lb_policy_registry.h

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/*
 *
 * Copyright 2015 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_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H
#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H
 
#include <grpc/support/port_platform.h>
 
#include <memory>
 
#include "src/core/ext/filters/client_channel/lb_policy.h"
#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
#include "src/core/lib/gprpp/orphanable.h"
#include "src/core/lib/gprpp/ref_counted_ptr.h"
#include "src/core/lib/iomgr/error.h"
#include "src/core/lib/json/json.h"
 
namespace grpc_core {
 
class LoadBalancingPolicyRegistry {
 public:
  class Builder {
   public:
    static void InitRegistry();
    static void ShutdownRegistry();
 
    static void RegisterLoadBalancingPolicyFactory(
        std::unique_ptr<LoadBalancingPolicyFactory> factory);
  };
 
  static OrphanablePtr<LoadBalancingPolicy> CreateLoadBalancingPolicy(
      const char* name, LoadBalancingPolicy::Args args);
 
  static bool LoadBalancingPolicyExists(const char* name,
                                        bool* requires_config);
 
  static RefCountedPtr<LoadBalancingPolicy::Config> ParseLoadBalancingConfig(
      const Json& json, grpc_error_handle* error);
};
 
}  // namespace grpc_core
 
#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H */