--- /dev/null
+/*
+ *
+ * Copyright 2016 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.
+ *
+ */
+
+/* This file has empty implementation of all the functions exposed by the cronet
+library, so we can build it in all environments */
+
+#include <grpc/support/port_platform.h>
+
+#include <stdbool.h>
+
+#include <grpc/support/log.h>
+
+#include "third_party/objective_c/Cronet/bidirectional_stream_c.h"
+
+#ifdef GRPC_COMPILE_WITH_CRONET
+/* link with the real CRONET library in the build system */
+#else
+/* Dummy implementation of cronet API just to test for build-ability */
+bidirectional_stream* bidirectional_stream_create(
+ stream_engine* engine, void* annotation,
+ bidirectional_stream_callback* callback) {
+ GPR_ASSERT(0);
+ return nullptr;
+}
+
+int bidirectional_stream_destroy(bidirectional_stream* stream) {
+ GPR_ASSERT(0);
+ return 0;
+}
+
+int bidirectional_stream_start(bidirectional_stream* stream, const char* url,
+ int priority, const char* method,
+ const bidirectional_stream_header_array* headers,
+ bool end_of_stream) {
+ GPR_ASSERT(0);
+ return 0;
+}
+
+int bidirectional_stream_read(bidirectional_stream* stream, char* buffer,
+ int capacity) {
+ GPR_ASSERT(0);
+ return 0;
+}
+
+int bidirectional_stream_write(bidirectional_stream* stream, const char* buffer,
+ int count, bool end_of_stream) {
+ GPR_ASSERT(0);
+ return 0;
+}
+
+void bidirectional_stream_cancel(bidirectional_stream* stream) {
+ GPR_ASSERT(0);
+}
+
+void bidirectional_stream_disable_auto_flush(bidirectional_stream* stream,
+ bool disable_auto_flush) {
+ GPR_ASSERT(0);
+}
+
+void bidirectional_stream_delay_request_headers_until_flush(
+ bidirectional_stream* stream, bool delay_headers_until_flush) {
+ GPR_ASSERT(0);
+}
+
+void bidirectional_stream_flush(bidirectional_stream* stream) { GPR_ASSERT(0); }
+
+#endif /* GRPC_COMPILE_WITH_CRONET */