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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 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 2, or (at your option) any |
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10 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, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #include "systime.h" |
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28 |
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29 #ifdef HAVE_SYS_RESOURCE_H |
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30 #include <sys/resource.h> |
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31 #endif |
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32 |
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33 #if defined (HAVE_TIMES) && defined (HAVE_SYS_TIMES_H) |
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34 |
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35 #if defined (HAVE_SYS_PARAM_H) |
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36 #include <sys/param.h> |
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37 #endif |
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38 #include <sys/times.h> |
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39 |
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40 #if !defined (HZ) |
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41 #if defined (CLK_TCK) |
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42 #define HZ CLK_TCK |
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43 #elif defined (USG) |
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44 #define HZ 100 |
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45 #else |
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46 #define HZ 60 |
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47 #endif |
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48 #endif |
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49 |
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50 #endif |
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51 |
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52 #include "defun-dld.h" |
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53 #include "oct-map.h" |
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54 #include "sysdep.h" |
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55 #include "ov.h" |
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56 #include "oct-obj.h" |
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57 #include "utils.h" |
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58 |
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59 #ifndef RUSAGE_SELF |
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60 #define RUSAGE_SELF 0 |
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61 #endif |
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62 |
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63 // System resource functions. |
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64 |
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65 DEFUN_DLD (getrusage, , , |
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66 "getrusage ()\n\ |
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67 \n\ |
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68 Return system resource statistics.") |
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69 { |
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70 Octave_map m; |
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71 Octave_map tv_tmp; |
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72 |
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73 #if defined (HAVE_GETRUSAGE) |
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74 |
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75 struct rusage ru; |
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76 |
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77 getrusage (RUSAGE_SELF, &ru); |
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78 |
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79 tv_tmp ["sec"] = static_cast<double> (ru.ru_utime.tv_sec); |
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80 tv_tmp ["usec"] = static_cast<double> (ru.ru_utime.tv_usec); |
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81 m ["utime"] = octave_value (tv_tmp); |
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82 |
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83 tv_tmp ["sec"] = static_cast<double> (ru.ru_stime.tv_sec); |
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84 tv_tmp ["usec"] = static_cast<double> (ru.ru_stime.tv_usec); |
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85 m ["stime"] = octave_value (tv_tmp); |
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86 |
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87 #if ! defined (RUSAGE_TIMES_ONLY) |
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88 m ["maxrss"] = static_cast<double> (ru.ru_maxrss); |
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89 m ["ixrss"] = static_cast<double> (ru.ru_ixrss); |
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90 m ["idrss"] = static_cast<double> (ru.ru_idrss); |
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91 m ["isrss"] = static_cast<double> (ru.ru_isrss); |
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92 m ["minflt"] = static_cast<double> (ru.ru_minflt); |
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93 m ["majflt"] = static_cast<double> (ru.ru_majflt); |
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94 m ["nswap"] = static_cast<double> (ru.ru_nswap); |
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95 m ["inblock"] = static_cast<double> (ru.ru_inblock); |
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96 m ["oublock"] = static_cast<double> (ru.ru_oublock); |
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97 m ["msgsnd"] = static_cast<double> (ru.ru_msgsnd); |
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98 m ["msgrcv"] = static_cast<double> (ru.ru_msgrcv); |
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99 m ["nsignals"] = static_cast<double> (ru.ru_nsignals); |
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100 m ["nvcsw"] = static_cast<double> (ru.ru_nvcsw); |
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101 m ["nivcsw"] = static_cast<double> (ru.ru_nivcsw); |
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102 #endif |
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103 |
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104 #else |
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105 #if defined (HAVE_TIMES) && defined (HAVE_SYS_TIMES_H) |
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106 |
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107 struct tms t; |
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108 |
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109 times (&t); |
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110 |
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111 unsigned long ticks; |
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112 unsigned long seconds; |
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113 unsigned long fraction; |
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114 |
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115 ticks = t.tms_utime + t.tms_cutime; |
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116 fraction = ticks % HZ; |
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117 seconds = ticks / HZ; |
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118 |
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119 tv_tmp ["sec"] = static_cast<double> (seconds); |
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120 tv_tmp ["usec"] = static_cast<double> (fraction * 1e6 / HZ); |
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121 m ["utime"] = octave_value (tv_tmp); |
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122 |
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123 ticks = t.tms_stime + t.tms_cstime; |
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124 fraction = ticks % HZ; |
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125 seconds = ticks / HZ; |
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126 |
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127 tv_tmp ["sec"] = static_cast<double> (seconds); |
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128 tv_tmp ["usec"] = static_cast<double> (fraction * 1e6 / HZ); |
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129 m ["stime"] = octave_value (tv_tmp); |
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130 |
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131 #else |
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132 |
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133 tv_tmp ["sec"] = 0.0; |
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134 tv_tmp ["usec"] = 0.0; |
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135 m ["utime"] = octave_value (tv_tmp); |
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136 |
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137 tv_tmp ["sec"] = 0.0; |
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138 tv_tmp ["usec"] = 0.0; |
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139 m ["stime"] = octave_value (tv_tmp); |
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140 |
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141 #endif |
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142 |
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143 m ["maxrss"] = octave_NaN; |
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144 m ["ixrss"] = octave_NaN; |
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145 m ["idrss"] = octave_NaN; |
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146 m ["isrss"] = octave_NaN; |
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147 m ["minflt"] = octave_NaN; |
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148 m ["majflt"] = octave_NaN; |
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149 m ["nswap"] = octave_NaN; |
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150 m ["inblock"] = octave_NaN; |
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151 m ["oublock"] = octave_NaN; |
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152 m ["msgsnd"] = octave_NaN; |
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153 m ["msgrcv"] = octave_NaN; |
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154 m ["nsignals"] = octave_NaN; |
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155 m ["nvcsw"] = octave_NaN; |
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156 m ["nivcsw"] = octave_NaN; |
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157 |
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158 #endif |
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159 |
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160 return octave_value (m); |
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161 } |
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162 |
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163 /* |
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164 ;;; Local Variables: *** |
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165 ;;; mode: C++ *** |
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166 ;;; End: *** |
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167 */ |
