From 7046fc9dc202307ba92d05a6386bfb52e9db0ab9 Mon Sep 17 00:00:00 2001
From: Stefan Boberg <stefan.boberg@epicgames.com>
Date: Wed, 12 Mar 2025 13:54:16 +0100
Subject: fixes for log timestamps (#304)

* add GetTimeSinceProcessStart returning time since process start. implemented using https://github.com/maxliani/GetTimeSinceProcessStart/tree/main
* fix fractions when using epoch mode. Previously it would show the fraction from the absolute time stamp and not relative to epoch
* used GetTimeSinceProcessStart to offset the epoch so that it represents the process spawn time
---
 src/zencore/timer.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'src/zencore/timer.cpp')

diff --git a/src/zencore/timer.cpp b/src/zencore/timer.cpp
index 1655e912d..95536cb26 100644
--- a/src/zencore/timer.cpp
+++ b/src/zencore/timer.cpp
@@ -12,8 +12,19 @@
 #	include <unistd.h>
 #endif
 
+#define GTSPS_IMPLEMENTATION
+#include "GetTimeSinceProcessStart.h"
+
 namespace zen {
 
+uint64_t
+GetTimeSinceProcessStart()
+{
+	double TimeInSeconds = ::GetTimeSinceProcessStart();
+
+	return uint64_t(TimeInSeconds * 1000);
+}
+
 uint64_t
 GetHifreqTimerValue()
 {
-- 
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