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//
// Copyright 2016, 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_CORE_LIB_TRANSPORT_SERVICE_CONFIG_H
#define GRPC_CORE_LIB_TRANSPORT_SERVICE_CONFIG_H
#include <grpc/impl/codegen/grpc_types.h>
#include "src/core/lib/json/json.h"
#include "src/core/lib/transport/mdstr_hash_table.h"
typedef struct grpc_service_config grpc_service_config;
grpc_service_config* grpc_service_config_create(const char* json_string);
void grpc_service_config_destroy(grpc_service_config* service_config);
/// Gets the LB policy name from \a service_config.
/// Returns NULL if no LB policy name was specified.
/// Caller does NOT take ownership.
const char* grpc_service_config_get_lb_policy_name(
const grpc_service_config* service_config);
/// Creates a method config table based on the data in \a json.
/// The table's keys are request paths. The table's value type is
/// returned by \a create_value(), based on data parsed from the JSON tree.
/// \a vtable provides methods used to manage the values.
/// Returns NULL on error.
grpc_mdstr_hash_table* grpc_service_config_create_method_config_table(
grpc_exec_ctx* exec_ctx, const grpc_service_config* service_config,
void* (*create_value)(const grpc_json* method_config_json),
const grpc_mdstr_hash_table_vtable* vtable);
/// A helper function for looking up values in the table returned by
/// \a grpc_service_config_create_method_config_table().
/// Gets the method config for the specified \a path, which should be of
/// the form "/service/method".
/// Returns NULL if the method has no config.
/// Caller does NOT own a reference to the result.
void* grpc_method_config_table_get(grpc_exec_ctx* exec_ctx,
const grpc_mdstr_hash_table* table,
const grpc_mdstr* path);
#endif /* GRPC_CORE_LIB_TRANSPORT_SERVICE_CONFIG_H */
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