From: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
See code comment for details.
Signed-off-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
Signed-off-by: Stefano Garzarella <sgarzare@xxxxxxxxxx>
---
tools/testing/vsock/util.c | 18 ++++++++++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)
diff --git a/tools/testing/vsock/util.c b/tools/testing/vsock/util.c
index f838bcee3589..4280a56ba677 100644
--- a/tools/testing/vsock/util.c
+++ b/tools/testing/vsock/util.c
@@ -161,10 +161,24 @@ void run_tests(const struct test_case *test_cases,
printf("%s...", test_cases[i].name);
fflush(stdout);
- if (opts->mode == TEST_MODE_CLIENT)
+ if (opts->mode == TEST_MODE_CLIENT) {
+ /* Full barrier before executing the next test. This
+ * ensures that client and server are executing the
+ * same test case. In particular, it means whoever is
+ * faster will not see the peer still executing the
+ * last test. This is important because port numbers
+ * can be used by multiple test cases.
+ */
+ control_expectln("NEXT");
+ control_writeln("NEXT");
+
run = test_cases[i].run_client;
- else
+ } else {
+ control_writeln("NEXT");
+ control_expectln("NEXT");
+
run = test_cases[i].run_server;
+ }
if (run)
run(opts);
--
2.20.1
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