From e41145dcd2c10ec8668d38bcb7b959010edab55b Mon Sep 17 00:00:00 2001
From: Willi Braun <wbraun@fh-bielefeld.de>
Date: Wed, 5 Nov 2014 21:42:26 +0000
Subject: [PATCH]  - fixed #2878.

git-svn-id: https://openmodelica.org/svn/OpenModelica/trunk@23223 f25d12d1-65f4-0310-ae8a-bbce733d8d8e
---
 SimulationRuntime/c/simulation/solver/dassl.c | 21 +++++++++++++++++--
 .../c/simulation/solver/perform_simulation.c  |  3 ++-
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/SimulationRuntime/c/simulation/solver/dassl.c b/SimulationRuntime/c/simulation/solver/dassl.c
index 0c5e4987903..b092322c514 100644
--- a/SimulationRuntime/c/simulation/solver/dassl.c
+++ b/SimulationRuntime/c/simulation/solver/dassl.c
@@ -449,7 +449,9 @@ int dassl_step(DATA* data, SOLVER_INFO* solverInfo)
   double tout = 0;
   int i = 0;
   unsigned int ui = 0;
-  int retVal = 0;
+  int retVal = 1;
+  int saveJumpState;
+  threadData_t *threadData = data->threadData;
 
   DASSL_DATA *dasslData = (DASSL_DATA*) solverInfo->solverData;
 
@@ -468,6 +470,14 @@ int dassl_step(DATA* data, SOLVER_INFO* solverInfo)
 
   TRACE_PUSH
 
+  saveJumpState = data->threadData->currentErrorStage;
+  data->threadData->currentErrorStage = ERROR_INTEGRATOR;
+
+  /* try */
+#if !defined(OMC_EMCC)
+  MMC_TRY_INTERNAL(simulationJumpBuffer)
+#endif
+
   assertStreamPrint(data->threadData, 0 != dasslData->rpar, "could not passed to DDASKR");
 
   /* If an event is triggered and processed restart dassl. */
@@ -510,7 +520,7 @@ int dassl_step(DATA* data, SOLVER_INFO* solverInfo)
     solverInfo->currentTime = tout;
 
     TRACE_POP
-    return retVal;
+    return 0;
   }
 
   /* If dasslsteps is selected, we just use the outer ring buffer */
@@ -597,6 +607,13 @@ int dassl_step(DATA* data, SOLVER_INFO* solverInfo)
 
   } while(dasslData->idid == 1 ||
           (dasslData->idid == -1 && solverInfo->currentTime <= data->simulationInfo.stopTime));
+  retVal = 0;
+
+#if !defined(OMC_EMCC)
+  MMC_CATCH_INTERNAL(simulationJumpBuffer)
+#endif
+  data->threadData->currentErrorStage = saveJumpState;
+
 
   if (!dasslData->dasslSteps)
   {
diff --git a/SimulationRuntime/c/simulation/solver/perform_simulation.c b/SimulationRuntime/c/simulation/solver/perform_simulation.c
index a2f112f947b..6d0274c853c 100644
--- a/SimulationRuntime/c/simulation/solver/perform_simulation.c
+++ b/SimulationRuntime/c/simulation/solver/perform_simulation.c
@@ -162,7 +162,7 @@ int prefixedName_performSimulation(DATA* data, SOLVER_INFO* solverInfo)
       }
       solverInfo->currentStepSize = (double)(__currStepNo*(simInfo->stopTime-simInfo->startTime))/(simInfo->numSteps) + simInfo->startTime - solverInfo->currentTime;
 
-      // if retry reduce stepsize
+      /* if retry reduce stepsize */
       if(0 != retry)
       {
         solverInfo->currentStepSize /= 2;
@@ -348,6 +348,7 @@ int prefixedName_performSimulation(DATA* data, SOLVER_INFO* solverInfo)
         restoreOldValues(data);
         solverInfo->currentTime = data->localData[0]->timeValue;
         overwriteOldSimulationData(data);
+        updateDiscreteSystem(data);
         warningStreamPrint(LOG_STDOUT, 0, "Integrator attempt to handle a problem with a called assert.");
         retry = 1;
         solverInfo->didEventStep = 1;