use nodelay for a MAJOR performance boost for GNUnet code

1 files changed, 20 insertions, 0 deletions

diff --git a/src/util/network.c b/src/util/network.c
index 5ba849138..07364a36b 100644
--- a/src/util/network.c
+++ b/src/util/network.c
@@ -125,6 +125,23 @@ socket_set_inheritable (const struct GNUNET_NETWORK_Handle
 

 

 /**

+ * Disable delays when sending data via the socket.

+ * (GNUnet makes sure that messages are as big as

+ * possible already).

+ *

+ * @param h the socket to make non-delaying

+ */

+static void

+socket_set_nodelay (const struct GNUNET_NETWORK_Handle

+                    *h)

+{

+  int value = 1;

+  setsockopt (h->fd, IPPROTO_TCP, TCP_NODELAY, &value, sizeof(value));

+}

+

+

+

+/**

  * accept a new connection on a socket

  *

  * @param desc bound socket

@@ -170,6 +187,7 @@ GNUNET_NETWORK_socket_accept (const struct GNUNET_NETWORK_Handle *desc,
     GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,

                          "socket_set_inheritable");

 #endif

+  socket_set_nodelay (ret);

   return ret;

 }

 

@@ -476,6 +494,8 @@ GNUNET_NETWORK_socket_create (int domain, int type, int protocol)
     GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,

                          "socket_set_inheritable");

 #endif

+  if (type == SOCK_STREAM)

+    socket_set_nodelay (ret);

 

   return ret;

 }