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// Copyright (C) 2014-2017 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <iomanip>
#include <sstream>
#include <limits>
#include <boost/asio/buffer.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <boost/asio/ip/udp_ext.hpp>
#include <boost/asio/local/stream_protocol.hpp>
#include <vsomeip/defines.hpp>
#include "../include/server_endpoint_impl.hpp"
#include "../../configuration/include/internal.hpp"
#include "../../logging/include/logger.hpp"
#include "../../utility/include/byteorder.hpp"
#include "../../utility/include/utility.hpp"
namespace vsomeip {
template<typename Protocol>
server_endpoint_impl<Protocol>::server_endpoint_impl(
std::shared_ptr<endpoint_host> _host, endpoint_type _local,
boost::asio::io_service &_io, std::uint32_t _max_message_size)
: endpoint_impl<Protocol>(_host, _local, _io, _max_message_size),
flush_timer_(_io) {
}
template<typename Protocol>
server_endpoint_impl<Protocol>::~server_endpoint_impl() {
}
template<typename Protocol>
void server_endpoint_impl<Protocol>::stop() {
std::lock_guard<std::mutex> its_lock(mutex_);
endpoint_impl<Protocol>::sending_blocked_ = true;
}
template<typename Protocol>
bool server_endpoint_impl<Protocol>::is_client() const {
return false;
}
template<typename Protocol>
bool server_endpoint_impl<Protocol>::is_connected() const {
return true;
}
template<typename Protocol>
bool server_endpoint_impl<Protocol>::send(const uint8_t *_data,
uint32_t _size, bool _flush) {
#if 0
std::stringstream msg;
msg << "sei::send ";
for (uint32_t i = 0; i < _size; i++)
msg << std::setw(2) << std::setfill('0') << (int)_data[i] << " ";
VSOMEIP_INFO << msg.str();
#endif
endpoint_type its_target;
bool is_valid_target(false);
if (VSOMEIP_SESSION_POS_MAX < _size) {
std::lock_guard<std::mutex> its_lock(mutex_);
if(endpoint_impl<Protocol>::sending_blocked_) {
return false;
}
service_t its_service;
std::memcpy(&its_service, &_data[VSOMEIP_SERVICE_POS_MIN],
sizeof(service_t));
client_t its_client;
std::memcpy(&its_client, &_data[VSOMEIP_CLIENT_POS_MIN],
sizeof(client_t));
session_t its_session;
std::memcpy(&its_session, &_data[VSOMEIP_SESSION_POS_MIN],
sizeof(session_t));
clients_mutex_.lock();
auto found_client = clients_.find(its_client);
if (found_client != clients_.end()) {
auto found_session = found_client->second.find(its_session);
if (found_session != found_client->second.end()) {
its_target = found_session->second;
is_valid_target = true;
}
} else {
is_valid_target = get_default_target(its_service, its_target);
}
clients_mutex_.unlock();
if (is_valid_target) {
is_valid_target = send_intern(its_target, _data, _size, _flush);
}
}
return is_valid_target;
}
template<typename Protocol>
bool server_endpoint_impl<Protocol>::send_intern(
endpoint_type _target, const byte_t *_data, uint32_t _size,
bool _flush) {
message_buffer_ptr_t target_packetizer;
queue_iterator_type target_queue_iterator;
if (endpoint_impl<Protocol>::max_message_size_ != MESSAGE_SIZE_UNLIMITED
&& _size > endpoint_impl<Protocol>::max_message_size_) {
VSOMEIP_ERROR << "sei::send_intern: Dropping to big message (" << _size
<< " Bytes). Maximum allowed message size is: "
<< endpoint_impl<Protocol>::max_message_size_ << " Bytes.";
return false;
}
auto found_packetizer = packetizer_.find(_target);
if (found_packetizer != packetizer_.end()) {
target_packetizer = found_packetizer->second;
} else {
target_packetizer = std::make_shared<message_buffer_t>();
packetizer_.insert(std::make_pair(_target, target_packetizer));
}
target_queue_iterator = queues_.find(_target);
if (target_queue_iterator == queues_.end()) {
target_queue_iterator = queues_.insert(queues_.begin(),
std::make_pair(
_target,
std::deque<message_buffer_ptr_t>()
));
}
// TODO compare against value from configuration here
const bool queue_size_zero_on_entry(target_queue_iterator->second.empty());
if (target_packetizer->size() + _size
> endpoint_impl<Protocol>::max_message_size_
&& !target_packetizer->empty()) {
target_queue_iterator->second.push_back(target_packetizer);
target_packetizer = std::make_shared<message_buffer_t>();
packetizer_[_target] = target_packetizer;
}
target_packetizer->insert(target_packetizer->end(), _data, _data + _size);
if (_flush) {
flush_timer_.cancel();
target_queue_iterator->second.push_back(target_packetizer);
packetizer_[_target] = std::make_shared<message_buffer_t>();
} else {
std::chrono::milliseconds flush_timeout(VSOMEIP_DEFAULT_FLUSH_TIMEOUT);
flush_timer_.expires_from_now(flush_timeout); // TODO: use configured value
flush_timer_.async_wait(
std::bind(&server_endpoint_impl<Protocol>::flush_cbk,
this->shared_from_this(),
_target,
std::placeholders::_1));
}
if (queue_size_zero_on_entry && !target_queue_iterator->second.empty()) { // no writing in progress
send_queued(target_queue_iterator);
}
return true;
}
template<typename Protocol>
bool server_endpoint_impl<Protocol>::flush(
endpoint_type _target) {
bool is_flushed = false;
std::lock_guard<std::mutex> its_lock(mutex_);
auto queue_iterator = queues_.find(_target);
if (queue_iterator != queues_.end() && !queue_iterator->second.empty()) {
send_queued(queue_iterator);
is_flushed = true;
}
return is_flushed;
}
template<typename Protocol>
void server_endpoint_impl<Protocol>::connect_cbk(
boost::system::error_code const &_error) {
(void)_error;
}
template<typename Protocol>
void server_endpoint_impl<Protocol>::send_cbk(
queue_iterator_type _queue_iterator, boost::system::error_code const &_error,
std::size_t _bytes) {
(void)_bytes;
if (!_error) {
std::lock_guard<std::mutex> its_lock(mutex_);
_queue_iterator->second.pop_front();
if (_queue_iterator->second.size() > 0) {
send_queued(_queue_iterator);
}
}
}
template<typename Protocol>
void server_endpoint_impl<Protocol>::flush_cbk(
endpoint_type _target, const boost::system::error_code &_error_code) {
if (!_error_code) {
(void) flush(_target);
}
}
// Instantiate template
#ifndef _WIN32
template class server_endpoint_impl<boost::asio::local::stream_protocol>;
#endif
template class server_endpoint_impl<boost::asio::ip::tcp>;
template class server_endpoint_impl<boost::asio::ip::udp_ext>;
} // namespace vsomeip
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