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/*
* Copyright (C) 2018, 2019 "IoT.bzh"
* Author "Arthur Guyader" <arthur.guyader@iot.bzh>
*
* 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 "socketcan-j1939-data.hpp"
#include "socketcan-j1939-addressclaiming.hpp"
#include "../../binding/application.hpp"
namespace utils
{
/**
* @brief Open a socket for receive or send data
*
* @param device_name The device name to open the socket
* @param pgn The pgn to receive only him
* @return int Return the number of the socket
*/
int socketcan_j1939_data_t::open(std::string device_name, pgn_t pgn)
{
int ret = socketcan_j1939_t::open(device_name,htole64(J1939_NAME_ECU),pgn,J1939_NO_ADDR);
if(ret >= 0)
{
if(tx_address_.can_addr.j1939.pgn != J1939_NO_PGN)
{
add_filter(J1939_NO_NAME,tx_address_.can_addr.j1939.pgn,J1939_NO_ADDR,J1939_NO_NAME,J1939_NO_PGN,J1939_NO_ADDR);
}
define_opt();
}
return ret;
}
/**
* @brief Write a message but check if the address claiming is operation before
*
* @param obj A j1939 message
* @return int 0 if the write is ok
*/
int socketcan_j1939_data_t::write_message(message_t& obj)
{
std::unique_lock<std::mutex> lock(mutex_claiming_);
application_t &application = application_t::instance();
socketcan_j1939_addressclaiming_t *socket_addr_claimed = static_cast<socketcan_j1939_addressclaiming_t*>(application.get_socket_address_claiming().get());
while(socket_addr_claimed->get_state() != claiming_state::OPERATIONAL)
{
socketcan_j1939_t::signal_address_claiming_.wait(lock);
if(socket_addr_claimed->get_state() == claiming_state::INVALID)
{
AFB_ERROR("Invalid state");
return -1;
}
}
return socketcan_j1939_t::write_message(obj);
}
}
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