protected string CalculateHash(long count)
{
using (var fileStream = File.OpenRead())
{
do
{
var buffer = new byte[65536];
if (count < buffer.Length)
{
buffer = new byte[count];
}
var bytesRead = fileStream.Read(buffer, 0, buffer.Length);
if (bytesRead > 0)
{
HashProvider.Append(buffer, 0, buffer.Length);
}
count -= bytesRead;
} while (count > 0);
}
return(HashProvider.GetComputedHashAsString());
}
protected async Task <string> CalculateHashAsync(long count)
{
var localHash = MD5HashProviderFactory.GetHashProvider().CreateHash();
var buffer = new byte[Configuration.BufferSize];
do
{
var bytesToRead = count < Configuration.BufferSize ? (int)count : Configuration.BufferSize;
var bytesRead = await FileStream.ReadAsync(buffer, 0, bytesToRead);
if (bytesRead > 0)
{
localHash.Append(buffer, 0, bytesToRead);
HashProvider.Append(buffer, 0, bytesToRead);
}
count -= bytesRead;
} while (count > 0);
localHash.Finalize(new byte[1], 0, 0);
FileStream.Seek(0, SeekOrigin.Begin);
return(localHash.GetComputedHashAsString());
}
protected async Task <string> CalculateHashAsync(long count)
{
var localHash = MD5HashProviderFactory.GetHashProvider().CreateHash();
using (var fileStream = await File.OpenReadAsync())
{
var buffer = new byte[DefaultBufferLength];
do
{
var bytesToRead = count < DefaultBufferLength ? (int)count : DefaultBufferLength;
var bytesRead = fileStream.Read(buffer, 0, bytesToRead);
if (bytesRead > 0)
{
localHash.Append(buffer, 0, bytesToRead);
HashProvider.Append(buffer, 0, bytesToRead);
}
count -= bytesRead;
} while (count > 0);
}
localHash.Finalize(new byte[1], 0, 0);
return(localHash.GetComputedHashAsString());
}
protected string CalculateHash(long count)
{
do
{
var buffer = new byte[Configuration.BufferSize];
if (count < buffer.Length)
{
buffer = new byte[count];
}
var bytesRead = FileStream.Read(buffer, 0, buffer.Length);
if (bytesRead > 0)
{
HashProvider.Append(buffer, 0, buffer.Length);
}
count -= bytesRead;
} while (count > 0);
FileStream.Seek(0, SeekOrigin.Begin);
return(HashProvider.GetComputedHashAsString());
}
