public BufferedLoader(int size, int maxItems, BigInt32Buffer buffer) { m_size = size; m_maxItems = Math.Min(maxItems, BigNestedInt32Array.MAX_ITEMS); m_info = new BigInt32Array(size << 1); // pointer and count m_info.Fill(EOD); m_buffer = buffer; }
/// <summary> /// resets loader. This also resets underlying BigIntBuffer. /// </summary> /// <param name="size"></param> /// <param name="maxItems"></param> /// <param name="buffer"></param> public void Reset(int size, int maxItems, BigInt32Buffer buffer) { if (size >= Capacity) { throw new System.ArgumentException("unable to change size"); } m_size = size; m_maxItems = maxItems; m_info.Fill(EOD); m_buffer = buffer; }
public void TestMemoryReuse() { int maxId = 4096; int[] maxNumItems = { 1, 1, 2, 2, 3, 3, 3, 3, 1, 1 }; int[] minNumItems = { 1, 1, 0, 1, 0, 0, 2, 3, 1, 0 }; int[] count = new int[maxId]; BigInt32Buffer buffer = new BigInt32Buffer(); BigNestedInt32Array.BufferedLoader loader = null; BigNestedInt32Array nestedArray = new BigNestedInt32Array(); Random rand = new Random(); for (int i = 0; i < maxNumItems.Length; i++) { loader = new BigNestedInt32Array.BufferedLoader(maxId, BigNestedInt32Array.MAX_ITEMS, buffer); for (int id = 0; id < maxId; id++) { count[id] = 0; int cnt = Math.Max(rand.Next(maxNumItems[i] + 1), minNumItems[i]); for (int val = 0; val < cnt; val++) { if (loader.Add(id, val)) { count[id]++; } } } nestedArray.Load(maxId, loader); int[] buf = new int[1024]; for (int id = 0; id < maxId; id++) { int cnt = nestedArray.GetData(id, buf); Assert.AreEqual(count[id], cnt, "count[" + i + "," + id + "]"); if (cnt > 0) { for (int val = 0; val < cnt; val++) { Assert.AreEqual(val, buf[val], "item[" + i + "," + id + "," + val + "]"); } } } if (i == 0) { maxId = maxId * 2; count = new int[maxId]; } } }
public void TestBufferedLoaderReuse() { int maxId = 5000; int[] maxNumItems = { 25, 50, 20, 100, 15, 500, 10, 1000, 5, 2000, 2 }; int[,] count = new int[maxNumItems.Length, maxId]; var buffer = new BigInt32Buffer(); var loader = new BigNestedInt32Array.BufferedLoader(maxId, BigNestedInt32Array.MAX_ITEMS, buffer); var nestedArray = new BigNestedInt32Array[maxNumItems.Length]; for (int i = 0; i < maxNumItems.Length; i++) { for (int id = 0; id < maxId; id++) { int cnt = id % (maxNumItems[i] + 1); for (int val = 0; val < cnt; val++) { if (loader.Add(id, val)) { count[i, id]++; } } } nestedArray[i] = new BigNestedInt32Array(); nestedArray[i].Load(maxId, loader); loader.Reset(maxId, BigNestedInt32Array.MAX_ITEMS, buffer); } for (int i = 0; i < maxNumItems.Length; i++) { int[] buf = new int[1024]; for (int id = 0; id < maxId; id++) { int cnt = nestedArray[i].GetData(id, buf); Assert.AreEqual(count[i, id], cnt, "count[" + i + "," + id + "]"); if (cnt > 0) { for (int val = 0; val < cnt; val++) { Assert.AreEqual(val, buf[val], "item[" + i + "," + id + "," + val + "]"); } } } } }