From 50d4b37a7dec6976f133a16504ec5958e5295d3b Mon Sep 17 00:00:00 2001
From: Richard Harrison <rjh@zaretto.com>
Date: Tue, 7 May 2019 05:16:21 +0200
Subject: [PATCH] Nasal timestamp - add elapsed uSec
---
src/Scripting/NasalSys.cxx | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/src/Scripting/NasalSys.cxx b/src/Scripting/NasalSys.cxx
index 74d6c313e..4e053a182 100644
--- a/src/Scripting/NasalSys.cxx
+++ b/src/Scripting/NasalSys.cxx
@@ -211,12 +211,15 @@ static void f_timerObj_setSimTime(TimerObj& timer, naContext c, naRef value)
}
////////////////////
/// Timestamp - used to provide millisecond based timing of operations. See SGTimeStamp
+////
+/// 0.373404us to perform elapsedUSec from Nasal : Tested i7-4790K, Win64
class TimeStampObj : public SGReferenced
{
public:
TimeStampObj(Context *c, FGNasalSys* sys) :
_sys(sys)
{
+ timestamp.stamp();
}
virtual ~TimeStampObj()
@@ -227,10 +230,14 @@ public:
{
timestamp.stamp();
}
- int elapsedMSec()
+ double elapsedMSec()
{
return timestamp.elapsedMSec();
}
+ double elapsedUSec()
+ {
+ return timestamp.elapsedUSec();
+ }
private:
SGTimeStamp timestamp;
FGNasalSys* _sys;
@@ -986,6 +993,7 @@ void FGNasalSys::init()
NasalTimeStampObj::init("TimeStamp")
.method("stamp", &TimeStampObj::stamp)
.method("elapsedMSec", &TimeStampObj::elapsedMSec)
+ .method("elapsedUSec", &TimeStampObj::elapsedUSec)
;
flightgear::addons::initAddonClassesForNasal(_globals, _context);