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 *
 * Copyright 2014, Google Inc.
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 * modification, are permitted provided that the following conditions are
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 * notice, this list of conditions and the following disclaimer.
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 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
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#ifndef __GRPC_INTERNAL_CHANNEL_CHILD_CHANNEL_H_
#define __GRPC_INTERNAL_CHANNEL_CHILD_CHANNEL_H_

#include "src/core/channel/channel_stack.h"

/* helper for filters that need to host child channel stacks... handles
   lifetime and upwards propagation cleanly */

const grpc_channel_filter grpc_child_channel_top_filter;

typedef grpc_channel_stack grpc_child_channel;
typedef grpc_call_stack grpc_child_call;

/* filters[0] must be &grpc_child_channel_top_filter */
grpc_child_channel *grpc_child_channel_create(
    grpc_channel_element *parent, const grpc_channel_filter **filters,
    size_t filter_count, const grpc_channel_args *args,
    grpc_mdctx *metadata_context);
void grpc_child_channel_handle_op(grpc_child_channel *channel,
                                  grpc_channel_op *op);
grpc_channel_element *grpc_child_channel_get_bottom_element(
    grpc_child_channel *channel);
void grpc_child_channel_destroy(grpc_child_channel *channel,
                                int wait_for_callbacks);

grpc_child_call *grpc_child_channel_create_call(grpc_child_channel *channel,
                                                grpc_call_element *parent);
grpc_call_element *grpc_child_call_get_top_element(grpc_child_call *call);
void grpc_child_call_destroy(grpc_child_call *call);

#endif /* __GRPC_INTERNAL_CHANNEL_CHILD_CHANNEL_H_ */