55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
// Copyright (c) Facebook, Inc. and its affiliates.
|
|
//
|
|
// 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.
|
|
|
|
#pragma once
|
|
|
|
#include <folly/ExceptionWrapper.h>
|
|
#include <condition_variable>
|
|
#include <mutex>
|
|
#include "rsocket/Payload.h"
|
|
|
|
#include "yarpl/Flowable.h"
|
|
#include "yarpl/flowable/Subscriber.h"
|
|
|
|
/**
|
|
* Subscriber that logs all events.
|
|
* Request 5 items to begin with, then 3 more after each receipt of 3.
|
|
*/
|
|
namespace rsocket_example {
|
|
class ExampleSubscriber : public yarpl::flowable::Subscriber<rsocket::Payload> {
|
|
public:
|
|
~ExampleSubscriber();
|
|
ExampleSubscriber(int initialRequest, int numToTake);
|
|
|
|
void onSubscribe(std::shared_ptr<yarpl::flowable::Subscription>
|
|
subscription) noexcept override;
|
|
void onNext(rsocket::Payload) noexcept override;
|
|
void onComplete() noexcept override;
|
|
void onError(folly::exception_wrapper ex) noexcept override;
|
|
|
|
void awaitTerminalEvent();
|
|
|
|
private:
|
|
int initialRequest_;
|
|
int thresholdForRequest_;
|
|
int numToTake_;
|
|
int requested_;
|
|
int received_;
|
|
std::shared_ptr<yarpl::flowable::Subscription> subscription_;
|
|
bool terminated_{false};
|
|
std::mutex m_;
|
|
std::condition_variable terminalEventCV_;
|
|
};
|
|
} // namespace rsocket_example
|