From 1f66f7ab4e7b32fb571cb5c95819df2895073b5a Mon Sep 17 00:00:00 2001
From: Christian Deacon <christianmdeacon@gmail.com>
Date: Thu, 13 Jun 2024 19:23:54 -0400
Subject: [PATCH] Add NANO_TO_SEC constant.

---
 src/xdpfw.h      | 1 +
 src/xdpfw_kern.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/xdpfw.h b/src/xdpfw.h
index 29597cf..0cadb43 100644
--- a/src/xdpfw.h
+++ b/src/xdpfw.h
@@ -6,6 +6,7 @@
 #define MAX_FILTERS 80
 #define MAX_TRACK_IPS 100000
 #define MAX_CPUS 256
+#define NANO_TO_SEC 1000000000
 
 #ifdef __BPF__
 #define likely(x) __builtin_expect(!!(x), 1)
diff --git a/src/xdpfw_kern.c b/src/xdpfw_kern.c
index 81933f1..034a680 100644
--- a/src/xdpfw_kern.c
+++ b/src/xdpfw_kern.c
@@ -202,7 +202,7 @@ int xdp_prog_main(struct xdp_md *ctx)
     if (ip_stats)
     {
         // Check for reset.
-        if ((now - ip_stats->tracking) > 1000000000)
+        if ((now - ip_stats->tracking) > NANO_TO_SEC)
         {
             ip_stats->pps = 0;
             ip_stats->bps = 0;