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1 /* |
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2 |
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3 Copyright (C) 1996, 1997, 1998, 1999, 2002, 2003, 2005, 2006, 2007 |
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4 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 3 of the License, or (at your |
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11 option) any 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, see |
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20 <http://www.gnu.org/licenses/>. |
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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 "systime.h" |
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29 |
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30 #ifdef HAVE_SYS_TYPES_H |
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31 #include <sys/types.h> |
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32 #endif |
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33 |
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34 #ifdef HAVE_SYS_RESOURCE_H |
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35 #include <sys/resource.h> |
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36 #endif |
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37 |
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38 #if defined (__WIN32__) |
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39 #include <windows.h> |
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40 #ifdef min |
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41 #undef min |
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42 #endif |
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43 #endif |
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44 |
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45 #if defined (HAVE_TIMES) && defined (HAVE_SYS_TIMES_H) |
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46 |
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47 #if defined (HAVE_SYS_PARAM_H) |
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48 #include <sys/param.h> |
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49 #endif |
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50 #include <sys/times.h> |
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51 |
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52 #if !defined (HZ) |
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53 #if defined (CLK_TCK) |
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54 #define HZ CLK_TCK |
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55 #elif defined (USG) |
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56 #define HZ 100 |
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57 #else |
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58 #define HZ 60 |
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59 #endif |
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60 #endif |
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61 |
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62 #endif |
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63 |
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64 #include "defun-dld.h" |
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65 #include "oct-map.h" |
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66 #include "sysdep.h" |
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67 #include "ov.h" |
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68 #include "oct-obj.h" |
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69 #include "utils.h" |
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70 |
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71 #ifndef RUSAGE_SELF |
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72 #define RUSAGE_SELF 0 |
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73 #endif |
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74 |
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75 // System resource functions. |
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76 |
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77 DEFUN_DLD (getrusage, , , |
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78 "-*- texinfo -*-\n\ |
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79 @deftypefn {Loadable Function} {} getrusage ()\n\ |
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80 Return a structure containing a number of statistics about the current\n\ |
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81 Octave process. Not all fields are available on all systems. If it is\n\ |
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82 not possible to get CPU time statistics, the CPU time slots are set to\n\ |
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83 zero. Other missing data are replaced by NaN. Here is a list of all\n\ |
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84 the possible fields that can be present in the structure returned by\n\ |
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85 @code{getrusage}:\n\ |
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86 \n\ |
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87 @table @code\n\ |
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88 @item idrss\n\ |
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89 Unshared data size.\n\ |
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90 \n\ |
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91 @item inblock\n\ |
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92 Number of block input operations.\n\ |
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93 \n\ |
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94 @item isrss\n\ |
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95 Unshared stack size.\n\ |
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96 \n\ |
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97 @item ixrss\n\ |
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98 Shared memory size.\n\ |
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99 \n\ |
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100 @item majflt\n\ |
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101 Number of major page faults.\n\ |
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102 \n\ |
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103 @item maxrss\n\ |
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104 Maximum data size.\n\ |
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105 \n\ |
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106 @item minflt\n\ |
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107 Number of minor page faults.\n\ |
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108 \n\ |
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109 @item msgrcv\n\ |
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110 Number of messages received.\n\ |
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111 \n\ |
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112 @item msgsnd\n\ |
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113 Number of messages sent.\n\ |
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114 \n\ |
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115 @item nivcsw\n\ |
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116 Number of involuntary context switches.\n\ |
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117 \n\ |
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118 @item nsignals\n\ |
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119 Number of signals received.\n\ |
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120 \n\ |
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121 @item nswap\n\ |
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122 Number of swaps.\n\ |
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123 \n\ |
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124 @item nvcsw\n\ |
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125 Number of voluntary context switches.\n\ |
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126 \n\ |
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127 @item oublock\n\ |
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128 Number of block output operations.\n\ |
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129 \n\ |
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130 @item stime\n\ |
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131 A structure containing the system CPU time used. The structure has the\n\ |
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132 elements @code{sec} (seconds) @code{usec} (microseconds).\n\ |
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133 \n\ |
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134 @item utime\n\ |
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135 A structure containing the user CPU time used. The structure has the\n\ |
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136 elements @code{sec} (seconds) @code{usec} (microseconds).\n\ |
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137 @end table\n\ |
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138 @end deftypefn") |
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139 { |
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140 Octave_map m; |
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141 Octave_map tv_tmp; |
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142 |
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143 // FIXME -- maybe encapsulate all of this in a liboctave class |
