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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.
*/
#include <hicn/transport/interfaces/socket_consumer.h>
#include <implementation/socket_consumer.h>
#include <protocols/protocol.h>
namespace transport {
namespace protocol {
using namespace interface;
TransportProtocol::TransportProtocol(implementation::ConsumerSocket *icn_socket,
Reassembly *reassembly_protocol)
: socket_(icn_socket),
reassembly_protocol_(reassembly_protocol),
index_manager_(
std::make_unique<IndexManager>(socket_, this, reassembly_protocol)),
is_running_(false),
is_first_(false),
on_interest_retransmission_(VOID_HANDLER),
on_interest_output_(VOID_HANDLER),
on_interest_timeout_(VOID_HANDLER),
on_interest_satisfied_(VOID_HANDLER),
on_content_object_input_(VOID_HANDLER),
on_content_object_verification_(VOID_HANDLER),
stats_summary_(VOID_HANDLER),
verification_failed_callback_(VOID_HANDLER),
on_payload_(VOID_HANDLER) {
socket_->getSocketOption(GeneralTransportOptions::PORTAL, portal_);
socket_->getSocketOption(OtherOptions::STATISTICS, &stats_);
}
int TransportProtocol::start() {
// If the protocol is already running, return otherwise set as running
if (is_running_) return -1;
// Reset the protocol state machine
reset();
// Set it is the first time we schedule an interest
is_first_ = true;
// Get all callbacks references before starting
socket_->getSocketOption(ConsumerCallbacksOptions::INTEREST_RETRANSMISSION,
&on_interest_retransmission_);
socket_->getSocketOption(ConsumerCallbacksOptions::INTEREST_OUTPUT,
&on_interest_output_);
socket_->getSocketOption(ConsumerCallbacksOptions::INTEREST_EXPIRED,
&on_interest_timeout_);
socket_->getSocketOption(ConsumerCallbacksOptions::INTEREST_SATISFIED,
&on_interest_satisfied_);
socket_->getSocketOption(ConsumerCallbacksOptions::CONTENT_OBJECT_INPUT,
&on_content_object_input_);
socket_->getSocketOption(ConsumerCallbacksOptions::CONTENT_OBJECT_TO_VERIFY,
&on_content_object_verification_);
socket_->getSocketOption(ConsumerCallbacksOptions::STATS_SUMMARY,
&stats_summary_);
socket_->getSocketOption(ConsumerCallbacksOptions::VERIFICATION_FAILED,
&verification_failed_callback_);
socket_->getSocketOption(ConsumerCallbacksOptions::READ_CALLBACK,
&on_payload_);
// Schedule next interests
scheduleNextInterests();
is_first_ = false;
// Set the protocol as running
is_running_ = true;
// Start Event loop
portal_->runEventsLoop();
// Not running anymore
is_running_ = false;
return 0;
}
void TransportProtocol::stop() {
is_running_ = false;
portal_->stopEventsLoop();
}
void TransportProtocol::resume() {
if (is_running_) return;
is_running_ = true;
scheduleNextInterests();
portal_->runEventsLoop();
is_running_ = false;
}
void TransportProtocol::onContentReassembled(std::error_code ec) {
if (!on_payload_) {
throw errors::RuntimeException(
"The read callback must be installed in the transport before "
"starting "
"the content retrieval.");
}
if (!ec) {
on_payload_->readSuccess(stats_->getBytesRecv());
} else {
on_payload_->readError(ec);
}
stop();
}
} // end namespace protocol
} // end namespace transport
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