source: binary-improvements/7dtd-server-fixes/src/PersistentData/Inventory.cs@ 213

using System;
using System.Collections.Generic;
using System.Runtime.Serialization;
using System.Threading;

namespace AllocsFixes.PersistentData
{
        [Serializable]
        public class Inventory
        {
                public List<InvItem> bag;
                public List<InvItem> belt;

                public Inventory ()
                {
                        bag = new List<InvItem> ();
                        belt = new List<InvItem> ();
                }

                public void Update (PlayerDataFile pdf)
                {
                        //Log.Out ("Updating player inventory - player id: " + pdf.id);
                        ProcessInv (bag, pdf.bag, pdf.id);
                        ProcessInv (belt, pdf.inventory, pdf.id);
                }

                private void ProcessInv (List<InvItem> target, InventoryField[] sourceFields, int id)
                {
                        lock (target) {
                                target.Clear ();
                                for (int i = 0; i < sourceFields.Length; i++) {
                                        if (sourceFields [i].count > 0) {
                                                int count = sourceFields [i].count;
                                                int maxAllowed = ItemBase.list [sourceFields [i].itemValue.type].StackNumber;
                                                string name = getInvFieldName (sourceFields [i]);

                                                if (count > maxAllowed)
                                                        Log.Out ("Player with ID " + id + " has stack for \"" + name + "\" greater than allowed (" + count + " > " + maxAllowed + ")");
                                                target.Add (new InvItem (name, count));
                                        } else {
                                                target.Add (null);
                                        }
                                }
                        }
                }

                private string getInvFieldName (InventoryField item)
                {
                        ItemBase iBase = ItemBase.list [item.itemValue.type];
                        return iBase.GetItemName (item.itemValue);
                }


        }
}