// Token: 0x0600001E RID: 30 RVA: 0x000024BC File Offset: 0x000006BC
public byte[] Unwrap(ArraySegment <byte> src, int maxDecompressedSize = 2147483647)
{
if (src.Count == 0)
{
return(new byte[0]);
}
ulong decompressedSize = Decompressor.GetDecompressedSize(src);
if (decompressedSize == 0UL)
{
throw new ZstdException("Can't create buffer for data with unspecified decompressed size (provide your own buffer to Unwrap instead)");
}
if (decompressedSize > (ulong)((long)maxDecompressedSize))
{
throw new ArgumentOutOfRangeException(string.Format("Decompressed size is too big ({0} bytes > authorized {1} bytes)", decompressedSize, maxDecompressedSize));
}
byte[] array = new byte[decompressedSize];
int num;
try
{
num = this.Unwrap(src, array, 0, false);
}
catch (InsufficientMemoryException)
{
throw new ZstdException("Invalid decompressed size");
}
if ((int)decompressedSize != num)
{
throw new ZstdException("Invalid decompressed size specified in the data");
}
return(array);
}
/// <summary>
/// 开始解压缩
/// </summary>
/// <param name="localFilePath"></param>
/// <param name="buffer"></param>
private void BeginDecompressExtract(string localFilePath, byte[] buffer)
{
try
{
using (var decompressor = new ZstdNet.Decompressor())
{
var path = localFilePath;
var bytes = decompressor.Unwrap(buffer);
if (File.Exists(path))
{
File.Delete(path);
}
File.WriteAllBytes(path, bytes);
//下载文件中的MD5=未压缩时文件的MD5
DownloadFileMD5 = MD5.ComputeHashString(bytes);
}
}
catch (Exception e)
{
NotiData data = new NotiData(NotiConst.DOWNLOAD_EXTRACT_FAILED, this.FileName, e.Message);
if (File.Exists(localFilePath))
{
File.Delete(localFilePath);
}
if (OnComplete != null)
{
OnComplete(data); //回调逻辑层
}
}
}
public void ExecuteThreadedWork()
{
SubFileMD5Dic = new Dictionary <string, string>();
try
{
FileMD5 = MD5.ComputeHashString(FileBytes);
using (var decompressor = new ZstdNet.Decompressor())
{
#if UNITY_IOS
FileBytes = Crypto.Decode(FileBytes);
#endif
using (var ms = new MemoryStream(decompressor.Unwrap(FileBytes)))
{
using (var reader = new BinaryReader(ms))
{
while (reader.BaseStream.Position != reader.BaseStream.Length)
{
string abName = reader.ReadString();
int length = reader.ReadInt32();
var path = LocalPath + abName;
string dir = Path.GetDirectoryName(path);
if (!Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
var bytes = reader.ReadBytes(length);
if (File.Exists(path))
{
File.Delete(path);
}
File.WriteAllBytes(path, bytes);
SubFileMD5Dic[abName] = MD5.ComputeHashString(bytes);
}
}
}
}
}
catch (Exception e)
{
var data = new NotiData(NotiConst.UPDATE_EXTRACT_FAILED, FileName, e.Message);
if (OnComplete != null)
{
OnComplete(data); //回调逻辑层
}
}
FileBytes = null;
}
// Token: 0x0600001F RID: 31 RVA: 0x00002554 File Offset: 0x00000754
public static ulong GetDecompressedSize(byte[] src)
{
return(Decompressor.GetDecompressedSize(new ArraySegment <byte>(src)));
}
