{ NULL, 0, NULL, 0 }
};
+// generates from [0,1>
+double gen_uniform_random()
+{
+ return rand() / (RAND_MAX+1.0);
+}
+
double gen_pareto_random(double min, double k)
{
- double u = rand() / (RAND_MAX+1.0);
+ double u = gen_uniform_random();
return min * pow(u, -1.0 / k);
}
void *sender_worker(void *arg)
{
unsigned i;
-
- printf("Dummy sender worker\n");
+ int sock;
for (i = 0; i < 1000; ++i) {
- unsigned bytes = (unsigned)gen_pareto_random(1048576.0, 1.0);
- printf("Sending %u bytes\n", bytes);
+ unsigned src_num = (unsigned)(num_sources * gen_uniform_random());
+ unsigned dst_num = (unsigned)(num_destinations * gen_uniform_random());
+ unsigned num_bytes = (unsigned)gen_pareto_random(1048576.0, 1.0);
+ struct sockaddr_in sin;
+
+ sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
+ if (sock == -1) {
+ perror("socket()");
+ exit(1);
+ }
+
+ // FIXME: bind to the right source
+
+ sin.sin_family = AF_INET;
+ sin.sin_port = htons(port);
+ sin.sin_addr = destinations[dst_num];
+
+ if (connect(sock, (struct sockaddr *)&sin, sizeof(sin)) == -1) {
+ perror("connect()");
+ exit(1);
+ }
+
+ // FIXME: send data here
+
+ close(sock);
}
pthread_exit(0);