inline void wd11c00_17_device::write_data(uint8_t data)
{
if (m_status & STATUS_BUSY)
{
m_out_ramwr_cb(m_ra & 0x7ff, data);
increment_address();
}
}
int sender(int nAddr, int nStream, float bandwidth, int packet_size, int test_time, int test_inc, char *addr, int start_port, int verbose){
int i, j, pid, k;
char bw[20];
sprintf(bw, "%fm",bandwidth);
char ttime[8];
m_itoa(test_time, ttime);
char pktsize[8];
m_itoa(packet_size, pktsize);
for (k = 0; k < 8; k++){
if (pktsize[k] == '\0'){
pktsize[k] = 'B';
pktsize[k + 1] = '\0';
break;
}
}
k = 1;
if (test_inc == 0) k = nAddr;
int n = 1;
signal(SIGCHLD, SIG_IGN);
while(k <= nAddr ){
char *plural_s = "";
if (nStream > 1) plural_s = "s";
char *plural_a = "";
if (nAddr > 1) plural_a = "es";
if (verbose == 1) printf("Test %d: Sending to %d/%d Address%s (starting at %s:%d) over %d stream%s, at %.2f mbps for %d seconds.\n", n, k, nAddr, plural_a, addr, start_port,nStream,plural_s, bandwidth, test_time);
for(i = 0; i < k; i++) {
for (j = 0; j < nStream; j++){
pid = fork();
if(pid < 0) {
printf("Error");
return 0;
} else if (pid == 0) {
int port = start_port + i *nStream + j;
char p[6];
m_itoa(port, p);
char fn[20];
sprintf(fn, "%d.%d.%d.txt",i,j,k);
execl("/usr/bin/iperf", "/usr/bin/iperf", "-c", increment_address(addr, i), "-u", "-T", "32", "-l", pktsize, "-p", p, "-x", "CDMSV", "-t", ttime, "-b", bw,"-o",fn, NULL);
exit(0);
} else {
continue;
}
}
}
n++;
sleep(test_time + 4);
if (k == nAddr) break;
if (k == 1 && test_inc != 1) k = 0;
k += test_inc;
if (k > nAddr) k = nAddr;
}
return 0;
}
inline uint8_t wd11c00_17_device::read_data()
{
uint8_t data = 0;
if (m_status & STATUS_BUSY)
{
data = m_in_ramcs_cb(m_ra & 0x7ff);
increment_address();
}
return data;
}
inline UINT8 wd11c00_17_device::read_data()
{
UINT8 data = 0;
if (m_status & STATUS_BUSY)
{
data = m_in_ramcs_func(m_ra & 0x7ff);
increment_address();
}
return data;
}
int open_sockets(int n_addr, int n_stream, int start_port, char *start_addr){
int i,k;
for (i = 0; i < n_addr; i++){
char addr[25];
for (k = 0; k < n_stream; k++){
int ind = i * n_stream + k;
char port[8];
sprintf(port, "%d", start_port + ind);
sprintf(addr, "%s", increment_address(start_addr, i));
sockets[ind] = mcast_recv_socket(addr, port, MULTICAST_SO_RCVBUF);
if (sockets[ind] < 0) {
return -1;
}
}
}
return 0;
}
McastResult* run_tests(int n_addr, int n_stream, char *start_addr, int startPort, int bufLen, int *jitterSize, int timeout, int verbose){
int i,j,rc;
int n_thread = n_addr * n_stream;
pthread_t thr[n_thread];
mthread_data_t thr_data[n_thread];
pthread_attr_t thread_attr;
pthread_attr_init(&thread_attr);
pthread_attr_setstacksize(&thread_attr , PTHREAD_STACK_MIN );
char *plural_s = "";
if (n_stream > 1) plural_s = "s";
char *plural_a = "";
if (n_addr > 1) plural_a = "es";
if (verbose == 1){
printf("Receiving from %d Multicast Address%s (starting at %s:%d) over %d stream%s.\n", n_addr, plural_a, start_addr, startPort, n_stream, plural_s);
}
for (i = 0; i < n_addr; i++){
for (j = 0; j < n_stream; j++){
int ind = i * n_stream + j;
sprintf(thr_data[ind].port, "%d", startPort + ind);
sprintf(thr_data[ind].addr, "%s", increment_address(start_addr, i));
thr_data[ind].bufLen = bufLen;
thr_data[ind].sock = sockets[ind];
thr_data[ind].jitterSize = *jitterSize;
thr_data[ind].timeout = timeout;
thr_data[ind].stat = createMcastStat(*jitterSize);
}
}
// loop again to ensure things start at same time.
for (i = 0; i < n_thread; i++){
if ((rc = pthread_create(&thr[i], &thread_attr, run_subtest, &thr_data[i])) < 0) {
printf("pthread_create rc: %d\n", rc);
fprintf(stderr, "error: pthread_create, rc: %d\n", rc);
return NULL;
}
}
int ntime = 0;
for (i = 0; i < n_thread; i++){
pthread_join(thr[i], NULL);
}
int nerr = 0;
McastStat *res = createMcastStat(*jitterSize);
for (i = 0; i < n_thread; i++){
McastStat *stat = thr_data[i].stat;
if (thr_data[i].timeout == -1){
nerr++;
}
else {
ntime = stat->ttime;
res->lost += stat->lost;
res->rcvd += stat->rcvd;
res->ttime += stat->ttime;
res->bytes += stat->bytes;
float rj = res->rollingJitter;
for (j = 0; j < stat->used; j++){
insertJitter(res, stat->jitters[j]);
}
res->rollingJitter = rj + stat->rollingJitter;
if (stat->used > *jitterSize){
*jitterSize = stat->used;
}
}
freeMcastStat(stat);
}
res->ttime += ntime * nerr;
if (nerr >= (n_thread + 1) / 2 || computeBitrate(res) < 0.01){
return (McastResult *)NULL;
}
res->rollingJitter /= (n_thread - nerr);
McastResult* r = computeMcastResult(res, n_addr, n_stream);
freeMcastStat(res);
return r;
}