1 files changed, 42 insertions, 0 deletions
diff --git a/test/core/util/port_isolated_runtime_environment.cc b/test/core/util/port_isolated_runtime_environment.cc
new file mode 100644
index 0000000000..5f0585e9fb
--- /dev/null
+++ b/test/core/util/port_isolated_runtime_environment.cc
@@ -0,0 +1,42 @@
+/*
+ *
+ * Copyright 2017 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+/* When running tests on remote machines, the framework takes a round-robin pick
+ * of a port within certain range. There is no need to recycle ports.
+ */
+#include "src/core/lib/iomgr/port.h"
+#include "test/core/util/test_config.h"
+#if defined(GRPC_PORT_ISOLATED_RUNTIME)
+
+#include "test/core/util/port.h"
+
+#define LOWER_PORT 49152
+static int s_allocated_port = LOWER_PORT;
+
+int grpc_pick_unused_port_or_die(void) {
+  int allocated_port = s_allocated_port++;
+  if (s_allocated_port == 65536) {
+    s_allocated_port = LOWER_PORT;
+  }
+
+  return allocated_port;
+}
+
+void grpc_recycle_unused_port(int port) { (void)port; }
+
+#endif /* GRPC_PORT_ISOLATED_RUNTIME */