/// <summary> Updates internal state with allocation. </summary>
private static void HandleMalloc(FStreamToken StreamToken, FStreamSnapshot Snapshot, Dictionary <ulong, FLiveAllocationInfo> PointerToPointerInfoMap)
{
// Keep track of size associated with pointer and also current callstack.
var PointerInfo = new FLiveAllocationInfo(StreamToken.Size, StreamToken.CallStackIndex, StreamToken.TagsIndex);
if (PointerToPointerInfoMap.ContainsKey(StreamToken.Pointer))
{
Debug.WriteLine("Same pointer malloced twice without being freed: " + StreamToken.Pointer + " in pool " + StreamToken.Pool);
PointerToPointerInfoMap.Remove(StreamToken.Pointer);
}
PointerToPointerInfoMap.Add(StreamToken.Pointer, PointerInfo);
if (StreamToken.CallStackIndex >= FStreamInfo.GlobalInstance.CallStackArray.Count)
{
Debug.WriteLine("CallStackIndex out of range!");
return;
}
// Add size to lifetime churn tracking.
while (StreamToken.CallStackIndex >= Snapshot.LifetimeCallStackList.Count)
{
Snapshot.LifetimeCallStackList.Add(new FCallStackAllocationInfo(0, Snapshot.LifetimeCallStackList.Count, 0, -1));
}
Snapshot.LifetimeCallStackList[StreamToken.CallStackIndex].Add(StreamToken.Size, 1, StreamToken.TagsIndex);
if (Snapshot.AllocationSize > Snapshot.AllocationMaxSize)
{
Snapshot.AllocationMaxSize = Snapshot.AllocationSize;
}
// Maintain timeline view
Snapshot.AllocationSize += PointerInfo.Size;
Snapshot.AllocationCount++;
if (Snapshot.AllocationCount % AllocationsPerSlice == 0)
{
FMemorySlice Slice = new FMemorySlice(Snapshot);
Snapshot.OverallMemorySlice.Add(Slice);
Snapshot.AllocationMaxSize = 0;
}
}
/// <summary> Updates internal state with free. </summary>
private static bool HandleFree(FStreamToken StreamToken, FStreamSnapshot Snapshot, Dictionary <ulong, FLiveAllocationInfo> PointerToPointerInfoMap, out FLiveAllocationInfo FreedAllocInfo)
{
if (!PointerToPointerInfoMap.TryGetValue(StreamToken.Pointer, out FreedAllocInfo))
{
Debug.WriteLine("Free without malloc: " + StreamToken.Pointer + " in pool " + StreamToken.Pool);
return(false);
}
// Maintain timeline view
Snapshot.AllocationSize -= FreedAllocInfo.Size;
Snapshot.AllocationCount++;
if (Snapshot.AllocationCount % AllocationsPerSlice == 0)
{
FMemorySlice Slice = new FMemorySlice(Snapshot);
Snapshot.OverallMemorySlice.Add(Slice);
}
// Remove freed pointer if it is in the array.
PointerToPointerInfoMap.Remove(StreamToken.Pointer);
return(true);
}