1 | /* Copyright (C) 1991-2017 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ |
17 | |
18 | #ifndef _SYS_VTIMES_H |
19 | #define _SYS_VTIMES_H 1 |
20 | |
21 | #include <features.h> |
22 | |
23 | __BEGIN_DECLS |
24 | |
25 | /* This interface is obsolete; use `getrusage' instead. */ |
26 | |
27 | /* Granularity of the `vm_utime' and `vm_stime' fields of a `struct vtimes'. |
28 | (This is the frequency of the machine's power supply, in Hz.) */ |
29 | #define VTIMES_UNITS_PER_SECOND 60 |
30 | |
31 | struct vtimes |
32 | { |
33 | /* User time used in units of 1/VTIMES_UNITS_PER_SECOND seconds. */ |
34 | int vm_utime; |
35 | /* System time used in units of 1/VTIMES_UNITS_PER_SECOND seconds. */ |
36 | int vm_stime; |
37 | |
38 | /* Amount of data and stack memory used (kilobyte-seconds). */ |
39 | unsigned int ; |
40 | /* Amount of text memory used (kilobyte-seconds). */ |
41 | unsigned int ; |
42 | /* Maximum resident set size (text, data, and stack) (kilobytes). */ |
43 | int ; |
44 | |
45 | /* Number of hard page faults (i.e. those that required I/O). */ |
46 | int vm_majflt; |
47 | /* Number of soft page faults (i.e. those serviced by reclaiming |
48 | a page from the list of pages awaiting reallocation. */ |
49 | int vm_minflt; |
50 | |
51 | /* Number of times a process was swapped out of physical memory. */ |
52 | int vm_nswap; |
53 | |
54 | /* Number of input operations via the file system. Note: This |
55 | and `ru_oublock' do not include operations with the cache. */ |
56 | int vm_inblk; |
57 | /* Number of output operations via the file system. */ |
58 | int vm_oublk; |
59 | }; |
60 | |
61 | /* If CURRENT is not NULL, write statistics for the current process into |
62 | *CURRENT. If CHILD is not NULL, write statistics for all terminated child |
63 | processes into *CHILD. Returns 0 for success, -1 for failure. */ |
64 | extern int vtimes (struct vtimes * __current, struct vtimes * __child) __THROW; |
65 | |
66 | __END_DECLS |
67 | |
68 | #endif /* sys/vtimes.h */ |
69 | |