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1 /* |
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2 |
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3 Copyright (C) 1996, 1997, 2005, 2006, 2007 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 3 of the License, or (at your |
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10 option) any later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, see |
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19 <http://www.gnu.org/licenses/>. |
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20 |
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21 */ |
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22 |
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23 #if !defined (octave_syswait_h) |
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24 #define octave_syswait_h 1 |
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25 |
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26 #ifdef __cplusplus |
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27 extern "C" { |
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28 #endif |
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29 |
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30 /* This mess suggested by the autoconf manual. */ |
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31 |
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32 #include <sys/types.h> |
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33 |
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34 #if defined (NeXT) && ! defined (_POSIX_SOURCE) |
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35 #define HAVE_SYS_WAIT_H |
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36 #endif |
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37 |
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38 #if defined HAVE_SYS_WAIT_H |
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39 #include <sys/wait.h> |
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40 #endif |
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41 |
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42 #if defined (NeXT) |
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43 #define HAVE_WAITPID 1 |
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44 #define WAITPID(a, b, c) \ |
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45 wait4 ((a) == -1 ? 0 : (a), (union wait *)(b), c, 0) |
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46 |
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47 /* Use the defaults below. */ |
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48 #undef WIFEXITED |
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49 #undef WEXITSTATUS |
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50 #undef WIFSIGNALLED |
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51 #endif |
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52 |
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53 /* NeXT has sys/wait.h, but it is not compatible with POSIX.1, so we |
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54 try to define waitpid in terms of wait4. */ |
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55 |
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56 #if defined (NeXT) |
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57 #include <sys/wait.h> |
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58 #define waitpid(a, b, c) \ |
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59 wait4 ((a) == -1 ? 0 : (a), (union wait *)(b), c, 0) |
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60 #endif |
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61 |
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62 #ifndef WIFEXITED |
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63 #define WIFEXITED(stat_val) (((stat_val) & 255) == 0) |
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64 #endif |
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65 |
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66 #ifndef WEXITSTATUS |
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67 #define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8) |
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68 #endif |
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69 |
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70 #ifndef WIFSIGNALLED |
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71 #define WIFSIGNALLED(stat_val) \ |
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72 (((stat_val) & 0177) != 0177 && ((stat_val) & 0177) != 0) |
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73 #endif |
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74 |
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75 #if defined (__MINGW32__) || defined (_MSC_VER) |
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76 #define HAVE_WAITPID 1 |
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77 #include <process.h> |
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78 #define WAITPID(a, b, c) _cwait (b, a, c) |
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79 /* Action argument is ignored for _cwait, so arbitrary definition. */ |
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80 #define WNOHANG 0 |
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81 #else |
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82 #define WAITPID(a, b, c) waitpid (a, b, c) |
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83 #endif |
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84 |
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85 #ifdef __cplusplus |
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86 } |
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87 #endif |
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88 |
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89 #endif |
