public static bool HasReferers(MessageBus msgBus, ClrDump clrDump, IEnumerable<ulong> addresses)
{
foreach(ulong address in addresses) {
if (clrDump.HasReferers(address))
{
return true;
}
}
return false;
}
public static bool HasReferers(MessageBus msgBus, ClrDump clrDump, IEnumerable <ulong> addresses)
{
foreach (ulong address in addresses)
{
if (clrDump.HasReferers(address))
{
return(true);
}
}
return(false);
}
public static List <RootPathInformation> AnalyzeRootPath(MessageBus msgBus, ClrDumpObject clrDumpObject)
{
ClrDump clrDump = clrDumpObject.ClrDump;
ulong address = clrDumpObject.Address;
CancellationTokenSource token = new CancellationTokenSource();
msgBus.BeginTask("Analysing Root Path...", token);
if (token.IsCancellationRequested)
{
msgBus.EndTask("Root Path analysis: cancelled.");
return(null);
}
msgBus.Status("Analysing Root Path: collecting root instances...");
var roots = new HashSet <ulong>(clrDump.EnumerateClrRoots.Select(clrRoot => clrRoot.Object));
if (logger.IsDebugEnabled)
{
logger.Debug("Roots: " + Str(roots));
}
List <ulong> bestPath = null;
var currentPath = new List <ulong>();
bool result = FindShortestPath(address, currentPath, ref bestPath, clrDump.GetReferers, roots.Contains, new Dictionary <ulong, List <ulong> >());
if (!result)
{
currentPath = new List <ulong>();
FindShortestPath(address, currentPath, ref bestPath, clrDump.GetReferers, (addr) => !clrDump.HasReferers(addr), new Dictionary <ulong, List <ulong> >());
}
List <RootPathInformation> path = new List <RootPathInformation>();
ulong prevAddress = address;
if (bestPath != null)
{
foreach (var refAddress in bestPath)
{
var refClrDumpObject = new ClrDumpObject(clrDump, clrDump.GetObjectType(refAddress), refAddress);
var fieldName = refAddress == address ? " - " : clrDump.GetFieldNameReference(prevAddress, refAddress);
fieldName = TypeHelpers.RealName(fieldName);
path.Add(new RootPathInformation(refClrDumpObject, fieldName));
prevAddress = refAddress;
}
msgBus.EndTask("Root Path found.");
}
else
{
msgBus.EndTask("Root Path NOT found.");
}
return(path);
}
