chromium/third_party/grpc/src/src/core/lib/load_balancing/subchannel_interface.h

//
// Copyright 2019 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_SRC_CORE_LIB_LOAD_BALANCING_SUBCHANNEL_INTERFACE_H
#define GRPC_SRC_CORE_LIB_LOAD_BALANCING_SUBCHANNEL_INTERFACE_H

#include <grpc/support/port_platform.h>

#include <memory>
#include <utility>

#include "absl/status/status.h"

#include <grpc/impl/connectivity_state.h>

#include "src/core/lib/gprpp/dual_ref_counted.h"
#include "src/core/lib/gprpp/ref_counted_ptr.h"
#include "src/core/lib/iomgr/iomgr_fwd.h"

namespace grpc_core {

// The interface for subchannels that is exposed to LB policy implementations.
class SubchannelInterface : public DualRefCounted<SubchannelInterface> { … };

// A class that delegates to another subchannel, to be used in cases
// where an LB policy needs to wrap a subchannel.
class DelegatingSubchannel : public SubchannelInterface { … };

}  // namespace grpc_core

#endif  // GRPC_SRC_CORE_LIB_LOAD_BALANCING_SUBCHANNEL_INTERFACE_H