1 | /* Define struct rusage. |
2 | Copyright (C) 1994-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #ifndef __rusage_defined |
20 | #define __rusage_defined 1 |
21 | |
22 | #include <bits/types.h> |
23 | #include <bits/types/struct_timeval.h> |
24 | |
25 | /* Structure which says how much of each resource has been used. If |
26 | the system does not keep track of a particular value, the struct |
27 | field is always zero. */ |
28 | |
29 | /* The purpose of all the unions is to have the kernel-compatible layout |
30 | while keeping the API type as 'long int', and among machines where |
31 | __syscall_slong_t is not 'long int', this only does the right thing |
32 | for little-endian ones, like x32. */ |
33 | struct rusage |
34 | { |
35 | /* Total amount of user time used. */ |
36 | struct timeval ru_utime; |
37 | /* Total amount of system time used. */ |
38 | struct timeval ru_stime; |
39 | /* Maximum resident set size (in kilobytes). */ |
40 | __extension__ union |
41 | { |
42 | long int ; |
43 | __syscall_slong_t ; |
44 | }; |
45 | /* Amount of sharing of text segment memory |
46 | with other processes (kilobyte-seconds). */ |
47 | __extension__ union |
48 | { |
49 | long int ; |
50 | __syscall_slong_t ; |
51 | }; |
52 | /* Amount of data segment memory used (kilobyte-seconds). */ |
53 | __extension__ union |
54 | { |
55 | long int ; |
56 | __syscall_slong_t ; |
57 | }; |
58 | /* Amount of stack memory used (kilobyte-seconds). */ |
59 | __extension__ union |
60 | { |
61 | long int ; |
62 | __syscall_slong_t ; |
63 | }; |
64 | /* Number of soft page faults (i.e. those serviced by reclaiming |
65 | a page from the list of pages awaiting reallocation. */ |
66 | __extension__ union |
67 | { |
68 | long int ru_minflt; |
69 | __syscall_slong_t __ru_minflt_word; |
70 | }; |
71 | /* Number of hard page faults (i.e. those that required I/O). */ |
72 | __extension__ union |
73 | { |
74 | long int ru_majflt; |
75 | __syscall_slong_t __ru_majflt_word; |
76 | }; |
77 | /* Number of times a process was swapped out of physical memory. */ |
78 | __extension__ union |
79 | { |
80 | long int ru_nswap; |
81 | __syscall_slong_t __ru_nswap_word; |
82 | }; |
83 | /* Number of input operations via the file system. Note: This |
84 | and `ru_oublock' do not include operations with the cache. */ |
85 | __extension__ union |
86 | { |
87 | long int ru_inblock; |
88 | __syscall_slong_t __ru_inblock_word; |
89 | }; |
90 | /* Number of output operations via the file system. */ |
91 | __extension__ union |
92 | { |
93 | long int ru_oublock; |
94 | __syscall_slong_t __ru_oublock_word; |
95 | }; |
96 | /* Number of IPC messages sent. */ |
97 | __extension__ union |
98 | { |
99 | long int ru_msgsnd; |
100 | __syscall_slong_t __ru_msgsnd_word; |
101 | }; |
102 | /* Number of IPC messages received. */ |
103 | __extension__ union |
104 | { |
105 | long int ru_msgrcv; |
106 | __syscall_slong_t __ru_msgrcv_word; |
107 | }; |
108 | /* Number of signals delivered. */ |
109 | __extension__ union |
110 | { |
111 | long int ru_nsignals; |
112 | __syscall_slong_t __ru_nsignals_word; |
113 | }; |
114 | /* Number of voluntary context switches, i.e. because the process |
115 | gave up the process before it had to (usually to wait for some |
116 | resource to be available). */ |
117 | __extension__ union |
118 | { |
119 | long int ru_nvcsw; |
120 | __syscall_slong_t __ru_nvcsw_word; |
121 | }; |
122 | /* Number of involuntary context switches, i.e. a higher priority process |
123 | became runnable or the current process used up its time slice. */ |
124 | __extension__ union |
125 | { |
126 | long int ru_nivcsw; |
127 | __syscall_slong_t __ru_nivcsw_word; |
128 | }; |
129 | }; |
130 | |
131 | #endif |
132 | |