inline
sockaddr_storage get_sockaddr_from(const std::string& ip, const std::string& port)
{
int portid = atoi(port.c_str());
unsigned long addr = inet_addr(ip.c_str());
struct addrinfo hints, *servinfo;
int rv;
memset(&hints, 0, sizeof hints);
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_DGRAM;
sockaddr_storage ret;
memset(&ret, 0, sizeof(sockaddr_storage));
if ((rv = getaddrinfo(ip.c_str(), port.c_str(), &hints, &servinfo)) != 0) {
fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(rv));
return sockaddr_storage();
}
/*for(addrinfo* p = servinfo; p != nullptr; p = p->ai_next) {
sockaddr_in* ipv4 = (sockaddr_in*)p->ai_addr;
memcpy(&ret, ipv4, sizeof(sockaddr_in));
}*/
memcpy(&ret, servinfo->ai_addr, servinfo->ai_addrlen);
freeaddrinfo(servinfo);
return ret;
}
void Socket::sendAndReceive (const std::string& destination_address, void* data, size_t size, std::function<int(void*)> callback, const bool broadcast)
{
sockaddr_in destAddr = fillAddr(destination_address, STANDARD_GVCP_PORT);
setBroadcast(broadcast);
ssize_t send = sendto(fd, (uint8_t*)data, size, 0, (struct sockaddr*)&destAddr, sizeof(destAddr));
if (send <= 0)
{
throw SocketSendToException();
}
else
{
// we have nothing to wait for end just end here
if (callback == NULL)
{
return;
}
timeval timeout;
timeout.tv_sec = timeout_ms / 1000;
timeout.tv_usec = (timeout_ms % 1000) * 1000;
fd_set fds;
FD_ZERO(&fds);
FD_SET(fd, &fds);
while (select(fd+1, &fds, NULL, NULL, &timeout) > 0)
{
char msg[1024];
struct sockaddr_storage sender = sockaddr_storage();
socklen_t sendsize = 0;
if (recvfrom(fd, msg, sizeof(msg), 0, (sockaddr*)&sender, &sendsize) >= 0)
{
if (callback(msg) == SendAndReceiveSignals::END)
{
return;
}
// not working due to gcc bug
//auto cam = std::make_shared<Camera>(ack, interfaces.at(i).socket, interfaces.at(i).name);
}
}
}
}