struct_field (m, "SIGCONT"); set_sig_struct_field (m, "SIGEMT"); set_sig_struct_field (m, "SIGFPE"); set_sig_struct_field (m, "SIGHUP"); set_sig_struct_field (m, "SIGILL"); set_sig_struct_field (m, "SIGINFO"); set_sig_struct_field (m, "SIGINT"); set_sig_struct_field (m, "SIGIO"); set_sig_struct_field (m, "SIGIOT"); set_sig_struct_field (m, "SIGKILL"); set_sig_struct_field (m, "SIGLOST"); set_sig_struct_field (m, "SIGPIPE"); set_sig_struct_field (m, "SIGPOLL"); set_sig_struct_field (m, "SIGPROF"); set_sig_struct_field (m, "SIGPWR"); set_sig_struct_field (m, "SIGQUIT"); set_sig_struct_field (m, "SIGSEGV"); set_sig_struct_field (m, "SIGSTKFLT"); set_sig_struct_field (m, "SIGSTOP"); set_sig_struct_field (m, "SIGSYS"); set_sig_struct_field (m, "SIGTERM"); set_sig_struct_field (m, "SIGTRAP"); set_sig_struct_field (m, "SIGTSTP"); set_sig_struct_field (m, "SIGTTIN"); set_sig_struct_field (m, "SIGTTOU"); set_sig_struct_field (m, "SIGUNUSED"); set_sig_struct_field (m, "SIGURG"); set_sig_struct_field (m, "SIGUSR1"); set_sig_struct_field (m, "SIGUSR2"); set_sig_struct_field (m, "SIGVTALRM"); set_sig_struct_field (m, "SIGWINCH"); set_sig_struct_field (m, "SIGXCPU"); set_sig_struct_field (m, "SIGXFSZ"); return m; } DEFUN (SIG, args, , doc: /* -*- texinfo -*- @deftypefn {} {@var{S} =} SIG () Return a structure containing Unix signal names and their defined values. @end deftypefn */) { if (args.length () != 0) print_usage (); static octave_scalar_map m = make_sig_struct (); return ovl (m); } /* %!assert (isstruct (SIG ())) %!assert (! isempty (SIG ())) %!error SIG (1) */ DEFUN (debug_on_interrupt, args, nargout, doc: /* -*- texinfo -*- @deftypefn {} {@var{val} =} debug_on_interrupt () @deftypefnx {} {@var{old_val} =} debug_on_interrupt (@var{new_val}) @deftypefnx {} {@var{old_val} =} debug_on_interrupt (@var{new_val}, "local") Query or set the internal variable that controls whether Octave will try to enter debugging mode when it receives an interrupt signal (typically generated with @kbd{C-c}). If a second interrupt signal is received before reaching the debugging mode, a normal interrupt will occur. When called from inside a function with the @qcode{"local"} option, the variable is changed locally for the function and any subroutines it calls. The original variable value is restored when exiting the function. @seealso{debug_on_error, debug_on_warning} @end deftypefn */) { return set_internal_variable (Vdebug_on_interrupt, args, nargout, "debug_on_interrupt"); } /* %!test %! orig_val = debug_on_interrupt (); %! old_val = debug_on_interrupt (! orig_val); %! assert (orig_val, old_val); %! assert (debug_on_interrupt (), ! orig_val); %! debug_on_interrupt (orig_val); %! assert (debug_on_interrupt (), orig_val); %!error debug_on_interrupt (1, 2) */ DEFUN (sighup_dumps_octave_core, args, nargout, doc: /* -*- texinfo -*- @deftypefn {} {@var{val} =} sighup_dumps_octave_core () @deftypefnx {} {@var{old_val} =} sighup_dumps_octave_core (@var{new_val}) @deftypefnx {} {@var{old_val} =} sighup_dumps_octave_core (@var{new_val}, "local") Query or set the internal variable that controls whether Octave tries to save all current variables to the file @file{octave-workspace} if it receives a hangup signal. When called from inside a function with the @qcode{"local"} option, the variable is changed locally for the function and any subroutines it calls. The original variable value is restored when exiting the function. @end deftypefn */) { return set_internal_variable (Vsighup_dumps_octave_core, args, nargout, "sighup_dumps_octave_core"); } /* %!test %! orig_val = sighup_dumps_octave_core (); %! old_val = sighup_dumps_octave_core (! orig_val); %! assert (orig_val, old_val); %! assert (sighup_dumps_octave_core (), ! orig_val); %! sighup_dumps_octave_core (orig_val); %! assert (sighup_dumps_octave_core (), orig_val); %!error sighup_dumps_octave_core (1, 2) */ DEFUN (sigquit_dumps_octave_core, args, nargout, doc: /* -*- texinfo -*- @deftypefn {} {@var{val} =} sigquit_dumps_octave_core () @deftypefnx {} {@var{old_val} =} sigquit_dumps_octave_core (@var{new_val}) @deftypefnx {} {@var{old_val} =} sigquit_dumps_octave_core (@var{new_val}, "local") Query or set the internal variable that controls whether Octave tries to save all current variables to the file @file{octave-workspace} if it receives a quit signal. When called from inside a function with the @qcode{"local"} option, the variable is changed locally for the function and any subroutines it calls. The original variable value is restored when exiting the function. @end deftypefn */) { return set_internal_variable (Vsigquit_dumps_octave_core, args, nargout, "sigquit_dumps_octave_core"); } /* %!test %! orig_val = sigquit_dumps_octave_core (); %! old_val = sigquit_dumps_octave_core (! orig_val); %! assert (orig_val, old_val); %! assert (sigquit_dumps_octave_core (), ! orig_val); %! sigquit_dumps_octave_core (orig_val); %! assert (sigquit_dumps_octave_core (), orig_val); %!error sigquit_dumps_octave_core (1, 2) */ DEFUN (sigterm_dumps_octave_core, args, nargout, doc: /* -*- texinfo -*- @deftypefn {} {@var{val} =} sigterm_dumps_octave_core () @deftypefnx {} {@var{old_val} =} sigterm_dumps_octave_core (@var{new_val}) @deftypefnx {} {@var{old_val} =} sigterm_dumps_octave_core (@var{new_val}, "local") Query or set the internal variable that controls whether Octave tries to save all current variables to the file @file{octave-workspace} if it receives a terminate signal. When called from inside a function with the @qcode{"local"} option, the variable is changed locally for the function and any subroutines it calls. The original variable value is restored when exiting the function. @end deftypefn */) { return set_internal_variable (Vsigterm_dumps_octave_core, args, nargout, "sigterm_dumps_octave_core"); } /* %!test %! orig_val = sigterm_dumps_octave_core (); %! old_val = sigterm_dumps_octave_core (! orig_val); %! assert (orig_val, old_val); %! assert (sigterm_dumps_octave_core (), ! orig_val); %! sigterm_dumps_octave_core (orig_val); %! assert (sigterm_dumps_octave_core (), orig_val); %!error sigterm_dumps_octave_core (1, 2) */ OCTAVE_END_NAMESPACE(octave)