48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#include <errno.h>
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#include "log.h"
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#include "parse-util.h"
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#include "procfs-util.h"
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int main(int argc, char *argv[]) {
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char buf[CONST_MAX(FORMAT_TIMESPAN_MAX, FORMAT_BYTES_MAX)];
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nsec_t nsec;
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uint64_t v;
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int r;
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log_parse_environment();
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log_open();
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assert_se(procfs_cpu_get_usage(&nsec) >= 0);
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log_info("Current sytem CPU time: %s", format_timespan(buf, sizeof(buf), nsec/NSEC_PER_USEC, 1));
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assert_se(procfs_memory_get_current(&v) >= 0);
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log_info("Current memory usage: %s", format_bytes(buf, sizeof(buf), v));
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assert_se(procfs_tasks_get_current(&v) >= 0);
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log_info("Current number of tasks: %" PRIu64, v);
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assert_se(procfs_tasks_get_limit(&v) >= 0);
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log_info("Limit of tasks: %" PRIu64, v);
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assert_se(v > 0);
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assert_se(procfs_tasks_set_limit(v) >= 0);
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if (v > 100) {
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uint64_t w;
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r = procfs_tasks_set_limit(v-1);
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assert_se(IN_SET(r, 0, -EPERM, -EACCES, -EROFS));
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assert_se(procfs_tasks_get_limit(&w) >= 0);
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assert_se((r == 0 && w == v - 1) || (r < 0 && w == v));
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assert_se(procfs_tasks_set_limit(v) >= 0);
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assert_se(procfs_tasks_get_limit(&w) >= 0);
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assert_se(v == w);
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}
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return 0;
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}
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