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Commit | Line | Data |
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9aef9a67 LP |
1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
2 | ||
3 | #include <errno.h> | |
4 | ||
5 | #include "log.h" | |
a04fcf17 | 6 | #include "parse-util.h" |
9aef9a67 LP |
7 | #include "procfs-util.h" |
8 | ||
9 | int main(int argc, char *argv[]) { | |
a04fcf17 LP |
10 | char buf[CONST_MAX(FORMAT_TIMESPAN_MAX, FORMAT_BYTES_MAX)]; |
11 | nsec_t nsec; | |
9aef9a67 LP |
12 | uint64_t v; |
13 | int r; | |
14 | ||
15 | log_parse_environment(); | |
16 | log_open(); | |
17 | ||
a04fcf17 | 18 | assert_se(procfs_cpu_get_usage(&nsec) >= 0); |
3fe91079 | 19 | log_info("Current system CPU time: %s", format_timespan(buf, sizeof(buf), nsec/NSEC_PER_USEC, 1)); |
a04fcf17 | 20 | |
c482724a | 21 | assert_se(procfs_memory_get_used(&v) >= 0); |
a04fcf17 LP |
22 | log_info("Current memory usage: %s", format_bytes(buf, sizeof(buf), v)); |
23 | ||
9aef9a67 LP |
24 | assert_se(procfs_tasks_get_current(&v) >= 0); |
25 | log_info("Current number of tasks: %" PRIu64, v); | |
26 | ||
27 | assert_se(procfs_tasks_get_limit(&v) >= 0); | |
28 | log_info("Limit of tasks: %" PRIu64, v); | |
29 | assert_se(v > 0); | |
30 | assert_se(procfs_tasks_set_limit(v) >= 0); | |
31 | ||
32 | if (v > 100) { | |
33 | uint64_t w; | |
34 | r = procfs_tasks_set_limit(v-1); | |
35 | assert_se(IN_SET(r, 0, -EPERM, -EACCES, -EROFS)); | |
36 | ||
37 | assert_se(procfs_tasks_get_limit(&w) >= 0); | |
38 | assert_se((r == 0 && w == v - 1) || (r < 0 && w == v)); | |
39 | ||
40 | assert_se(procfs_tasks_set_limit(v) >= 0); | |
41 | ||
42 | assert_se(procfs_tasks_get_limit(&w) >= 0); | |
43 | assert_se(v == w); | |
44 | } | |
45 | ||
46 | return 0; | |
47 | } |