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annotate libinterp/corefcn/sighandlers.h @ 30564:796f54d4ddbf stable

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update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2021. In all .txi and .texi files except gpl.txi and gpl.texi in the doc/liboctave and doc/interpreter directories, change the copyright to "Octave Project Developers", the same as used for other source files. Update copyright notices for 2022 (not done since 2019). For gpl.txi and gpl.texi, change the copyright notice to be "Free Software Foundation, Inc." and leave the date at 2007 only because this file only contains the text of the GPL, not anything created by the Octave Project Developers. Add Paul Thomas to contributors.in.
author John W. Eaton <jwe@octave.org>
date Tue, 28 Dec 2021 18:22:40 -0500
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children e88a07dec498
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1993-2022 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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26 /*
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27
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28 The signal blocking macros defined below were adapted from similar
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29 functions from GNU Bash, the Bourne Again SHell, copyright (C) 1994
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30 Free Software Foundation, Inc.
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31
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32 */
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33
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34 // This file should always be included after config.h!
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35
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36 #if ! defined (octave_sighandlers_h)
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37 #define octave_sighandlers_h 1
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38
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39 #include "octave-config.h"
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40
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41 #include "child-list.h"
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42
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43 OCTAVE_NAMESPACE_BEGIN
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44
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45 // This type must match the typedef in signal-wrappers.h.
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46 typedef void sig_handler (int);
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47
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48 struct interrupt_handler
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49 {
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50 sig_handler *int_handler;
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51 sig_handler *brk_handler;
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52 };
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53
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54 // Nonzero means we have already printed a message for this series of
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55 // SIGPIPES. We assume that the writer will eventually give up.
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56 extern int pipe_handler_error_count;
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57
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58 // TRUE means we can be interrupted.
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59 extern OCTINTERP_API bool can_interrupt;
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60
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61 extern OCTINTERP_API sig_handler *
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62 set_signal_handler (int sig, sig_handler *h,
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63 bool restart_syscalls = true);
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64
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65 extern OCTINTERP_API sig_handler *
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66 set_signal_handler (const char *signame, sig_handler *h,
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67 bool restart_syscalls = true);
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68
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69 extern OCTINTERP_API void install_signal_handlers (void);
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70
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71 extern OCTINTERP_API void respond_to_pending_signals (void);
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72
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73 extern OCTINTERP_API interrupt_handler catch_interrupts (void);
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75 extern OCTINTERP_API interrupt_handler ignore_interrupts (void);
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76
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77 extern OCTINTERP_API interrupt_handler
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78 set_interrupt_handler (const volatile interrupt_handler& h,
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79 bool restart_syscalls = true);
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80
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81 // TRUE means we should try to enter the debugger on SIGINT.
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82 extern OCTINTERP_API bool Vdebug_on_interrupt;
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83
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84 OCTAVE_NAMESPACE_END
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85
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86 #endif