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1 // resource.cc -*- C++ -*- |
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2 /* |
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3 |
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4 Copyright (C) 1992, 1993, 1994, 1995 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 2, or (at your option) any |
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11 later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, write to the Free |
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20 Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 |
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22 */ |
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23 |
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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28 #include "tree-const.h" |
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29 #include "systime.h" |
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30 #include "oct-obj.h" |
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31 #include "oct-map.h" |
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32 #include "defun.h" |
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33 #include "utils.h" |
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34 #include "help.h" |
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35 |
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36 #ifdef HAVE_SYS_RESOURCE_H |
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37 extern "C" |
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38 { |
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39 #include <sys/resource.h> |
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40 } |
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41 #endif |
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42 |
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43 #ifndef RUSAGE_SELF |
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44 #define RUSAGE_SELF 0 |
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45 #endif |
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46 |
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47 // System resource functions. |
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48 |
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49 static Octave_map |
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50 mk_ru_map (struct rusage *ru) |
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51 { |
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52 Octave_map m; |
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53 Octave_map tv_tmp; |
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54 |
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55 #if defined (HAVE_GETRUSAGE) |
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56 tv_tmp ["tv_sec"] = (double) ru->ru_utime.tv_sec; |
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57 tv_tmp ["tv_usec"] = (double) ru->ru_utime.tv_usec; |
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58 m ["ru_utime"] = tree_constant (tv_tmp); |
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59 |
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60 tv_tmp ["tv_sec"] = (double) ru->ru_stime.tv_sec; |
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61 tv_tmp ["tv_usec"] = (double) ru->ru_stime.tv_usec; |
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62 m ["ru_stime"] = tree_constant (tv_tmp); |
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63 |
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64 m ["ru_maxrss"] = (double) ru->ru_maxrss; |
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65 m ["ru_ixrss"] = (double) ru->ru_ixrss; |
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66 m ["ru_idrss"] = (double) ru->ru_idrss; |
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67 m ["ru_isrss"] = (double) ru->ru_isrss; |
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68 m ["ru_minflt"] = (double) ru->ru_minflt; |
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69 m ["ru_majflt"] = (double) ru->ru_majflt; |
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70 m ["ru_nswap"] = (double) ru->ru_nswap; |
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71 m ["ru_inblock"] = (double) ru->ru_inblock; |
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72 m ["ru_oublock"] = (double) ru->ru_oublock; |
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73 m ["ru_msgsnd"] = (double) ru->ru_msgsnd; |
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74 m ["ru_msgrcv"] = (double) ru->ru_msgrcv; |
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75 m ["ru_nsignals"] = (double) ru->ru_nsignals; |
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76 m ["ru_nvcsw"] = (double) ru->ru_nvcsw; |
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77 m ["ru_nivcsw"] = (double) ru->ru_nivcsw; |
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78 #else |
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79 tv_tmp ["tv_sec"] = octave_NaN; |
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80 tv_tmp ["tv_usec"] = octave_NaN; |
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81 m ["ru_utime"] = tree_constant (tv_tmp); |
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82 |
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83 tv_tmp ["tv_sec"] = octave_NaN; |
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84 tv_tmp ["tv_usec"] = octave_NaN; |
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85 m ["ru_stime"] = tree_constant (tv_tmp); |
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86 |
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87 m ["ru_maxrss"] = octave_NaN; |
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88 m ["ru_ixrss"] = octave_NaN; |
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89 m ["ru_idrss"] = octave_NaN; |
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90 m ["ru_isrss"] = octave_NaN; |
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91 m ["ru_minflt"] = octave_NaN; |
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92 m ["ru_majflt"] = octave_NaN; |
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93 m ["ru_nswap"] = octave_NaN; |
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94 m ["ru_inblock"] = octave_NaN; |
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95 m ["ru_oublock"] = octave_NaN; |
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96 m ["ru_msgsnd"] = octave_NaN; |
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97 m ["ru_msgrcv"] = octave_NaN; |
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98 m ["ru_nsignals"] = octave_NaN; |
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99 m ["ru_nvcsw"] = octave_NaN; |
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100 m ["ru_nivcsw"] = octave_NaN; |
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101 #endif |
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102 |
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103 return m; |
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104 } |
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105 |
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106 DEFUN ("getrusage", Fgetrusage, Sgetrusage, 0, 0, |
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107 "getrusage ()\n\ |
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108 \n\ |
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109 Return system resource statistics.") |
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110 { |
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111 Octave_object retval; |
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112 |
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113 #if defined (HAVE_GETRUSAGE) |
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114 |
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115 struct rusage resource_stats; |
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116 |
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117 getrusage (RUSAGE_SELF, &resource_stats); |
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118 |
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119 retval = tree_constant (mk_ru_map (&resource_stats)); |
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120 |
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121 #endif |
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122 |
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123 return retval; |
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124 } |
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125 |
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126 /* |
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127 ;;; Local Variables: *** |
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128 ;;; mode: C++ *** |
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129 ;;; page-delimiter: "^/\\*" *** |
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130 ;;; End: *** |
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131 */ |
