public override int Flush(object fileNode, object fileDesc, out FileInfo fileInfo)
{
Logger.LogTrace($"{nameof ( Flush )} {( fileDesc as FileMetadata ) ? . Name}");
if (fileNode is FileNode node)
{
OnetimeTask flushTask = new OnetimeTask(node.Flush, default);
TaskDispatcher.Dispatch(flushTask);
}
FlushMetadata( );
if (fileDesc is FileMetadata metadata)
{
fileInfo = metadata.FileInfo;
}
else
{
throw GetIoExceptionWithNtStatus(STATUS_INVALID_HANDLE);
}
return(STATUS_SUCCESS);
}
public override int Init(object host)
{
Logger.LogTrace($"{nameof ( Init )}");
Current = this;
UpdateQuota( );
FileMetadata rootDirectoryMetadata;
lock ( DataContext )
{
rootDirectoryMetadata =
DataContext.FileMetadata.SingleOrDefault(
metadata
=> metadata.Name == "\\");
}
if (rootDirectoryMetadata == null)
{
rootDirectoryMetadata = CreateDirectory(
"\\",
securityDescriptor : DefaultSecurity.
RootSecurity);
}
if (host is FileSystemHost fileSystemHost)
{
fileSystemHost.SectorSize = 4096;
fileSystemHost.SectorsPerAllocationUnit = 1;
fileSystemHost.MaxComponentLength = 255;
fileSystemHost.FileInfoTimeout = 100000;
fileSystemHost.CaseSensitiveSearch = true;
fileSystemHost.CasePreservedNames = true;
fileSystemHost.UnicodeOnDisk = true;
fileSystemHost.PersistentAcls = true;
fileSystemHost.PostCleanupWhenModifiedOnly = true;
fileSystemHost.PassQueryDirectoryPattern = true;
fileSystemHost.FlushAndPurgeOnCleanup = true;
fileSystemHost.VolumeCreationTime =
rootDirectoryMetadata.CreationTime;
fileSystemHost.VolumeSerialNumber = 0;
fileSystemHost.FileSystemName = nameof(CloudFileSystem);
}
Logger.LogInformation($"Filesystem Initialized.");
IntervalTask updateQuotaTask = new IntervalTask(
UpdateQuota,
TimeSpan.FromMinutes(2),
priority: TaskPriority.
Background);
IntervalTask flushMetadataTask = new IntervalTask(
FlushMetadata,
TimeSpan.FromSeconds(20),
priority: TaskPriority.Low);
TaskDispatcher.Dispatch(updateQuotaTask);
TaskDispatcher.Dispatch(flushMetadataTask);
return(STATUS_SUCCESS);
}
