public PartitionRecord getPartition(AllocateAction allocation)
{
int PartitionsCount = simulatorModel.Partitions.Count;
LastIndex = simulatorModel.Partitions.IndexOf(getPartitionByMemoryAddress(lastGeneratedUserMemoryAddress));
if (LastIndex > PartitionsCount || LastIndex < 0)
LastIndex = 0;
for (int i = LastIndex; i < PartitionsCount; i++)
{
if (simulatorModel.Partitions.ElementAt(i).PartitionType == PartitionType.Free)
{
if (simulatorModel.Partitions.ElementAt(i).Size >= allocation.RequiredSize)
{
LastGeneratedUserMemoryAddress = generateUserMemoryAddress(simulatorModel.Partitions.ElementAt(i));
return simulatorModel.Partitions.ElementAt(i);
}
}
}
for (int i = 0; i < LastIndex; i++)
{
if (simulatorModel.Partitions.ElementAt(i).PartitionType == PartitionType.Free)
{
if (simulatorModel.Partitions.ElementAt(i).Size >= allocation.RequiredSize)
{
LastGeneratedUserMemoryAddress = generateUserMemoryAddress(simulatorModel.Partitions.ElementAt(i));
return simulatorModel.Partitions.ElementAt(i);
}
}
}
return null;
}
private void AllocateSpaceOnPartition(PartitionRecord freePartitionToUse, AllocateAction allocateAction)
{
int partitionIndex = Partitions.IndexOf(freePartitionToUse);
int difference = freePartitionToUse.Size - allocateAction.RequiredSize;
Partitions.RemoveAt(partitionIndex);
if (difference > 0)
{
Partitions.Insert(partitionIndex, new PartitionRecord(freePartitionToUse.Size - allocateAction.RequiredSize));
}
Partitions.Insert(partitionIndex, new PartitionRecord(allocateAction.RequiredSize, allocateAction.AllocatedNewSpaceId));
}
