private async Task UploadBlockAndIndexAsync(VolumeUploadRequest upload, Worker worker, CancellationToken cancelToken)
{
var blockUploaded = await UploadFileAsync(upload.BlockEntry, worker, cancelToken).ConfigureAwait(false);
if (blockUploaded && await UploadFileAsync(upload.IndexEntry, worker, cancelToken).ConfigureAwait(false))
{
await m_database.AddIndexBlockLinkAsync(upload.IndexVolume.VolumeID, upload.BlockVolume.VolumeID).ConfigureAwait(false);
}
}
private async Task UploadBlockAndIndexAsync(VolumeUploadRequest upload, Worker worker, CancellationToken cancelToken)
{
if (await UploadFileAsync(upload.BlockEntry, worker, cancelToken).ConfigureAwait(false))
{
// We must use the BlockEntry's RemoteFilename and not the BlockVolume's since the
// BlockEntry's' RemoteFilename reflects renamed files due to retries after errors.
IndexVolumeWriter indexVolumeWriter = await upload.IndexVolume.CreateVolume(upload.BlockEntry.RemoteFilename, upload.BlockEntry.Hash, upload.BlockEntry.Size, upload.Options, upload.Database);
FileEntryItem indexEntry = indexVolumeWriter.CreateFileEntryForUpload(upload.Options);
if (await UploadFileAsync(indexEntry, worker, cancelToken).ConfigureAwait(false))
{
await m_database.AddIndexBlockLinkAsync(indexVolumeWriter.VolumeID, upload.BlockVolume.VolumeID).ConfigureAwait(false);
}
}
}
private static async Task UploadVolumeAndIndex(SpillVolumeRequest target, IWriteChannel <IUploadRequest> outputChannel, Options options, BackupDatabase database)
{
var blockEntry = target.BlockVolume.CreateFileEntryForUpload(options);
TemporaryIndexVolume indexVolumeCopy = null;
if (target.IndexVolume != null)
{
indexVolumeCopy = new TemporaryIndexVolume(options);
target.IndexVolume.CopyTo(indexVolumeCopy, false);
}
var uploadRequest = new VolumeUploadRequest(target.BlockVolume, blockEntry, indexVolumeCopy, options, database);
await outputChannel.WriteAsync(uploadRequest).ConfigureAwait(false);
}
private static async Task UploadVolumeAndIndex(SpillVolumeRequest target, IWriteChannel <IUploadRequest> outputChannel, Options options, BackupDatabase database)
{
var blockEntry = CreateFileEntryForUpload(target.BlockVolume, options);
IndexVolumeWriter indexVolume = null;
FileEntryItem indexEntry = null;
if (target.IndexVolume != null)
{
indexVolume = await target.IndexVolume.CreateVolume(target.BlockVolume.RemoteFilename, blockEntry.Hash, blockEntry.Size, options, database).ConfigureAwait(false);
indexEntry = CreateFileEntryForUpload(indexVolume, options);
}
var uploadRequest = new VolumeUploadRequest(target.BlockVolume, blockEntry, indexVolume, indexEntry);
await outputChannel.WriteAsync(uploadRequest).ConfigureAwait(false);
}
public static Task Run(BackupDatabase database, Options options, ITaskReader taskreader)
{
return(AutomationExtensions.RunTask(
new
{
Input = Channels.OutputBlocks.ForRead,
Output = Channels.BackendRequest.ForWrite,
SpillPickup = Channels.SpillPickup.ForWrite,
},
async self =>
{
var noIndexFiles = options.IndexfilePolicy == Options.IndexFileStrategy.None;
var fullIndexFiles = options.IndexfilePolicy == Options.IndexFileStrategy.Full;
BlockVolumeWriter blockvolume = null;
TemporaryIndexVolume indexvolume = null;
try
{
while (true)
{
var b = await self.Input.ReadAsync();
// Lazy-start a new block volume
if (blockvolume == null)
{
// Before we start a new volume, probe to see if it exists
// This will delay creation of volumes for differential backups
// There can be a race, such that two workers determine that
// the block is missing, but this will be solved by the AddBlock call
// which runs atomically
if (await database.FindBlockIDAsync(b.HashKey, b.Size) >= 0)
{
b.TaskCompletion.TrySetResult(false);
continue;
}
blockvolume = new BlockVolumeWriter(options);
blockvolume.VolumeID = await database.RegisterRemoteVolumeAsync(blockvolume.RemoteFilename, RemoteVolumeType.Blocks, RemoteVolumeState.Temporary);
indexvolume = noIndexFiles ? null : new TemporaryIndexVolume(options);
}
var newBlock = await database.AddBlockAsync(b.HashKey, b.Size, blockvolume.VolumeID);
b.TaskCompletion.TrySetResult(newBlock);
if (newBlock)
{
blockvolume.AddBlock(b.HashKey, b.Data, b.Offset, (int)b.Size, b.Hint);