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144 #if defined (HAVE_GETRUSAGE) |
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145 |
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146 struct rusage ru; |
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147 |
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148 getrusage (RUSAGE_SELF, &ru); |
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149 |
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150 tv_tmp.assign ("sec", static_cast<double> (ru.ru_utime.tv_sec)); |
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151 tv_tmp.assign ("usec", static_cast<double> (ru.ru_utime.tv_usec)); |
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152 m.assign ("utime", octave_value (tv_tmp)); |
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153 |
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154 tv_tmp.assign ("sec", static_cast<double> (ru.ru_stime.tv_sec)); |
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155 tv_tmp.assign ("usec", static_cast<double> (ru.ru_stime.tv_usec)); |
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156 m.assign ("stime", octave_value (tv_tmp)); |
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157 |
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158 #if ! defined (RUSAGE_TIMES_ONLY) |
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159 m.assign ("maxrss", static_cast<double> (ru.ru_maxrss)); |
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160 m.assign ("ixrss", static_cast<double> (ru.ru_ixrss)); |
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161 m.assign ("idrss", static_cast<double> (ru.ru_idrss)); |
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162 m.assign ("isrss", static_cast<double> (ru.ru_isrss)); |
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163 m.assign ("minflt", static_cast<double> (ru.ru_minflt)); |
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164 m.assign ("majflt", static_cast<double> (ru.ru_majflt)); |
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165 m.assign ("nswap", static_cast<double> (ru.ru_nswap)); |
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166 m.assign ("inblock", static_cast<double> (ru.ru_inblock)); |
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167 m.assign ("oublock", static_cast<double> (ru.ru_oublock)); |
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168 m.assign ("msgsnd", static_cast<double> (ru.ru_msgsnd)); |
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169 m.assign ("msgrcv", static_cast<double> (ru.ru_msgrcv)); |
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170 m.assign ("nsignals", static_cast<double> (ru.ru_nsignals)); |
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171 m.assign ("nvcsw", static_cast<double> (ru.ru_nvcsw)); |
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172 m.assign ("nivcsw", static_cast<double> (ru.ru_nivcsw)); |
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173 #endif |
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174 |
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175 #else |
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176 #if defined (HAVE_TIMES) && defined (HAVE_SYS_TIMES_H) |
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177 |
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178 struct tms t; |
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179 |
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180 times (&t); |
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181 |
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182 unsigned long ticks; |
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183 unsigned long seconds; |
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184 unsigned long fraction; |
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185 |
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186 ticks = t.tms_utime + t.tms_cutime; |
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187 fraction = ticks % HZ; |
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188 seconds = ticks / HZ; |
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189 |
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190 tv_tmp.assign ("sec", static_cast<double> (seconds)); |
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191 tv_tmp.assign ("usec", static_cast<double> (fraction * 1e6 / HZ)); |
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192 m.assign ("utime", octave_value (tv_tmp)); |
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193 |
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194 ticks = t.tms_stime + t.tms_cstime; |
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195 fraction = ticks % HZ; |
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196 seconds = ticks / HZ; |
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197 |
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198 tv_tmp.assign ("sec", static_cast<double> (seconds)); |
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199 tv_tmp.assign ("usec", static_cast<double> (fraction * 1e6 / HZ)); |
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200 m.assign ("stime", octave_value (tv_tmp)); |
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201 |
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202 #elif defined (__WIN32__) |
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203 HANDLE hProcess = GetCurrentProcess (); |
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204 FILETIME ftCreation, ftExit, ftUser, ftKernel; |
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205 GetProcessTimes (hProcess, &ftCreation, &ftExit, &ftKernel, &ftUser); |
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206 |
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207 int64_t itmp = *(reinterpret_cast<int64_t *> (&ftUser)); |
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208 tv_tmp.assign ("sec", static_cast<double> (itmp / 10000000U)); |
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209 tv_tmp.assign ("usec", static_cast<double> (itmp % 10000000U) / 10.); |
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210 m.assign ("utime", octave_value (tv_tmp)); |
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211 |
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212 itmp = *(reinterpret_cast<int64_t *> (&ftKernel)); |
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213 tv_tmp.assign ("sec", static_cast<double> (itmp / 10000000U)); |
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214 tv_tmp.assign ("usec", static_cast<double> (itmp % 10000000U) / 10.); |
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215 m.assign ("stime", octave_value (tv_tmp)); |
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216 #else |
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217 |
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218 tv_tmp.assign ("sec", 0); |
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219 tv_tmp.assign ("usec", 0); |
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220 m.assign ("utime", octave_value (tv_tmp)); |
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221 |
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222 tv_tmp.assign ("sec", 0); |
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223 tv_tmp.assign ("usec", 0); |
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224 m.assign ("stime", octave_value (tv_tmp)); |
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225 |
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226 #endif |
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227 |
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228 double tmp = lo_ieee_nan_value (); |
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229 |
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230 m.assign ("maxrss", tmp); |
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231 m.assign ("ixrss", tmp); |
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232 m.assign ("idrss", tmp); |
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233 m.assign ("isrss", tmp); |
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234 m.assign ("minflt", tmp); |
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235 m.assign ("majflt", tmp); |
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236 m.assign ("nswap", tmp); |
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237 m.assign ("inblock", tmp); |
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238 m.assign ("oublock", tmp); |
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239 m.assign ("msgsnd", tmp); |
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240 m.assign ("msgrcv", tmp); |
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241 m.assign ("nsignals", tmp); |
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242 m.assign ("nvcsw", tmp); |
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243 m.assign ("nivcsw", tmp); |
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244 |
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245 #endif |
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246 |
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247 return octave_value (m); |
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248 } |
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249 |
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250 /* |
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251 ;;; Local Variables: *** |
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252 ;;; mode: C++ *** |
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253 ;;; End: *** |
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254 */ |
