Exemple #1
0
        static void Main()
        {
            IntPtr heapsOffset, lastHeapByte;

            Console.WriteLine("This proram enumerates all available strings in last ephemeral segment");

            MemAccessor.GetManagedHeap(out heapsOffset, out lastHeapByte);

            // looking up structures
            if (heapsOffset != IntPtr.Zero)
            {
                EnumerateStrings(heapsOffset, lastHeapByte);
            }
            Console.ReadKey();
        }
Exemple #2
0
        private static unsafe void Main()
        {
            var objects = new Dictionary <Type, int>(7000);

            // Get current heap ranges
            IntPtr managedStart, managedEnd;

            Console.ReadKey();
            MemAccessor.GetManagedHeap(out managedStart, out managedEnd);

            // for each byte in virtual memory block, we trying to find strings
            var stopwatch = Stopwatch.StartNew();

            for (IntPtr *ptr = (IntPtr *)managedStart, end = (IntPtr *)managedEnd; ptr < end; ptr++)
            {
                if (IsCorrectMethodsTable(*ptr))
                {
                    // checking next object.
                    int size;
                    try
                    {
                        size = GCEx.SizeOf((EntityInfo *)(ptr - 1)) >> 2;
                    }
                    catch (OverflowException)
                    {
                        continue;
                    }

                    if (ptr + size > (long *)managedEnd)
                    {
                        continue;
                    }

                    {
                        var found = EntityPtr.ToInstance <object>((IntPtr)(ptr - 1));
                        RegisterObject(objects, found);

                        var lastInChain = found;
                        foreach (var item in GCEx.GetObjectsInSOH(found, hmt => IsCorrectMethodsTable((IntPtr)hmt)))
                        {
                            RegisterObject(objects, item.Item);
                            if (!item.IsArrayItem)
                            {
                                lastInChain = item.Item;
                            }
                        }

                        long lastRecognized = (long)EntityPtr.ToPointer(lastInChain);
                        ptr = (IntPtr *)(lastRecognized + lastInChain.SizeOf());
                    }
                }
            }

            var timeToTakeSnapshot = stopwatch.ElapsedMilliseconds;

            foreach (var type in objects.Keys.OrderByDescending(key => objects[key]))
            {
                Console.WriteLine("{0:00000} : {1}", objects[type], type.FullName);
            }

            Console.WriteLine("Objects total: {0}. Time taken: {1}", objects.Values.Sum(), timeToTakeSnapshot);
            Console.ReadKey();
        }