ByteQueue UDPSocket::recv(Address& address) {
ByteQueue data;
#ifdef _WIN32
fd_set fds;
timeval timeout;
FD_ZERO(&fds);
FD_SET(sd, &fds);
timeout.tv_sec = 0;
timeout.tv_usec = 0;
if (select(0, &fds, nullptr, nullptr, &timeout) > 0) {
SOCKADDR_IN addr;
int addrsize = sizeof(SOCKADDR_IN);
data.resize(maxlen);
data.resize(uint32_t(recvfrom(SOCKET(sd), (char*)data.ptr(), maxlen, 0, (SOCKADDR*)&addr, &addrsize)));
address = Address(addr.sin_addr.S_un.S_addr, addr.sin_port);
}
#else
fd_set fds;
timeval timeout;
FD_ZERO(&fds);
FD_SET(sd, &fds);
timeout.tv_sec = 0;
timeout.tv_usec = 0;
if (select(sd + 1, &fds, nullptr, nullptr, &timeout) > 0) {
sockaddr_in addr;
socklen_t addrsize = sizeof(sockaddr_in);
data.resize(maxlen);
data.resize(uint32_t(recvfrom(sd, data.ptr(), maxlen, 0, (sockaddr*)&addr, &addrsize)));
address = Address(addr.sin_addr.s_addr, addr.sin_port);
}
#endif
return data;
}
void ByteQueue::pop(ByteQueue& data) {
uint32_t total = data.size() <= buf.size() ? data.size() : buf.size();
if (!total)
return;
memcpy(data.ptr(), (const void*)&buf[0], total);
buf.erase(buf.begin(), buf.begin() + total);
data.resize(total);
}
void UDPSocket::send(const Address& address, const ByteQueue& data) {
#ifdef _WIN32
SOCKADDR_IN servaddr;
memset((void*)&servaddr, 0, sizeof(SOCKADDR_IN));
servaddr.sin_family = AF_INET;
servaddr.sin_addr.s_addr = address.ip;
servaddr.sin_port = address.port;
sendto(sd, (const char*)data.ptr(), data.size(), 0, (SOCKADDR*)&servaddr, sizeof(SOCKADDR_IN));
#else
sockaddr_in servaddr;
memset(&servaddr, 0, sizeof(sockaddr_in));
servaddr.sin_family = AF_INET;
servaddr.sin_addr.s_addr = address.ip;
servaddr.sin_port = address.port;
sendto(sd, data.ptr(), data.size(), 0, (const sockaddr*)&servaddr, sizeof(sockaddr_in));
#endif
}