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/*
Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Her Majesty the Queen in Right of Canada (Communications Research
Center Canada)
Copyright (C) 2016
Matthias P. Braendli, matthias.braendli@mpb.li
http://www.opendigitalradio.org
*/
/*
This file is part of ODR-DabMod.
ODR-DabMod is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
ODR-DabMod is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ODR-DabMod. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "InputReader.h"
#include "PcDebug.h"
#include "Utils.h"
#include <unistd.h>
#include <errno.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <arpa/inet.h>
InputTcpReader::InputTcpReader()
{
if ((m_sock = socket(PF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) {
throw std::runtime_error("Can't create TCP socket");
}
}
InputTcpReader::~InputTcpReader()
{
if (m_sock != INVALID_SOCKET) {
close(m_sock);
}
}
void InputTcpReader::Open(const std::string& endpoint)
{
std::string hostname;
if (endpoint.compare(0, 6, "tcp://") == 0) {
hostname = endpoint.substr(6, std::string::npos);
}
else {
hostname = endpoint;
}
size_t colon_pos = hostname.find(":");
if (colon_pos == std::string::npos) {
std::stringstream ss;
ss << "Could not parse TCP endpoint " << endpoint;
throw std::runtime_error(ss.str());
}
long port = strtol(hostname.c_str() + colon_pos + 1, NULL, 10);
if (errno == ERANGE) {
std::stringstream ss;
ss << "Could not parse port in TCP endpoint " << endpoint;
throw std::runtime_error(ss.str());
}
hostname = hostname.substr(0, colon_pos);
struct sockaddr_in addr;
addr.sin_family = PF_INET;
addr.sin_addr.s_addr = htons(INADDR_ANY);
addr.sin_port = htons(port);
hostent *host = gethostbyname(hostname.c_str());
if (host) {
addr.sin_addr = *(in_addr *)(host->h_addr);
}
else {
std::stringstream ss;
ss << "Could not resolve hostname " << hostname << ": " << strerror(errno);
throw std::runtime_error(ss.str());
}
/* Set recv timeout of 30s, see socket(7) for details */
struct timeval tv = {0};
tv.tv_sec = 30;
if (setsockopt(m_sock, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(struct timeval)) == -1) {
std::stringstream ss;
ss << "Could not set socket recv timeout: " << strerror(errno);
throw std::runtime_error(ss.str());
}
if (connect(m_sock, (struct sockaddr*)&addr, sizeof(addr)) == -1) {
std::stringstream ss;
ss << "Could not connect to " << hostname << ":" << port << " :" << strerror(errno);
throw std::runtime_error(ss.str());
}
m_uri = endpoint;
}
int InputTcpReader::GetNextFrame(void* buffer)
{
uint8_t* buf = (uint8_t*)buffer;
const size_t framesize = 6144;
ssize_t r = recv(m_sock, buf, framesize, MSG_WAITALL);
if (r == -1) {
std::stringstream ss;
ss << "Could not receive from socket :" << strerror(errno);
throw std::runtime_error(ss.str());
}
return r;
}
void InputTcpReader::PrintInfo() const
{
fprintf(stderr, "Input TCP:\n");
fprintf(stderr, " Receiving from %s\n\n", m_uri.c_str());
}
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