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ExampleSubscriber.h
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43 lines (36 loc) · 1.12 KB
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// Copyright 2004-present Facebook. All Rights Reserved.
#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(yarpl::Reference<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_;
yarpl::Reference<yarpl::flowable::Subscription> subscription_;
bool terminated_{false};
std::mutex m_;
std::condition_variable terminalEventCV_;
};
}