Mercurial > octave-nkf
annotate libinterp/corefcn/getrusage.cc @ 20616:fd0efcdb3718
use new string_value method to handle value extraction errors
* dirfns.cc, file-io.cc, gammainc.cc, help.cc, load-path.cc,
octave-link.cc, qz.cc, regexp.cc, strfns.cc, syscalls.cc, time.cc,
variables.cc: Use new string_value method.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Thu, 08 Oct 2015 19:00:51 -0400 |
| parents | 4f45eaf83908 |
| children |
| rev | line source |
|---|---|
| 2928 | 1 /* |
| 2 | |
|
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3 Copyright (C) 1996-2015 John W. Eaton |
| 2928 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 2928 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 2928 | 20 |
| 21 */ | |
| 22 | |
| 23 #ifdef HAVE_CONFIG_H | |
| 24 #include <config.h> | |
| 25 #endif | |
| 26 | |
|
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27 #include <sys/time.h> |
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28 #include <sys/times.h> |
| 3176 | 29 #include <sys/types.h> |
| 30 | |
| 2928 | 31 #ifdef HAVE_SYS_RESOURCE_H |
| 32 #include <sys/resource.h> | |
| 33 #endif | |
| 34 | |
| 35 #if defined (HAVE_SYS_PARAM_H) | |
| 36 #include <sys/param.h> | |
| 37 #endif | |
|
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38 |
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39 #include "defun.h" |
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40 #include "oct-map.h" |
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41 #include "sysdep.h" |
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42 #include "ov.h" |
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43 #include "oct-obj.h" |
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44 #include "utils.h" |
| 2928 | 45 |
| 46 #if !defined (HZ) | |
| 47 #if defined (CLK_TCK) | |
| 48 #define HZ CLK_TCK | |
| 49 #elif defined (USG) | |
| 50 #define HZ 100 | |
| 51 #else | |
| 52 #define HZ 60 | |
| 53 #endif | |
| 54 #endif | |
| 55 | |
| 56 #ifndef RUSAGE_SELF | |
| 57 #define RUSAGE_SELF 0 | |
| 58 #endif | |
| 59 | |
| 60 // System resource functions. | |
| 61 | |
|
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62 DEFUN (getrusage, , , |
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63 "-*- texinfo -*-\n\ |
|
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64 @deftypefn {Built-in Function} {} getrusage ()\n\ |
| 3301 | 65 Return a structure containing a number of statistics about the current\n\ |
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66 Octave process.\n\ |
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67 \n\ |
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68 Not all fields are available on all systems. If it is not possible to get\n\ |
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69 CPU time statistics, the CPU time slots are set to zero. Other missing data\n\ |
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70 are replaced by NaN@. The list of possible fields is:\n\ |
| 3301 | 71 \n\ |
| 72 @table @code\n\ | |
| 73 @item idrss\n\ | |
| 74 Unshared data size.\n\ | |
| 75 \n\ | |
| 76 @item inblock\n\ | |
| 77 Number of block input operations.\n\ | |
| 78 \n\ | |
| 79 @item isrss\n\ | |
| 80 Unshared stack size.\n\ | |
| 81 \n\ | |
| 82 @item ixrss\n\ | |
| 83 Shared memory size.\n\ | |
| 84 \n\ | |
| 85 @item majflt\n\ | |
| 86 Number of major page faults.\n\ | |
| 87 \n\ | |
| 88 @item maxrss\n\ | |
| 89 Maximum data size.\n\ | |
| 90 \n\ | |
| 91 @item minflt\n\ | |
| 92 Number of minor page faults.\n\ | |
| 2928 | 93 \n\ |
| 3301 | 94 @item msgrcv\n\ |
| 95 Number of messages received.\n\ | |
| 96 \n\ | |
| 97 @item msgsnd\n\ | |
| 98 Number of messages sent.\n\ | |
| 99 \n\ | |
| 100 @item nivcsw\n\ | |
| 101 Number of involuntary context switches.\n\ | |
| 102 \n\ | |
| 103 @item nsignals\n\ | |
| 104 Number of signals received.\n\ | |
| 105 \n\ | |
| 106 @item nswap\n\ | |
| 107 Number of swaps.\n\ | |
| 108 \n\ | |
| 109 @item nvcsw\n\ | |
