public override Int32 GetFileInfo(
Object FileNode,
Object FileDesc0,
out FileInfo FileInfo)
{
FileDesc FileDesc = (FileDesc)FileDesc0;
return(FileDesc.GetFileInfo(out FileInfo));
}
public override Int32 SetBasicInfo(
Object FileNode,
Object FileDesc0,
UInt32 FileAttributes,
UInt64 CreationTime,
UInt64 LastAccessTime,
UInt64 LastWriteTime,
UInt64 ChangeTime,
out FileInfo FileInfo)
{
FileDesc FileDesc = (FileDesc)FileDesc0;
FileDesc.SetBasicInfo(FileAttributes, CreationTime, LastAccessTime, LastWriteTime);
return(FileDesc.GetFileInfo(out FileInfo));
}
public override Int32 Flush(
Object FileNode,
Object FileDesc0,
out FileInfo FileInfo)
{
FileDesc FileDesc = (FileDesc)FileDesc0;
if (null == FileDesc)
{
/* we do not flush the whole volume, so just return SUCCESS */
FileInfo = default(FileInfo);
return(STATUS_SUCCESS);
}
FileDesc.Stream.Flush(true);
return(FileDesc.GetFileInfo(out FileInfo));
}
public override Int32 Open(
String FileName,
UInt32 CreateOptions,
UInt32 GrantedAccess,
out Object FileNode,
out Object FileDesc0,
out FileInfo FileInfo,
out String NormalizedName)
{
FileDesc FileDesc = null;
try
{
FileName = ConcatPath(FileName);
if (!Directory.Exists(FileName))
{
FileDesc = new FileDesc(
new FileStream(
FileName,
FileMode.Open,
(FileSystemRights)GrantedAccess,
FileShare.Read | FileShare.Write | FileShare.Delete,
4096,
0));
}
else
{
FileDesc = new FileDesc(
new DirectoryInfo(FileName));
}
FileNode = default(Object);
FileDesc0 = FileDesc;
NormalizedName = default(String);
return(FileDesc.GetFileInfo(out FileInfo));
}
catch
{
if (null != FileDesc && null != FileDesc.Stream)
{
FileDesc.Stream.Dispose();
}
throw;
}
}
public override Int32 SetFileSize(
Object FileNode,
Object FileDesc0,
UInt64 NewSize,
Boolean SetAllocationSize,
out FileInfo FileInfo)
{
FileDesc FileDesc = (FileDesc)FileDesc0;
if (!SetAllocationSize || (UInt64)FileDesc.Stream.Length > NewSize)
{
/*
* "FileInfo.FileSize > NewSize" explanation:
* Ptfs does not support allocation size. However if the new AllocationSize
* is less than the current FileSize we must truncate the file.
*/
FileDesc.Stream.SetLength((Int64)NewSize);
}
return(FileDesc.GetFileInfo(out FileInfo));
}
public override Int32 Overwrite(
Object FileNode,
Object FileDesc0,
UInt32 FileAttributes,
Boolean ReplaceFileAttributes,
UInt64 AllocationSize,
out FileInfo FileInfo)
{
FileDesc FileDesc = (FileDesc)FileDesc0;
if (ReplaceFileAttributes)
{
FileDesc.SetFileAttributes(FileAttributes);
}
else if (0 != FileAttributes)
{
FileDesc.SetFileAttributes(FileDesc.GetFileAttributes() | FileAttributes);
}
FileDesc.Stream.SetLength(0);
return(FileDesc.GetFileInfo(out FileInfo));
}
public override Int32 Write(
Object FileNode,
Object FileDesc0,
IntPtr Buffer,
UInt64 Offset,
UInt32 Length,
Boolean WriteToEndOfFile,
Boolean ConstrainedIo,
out UInt32 PBytesTransferred,
out FileInfo FileInfo)
{
FileDesc FileDesc = (FileDesc)FileDesc0;
if (ConstrainedIo)
{
if (Offset >= (UInt64)FileDesc.Stream.Length)
{
PBytesTransferred = default(UInt32);
FileInfo = default(FileInfo);
return(STATUS_SUCCESS);
}
if (Offset + Length > (UInt64)FileDesc.Stream.Length)
{
Length = (UInt32)((UInt64)FileDesc.Stream.Length - Offset);
}
}
Byte[] Bytes = new byte[Length];
Marshal.Copy(Buffer, Bytes, 0, Bytes.Length);
if (!WriteToEndOfFile)
{
FileDesc.Stream.Seek((Int64)Offset, SeekOrigin.Begin);
}
FileDesc.Stream.Write(Bytes, 0, Bytes.Length);
PBytesTransferred = (UInt32)Bytes.Length;
return(FileDesc.GetFileInfo(out FileInfo));
}
public override Int32 Create(
String FileName,
UInt32 CreateOptions,
UInt32 GrantedAccess,
UInt32 FileAttributes,
Byte[] SecurityDescriptor,
UInt64 AllocationSize,
out Object FileNode,
out Object FileDesc0,
out FileInfo FileInfo,
out String NormalizedName)
{
FileDesc FileDesc = null;
try
{
FileName = ConcatPath(FileName);
if (0 == (CreateOptions & FILE_DIRECTORY_FILE))
{
FileSecurity Security = null;
if (null != SecurityDescriptor)
{
Security = new FileSecurity();
Security.SetSecurityDescriptorBinaryForm(SecurityDescriptor);
}
FileDesc = new FileDesc(
new FileStream(
FileName,
FileMode.CreateNew,
(FileSystemRights)GrantedAccess | FileSystemRights.WriteAttributes,
FileShare.Read | FileShare.Write | FileShare.Delete,
4096,
0,
Security));
FileDesc.SetFileAttributes(FileAttributes | (UInt32)System.IO.FileAttributes.Archive);
}
else
{
if (Directory.Exists(FileName))
{
ThrowIoExceptionWithNtStatus(STATUS_OBJECT_NAME_COLLISION);
}
DirectorySecurity Security = null;
if (null != SecurityDescriptor)
{
Security = new DirectorySecurity();
Security.SetSecurityDescriptorBinaryForm(SecurityDescriptor);
}
FileDesc = new FileDesc(
Directory.CreateDirectory(FileName, Security));
FileDesc.SetFileAttributes(FileAttributes);
}
FileNode = default(Object);
FileDesc0 = FileDesc;
NormalizedName = default(String);
return(FileDesc.GetFileInfo(out FileInfo));
}
catch
{
if (null != FileDesc && null != FileDesc.Stream)
{
FileDesc.Stream.Dispose();
}
throw;
}
}