// Return a new copy of the program
public override Program getProgram()
{
var startTime = DateTime.Now;
Program ret;
if (unresolved_program != null)
{
FixedDuplicator dup = new FixedDuplicator();
ret = dup.VisitProgram(unresolved_program);
}
else
{
var progStr = "";
if (programStream is FileStream || programStream is MemoryStream)
{
var stream = programStream as Stream;
stream.Seek(0, SeekOrigin.Begin);
progStr = ParserHelper.Fill(stream, new List <string>());
}
else
{
Debug.Assert(programStream is string);
progStr = (string)programStream;
}
var v = Parser.Parse(progStr, "PersistentProgram", out ret);
if (v != 0)
{
writeToFile("error.bpl");
throw new InternalError("Illegal program given to PersistentProgram");
}
if (PersistentProgram.clearTokens)
{
PersistentProgram.ClearTokens(ret);
}
// TODO: use this always (sometimes .NET-2-Boogie programs crash)
if (useDuplicator)
{
FixedDuplicator dup = new FixedDuplicator();
unresolved_program = dup.VisitProgram(ret);
}
}
if (ret.Resolve() != 0)
{
writeToFile("error.bpl");
throw new InternalError("Illegal program given to PersistentProgram");
}
persistenceCost += (DateTime.Now - startTime);
return(ret);
}
public PersistentProgram run(PersistentProgram inp)
{
Debug.Assert(!alreadyRan);
alreadyRan = true;
passCount++;
// Save input
setInput(inp);
if (writeAllFiles)
{
string outfile = "tr" + passCount + "intput.bpl";
input.writeToFile(outfile);
}
Log.WriteMemUsage();
Log.WriteLine(Log.Debug, "Running transformation pass " + passCount.ToString() + ": " + passName);
//Log.WriteLine(Log.Normal, "Running transformation pass " + passCount.ToString() + ": " + passName);
Program outp = runPass(getInput(input));
// Save output
if (outp == null)
{
return(input);
}
output = recordOutput(outp);
if (writeAllFiles)
{
string outfile = "tr" + passCount + "output.bpl";
output.writeToFile(outfile);
}
return(output);
}
public void setInput(PersistentProgram p)
{
input = p;
}
virtual protected Program getInput(PersistentProgram inp)
{
return(inp.getProgram());
}
public static void CheckMemoryPressure()
{
if (PersistentProgram.memLimit == 0)
{
return;
}
// Check if we're within 80% of the limit
var mem = BoogieUtil.GetMemUsage();
if (mem < (0.8) * PersistentProgram.memLimit)
{
return;
}
PersistentProgram.FreeParserMemory();
GC.Collect();
if (changedSettingsForSavingMemory)
{
return;
}
changedSettingsForSavingMemory = true;
// Set flags
useFiles = true;
useDuplicator = false;
PersistentProgram.FreeParserMemory();
// Move all programs to disk
programs = programs.Filter(wr => wr.IsAlive);
var stat = 0;
foreach (var wr in programs)
{
var p = wr.Target as PersistentProgramIO;
if (p == null)
{
continue;
}
if (p.programStream is FileStream)
{
continue;
}
p.unresolved_program = null;
p.fileName = "temp_corral_file" + count.ToString();
count++;
if (p.programStream is MemoryStream)
{
var fs = new FileStream(p.fileName, FileMode.Create);
fs.Write((p.programStream as MemoryStream).GetBuffer(), 0, (int)(p.programStream as MemoryStream).Length);
p.programStream = fs;
}
else
{
Debug.Assert(p.programStream is string);
System.IO.File.WriteAllText(p.fileName, (string)p.programStream);
p.programStream = new FileStream(p.fileName, FileMode.Open);
}
stat++;
}
if (stat != 0)
{
Console.WriteLine("Moved {0} files to disk to save memory", stat);
}
// Force GC
GC.Collect();
}
