From 910b2fb75a2ce2c6660fe70334c24c9407910a1a Mon Sep 17 00:00:00 2001
From: Pol Henarejos <pol.henarejos@cttc.es>
Date: Tue, 5 Sep 2023 18:14:18 +0200
Subject: [PATCH] Added NO_DELAY in emulation env.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
---
 src/usb/emulation/emulation.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/usb/emulation/emulation.c b/src/usb/emulation/emulation.c
index 6b01383..0c38134 100644
--- a/src/usb/emulation/emulation.c
+++ b/src/usb/emulation/emulation.c
@@ -31,6 +31,7 @@
 #include "apdu.h"
 #include "usb.h"
 #include "ccid/ccid.h"
+#include <netinet/tcp.h>
 
 int ccid_sock = 0;
 int hid_server_sock = 0;
@@ -86,6 +87,8 @@ int emul_init(char *host, uint16_t port) {
     }
     int x = fcntl(ccid_sock, F_GETFL, 0);
     fcntl(ccid_sock, F_SETFL, x | O_NONBLOCK);
+    int flag = 1;
+    setsockopt(ccid_sock, IPPROTO_TCP, TCP_NODELAY, (char *)&flag, sizeof(int));
 
     // HID server