From 2a1fbbd629e4c1d7f636bbb7817bea1ba082981a Mon Sep 17 00:00:00 2001
From: folkert van heusden <mail@vanheusden.com>
Date: 周五, 19 11月 2021 05:00:39 +0800
Subject: [PATCH] The problem of the fragmented *IDN? response can be mitigated somewhat by enabling nagle during the response to that command.
---
examples/test-tcp/main.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/examples/test-tcp/main.c b/examples/test-tcp/main.c
index 3853e01..f67df33 100644
--- a/examples/test-tcp/main.c
+++ b/examples/test-tcp/main.c
@@ -45,6 +45,7 @@
#include <errno.h>
#include <arpa/inet.h>
#include <unistd.h>
+#include <netinet/tcp.h>
#include "scpi/scpi.h"
#include "../common/scpi-def.h"
@@ -193,7 +194,7 @@
listenfd = createServer(5025);
while (1) {
- int clifd;
+ int clifd, flag = 0;
struct sockaddr_in cliaddr;
socklen_t clilen;
@@ -202,6 +203,8 @@
if (clifd < 0) continue;
+ setsockopt(clifd, IPPROTO_TCP, TCP_NODELAY, (char *)&flag, sizeof(int));
+
printf("Connection established %s\r\n", inet_ntoa(cliaddr.sin_addr));
scpi_context.user_context = &clifd;
--
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