internal static Stream PrepareStreamed(Uri uri, HTTPResponse response)
{
if (!IsSupported)
{
return(null);
}
lock (Library)
{
if (!Library.TryGetValue(uri, out HTTPCacheFileInfo value))
{
Library.Add(uri, value = new HTTPCacheFileInfo(uri));
UsedIndexes.Add(value.MappedNameIDX, value);
}
try
{
return(value.GetSaveStream(response));
IL_005b:
Stream result;
return(result);
}
catch
{
DeleteEntity(uri);
throw;
IL_006b:
Stream result;
return(result);
}
}
}
internal static HTTPCacheFileInfo Store(Uri uri, HTTPMethods method, HTTPResponse response)
{
if (response == null || response.Data == null || response.Data.Length == 0)
{
return(null);
}
if (!IsSupported)
{
return(null);
}
HTTPCacheFileInfo value = null;
lock (Library)
{
if (!Library.TryGetValue(uri, out value))
{
Library.Add(uri, value = new HTTPCacheFileInfo(uri));
UsedIndexes.Add(value.MappedNameIDX, value);
}
try
{
value.Store(response);
return(value);
}
catch
{
DeleteEntity(uri);
throw;
IL_0087:
return(value);
}
}
}
private static void LoadLibrary()
{
if (library == null && IsSupported)
{
library = new Dictionary <Uri, HTTPCacheFileInfo>();
if (!File.Exists(LibraryPath))
{
DeleteUnusedFiles();
}
else
{
try
{
int num;
lock (library)
{
using (FileStream input = new FileStream(LibraryPath, FileMode.Open))
{
using (BinaryReader binaryReader = new BinaryReader(input))
{
num = binaryReader.ReadInt32();
if (num > 1)
{
NextNameIDX = binaryReader.ReadUInt64();
}
int num2 = binaryReader.ReadInt32();
for (int i = 0; i < num2; i++)
{
Uri uri = new Uri(binaryReader.ReadString());
HTTPCacheFileInfo hTTPCacheFileInfo = new HTTPCacheFileInfo(uri, binaryReader, num);
if (hTTPCacheFileInfo.IsExists())
{
library.Add(uri, hTTPCacheFileInfo);
if (num > 1)
{
UsedIndexes.Add(hTTPCacheFileInfo.MappedNameIDX, hTTPCacheFileInfo);
}
}
}
}
}
}
if (num == 1)
{
BeginClear();
}
else
{
DeleteUnusedFiles();
}
}
catch
{
}
}
}
}
internal static void SetBodyLength(Uri uri, int bodyLength)
{
if (IsSupported)
{
lock (Library)
{
if (Library.TryGetValue(uri, out HTTPCacheFileInfo value))
{
value.BodyLength = bodyLength;
}
else
{
Library.Add(uri, value = new HTTPCacheFileInfo(uri, DateTime.UtcNow, bodyLength));
UsedIndexes.Add(value.MappedNameIDX, value);
}
}
}
}
public static void BeginMaintainence(HTTPCacheMaintananceParams maintananceParam)
{
if (maintananceParam == null)
{
throw new ArgumentNullException("maintananceParams == null");
}
if (IsSupported && !InMaintainenceThread)
{
InMaintainenceThread = true;
SetupCacheFolder();
new Thread((ParameterizedThreadStart) delegate
{
try
{
lock (Library)
{
DateTime t = DateTime.UtcNow - maintananceParam.DeleteOlder;
List <HTTPCacheFileInfo> list = new List <HTTPCacheFileInfo>();
foreach (KeyValuePair <Uri, HTTPCacheFileInfo> item in Library)
{
if (item.Value.LastAccess < t && DeleteEntity(item.Key, removeFromLibrary: false))
{
list.Add(item.Value);
}
}
for (int i = 0; i < list.Count; i++)
{
Library.Remove(list[i].Uri);
UsedIndexes.Remove(list[i].MappedNameIDX);
}
list.Clear();
ulong num = GetCacheSize();
if (num > maintananceParam.MaxCacheSize)
{
List <HTTPCacheFileInfo> list2 = new List <HTTPCacheFileInfo>(library.Count);
foreach (KeyValuePair <Uri, HTTPCacheFileInfo> item2 in library)
{
list2.Add(item2.Value);
}
list2.Sort();
int num2 = 0;
while (num >= maintananceParam.MaxCacheSize && num2 < list2.Count)
{
try
{
HTTPCacheFileInfo hTTPCacheFileInfo = list2[num2];
ulong num3 = (ulong)hTTPCacheFileInfo.BodyLength;
DeleteEntity(hTTPCacheFileInfo.Uri);
num -= num3;
}
catch
{
}
finally
{
num2++;
}
}
}
}
}
finally
{
SaveLibrary();
InMaintainenceThread = false;
}
}).Start();
}
}
