|
private WriteBytes ( long offset, int bytesRead, byte bytesToRead, Microsoft.WindowsAzure.Storage.Blob.CloudBlockBlob blob, ConcurrentBag |
||
| offset | long | |
| bytesRead | int | |
| bytesToRead | byte | |
| blob | Microsoft.WindowsAzure.Storage.Blob.CloudBlockBlob | |
| uploadedBlockList | ConcurrentBag |
|
| testMode | bool | |
| return | System.Threading.Tasks.Task | |
private Task WriteBytes(long offset, int bytesRead, byte[] bytesToRead, CloudBlockBlob blob, ConcurrentBag<UploadedBlock> uploadedBlockList, bool testMode)
{
var t = Task.Factory.StartNew(() =>
{
var sig = CommonOps.GenerateBlockSig(bytesToRead, offset, (int)bytesRead, 0);
var blockId = Convert.ToBase64String(sig.MD5Signature);
bool isDupe = false;
lock (parallelLock)
{
isDupe = uploadedBlockList.Any(ub => ub.BlockId == blockId);
// store the block id that is associated with this byte range.
uploadedBlockList.Add(new UploadedBlock()
{
BlockId = blockId,
Offset = offset,
Sig = sig,
Size = bytesRead,
IsNew = true,
IsDuplicate = isDupe
});
}
if (!testMode)
{
if (!isDupe)
{
// yes, putting into memory stream is probably a waste here.
using (var ms = new MemoryStream(bytesToRead))
{
var options = new BlobRequestOptions() { ServerTimeout = new TimeSpan(0, 90, 0) };
blob.PutBlock(blockId, ms, null, null, options);
}
}
}
});
return t;
}
