oob_backend_metric.cc | Explore in Territory

//
// Copyright 2022 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.
//

#include <grpc/support/port_platform.h>

#include "src/core/ext/filters/client_channel/lb_policy/oob_backend_metric.h"

#include <string.h>

#include <algorithm>
#include <set>
#include <string>
#include <utility>
#include <vector>

#include "absl/status/status.h"
#include "absl/strings/string_view.h"
#include "absl/types/optional.h"
#include "google/protobuf/duration.upb.h"
#include "upb/upb.hpp"
#include "xds/service/orca/v3/orca.upb.h"

#include <grpc/impl/connectivity_state.h>
#include <grpc/slice.h>
#include <grpc/status.h>
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/time.h>

#include "src/core/ext/filters/client_channel/backend_metric.h"
#include "src/core/ext/filters/client_channel/client_channel_channelz.h"
#include "src/core/ext/filters/client_channel/lb_policy/oob_backend_metric_internal.h"
#include "src/core/ext/filters/client_channel/subchannel.h"
#include "src/core/ext/filters/client_channel/subchannel_stream_client.h"
#include "src/core/lib/channel/channel_trace.h"
#include "src/core/lib/debug/trace.h"
#include "src/core/lib/gprpp/debug_location.h"
#include "src/core/lib/gprpp/memory.h"
#include "src/core/lib/gprpp/orphanable.h"
#include "src/core/lib/gprpp/ref_counted_ptr.h"
#include "src/core/lib/gprpp/sync.h"
#include "src/core/lib/gprpp/time.h"
#include "src/core/lib/iomgr/closure.h"
#include "src/core/lib/iomgr/error.h"
#include "src/core/lib/iomgr/exec_ctx.h"
#include "src/core/lib/iomgr/iomgr_fwd.h"
#include "src/core/lib/iomgr/pollset_set.h"
#include "src/core/lib/slice/slice.h"

namespace grpc_core {

TraceFlag grpc_orca_client_trace(false, "orca_client");

//
// OrcaProducer::ConnectivityWatcher
//

class OrcaProducer::ConnectivityWatcher
    : public Subchannel::ConnectivityStateWatcherInterface { … };

//
// OrcaProducer::OrcaStreamEventHandler
//

class OrcaProducer::OrcaStreamEventHandler
    : public SubchannelStreamClient::CallEventHandler { … };

//
// OrcaProducer
//

void OrcaProducer::Start(RefCountedPtr<Subchannel> subchannel) { … }

void OrcaProducer::Orphan() { … }

void OrcaProducer::AddWatcher(OrcaWatcher* watcher) { … }

void OrcaProducer::RemoveWatcher(OrcaWatcher* watcher) { … }

Duration OrcaProducer::GetMinIntervalLocked() const { … }

void OrcaProducer::MaybeStartStreamLocked() { … }

void OrcaProducer::NotifyWatchers(
    const BackendMetricData& backend_metric_data) { … }

void OrcaProducer::OnConnectivityStateChange(grpc_connectivity_state state) { … }

//
// OrcaWatcher
//

OrcaWatcher::~OrcaWatcher() { … }

void OrcaWatcher::SetSubchannel(Subchannel* subchannel) { … }

std::unique_ptr<SubchannelInterface::DataWatcherInterface>
MakeOobBackendMetricWatcher(Duration report_interval,
                            std::unique_ptr<OobBackendMetricWatcher> watcher) { … }

}  // namespace grpc_core
chromium/third_party/grpc/src/src/core/ext/filters/client_channel/lb_policy/oob_backend_metric.cc
