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-rw-r--r--time/tst-ftime.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/time/tst-ftime.c b/time/tst-ftime.c
new file mode 100644
index 00000000000..78fb2f68c14
--- /dev/null
+++ b/time/tst-ftime.c
@@ -0,0 +1,59 @@
+/* Verify that ftime is sane.
+ Copyright (C) 2014 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sys/timeb.h>
+#include <stdio.h>
+
+static int
+do_test (void)
+{
+ struct timeb prev, curr = {.time = 0, .millitm = 0};
+ int sec = 0;
+
+ while (sec != 3)
+ {
+ prev = curr;
+
+ if (ftime (&curr))
+ {
+ printf ("ftime returned an error\n");
+ return 1;
+ }
+
+ if (curr.time < prev.time)
+ {
+ printf ("ftime's time flowed backwards\n");
+ return 1;
+ }
+
+ if (curr.time == prev.time
+ && curr.millitm < prev.millitm)
+ {
+ printf ("ftime's millitm flowed backwards\n");
+ return 1;
+ }
+
+ if (curr.time > prev.time)
+ sec ++;
+ }
+ return 0;
+}
+
+#define TIMEOUT 3
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"