if (indexvolume != null)
{
indexvolume.AddBlock(b.HashKey, b.Size);
if (b.IsBlocklistHashes && fullIndexFiles)
{
indexvolume.AddBlockListHash(b.HashKey, b.Size, b.Data);
}
}
// If the volume is full, send to upload
if (blockvolume.Filesize > options.VolumeSize - options.Blocksize)
{
//When uploading a new volume, we register the volumes and then flush the transaction
// this ensures that the local database and remote storage are as closely related as possible
await database.UpdateRemoteVolumeAsync(blockvolume.RemoteFilename, RemoteVolumeState.Uploading, -1, null);
blockvolume.Close();
await database.CommitTransactionAsync("CommitAddBlockToOutputFlush");
FileEntryItem blockEntry = blockvolume.CreateFileEntryForUpload(options);
TemporaryIndexVolume indexVolumeCopy = null;
if (indexvolume != null)
{
indexVolumeCopy = new TemporaryIndexVolume(options);
indexvolume.CopyTo(indexVolumeCopy, false);
}
var uploadRequest = new VolumeUploadRequest(blockvolume, blockEntry, indexVolumeCopy, options, database);
blockvolume = null;
indexvolume = null;
// Write to output at the end here to prevent sending a full volume to the SpillCollector
await self.Output.WriteAsync(uploadRequest);
}
}
// We ignore the stop signal, but not the pause and terminate
await taskreader.ProgressAsync;
}
}
catch (Exception ex)
{
if (ex.IsRetiredException())
{
// If we have collected data, merge all pending volumes into a single volume
if (blockvolume != null && blockvolume.SourceSize > 0)
{
await self.SpillPickup.WriteAsync(new SpillVolumeRequest(blockvolume, indexvolume));
}
}
throw;
}
}));
}
public static Task Run(Options options, BackupDatabase database, ITaskReader taskreader)
{
return(AutomationExtensions.RunTask(
new
{
Input = Channels.SpillPickup.ForRead,
Output = Channels.BackendRequest.ForWrite,
},
async self =>
{
var lst = new List <VolumeUploadRequest>();
while (!await self.Input.IsRetiredAsync)
{
try
{
lst.Add((VolumeUploadRequest)await self.Input.ReadAsync());
}
catch (Exception ex)
{
if (ex.IsRetiredException())
{
break;
}
throw;
}
}
while (lst.Count > 1)
{
// We ignore the stop signal, but not the pause and terminate
await taskreader.ProgressAsync;
VolumeUploadRequest target = null;
var source = lst[0];
// Finalize the current work
source.BlockVolume.Close();
// Remove it from the list of active operations
lst.RemoveAt(0);
var buffer = new byte[options.Blocksize];
using (var rd = new BlockVolumeReader(options.CompressionModule, source.BlockVolume.LocalFilename, options))
{
foreach (var file in rd.Blocks)
{
// Grab a target
if (target == null)
{
if (lst.Count == 0)
{
// No more targets, make one
target = new VolumeUploadRequest(new BlockVolumeWriter(options), source.IndexVolume == null ? null : new TemporaryIndexVolume(options));
target.BlockVolume.VolumeID = await database.RegisterRemoteVolumeAsync(target.BlockVolume.RemoteFilename, RemoteVolumeType.Blocks, RemoteVolumeState.Temporary);
}
else
{
// Grab the next target
target = lst[0];
lst.RemoveAt(0);
}
// We copy all the blocklisthashes, which may create duplicates
// but otherwise we need to query all hashes to see if they are blocklisthashes
if (source.IndexVolume != null)
{
source.IndexVolume.CopyTo(target.IndexVolume, true);
}
}
var len = rd.ReadBlock(file.Key, buffer);
target.BlockVolume.AddBlock(file.Key, buffer, 0, len, Duplicati.Library.Interface.CompressionHint.Default);
await database.MoveBlockToVolumeAsync(file.Key, len, source.BlockVolume.VolumeID, target.BlockVolume.VolumeID);
if (target.IndexVolume != null)
{
target.IndexVolume.AddBlock(file.Key, len);
}
if (target.BlockVolume.Filesize > options.VolumeSize - options.Blocksize)
{
target.BlockVolume.Close();
await self.Output.WriteAsync(target);
target = null;
}
}
}
// Make sure they are out of the database
System.IO.File.Delete(source.BlockVolume.LocalFilename);
await database.SafeDeleteRemoteVolumeAsync(source.BlockVolume.RemoteFilename);
// Re-inject the target if it has content
if (target != null)
{
lst.Insert(lst.Count == 0 ? 0 : 1, target);
}
}
foreach (var n in lst)
{
// We ignore the stop signal, but not the pause and terminate
await taskreader.ProgressAsync;
n.BlockVolume.Close();
await self.Output.WriteAsync(n);
}
}));
}
