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add periodic file scanner, parallelize downloads, fix transient files being readded when not necessary, fix disposal of players on plugin shutdown

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This commit is contained in:
Stanley Dimant
2022-09-25 14:38:06 +02:00
parent 25e87e6ec2
commit 0d7e173a97
20 changed files with 641 additions and 525 deletions
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54
MareSynchronos/WebAPI/ApIController.Functions.Files.cs
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@@ -5,7 +5,6 @@ using System.Linq;
using System.Net;
using System.Runtime.CompilerServices;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;
using LZ4;
@@ -59,7 +58,13 @@ namespace MareSynchronos.WebAPI
string fileName = Path.GetTempFileName();
await wc.DownloadFileTaskAsync(downloadUri, fileName);
ct.Register(wc.CancelAsync);
try
{
await wc.DownloadFileTaskAsync(downloadUri, fileName);
}
catch { }
CurrentDownloads[downloadId].Single(f => f.Hash == hash).Transferred = CurrentDownloads[downloadId].Single(f => f.Hash == hash).Total;
@@ -71,6 +76,7 @@ namespace MareSynchronos.WebAPI
public async Task DownloadFiles(int currentDownloadId, List<FileReplacementDto> fileReplacementDto, CancellationToken ct)
{
DownloadStarted?.Invoke();
Logger.Debug("Downloading files (Download ID " + currentDownloadId + ")");
List<DownloadFileDto> downloadFileInfoFromService = new List<DownloadFileDto>();
@@ -89,23 +95,29 @@ namespace MareSynchronos.WebAPI
}
}
foreach (var file in CurrentDownloads[currentDownloadId].Where(f => f.CanBeTransferred))
await Parallel.ForEachAsync(CurrentDownloads[currentDownloadId].Where(f => f.CanBeTransferred), new ParallelOptions()
{
MaxDegreeOfParallelism = 5,
CancellationToken = ct
},
async (file, token) =>
{
var hash = file.Hash;
var tempFile = await DownloadFile(currentDownloadId, file.Hash, file.DownloadUri, ct);
if (ct.IsCancellationRequested)
var tempFile = await DownloadFile(currentDownloadId, file.Hash, file.DownloadUri, token);
if (token.IsCancellationRequested)
{
File.Delete(tempFile);
Logger.Debug("Detected cancellation, removing " + currentDownloadId);
DownloadFinished?.Invoke();
CancelDownload(currentDownloadId);
break;
return;
}
var tempFileData = await File.ReadAllBytesAsync(tempFile, ct);
var tempFileData = await File.ReadAllBytesAsync(tempFile, token);
var extractedFile = LZ4Codec.Unwrap(tempFileData);
File.Delete(tempFile);
var filePath = Path.Combine(_pluginConfiguration.CacheFolder, file.Hash);
await File.WriteAllBytesAsync(filePath, extractedFile, ct);
await File.WriteAllBytesAsync(filePath, extractedFile, token);
var fi = new FileInfo(filePath);
Func<DateTime> RandomDayFunc()
{
@@ -118,26 +130,20 @@ namespace MareSynchronos.WebAPI
fi.CreationTime = RandomDayFunc().Invoke();
fi.LastAccessTime = RandomDayFunc().Invoke();
fi.LastWriteTime = RandomDayFunc().Invoke();
}
var allFilesInDb = false;
while (!allFilesInDb && !ct.IsCancellationRequested)
{
await using (var db = new FileCacheContext())
try
{
var fileCount = CurrentDownloads[currentDownloadId]
.Where(c => c.CanBeTransferred)
.Count(h => db.FileCaches.Any(f => f.Hash == h.Hash));
var totalFiles = CurrentDownloads[currentDownloadId].Count(c => c.CanBeTransferred);
Logger.Debug("Waiting for files to be in the DB, added " + fileCount + " of " + totalFiles);
allFilesInDb = fileCount == totalFiles;
_ = _fileDbManager.CreateFileCacheEntity(filePath);
}
await Task.Delay(250, ct);
}
catch (Exception ex)
{
Logger.Warn("Issue adding file to the DB");
Logger.Warn(ex.Message);
Logger.Warn(ex.StackTrace);
}
});
Logger.Debug("Download complete, removing " + currentDownloadId);
DownloadFinished?.Invoke();
CancelDownload(currentDownloadId);
}