// Returns a list of paths. Each path is a sequence of objects, starting
// on an object of type 'type' and ending on a root.
public PathTree GetRoots(IProgressListener listener, int type)
{
RootInfo rootInfo = new RootInfo();
PathTree pathTree = new PathTree(this);
foreach (int obj in GetObjectsByType(type))
{
rootInfo.BaseObjects [obj] = obj;
}
int nc = 0;
foreach (int obj in GetObjectsByType(type))
{
if (listener.Cancelled)
{
return(null);
}
rootInfo.nc = 0;
FindRoot(rootInfo, pathTree, obj);
// Register partial paths to the root, to avoid having to
// recalculate them again
// if (nc % 100 == 0)
// Console.WriteLine ("NC: " + nc + " " + rootInfo.Roots.Count);
pathTree.AddBaseObject(obj);
foreach (KeyValuePair <int, int[]> e in rootInfo.Roots)
{
pathTree.AddPath(e.Value);
}
rootInfo.Visited.Clear();
rootInfo.Roots.Clear();
nc++;
double newp = (double)nc / (double)rootInfo.BaseObjects.Count;
listener.ReportProgress("Looking for roots", newp);
}
pathTree.Flush();
return(pathTree);
}
//
// Code to read the log files generated at runtime
//
private void ReadLogFile(IProgressListener progress)
{
BufferHeader bheader;
long start_position = reader.Position;
long last_pct = 0;
if (header == null)
{
header = Header.Read(reader);
}
if (header == null)
{
return;
}
while (!reader.IsEof)
{
// We check if we must cancel before reading more data (and after processing all the data we've read).
// This way we don't cancel in the middle of event processing (since we store data at class level
// we may end up with corruption the next time we read the same buffer otherwise).
if (progress != null)
{
if (progress.Cancelled)
{
return;
}
long pct = (reader.Position - start_position) * 100 / (reader.Length - start_position);
if (pct != last_pct)
{
last_pct = pct;
progress.ReportProgress("Loading profiler log", pct / 100.0f);
}
}
bheader = BufferHeader.Read(reader);
if (bheader == null)
{
// entire buffer isn't available (yet)
return;
}
//Console.WriteLine ("BUFFER ThreadId: " + bheader.ThreadId + " Len:" + bheader.Length);
currentObjBase = bheader.ObjBase;
currentPtrBase = bheader.PtrBase;
while (!reader.IsBufferEmpty)
{
MetadataEvent me;
HeapEvent he;
GcEvent ge;
Event e = Event.Read(reader);
//Console.WriteLine ("Event: {0}", e);
if ((me = e as MetadataEvent) != null)
{
ReadLogFileChunk_Type(me);
}
else if ((he = e as HeapEvent) != null)
{
ReadLogFileChunk_Object(he);
}
else if ((ge = e as GcEvent) != null)
{
ReadGcEvent(ge);
}
}
}
}
//
// Code to read the log files generated at runtime
//
private void ReadLogFile(IProgressListener progress)
{
BufferHeader bheader;
long start_position = reader.Position;
long last_pct = 0;
if (header == null)
header = Header.Read (reader);
if (header == null)
return;
reader.Header = header;
while (!reader.IsEof) {
// We check if we must cancel before reading more data (and after processing all the data we've read).
// This way we don't cancel in the middle of event processing (since we store data at class level
// we may end up with corruption the next time we read the same buffer otherwise).
if (progress != null) {
if (progress.Cancelled)
return;
long pct = (reader.Position - start_position) * 100 / (reader.Length - start_position);
if (pct != last_pct) {
last_pct = pct;
progress.ReportProgress ("Loading profiler log", pct / 100.0f);
}
}
bheader = BufferHeader.Read (reader);
if (bheader == null) {
// entire buffer isn't available (yet)
return;
}
//Console.WriteLine ("BUFFER ThreadId: " + bheader.ThreadId + " Len:" + bheader.Length);
currentObjBase = bheader.ObjBase;
currentPtrBase = bheader.PtrBase;
while (!reader.IsBufferEmpty) {
MetadataEvent me;
HeapEvent he;
GcEvent ge;
Event e = Event.Read (reader);
if ((me = e as MetadataEvent) != null)
ReadLogFileChunk_Type (me);
else if ((he = e as HeapEvent) != null)
ReadLogFileChunk_Object (he);
else if ((ge = e as GcEvent) != null)
ReadGcEvent (ge);
}
}
}
