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/*
* Copyright (c) 2017-2019 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/interfaces/callbacks.h>
#include <hicn/transport/interfaces/socket_producer.h>
#include <hicn/transport/interfaces/statistics.h>
#include <hicn/transport/utils/object_pool.h>
#include <implementation/socket.h>
#include <protocols/fec_base.h>
#include <protocols/fec_utils.h>
#include <utils/content_store.h>
#include <atomic>
#include <thread>
namespace transport {
namespace protocol {
using namespace core;
class ProductionProtocol : public Portal::ProducerCallback {
public:
ProductionProtocol(implementation::ProducerSocket *icn_socket);
virtual ~ProductionProtocol();
bool isRunning() { return is_running_; }
virtual int start();
virtual void stop();
virtual void produce(ContentObject &content_object);
virtual uint32_t produceStream(const Name &content_name,
std::unique_ptr<utils::MemBuf> &&buffer,
bool is_last = true,
uint32_t start_offset = 0) = 0;
virtual uint32_t produceStream(const Name &content_name,
const uint8_t *buffer, size_t buffer_size,
bool is_last = true,
uint32_t start_offset = 0) = 0;
virtual uint32_t produceDatagram(const Name &content_name,
std::unique_ptr<utils::MemBuf> &&buffer) = 0;
virtual uint32_t produceDatagram(const Name &content_name,
const uint8_t *buffer,
size_t buffer_size) = 0;
void setOutputBufferSize(std::size_t size) { output_buffer_.setLimit(size); }
std::size_t getOutputBufferSize() { return output_buffer_.getLimit(); }
virtual void registerNamespaceWithNetwork(const Prefix &producer_namespace);
const std::list<Prefix> &getNamespaces() const { return served_namespaces_; }
protected:
// Producer callback
virtual void onInterest(core::Interest &i) override = 0;
virtual void onError(std::error_code ec) override{};
template <typename FECHandler, typename AllocatorHandler>
void enableFEC(FECHandler &&fec_handler,
AllocatorHandler &&allocator_handler) {
if (!fec_encoder_) {
// Try to get FEC from environment
if (const char *fec_str = std::getenv("TRANSPORT_FEC_TYPE")) {
LOG(INFO) << "Using FEC " << fec_str;
fec_type_ = fec::FECUtils::fecTypeFromString(fec_str);
}
if (fec_type_ == fec::FECType::UNKNOWN) {
return;
}
fec_encoder_ = fec::FECUtils::getEncoder(fec_type_, 1);
fec_encoder_->setFECCallback(std::forward<FECHandler>(fec_handler));
fec_encoder_->setBufferCallback(
std::forward<AllocatorHandler>(allocator_handler));
}
}
protected:
implementation::ProducerSocket *socket_;
// Thread pool responsible for IO operations (send data / receive interests)
std::vector<utils::EventThread> io_threads_;
// TODO remove this thread
std::thread listening_thread_;
std::shared_ptr<Portal> portal_;
std::atomic<bool> is_running_;
interface::ProductionStatistics *stats_;
std::unique_ptr<fec::ProducerFEC> fec_encoder_;
// Callbacks
interface::ProducerInterestCallback *on_interest_input_;
interface::ProducerInterestCallback *on_interest_dropped_input_buffer_;
interface::ProducerInterestCallback *on_interest_inserted_input_buffer_;
interface::ProducerInterestCallback *on_interest_satisfied_output_buffer_;
interface::ProducerInterestCallback *on_interest_process_;
interface::ProducerContentObjectCallback *on_new_segment_;
interface::ProducerContentObjectCallback *on_content_object_to_sign_;
interface::ProducerContentObjectCallback *on_content_object_in_output_buffer_;
interface::ProducerContentObjectCallback *on_content_object_output_;
interface::ProducerContentObjectCallback
*on_content_object_evicted_from_output_buffer_;
interface::ProducerContentCallback *on_content_produced_;
// Output buffer
utils::ContentStore output_buffer_;
// List ot routes served by current producer protocol
std::list<Prefix> served_namespaces_;
// Signature and manifest
std::shared_ptr<auth::Signer> signer_;
bool making_manifest_;
bool is_async_;
fec::FECType fec_type_;
};
} // end namespace protocol
} // end namespace transport
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