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annotate libinterp/corefcn/sighandlers.h @ 33617:ec2635a02328 bytecode-interpreter tip

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maint: Merge default to bytecode-interpreter.
author Markus Mützel <markus.muetzel@gmx.de>
date Tue, 21 May 2024 18:29:03 +0200
parents ebc26cef3096
children
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1993-2024 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 ////////////////////////////////////////////////////////////////////////
1
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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 <atomic>
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40
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41 #include "octave-config.h"
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42
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43 #include "child-list.h"
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44
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45 OCTAVE_BEGIN_NAMESPACE(octave)
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46
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47 // This type must match the typedef in signal-wrappers.h.
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48 typedef void sig_handler (int);
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49
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50 struct interrupt_handler
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51 {
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52 sig_handler *int_handler;
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53 sig_handler *brk_handler;
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54 };
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55
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56 // Nonzero means we have already printed a message for this series of
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57 // SIGPIPES. We assume that the writer will eventually give up.
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58 extern int pipe_handler_error_count;
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59
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60 // TRUE means we can be interrupted.
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61 extern OCTINTERP_API std::atomic<bool> can_interrupt;
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62
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63 extern OCTINTERP_API sig_handler *
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64 set_signal_handler (int sig, sig_handler *h,
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65 bool restart_syscalls = true);
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66
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67 extern OCTINTERP_API sig_handler *
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68 set_signal_handler (const char *signame, sig_handler *h,
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69 bool restart_syscalls = true);
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70
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71 extern OCTINTERP_API void install_signal_handlers ();
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72
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73 extern OCTINTERP_API void respond_to_pending_signals ();
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75 extern OCTINTERP_API interrupt_handler catch_interrupts ();
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77 extern OCTINTERP_API interrupt_handler ignore_interrupts ();
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78
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79 extern OCTINTERP_API interrupt_handler
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80 set_interrupt_handler (const interrupt_handler& h,
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81 bool restart_syscalls = true);
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82
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83 // TRUE means we should try to enter the debugger on SIGINT.
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84 extern OCTINTERP_API bool Vdebug_on_interrupt;
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85
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86 OCTAVE_END_NAMESPACE(octave)
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87
1
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88 #endif