internal void RecordGc(int tickIndex, SampleObjectTable sampleObjectTable, bool simpleForm)
{
if (simpleForm && nullRelocationsSeen || newLiveRoot != null)
{
// in this case assume anything not reported is dead
updateRoot = SortIntervals(updateRoot);
ulong prevHiAddr = 0;
for (Interval i = updateRoot; i != null; i = i.next)
{
if (prevHiAddr < i.loAddr)
{
RemoveRange(prevHiAddr, i.loAddr, tickIndex, sampleObjectTable);
}
if (prevHiAddr < i.hiAddr)
prevHiAddr = i.hiAddr;
}
RemoveRange(prevHiAddr, ulong.MaxValue, tickIndex, sampleObjectTable);
updateRoot = null;
if (newLiveRoot != null)
{
liveRoot = newLiveRoot;
newLiveRoot = null;
}
}
else
{
for (Interval i = liveRoot; i != null; i = i.next)
i.justHadGc = true;
}
nullRelocationsSeen = false;
}
internal bool AddObject(ulong id, uint size, int allocTickIndex, SampleObjectTable sampleObjectTable)
{
size = (size + 3) & (uint.MaxValue - 3);
Interval prevInterval = null;
Interval bestInterval = null;
Interval prevI = null;
bool emptySpace = false;
// look for the best interval to put this object in.
for (Interval i = liveRoot; i != null; i = i.next)
{
if (i.loAddr < id + size && id <= i.hiAddr + allowableGap)
{
if (bestInterval == null || bestInterval.loAddr < i.loAddr)
{
bestInterval = i;
prevInterval = prevI;
}
}
prevI = i;
}
if (bestInterval != null)
{
if (bestInterval.loAddr > id)
{
bestInterval.loAddr = id;
}
if (id < bestInterval.hiAddr)
{
if (bestInterval.hadRelocations && bestInterval.justHadGc)
{
// Interval gets shortened
liveObjectTable.RemoveObjectRange(id, bestInterval.hiAddr - id, allocTickIndex, sampleObjectTable);
bestInterval.hiAddr = id + size;
bestInterval.justHadGc = false;
}
}
else
{
bestInterval.hiAddr = id + size;
emptySpace = true;
}
if (prevInterval != null)
{
// Move to front to speed up future searches.
prevInterval.next = bestInterval.next;
bestInterval.next = liveRoot;
liveRoot = bestInterval;
}
if (OverlappingInterval(bestInterval) != null)
MergeInterval(bestInterval);
return emptySpace;
}
liveRoot = new Interval(id, id + size, -1, liveRoot);
//Debug.Assert(OverlappingInterval(liveRoot) == null);
return emptySpace;
}
private void RemoveRange(ulong loAddr, ulong hiAddr, int tickIndex, SampleObjectTable sampleObjectTable)
{
Interval next;
for (Interval i = liveRoot; i != null; i = next)
{
next = i.next;
ulong lo = Math.Max(loAddr, i.loAddr);
ulong hi = Math.Min(hiAddr, i.hiAddr);
if (lo >= hi)
continue;
liveObjectTable.RemoveObjectRange(lo, hi - lo, tickIndex, sampleObjectTable);
if (i.hiAddr == hi)
{
if (i.loAddr == lo)
DeleteInterval(i);
else
i.hiAddr = lo;
}
}
}
internal void RecordGc(int tickIndex, int gcGen0Count, int gcGen1Count, int gcGen2Count, SampleObjectTable sampleObjectTable)
{
int gen = 0;
if (gcGen2Count != lastGcGen2Count)
gen = 2;
else if (gcGen1Count != lastGcGen1Count)
gen = 1;
RecordGc(tickIndex, gen, sampleObjectTable, false);
lastGcGen0Count = gcGen0Count;
lastGcGen1Count = gcGen1Count;
lastGcGen2Count = gcGen2Count;
}
internal void RecordGc(int tickIndex, int gen, SampleObjectTable sampleObjectTable, bool simpleForm)
{
lastTickIndex = tickIndex;
if (sampleObjectTable != null)
sampleObjectTable.AddGcTick(tickIndex, gen);
intervalTable.RecordGc(tickIndex, sampleObjectTable, simpleForm);
if (gen >= 1)
gen2LimitTickIndex = gen1LimitTickIndex;
gen1LimitTickIndex = tickIndex;
lastGcGen0Count++;
if (gen > 0)
{
lastGcGen1Count++;
if (gen > 1)
lastGcGen2Count++;
}
}
internal void UpdateObjects(Histogram relocatedHistogram, ulong oldId,
ulong newId, uint length, int tickIndex, SampleObjectTable sampleObjectTable)
{
if (lastPos >= readNewLog.pos)
return;
lastPos = readNewLog.pos;
lastTickIndex = tickIndex;
intervalTable.Relocate(oldId, newId, length);
if (oldId == newId)
return;
ulong nextId;
ulong lastId = oldId + length;
LiveObject o;
for (GetNextObject(oldId, lastId, out o); o.id < lastId; GetNextObject(nextId, lastId, out o))
{
nextId = o.id + o.size;
ulong offset = o.id - oldId;
if (sampleObjectTable != null)
sampleObjectTable.Delete(o.id, o.id + o.size, tickIndex);
Zero(o.id, o.size);
InsertObject(newId + offset, o.typeSizeStacktraceIndex, o.allocTickIndex, tickIndex, false, sampleObjectTable);
if (relocatedHistogram != null)
relocatedHistogram.AddObject(o.typeSizeStacktraceIndex, 1);
}
}
void RemoveObjectRange(ulong firstId, ulong length, int tickIndex, SampleObjectTable sampleObjectTable)
{
ulong lastId = firstId + length;
if (sampleObjectTable != null)
sampleObjectTable.Delete(firstId, lastId, tickIndex);
Zero(firstId, length);
}
internal void InsertObject(ulong id, int typeSizeStacktraceIndex, int allocTickIndex, int nowTickIndex, bool newAlloc, SampleObjectTable sampleObjectTable)
{
if (lastPos >= readNewLog.pos && newAlloc)
return;
lastPos = readNewLog.pos;
lastTickIndex = nowTickIndex;
int[] stacktrace = readNewLog.stacktraceTable.IndexToStacktrace(typeSizeStacktraceIndex);
int typeIndex = stacktrace[0];
uint size = (uint)stacktrace[1];
bool emptySpace = false;
if (newAlloc)
{
emptySpace = intervalTable.AddObject(id, size, allocTickIndex, sampleObjectTable);
}
if (!emptySpace)
{
ulong prevId = FindObjectBackward(id - 4);
LiveObject o;
GetNextObject(prevId, id, out o);
if (o.id < id && (o.id + o.size > id || o.id + 12 > id))
{
Zero(o.id, id - o.id);
}
}
//Debug.Assert(FindObjectBackward(id - 4) + 12 <= id);
if (size >= 12)
{
ushort u1 = (ushort)(typeSizeStacktraceIndex | 0x8000);
ushort u2 = (ushort)((typeSizeStacktraceIndex >> 15) | ((allocTickIndex & 0xff) << 7));
ushort u3 = (ushort)(allocTickIndex >> 8);
Write3WordsAt(id, u1, u2, u3);
if (!emptySpace)
Zero(id + 12, size - 12);
//Debug.Assert(CanReadObjectBackCorrectly(id, size, typeSizeStacktraceIndex, allocTickIndex));
}
if (sampleObjectTable != null)
sampleObjectTable.Insert(id, id + size, nowTickIndex, allocTickIndex, typeIndex);
}
