From f3590edfa0737e33090f45c76e8f3a510ed2bc72 Mon Sep 17 00:00:00 2001
From: mattijs <mattijs>
Date: Thu, 23 Feb 2012 14:55:28 +0000
Subject: [PATCH] BUG: Time: restart with non-standard Time (e.g. engineTime)
 compared values instead of names.

---
 src/OpenFOAM/db/Time/Time.C        | 49 ++++++++++++++++++++++--------
 src/OpenFOAM/db/Time/TimeIO.C      |  9 ++++--
 src/engine/engineTime/engineTime.C |  9 +++---
 3 files changed, 47 insertions(+), 20 deletions(-)

diff --git a/src/OpenFOAM/db/Time/Time.C b/src/OpenFOAM/db/Time/Time.C
index 7ba18b3cc8..19a6c2b321 100644
--- a/src/OpenFOAM/db/Time/Time.C
+++ b/src/OpenFOAM/db/Time/Time.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -221,20 +221,43 @@ void Foam::Time::setControls()
         timeIndex_ = startTimeIndex_;
     }
 
-    scalar timeValue;
-    if (timeDict.readIfPresent("value", timeValue))
-    {
-        word storedTimeName(timeName(timeValue));
 
-        if (storedTimeName != timeName())
+    // Check if values stored in time dictionary are consistent
+
+    // 1. Based on time name
+    bool checkValue = true;
+
+    string storedTimeName;
+    if (timeDict.readIfPresent("name", storedTimeName))
+    {
+        if (storedTimeName == timeName())
         {
-            IOWarningIn("Time::setControls()", timeDict)
-                << "Time read from time dictionary " << storedTimeName
-                << " differs from actual time " << timeName() << '.' << nl
-                << "    This may cause unexpected database behaviour."
-                << " If you are not interested" << nl
-                << "    in preserving time state delete the time dictionary."
-                << endl;
+            // Same time. No need to check stored value
+            checkValue = false;
+        }
+    }
+
+    // 2. Based on time value
+    //    (consistent up to the current time writing precision so it won't
+    //     trigger if we just change the write precision)
+    if (checkValue)
+    {
+        scalar storedTimeValue;
+        if (timeDict.readIfPresent("value", storedTimeValue))
+        {
+            word storedTimeName(timeName(storedTimeValue));
+
+            if (storedTimeName != timeName())
+            {
+                IOWarningIn("Time::setControls()", timeDict)
+                    << "Time read from time dictionary " << storedTimeName
+                    << " differs from actual time " << timeName() << '.' << nl
+                    << "    This may cause unexpected database behaviour."
+                    << " If you are not interested" << nl
+                    << "    in preserving time state delete"
+                    << " the time dictionary."
+                    << endl;
+            }
         }
     }
 }
diff --git a/src/OpenFOAM/db/Time/TimeIO.C b/src/OpenFOAM/db/Time/TimeIO.C
index fcf0a969e2..557ebdddcb 100644
--- a/src/OpenFOAM/db/Time/TimeIO.C
+++ b/src/OpenFOAM/db/Time/TimeIO.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -293,12 +293,14 @@ bool Foam::Time::writeObject
 {
     if (outputTime())
     {
+        const word tmName(timeName());
+
         IOdictionary timeDict
         (
             IOobject
             (
                 "time",
-                timeName(),
+                tmName,
                 "uniform",
                 *this,
                 IOobject::NO_READ,
@@ -308,6 +310,7 @@ bool Foam::Time::writeObject
         );
 
         timeDict.add("value", value());
+        timeDict.add("name", string(tmName));
         timeDict.add("index", timeIndex_);
         timeDict.add("deltaT", deltaT_);
         timeDict.add("deltaT0", deltaT0_);
@@ -317,7 +320,7 @@ bool Foam::Time::writeObject
 
         if (writeOK && purgeWrite_)
         {
-            previousOutputTimes_.push(timeName());
+            previousOutputTimes_.push(tmName);
 
             while (previousOutputTimes_.size() > purgeWrite_)
             {
diff --git a/src/engine/engineTime/engineTime.C b/src/engine/engineTime/engineTime.C
index f662f58596..0933218bd7 100644
--- a/src/engine/engineTime/engineTime.C
+++ b/src/engine/engineTime/engineTime.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -91,9 +91,10 @@ Foam::engineTime::engineTime
 
     timeAdjustment();
 
-    startTime_ = degToTime(startTime_);
-    value()    = degToTime(value());
-    deltaT0_   = deltaT_;
+    startTime_  = degToTime(startTime_);
+    value()     = degToTime(value());
+    deltaTSave_ = deltaT_;
+    deltaT0_    = deltaT_;
 }