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+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef __GRPC_INTERNAL_SURFACE_CHANNEL_H__
+#define __GRPC_INTERNAL_SURFACE_CHANNEL_H__
+
+#include "src/core/channel/channel_stack.h"
+
+grpc_channel *grpc_channel_create_from_filters(
+ const grpc_channel_filter **filters, size_t count,
+ const grpc_channel_args *args, grpc_mdctx *mdctx, int is_client);
+
+grpc_channel_stack *grpc_channel_get_channel_stack(grpc_channel *channel);
+grpc_mdctx *grpc_channel_get_metadata_context(grpc_channel *channel);
+grpc_mdstr *grpc_channel_get_status_string(grpc_channel *channel);
+grpc_mdstr *grpc_channel_get_message_string(grpc_channel *channel);
+
+void grpc_channel_internal_ref(grpc_channel *channel);
+void grpc_channel_internal_unref(grpc_channel *channel);
+
+#endif /* __GRPC_INTERNAL_SURFACE_CHANNEL_H__ */