public void Add(OnlineMapsCache cache, OnlineMapsTile tile, byte[] bytes)
{
#if ALLOW_FILECACHE
StringBuilder filename = cache.GetShortTilePath(tile);
string shortFilename = filename.ToString();
if (Contains(shortFilename))
{
return;
}
string fullFilename = cache.GetFullTilePath(shortFilename);
OnlineMapsThreadManager.AddThreadAction(() =>
{
FileInfo fileInfo = new FileInfo(fullFilename);
if (!Directory.Exists(fileInfo.DirectoryName))
{
Directory.CreateDirectory(fileInfo.DirectoryName);
}
File.WriteAllBytes(fullFilename, bytes);
});
AddItem(shortFilename, bytes.Length);
_size += bytes.Length;
#endif
}
public void DeleteOldItems(OnlineMapsCache cache)
{
#if ALLOW_FILECACHE
int countUnload = Mathf.RoundToInt(count * cache.fileCacheUnloadRate);
if (countUnload <= 0)
{
throw new Exception("Can not unload a negative number of items. Check fileCacheUnloadRate.");
}
if (count < countUnload)
{
countUnload = count;
}
long[] unloadTimes = new long[countUnload];
int[] unloadIndices = new int[countUnload];
int c = 0;
for (int i = 0; i < count; i++)
{
long t = items[i].time;
if (c == 0)
{
unloadIndices[0] = 0;
unloadTimes[0] = t;
c++;
}
else
{
int index = c;
int index2 = index - 1;
while (index2 >= 0)
{
if (unloadTimes[index2] < t)
{
break;
}
index2--;
index--;
}
if (index < countUnload)
{
for (int j = countUnload - 1; j > index; j--)
{
unloadIndices[j] = unloadIndices[j - 1];
unloadTimes[j] = unloadTimes[j - 1];
}
unloadIndices[index] = i;
unloadTimes[index] = t;
if (c < countUnload)
{
c++;
}
}
}
}
for (int i = 0; i < countUnload; i++)
{
int index = unloadIndices[i];
_size -= items[index].size;
string fullFilename = cache.GetFullTilePath(items[index].filename);
if (File.Exists(fullFilename))
{
File.Delete(fullFilename);
}
items[index] = null;
}
int offset = 0;
for (int i = 0; i < count; i++)
{
if (items[i] == null)
{
offset++;
}
else if (offset > 0)
{
items[i - offset] = items[i];
}
}
count -= countUnload;
#endif
}
