Set TCP_NODELAY on backend socket.

bumptech · Oct 13, 2011 · 7ad212a3f8a1416b8ac997a54e2dd58840f75851 · 7ad212a
1 parent 970b1bc
commit 7ad212a3f8a1416b8ac997a54e2dd58840f75851
Unified Split

Showing with 9 additions and 3 deletions.

+9 −3 stud.c
diff --git a/stud.c b/stud.c
@@ -371,7 +371,13 @@ static int create_back_socket() {

    if (s == -1)
      return -1;
-      
+
+    int flag = 1;
+    int ret = setsockopt(s, IPPROTO_TCP, TCP_NODELAY, (char *)&flag, sizeof(flag));
+    if (ret == -1) {
+      perror("Couldn't setsockopt to backend (TCP_NODELAY)\n");
+    }
+
    int t = 1;
    setnonblocking(s);
    t = connect(s, backaddr->ai_addr, backaddr->ai_addrlen);
@@ -738,13 +744,13 @@ static void handle_accept(struct ev_loop *loop, ev_io *w, int revents) {
    int flag = 1;
    int ret = setsockopt(client, IPPROTO_TCP, TCP_NODELAY, (char *)&flag, sizeof(flag) );
    if (ret == -1) {
-      perror("Couldn't setsockopt(TCP_NODELAY)\n");
+      perror("Couldn't setsockopt on client (TCP_NODELAY)\n");
    }
 #ifdef TCP_CWND
    int cwnd = 10;
    ret = setsockopt(client, IPPROTO_TCP, TCP_CWND, &cwnd, sizeof(cwnd));
    if (ret == -1) {
-      perror("Couldn't setsockopt(TCP_CWND)\n");
+      perror("Couldn't setsockopt on client (TCP_CWND)\n");
    }
 #endif