summaryrefslogtreecommitdiffstats
path: root/src/test/test-procfs-util.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/test/test-procfs-util.c')
-rw-r--r--src/test/test-procfs-util.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/src/test/test-procfs-util.c b/src/test/test-procfs-util.c
new file mode 100644
index 0000000..1d06129
--- /dev/null
+++ b/src/test/test-procfs-util.c
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <errno.h>
+
+#include "log.h"
+#include "parse-util.h"
+#include "procfs-util.h"
+
+int main(int argc, char *argv[]) {
+ char buf[CONST_MAX(FORMAT_TIMESPAN_MAX, FORMAT_BYTES_MAX)];
+ nsec_t nsec;
+ uint64_t v;
+ int r;
+
+ log_parse_environment();
+ log_open();
+
+ assert_se(procfs_cpu_get_usage(&nsec) >= 0);
+ log_info("Current system CPU time: %s", format_timespan(buf, sizeof(buf), nsec/NSEC_PER_USEC, 1));
+
+ assert_se(procfs_memory_get_used(&v) >= 0);
+ log_info("Current memory usage: %s", format_bytes(buf, sizeof(buf), v));
+
+ assert_se(procfs_tasks_get_current(&v) >= 0);
+ log_info("Current number of tasks: %" PRIu64, v);
+
+ assert_se(procfs_tasks_get_limit(&v) >= 0);
+ log_info("Limit of tasks: %" PRIu64, v);
+ assert_se(v > 0);
+ assert_se(procfs_tasks_set_limit(v) >= 0);
+
+ if (v > 100) {
+ uint64_t w;
+ r = procfs_tasks_set_limit(v-1);
+ assert_se(IN_SET(r, 0, -EPERM, -EACCES, -EROFS));
+
+ assert_se(procfs_tasks_get_limit(&w) >= 0);
+ assert_se((r == 0 && w == v - 1) || (r < 0 && w == v));
+
+ assert_se(procfs_tasks_set_limit(v) >= 0);
+
+ assert_se(procfs_tasks_get_limit(&w) >= 0);
+ assert_se(v == w);
+ }
+
+ return 0;
+}