builtins/times.def

   1 This file is times.def, from which is created times.c.
   2 It implements the builtin "times" in Bash.
   3
   4 Copyright (C) 1987-2002 Free Software Foundation, Inc.
   5
   6 This file is part of GNU Bash, the Bourne Again SHell.
   7
   8 Bash is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 2, or (at your option) any later
  11 version.
  12
  13 Bash is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License along
  19 with Bash; see the file COPYING.  If not, write to the Free Software
  20 Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
  21
  22 $PRODUCES times.c
  23
  24 $BUILTIN times
  25 $FUNCTION times_builtin
  26 $SHORT_DOC times
  27 Print the accumulated user and system times for processes run from
  28 the shell.
  29 $END
  30
  31 #include <config.h>
  32
  33 #if defined (HAVE_UNISTD_H)
  34 #  ifdef _MINIX
  35 #    include <sys/types.h>
  36 #  endif
  37 #  include <unistd.h>
  38 #endif
  39
  40 #include <stdio.h>
  41 #include "../bashtypes.h"
  42 #include "../shell.h"
  43
  44 #include <posixtime.h>
  45
  46 #if defined (HAVE_SYS_TIMES_H)
  47 #  include <sys/times.h>
  48 #endif /* HAVE_SYS_TIMES_H */
  49
  50 #if defined (HAVE_SYS_RESOURCE_H) && !defined (RLIMTYPE)
  51 #  include <sys/resource.h>
  52 #endif
  53
  54 #include "common.h"
  55
  56 /* Print the totals for system and user time used. */
  57 int
  58 times_builtin (list)
  59      WORD_LIST *list;
  60 {
  61 #if defined (HAVE_GETRUSAGE) && defined (HAVE_TIMEVAL) && defined (RUSAGE_SELF)
  62   struct rusage self, kids;
  63
  64   USE_VAR(list);
  65
  66   if (no_options (list))
  67     return (EX_USAGE);
  68
  69   getrusage (RUSAGE_SELF, &self);
  70   getrusage (RUSAGE_CHILDREN, &kids);   /* terminated child processes */
  71
  72   print_timeval (stdout, &self.ru_utime);
  73   putchar (' ');
  74   print_timeval (stdout, &self.ru_stime);
  75   putchar ('\n');
  76   print_timeval (stdout, &kids.ru_utime);
  77   putchar (' ');
  78   print_timeval (stdout, &kids.ru_stime);
  79   putchar ('\n');
  80
  81 #else
  82 #  if defined (HAVE_TIMES)
  83   /* This uses the POSIX.1/XPG5 times(2) interface, which fills in a
  84      `struct tms' with values of type clock_t. */
  85   struct tms t;
  86
  87   USE_VAR(list);
  88
  89   if (no_options (list))
  90     return (EX_USAGE);
  91
  92   times (&t);
  93
  94   print_clock_t (stdout, t.tms_utime);
  95   putchar (' ');
  96   print_clock_t (stdout, t.tms_stime);
  97   putchar ('\n');
  98   print_clock_t (stdout, t.tms_cutime);
  99   putchar (' ');
 100   print_clock_t (stdout, t.tms_cstime);
 101   putchar ('\n');
 102
 103 #  else /* !HAVE_TIMES */
 104
 105   USE_VAR(list);
 106
 107   if (no_options (list))
 108     return (EX_USAGE);
 109   printf ("0.00 0.00\n0.00 0.00\n");
 110
 111 #  endif /* HAVE_TIMES */
 112 #endif /* !HAVE_TIMES */
 113
 114   return (EXECUTION_SUCCESS);
 115 }