1 files changed, 59 insertions, 0 deletions
diff --git a/src/kernel/tests/lib/tst_timer.c b/src/kernel/tests/lib/tst_timer.c
new file mode 100644
index 0000000..62d8f90
--- /dev/null
+++ b/src/kernel/tests/lib/tst_timer.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2015 Cyril Hrubis <chrubis@suse.cz>
+ */
+
+#include <errno.h>
+
+#define TST_NO_DEFAULT_MAIN
+
+#include "tst_test.h"
+#include "tst_timer.h"
+#include "tst_clocks.h"
+#include "lapi/posix_clocks.h"
+
+static struct timespec start_time, stop_time;
+static clockid_t clock_id;
+
+void tst_timer_check(clockid_t clk_id)
+{
+	if (tst_clock_gettime(clk_id, &start_time)) {
+		if (errno == EINVAL) {
+			tst_brk(TCONF,
+			         "Clock id %s(%u) not supported by kernel",
+				 tst_clock_name(clk_id), clk_id);
+			return;
+		}
+
+		tst_brk(TBROK | TERRNO, "tst_clock_gettime() failed");
+	}
+}
+
+void tst_timer_start(clockid_t clk_id)
+{
+	clock_id = clk_id;
+
+	if (tst_clock_gettime(clock_id, &start_time))
+		tst_res(TWARN | TERRNO, "tst_clock_gettime() failed");
+}
+
+int tst_timer_expired_ms(long long ms)
+{
+	struct timespec cur_time;
+
+	if (tst_clock_gettime(clock_id, &cur_time))
+		tst_res(TWARN | TERRNO, "tst_clock_gettime() failed");
+
+	return tst_timespec_diff_ms(cur_time, start_time) >= ms;
+}
+
+void tst_timer_stop(void)
+{
+	if (tst_clock_gettime(clock_id, &stop_time))
+		tst_res(TWARN | TERRNO, "tst_clock_gettime() failed");
+}
+
+struct timespec tst_timer_elapsed(void)
+{
+	return tst_timespec_diff(stop_time, start_time);
+}