From 5c7723309302a0edca4f14be0fdd1835cd977949 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adrien=20Gallou=C3=ABt?= <adrien@gallouet.fr>
Date: Thu, 30 Jun 2016 09:38:51 +0000
Subject: [PATCH] Use clock_gettime()

---
 mud.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/mud.c b/mud.c
index 6ab4f7f..03902ba 100644
--- a/mud.c
+++ b/mud.c
@@ -17,6 +17,7 @@
 #include <string.h>
 #include <errno.h>
 #include <fcntl.h>
+#include <time.h>
 #include <sys/ioctl.h>
 #include <sys/socket.h>
 #include <sys/time.h>
@@ -173,9 +174,17 @@ uint64_t mud_read48 (const unsigned char *src)
 static
 uint64_t mud_now (struct mud *mud)
 {
-    struct timeval now;
-    gettimeofday(&now, NULL);
-    return (now.tv_sec*MUD_ONE_SEC+now.tv_usec)&((UINT64_C(1)<<48)-1);
+    uint64_t now;
+#if defined CLOCK_MONOTONIC
+    struct timespec tv;
+    clock_gettime(CLOCK_MONOTONIC, &tv);
+    now = tv.tv_sec*MUD_ONE_SEC+tv.tv_nsec/MUD_ONE_MSEC;
+#else
+    struct timeval tv;
+    gettimeofday(&tv, NULL);
+    now = tv.tv_sec*MUD_ONE_SEC+tv.tv_usec;
+#endif
+    return now&((UINT64_C(1)<<48)-1);
 }
 
 static