X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=app%2Ftest%2Ftest_cycles.c;fp=app%2Ftest%2Ftest_cycles.c;h=f1897979d22fe7d91e07c23ba718b8e9a488bf62;hb=3d9b72106bd664b1267533e7278ff817f942e3c6;hp=f6c043a463748adb9bd036ca4978a9fbcfdd3b5f;hpb=a83862b166241910d0474f801cb2e6afa4c6875b;p=deb_dpdk.git

diff --git a/app/test/test_cycles.c b/app/test/test_cycles.c
index f6c043a4..f1897979 100644
--- a/app/test/test_cycles.c
+++ b/app/test/test_cycles.c
@@ -90,3 +90,48 @@ test_cycles(void)
 }
 
 REGISTER_TEST_COMMAND(cycles_autotest, test_cycles);
+
+/*
+ * rte_delay_us_callback test
+ *
+ * - check if callback is correctly registered/unregistered
+ *
+ */
+
+static unsigned int pattern;
+static void my_rte_delay_us(unsigned int us)
+{
+	pattern += us;
+}
+
+static int
+test_user_delay_us(void)
+{
+	pattern = 0;
+
+	rte_delay_us(2);
+	if (pattern != 0)
+		return -1;
+
+	/* register custom delay function */
+	rte_delay_us_callback_register(my_rte_delay_us);
+
+	rte_delay_us(2);
+	if (pattern != 2)
+		return -1;
+
+	rte_delay_us(3);
+	if (pattern != 5)
+		return -1;
+
+	/* restore original delay function */
+	rte_delay_us_callback_register(rte_delay_us_block);
+
+	rte_delay_us(3);
+	if (pattern != 5)
+		return -1;
+
+	return 0;
+}
+
+REGISTER_TEST_COMMAND(user_delay_us, test_user_delay_us);