protected override void Dispose(bool disposing)
{
if (!PreventUploadComplete)
{
base.Dispose(disposing);
FileHash = IOExtensions.GetAsHex(md5Hasher.TransformFinalBlock());
md5Hasher.Dispose();
}
}
public async Task Execute()
{
while (true)
{
var read = await inputStream.ReadAsync(buffer).ConfigureAwait(false);
TotalSizeRead += read;
if (read == 0) // nothing left to read
{
FileHash = IOExtensions.GetAsHex(md5Hasher.TransformFinalBlock());
headers["Content-MD5"] = FileHash;
storage.Batch(accessor =>
{
accessor.CompleteFileUpload(filename);
putTriggers.Apply(trigger => trigger.AfterUpload(filename, headers));
});
return; // task is done
}
int retries = 50;
bool shouldRetry;
do
{
try
{
storage.Batch(accessor =>
{
var hashKey = accessor.InsertPage(buffer, read);
accessor.AssociatePage(filename, hashKey, pos, read);
putTriggers.Apply(trigger => trigger.OnUpload(filename, headers, hashKey, pos, read));
});
shouldRetry = false;
}
catch (ConcurrencyException)
{
if (retries-- > 0)
{
shouldRetry = true;
Thread.Sleep(50);
continue;
}
throw;
}
} while (shouldRetry);
md5Hasher.TransformBlock(buffer, 0, read);
pos++;
}
}
