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/*
* Copyright (c) 2021 Cisco and/or 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 <hicn/transport/config.h>
#include <hicn/transport/core/asio_wrapper.h>
#include <hicn/transport/core/content_object.h>
#include <hicn/transport/core/interest.h>
#include <hicn/transport/core/name.h>
#include <hicn/transport/interfaces/portal.h>
#include <hicn/transport/portability/portability.h>
#include <utils/deadline_timer.h>
namespace transport {
namespace core {
class HicnForwarderInterface;
class VPPForwarderInterface;
class RawSocketInterface;
class Portal;
using OnContentObjectCallback = interface::Portal::OnContentObjectCallback;
using OnInterestTimeoutCallback = interface::Portal::OnInterestTimeoutCallback;
class PendingInterest {
friend class Portal;
public:
using Ptr = utils::ObjectPool<PendingInterest>::Ptr;
PendingInterest(asio::io_service &io_service, const Interest::Ptr &interest)
: interest_(interest), timer_(io_service) {}
PendingInterest(asio::io_service &io_service, const Interest::Ptr &interest,
OnContentObjectCallback &&on_content_object,
OnInterestTimeoutCallback &&on_interest_timeout)
: interest_(interest),
timer_(io_service),
on_content_object_callback_(std::move(on_content_object)),
on_interest_timeout_callback_(std::move(on_interest_timeout)) {}
~PendingInterest() = default;
template <typename Handler>
void startCountdown(uint32_t lifetime, Handler &&cb) {
timer_.expires_from_now(std::chrono::milliseconds(lifetime));
timer_.async_wait(std::forward<Handler>(cb));
}
void cancelTimer() {
try {
timer_.cancel();
} catch (asio::system_error &e) {
// do nothing
}
}
Interest::Ptr &&getInterest() { return std::move(interest_); }
const Interest::Ptr &getInterestReference() const { return interest_; }
void setInterest(const Interest::Ptr &interest) { interest_ = interest; }
const OnContentObjectCallback &getOnDataCallback() const {
return on_content_object_callback_;
}
void setOnContentObjectCallback(OnContentObjectCallback &&on_content_object) {
PendingInterest::on_content_object_callback_ = std::move(on_content_object);
}
const OnInterestTimeoutCallback &getOnTimeoutCallback() const {
return on_interest_timeout_callback_;
}
void setOnTimeoutCallback(OnInterestTimeoutCallback &&on_interest_timeout) {
PendingInterest::on_interest_timeout_callback_ =
std::move(on_interest_timeout);
}
private:
Interest::Ptr interest_;
asio::steady_timer timer_;
OnContentObjectCallback on_content_object_callback_;
OnInterestTimeoutCallback on_interest_timeout_callback_;
};
} // end namespace core
} // end namespace transport
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