--- /dev/null
+/*
+ *
+ * Copyright 2018 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.
+ *
+ */
+
+#ifndef GRPC_CORE_LIB_IOMGR_ERROR_CFSTREAM_H
+#define GRPC_CORE_LIB_IOMGR_ERROR_CFSTREAM_H
+
+#ifdef GRPC_CFSTREAM
+// Create an error from Apple Core Foundation CFError object
+#define GRPC_ERROR_CREATE_FROM_CFERROR(error, desc) \
+ grpc_error_create_from_cferror(__FILE__, __LINE__, \
+ static_cast<void*>((error)), (desc))
+grpc_error* grpc_error_create_from_cferror(const char* file, int line,
+ void* arg, const char* desc);
+#endif /* GRPC_CFSTREAM */
+
+#endif /* GRPC_CORE_LIB_IOMGR_ERROR_CFSTREAM_H */