add new_stream and accept callbacks to iperf_test

remove init callback from iperf_stream
rework client initialization to take advantage of new_stream callback

src/iperf_api.c

@@ -312,7 +312,6 @@ struct iperf_stream *iperf_new_tcp_stream(struct iperf_test *testp)
         return(NULL);
     }
 
-    sp->accept = iperf_tcp_accept;
     sp->recv = iperf_tcp_recv;
     sp->send = iperf_tcp_send;
     sp->update_stats = iperf_tcp_update_stats;
@@ -687,26 +686,24 @@ main(int argc, char **argv)
 	test->local_addr = (struct sockaddr_storage *) addr_local;	
 	test->remote_addr = (struct sockaddr_storage *) addr_remote;	
 
+    switch(test->proto)
+    {
+        case Ptcp:
+            test->accept = iperf_tcp_accept;
+            test->new_stream = iperf_new_tcp_stream;
+            break;
+        case Pudp:
+            test->accept = iperf_udp_accept;
+            test->new_stream = ipref_new_udp_stream;
+            break;
+    }
 
 	if(test->role == 'c')
 	{
         for(i=0;i<test->num_streams;i++)
         {
+            sp = test->new_stream(test);
             sp->remote_port = temp.remote_port;
-            switch(test->proto)	{				
-                case Ptcp:
-                    sp = iperf_new_tcp_stream(test);
-                    break;
-				
-                case Pudp:
-                    sp = iperf_new_udp_stream(test);
-                    break;
-
-                case default:
-                    fprintf(stderr, "invalid protocol\n");
-                    exit();
-            }
-				
             iperf_add_stream(test,sp);
         }
     }

src/iperf_api.h

@@ -46,7 +46,6 @@ struct iperf_stream
 	struct sockaddr_storage local_addr;
 	struct sockaddr_storage remote_addr;
 	
-	int *(*init)(struct iperf_stream *stream);	
 	int (*rcv)(struct iperf_stream *stream);
 	int *(*snd)(struct iperf_stream *stream);
 	int *(*update_stats)(struct iperf_stream *stream);
@@ -65,6 +64,9 @@ struct iperf_test
 	
 	int listener_sock;
 
+    int *(*accept)(struct iperf_test *);
+    int *(*new_stream)(struct iperf_test *);
+	
 	int  stats_interval;					// time interval to gather stats -i
 	void *(*stats_callback)(struct iperf_test *);		// callback function pointer for stats