| 110 Number of voluntary context switches.\n\ | |
| 111 \n\ | |
| 112 @item oublock\n\ | |
| 113 Number of block output operations.\n\ | |
| 114 \n\ | |
| 115 @item stime\n\ | |
| 116 A structure containing the system CPU time used. The structure has the\n\ | |
| 117 elements @code{sec} (seconds) @code{usec} (microseconds).\n\ | |
| 118 \n\ | |
| 119 @item utime\n\ | |
| 120 A structure containing the user CPU time used. The structure has the\n\ | |
| 121 elements @code{sec} (seconds) @code{usec} (microseconds).\n\ | |
| 122 @end table\n\ | |
| 123 @end deftypefn") | |
| 2928 | 124 { |
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125 octave_scalar_map m; |
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126 octave_scalar_map tv_tmp; |
| 2928 | 127 |
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128 // FIXME: maybe encapsulate all of this in a liboctave class |
| 2928 | 129 #if defined (HAVE_GETRUSAGE) |
| 130 | |
| 131 struct rusage ru; | |
| 132 | |
| 133 getrusage (RUSAGE_SELF, &ru); | |
| 134 | |
| 4675 | 135 tv_tmp.assign ("sec", static_cast<double> (ru.ru_utime.tv_sec)); |
| 136 tv_tmp.assign ("usec", static_cast<double> (ru.ru_utime.tv_usec)); | |
| 137 m.assign ("utime", octave_value (tv_tmp)); | |
| 2928 | 138 |
| 4675 | 139 tv_tmp.assign ("sec", static_cast<double> (ru.ru_stime.tv_sec)); |
| 140 tv_tmp.assign ("usec", static_cast<double> (ru.ru_stime.tv_usec)); | |
| 141 m.assign ("stime", octave_value (tv_tmp)); | |
| 2928 | 142 |
| 143 #if ! defined (RUSAGE_TIMES_ONLY) | |
| 4675 | 144 m.assign ("maxrss", static_cast<double> (ru.ru_maxrss)); |
| 145 m.assign ("ixrss", static_cast<double> (ru.ru_ixrss)); | |
| 146 m.assign ("idrss", static_cast<double> (ru.ru_idrss)); | |
| 147 m.assign ("isrss", static_cast<double> (ru.ru_isrss)); | |
| 148 m.assign ("minflt", static_cast<double> (ru.ru_minflt)); | |
| 149 m.assign ("majflt", static_cast<double> (ru.ru_majflt)); | |
| 150 m.assign ("nswap", static_cast<double> (ru.ru_nswap)); | |
| 151 m.assign ("inblock", static_cast<double> (ru.ru_inblock)); | |
| 152 m.assign ("oublock", static_cast<double> (ru.ru_oublock)); | |
| 153 m.assign ("msgsnd", static_cast<double> (ru.ru_msgsnd)); | |
| 154 m.assign ("msgrcv", static_cast<double> (ru.ru_msgrcv)); | |
| 155 m.assign ("nsignals", static_cast<double> (ru.ru_nsignals)); | |
| 156 m.assign ("nvcsw", static_cast<double> (ru.ru_nvcsw)); | |
| 157 m.assign ("nivcsw", static_cast<double> (ru.ru_nivcsw)); | |
| 2928 | 158 #endif |
| 159 | |
| 160 #else | |
| 161 | |
| 162 struct tms t; | |
| 163 | |
| 164 times (&t); | |
| 165 | |
| 166 unsigned long ticks; | |
| 167 unsigned long seconds; | |
| 168 unsigned long fraction; | |
| 169 | |
| 170 ticks = t.tms_utime + t.tms_cutime; | |
| 171 fraction = ticks % HZ; | |
| 172 seconds = ticks / HZ; | |
| 173 | |
| 4675 | 174 tv_tmp.assign ("sec", static_cast<double> (seconds)); |
| 175 tv_tmp.assign ("usec", static_cast<double> (fraction * 1e6 / HZ)); | |
| 176 m.assign ("utime", octave_value (tv_tmp)); | |
| 2928 | 177 |
| 178 ticks = t.tms_stime + t.tms_cstime; | |
| 179 fraction = ticks % HZ; | |
| 180 seconds = ticks / HZ; | |
| 181 | |
| 4675 | 182 tv_tmp.assign ("sec", static_cast<double> (seconds)); |
| 183 tv_tmp.assign ("usec", static_cast<double> (fraction * 1e6 / HZ)); | |
| 184 m.assign ("stime", octave_value (tv_tmp)); | |
| 2928 | 185 |
| 4102 | 186 double tmp = lo_ieee_nan_value (); |
| 187 | |
| 4675 | 188 m.assign ("maxrss", tmp); |
| 189 m.assign ("ixrss", tmp); | |
| 190 m.assign ("idrss", tmp); | |
| 191 m.assign ("isrss", tmp); | |
| 192 m.assign ("minflt", tmp); | |
| 193 m.assign ("majflt", tmp); | |
| 194 m.assign ("nswap", tmp); | |
| 195 m.assign ("inblock", tmp); | |
| 196 m.assign ("oublock", tmp); | |
| 197 m.assign ("msgsnd", tmp); | |
| 198 m.assign ("msgrcv", tmp); | |
| 199 m.assign ("nsignals", tmp); | |
| 200 m.assign ("nvcsw", tmp); | |
| 201 m.assign ("nivcsw", tmp); | |
| 2928 | 202 |
| 203 #endif | |
| 204 | |
| 205 return octave_value (m); | |
| 206 } |