nodelay-serial-over-tcp

来自「xen虚拟机源代码安装包」· 代码 · 共 30 行

# HG changeset patch
# User PeterJohnston <[e-mail]>
# Node ID b8cc9ffda0a3dc449b026c72c97f78dea2e6f114
# Parent  a8d2b1393b769048c7b62822e45bef27eef80fb6
[QEMU] Add TCP_NODELAY to tcp connections exporting serial ports.

Signed-off-by: Steven Smith <[e-mail]>

Index: ioemu/vl.c
===================================================================
--- ioemu.orig/vl.c	2007-05-03 10:09:02.000000000 +0100
+++ ioemu/vl.c	2007-05-03 10:09:03.000000000 +0100
@@ -2586,6 +2586,7 @@
     int is_waitconnect = 1;
     const char *ptr;
     struct sockaddr_in saddr;
+    int opt;
 
     if (parse_host_port(&saddr, host_str) < 0)
         goto fail;
@@ -2654,6 +2655,8 @@
             }
         }
         s->fd = fd;
+	opt = 1;
+	setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&opt, sizeof(opt));
         if (s->connected)
             tcp_chr_connect(chr);
         else