VRNetClient::VRNetClient(const std::string &serverIP, const std::string &serverPort)
{
VRLOG_STATUS("VRNetClient connecting...");
#ifdef WIN32 // WinSock implementation
WSADATA wsaData;
SOCKET sockfd = INVALID_SOCKET;
struct addrinfo hints, *servinfo, *p;
int rv;
rv = WSAStartup(MAKEWORD(2,2), &wsaData);
if (rv != 0) {
std::stringstream s;
s << "WSAStartup failed with error: " << rv;
VRERROR(s.str(), "Check for a problem with Windows networking.");
exit(1);
}
ZeroMemory(&hints, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
if ((rv = getaddrinfo(serverIP.c_str(), serverPort.c_str(), &hints, &servinfo)) != 0) {
std::stringstream s;
s << "getaddrinfo() failed with error: " << rv;
VRERROR(s.str(), "Check for a problem with Windows networking.");
WSACleanup();
exit(1);
}
//This is a temporary fix to ensure the client can connect and that the connection is not refused
p = NULL;
while(p == NULL){
// loop through all the results and connect to the first we can
for (p = servinfo; p != NULL; p = p->ai_next) {
if ((sockfd = socket(p->ai_family, p->ai_socktype, p->ai_protocol)) == INVALID_SOCKET) {
std::stringstream s;
s << "socket() failed with error " << WSAGetLastError() << "; will retry.";
VRLOG_STATUS(s.str());
continue;
}
if (connect(sockfd, p->ai_addr, (int)p->ai_addrlen) == SOCKET_ERROR) {
closesocket(sockfd);
sockfd = INVALID_SOCKET;
std::stringstream s;
s << "connect() to server socket failed; will retry.";
VRLOG_STATUS(s.str());
continue;
}
break;
}
}
if (p == NULL) {
VRERROR("VRNetClient failed to connect -- exiting.", "Check for a problem with Windows networking.");
exit(2);
}
//inet_ntop(p->ai_family, get_in_addr2((struct sockaddr *)p->ai_addr), s, sizeof s);
//printf("client: connecting to %s\n", s);
VRLOG_STATUS("VRNetClient connected.");
freeaddrinfo(servinfo); // all done with this structure
// Disable Nagle's algorithm
char value = 1;
setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY, &value, sizeof(value));
_socketFD = sockfd;
#else // BSD sockets implementation
int sockfd;
struct addrinfo hints, *servinfo, *p;
int rv;
char s[INET6_ADDRSTRLEN];
char problemString[50];
memset(&hints, 0, sizeof hints);
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
if ((rv = getaddrinfo(serverIP.c_str(), serverPort.c_str(), &hints, &servinfo)) != 0) {
std::stringstream s;
s << "getaddrinfo() failed with error: " << rv;
VRERROR(s.str(), "Check for a problem with networking.");
exit(1);
}
//This is a temporary fix to ensure the client can connect and that the connection is not refused
p = NULL;
while(p == NULL){
// loop through all the results and connect to the first we can
for (p = servinfo; p != NULL; p = p->ai_next) {
if ((sockfd = socket(p->ai_family, p->ai_socktype, p->ai_protocol)) == -1) {
std::stringstream s;
s << "socket() failed; will retry.";
VRLOG_STATUS(s.str());
continue;
}
if (connect(sockfd, p->ai_addr, p->ai_addrlen) == -1) {
close(sockfd);
std::stringstream s;
s << "client (pid=" << getpid() << "): connect() to server socket failed; will retry.";
VRLOG_STATUS(s.str());
continue;
}
break;
}
}
if (p == NULL) {
VRERROR("VRNetClient failed to connect -- exiting.", "Check for a problem with networking.");
exit(2);
}
inet_ntop(p->ai_family, get_in_addr2((struct sockaddr *)p->ai_addr), s, sizeof(s));
VRLOG_STATUS("VRNetClient connected to " + std::string(s));
freeaddrinfo(servinfo); // all done with this structure
// Disable Nagle's algorithm
char value = 1;
setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY, &value, sizeof(value));
_socketFD = sockfd;
#endif
}
VRNetClient::VRNetClient(const std::string &serverIP, const std::string &serverPort)
{
printf("client: connecting...\n");
#ifdef WIN32 // WinSock implementation
WSADATA wsaData;
SOCKET sockfd = INVALID_SOCKET;
struct addrinfo hints, *servinfo, *p;
int rv;
rv = WSAStartup(MAKEWORD(2,2), &wsaData);
if (rv != 0) {
std::cerr << "WSAStartup failed with error: " << rv << std::endl;
exit(1);
}
ZeroMemory(&hints, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
if ((rv = getaddrinfo(serverIP.c_str(), serverPort.c_str(), &hints, &servinfo)) != 0) {
std::cerr << "getaddrinfo() failed with error: " << rv << std::endl;
WSACleanup();
exit(1);
}
// loop through all the results and connect to the first we can
for (p = servinfo; p != NULL; p = p->ai_next) {
if ((sockfd = socket(p->ai_family, p->ai_socktype, p->ai_protocol)) == INVALID_SOCKET) {
std::cerr << "socket() failed with error: " << WSAGetLastError() << std::endl;
continue;
}
if (connect(sockfd, p->ai_addr, (int)p->ai_addrlen) == SOCKET_ERROR) {
closesocket(sockfd);
sockfd = INVALID_SOCKET;
std::cerr << "connect() to server socket failed" << std::endl;
continue;
}
break;
}
if (p == NULL) {
fprintf(stderr, "client: failed to connect\n");
//return 2;
exit(2);
}
//inet_ntop(p->ai_family, get_in_addr2((struct sockaddr *)p->ai_addr), s, sizeof s);
//printf("client: connecting to %s\n", s);
printf("client: connected\n");
freeaddrinfo(servinfo); // all done with this structure
// Disable Nagle's algorithm
char value = 1;
setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY, &value, sizeof(value));
_socketFD = sockfd;
#else // BSD sockets implementation
int sockfd;
struct addrinfo hints, *servinfo, *p;
int rv;
char s[INET6_ADDRSTRLEN];
memset(&hints, 0, sizeof hints);
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
if ((rv = getaddrinfo(serverIP.c_str(), serverPort.c_str(), &hints, &servinfo)) != 0) {
fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(rv));
//return 1;
exit(1);
}
// loop through all the results and connect to the first we can
for (p = servinfo; p != NULL; p = p->ai_next) {
if ((sockfd = socket(p->ai_family, p->ai_socktype, p->ai_protocol)) == -1) {
perror("client: socket");
continue;
}
if (connect(sockfd, p->ai_addr, p->ai_addrlen) == -1) {
close(sockfd);
perror("client: connect");
continue;
}
break;
}
if (p == NULL) {
fprintf(stderr, "client: failed to connect\n");
//return 2;
exit(2);
}
inet_ntop(p->ai_family, get_in_addr2((struct sockaddr *)p->ai_addr), s, sizeof s);
printf("client: connected to %s\n", s);
freeaddrinfo(servinfo); // all done with this structure
// Disable Nagle's algorithm
char value = 1;
setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY, &value, sizeof(value));
_socketFD = sockfd;
#endif
}
