summaryrefslogtreecommitdiffstats
path: root/builtins/times.def
blob: f31f43331e96a8cb5a5961d75c4696ef0920e229 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
This file is times.def, from which is created times.c.
It implements the builtin "times" in Bash.

Copyright (C) 1987-2009 Free Software Foundation, Inc.

This file is part of GNU Bash, the Bourne Again SHell.

Bash is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Bash is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Bash.  If not, see <http://www.gnu.org/licenses/>.

$PRODUCES times.c

$BUILTIN times
$FUNCTION times_builtin
$SHORT_DOC times
Display process times.

Prints the accumulated user and system times for the shell and all of its
child processes.

Exit Status:
Always succeeds.
$END

#include <config.h>

#if defined (HAVE_UNISTD_H)
#  ifdef _MINIX
#    include <sys/types.h>
#  endif
#  include <unistd.h>
#endif

#include <stdio.h>
#include "../bashtypes.h"
#include "../shell.h"

#include <posixtime.h>

#if defined (HAVE_SYS_TIMES_H)
#  include <sys/times.h>
#endif /* HAVE_SYS_TIMES_H */

#if defined (HAVE_SYS_RESOURCE_H) && !defined (RLIMTYPE)
#  include <sys/resource.h>
#endif

#include "common.h"

/* Print the totals for system and user time used. */
int
times_builtin (list)
     WORD_LIST *list;
{
#if defined (HAVE_GETRUSAGE) && defined (HAVE_TIMEVAL) && defined (RUSAGE_SELF)
  struct rusage self, kids;

  USE_VAR(list);

  if (no_options (list))
    return (EX_USAGE);

  getrusage (RUSAGE_SELF, &self);
  getrusage (RUSAGE_CHILDREN, &kids);	/* terminated child processes */

  print_timeval (stdout, &self.ru_utime);
  putchar (' ');
  print_timeval (stdout, &self.ru_stime);
  putchar ('\n');
  print_timeval (stdout, &kids.ru_utime);
  putchar (' ');
  print_timeval (stdout, &kids.ru_stime);
  putchar ('\n');

#else
#  if defined (HAVE_TIMES)
  /* This uses the POSIX.1/XPG5 times(2) interface, which fills in a 
     `struct tms' with values of type clock_t. */
  struct tms t;

  USE_VAR(list);

  if (no_options (list))
    return (EX_USAGE);

  times (&t);

  print_clock_t (stdout, t.tms_utime);
  putchar (' ');
  print_clock_t (stdout, t.tms_stime);
  putchar ('\n');
  print_clock_t (stdout, t.tms_cutime);
  putchar (' ');
  print_clock_t (stdout, t.tms_cstime);
  putchar ('\n');

#  else /* !HAVE_TIMES */

  USE_VAR(list);

  if (no_options (list))
    return (EX_USAGE);
  printf ("0.00 0.00\n0.00 0.00\n");

#  endif /* HAVE_TIMES */
#endif /* !HAVE_TIMES */

  return (sh_chkwrite (EXECUTION_SUCCESS));
}