void Client::connectionPhase()
{
packet.clear();
packetID = EMPTY;
TCPsocket.receive(packet);
packet>>packetID;
switch(packetID)
{
case EMPTY:
break;
case CONTINUE:
currentPhase = DOWNLOADS;
std::cout<<"Client going to downloadsPhase"<<std::endl;
break;
case START:
handleStartPacket();
break;
}
}
int main(int argc, char **argv) {
host_t ftHost, rdaHost;
int rdaSocket;
ft_buffer_server_t *S;
if (sizeof(rda_msg_hdr_t)!=24) {
fprintf(stderr, "Compiled-in datatypes do not match RDA protocol\n");
exit(1);
}
if (argc!=5 && argc!=3) {
fputs(usage, stderr);
exit(1);
}
strncpy(rdaHost.name, argv[1], sizeof(rdaHost.name));
rdaHost.name[sizeof(rdaHost.name)-1]=0;
rdaHost.port = atoi(argv[2]);
if (argc==5) {
strncpy(ftHost.name, argv[3], sizeof(ftHost.name));
ftHost.name[sizeof(ftHost.name)-1]=0;
ftHost.port = atoi(argv[4]);
} else {
strcpy(ftHost.name, "-");
ftHost.port = 1972;
}
/* this isn't a FieldTrip connection, but we can use the same function */
rdaSocket = open_connection(rdaHost.name, rdaHost.port);
if (rdaSocket < 0) {
fprintf(stderr, "Could not connect to RDA server at %s:%i\n", rdaHost.name, rdaHost.port);
return 1;
}
/* Spawn tcpserver or connect to remote buffer */
if (strcmp(ftHost.name, "-") == 0) {
S = ft_start_buffer_server(ftHost.port, NULL, NULL, NULL);
if (S==NULL) {
fprintf(stderr, "Could not start up a FieldTrip buffer serving at port %i\n", ftHost.port);
return 1;
}
ftSocket = 0;
printf("Streaming from %s:%i to local buffer on port %i\n", rdaHost.name, rdaHost.port, ftHost.port);
} else {
ftSocket = open_connection(ftHost.name, ftHost.port);
if (ftSocket < 0) {
fprintf(stderr, "Could not connect to FieldTrip buffer at %s:%i\n", ftHost.name, ftHost.port);
return 1;
}
printf("Streaming from %s:%i to remote buffer at %s:%i\n", rdaHost.name, rdaHost.port, ftHost.name, ftHost.port);
}
/* register CTRL-C handler */
signal(SIGINT, abortHandler);
printf("Starting to listen - press CTRL-C to quit\n");
while (keepRunning) {
rda_msg_hdr_t header;
char *buf;
int n,s;
n = bufread(rdaSocket, &header, sizeof(header));
if (n!=sizeof(header)) {
fprintf(stderr, "Error while reading packet header from the RDA server\n");
break;
}
if (memcmp(_rda_guid, header.guid, 16)!=0) {
int i;
fprintf(stderr, "Incorrect GUID in received packet:\n");
for (i=0;i<16;i++) {
fprintf(stderr, "0x%02x should be 0x%02x\n", header.guid[i], _rda_guid[i]);
}
break;
}
buf = (char *) malloc(header.nSize);
if (buf == NULL) {
fprintf(stderr, "Out of memory\n");
break;
}
memcpy(buf, &header, sizeof(header));
s = header.nSize - sizeof(header);
n = bufread(rdaSocket, buf + sizeof(header), s);
if (s!=n) {
fprintf(stderr, "Error while reading packet remainder from the RDA server\n");
free(buf);
break;
}
switch(header.nType) {
case RDA_START_MSG:
handleStartPacket(ftSocket, header.nSize, buf);
break;
case RDA_INT_MSG:
case RDA_FLOAT_MSG:
handleDataPacket(ftSocket, header.nSize, buf);
break;
case RDA_STOP_MSG:
printf("\nRemote Data Acquisition stopped\n\n");
break;
default:
fprintf(stderr, "Unrecognized packet type (%i), has size %i - exiting\n", header.nType, header.nSize);
keepRunning = 0;
break;
}
free(buf);
}
close_connection(rdaSocket);
if (ftSocket > 0) {
close_connection(ftSocket);
} else {
ft_stop_buffer_server(S);
}
return 0;
}
