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dotnet: implement new Delete design and POSIX semantics

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This commit is contained in:
Bill Zissimopoulos
2021-10-20 12:23:14 +01:00
parent 81248f3899
commit 76bfa395a8
6 changed files with 187 additions and 54 deletions
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66
tst/memfs-dotnet/Program.cs
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@ -286,6 +286,7 @@ namespace memfs
Host.ExtendedAttributes = true;
Host.WslFeatures = true;
Host.RejectIrpPriorToTransact0 = true;
Host.SupportsPosixUnlinkRename = true;
return STATUS_SUCCESS;
}
@ -563,19 +564,6 @@ namespace memfs
AllocationUnit * AllocationUnit;
SetFileSizeInternal(FileNode, AllocationSize, true);
}
if (0 != (Flags & CleanupDelete) && !FileNodeMap.HasChild(FileNode))
{
List<String> StreamFileNames = new List<String>(FileNodeMap.GetStreamFileNames(FileNode));
foreach (String StreamFileName in StreamFileNames)
{
FileNode StreamNode = FileNodeMap.Get(StreamFileName);
if (null == StreamNode)
continue; /* should not happen */
FileNodeMap.Remove(StreamNode);
}
FileNodeMap.Remove(FileNode);
}
}
public override void Close(
@ -920,19 +908,6 @@ namespace memfs
return STATUS_SUCCESS;
}
public override Int32 CanDelete(
Object FileNode0,
Object FileDesc,
String FileName)
{
FileNode FileNode = (FileNode)FileNode0;
if (FileNodeMap.HasChild(FileNode))
return STATUS_DIRECTORY_NOT_EMPTY;
return STATUS_SUCCESS;
}
public override Int32 Rename(
Object FileNode0,
Object FileDesc,
@ -1330,6 +1305,45 @@ namespace memfs
FileNode.FileInfo.EaSize = FileNode.FileInfo.EaSize + EaSizePlus - EaSizeMinus;
return STATUS_SUCCESS;
}
public override Int32 Delete(
Object FileNode0,
Object FileDesc,
String FileName,
UInt32 Flags)
{
FileNode FileNode = (FileNode)FileNode0;
switch (Flags)
{
case FILE_DISPOSITION_DO_NOT_DELETE:
return STATUS_SUCCESS;
case FILE_DISPOSITION_DELETE:
if (FileNodeMap.HasChild(FileNode))
return STATUS_DIRECTORY_NOT_EMPTY;
return STATUS_SUCCESS;
case FILE_DISPOSITION_DELETE | FILE_DISPOSITION_POSIX_SEMANTICS:
case ~(UInt32)0:
if (FileNodeMap.HasChild(FileNode))
return STATUS_DIRECTORY_NOT_EMPTY;
List<String> StreamFileNames = new List<String>(FileNodeMap.GetStreamFileNames(FileNode));
foreach (String StreamFileName in StreamFileNames)
{
FileNode StreamNode = FileNodeMap.Get(StreamFileName);
if (null == StreamNode)
continue; /* should not happen */
FileNodeMap.Remove(StreamNode);
}
FileNodeMap.Remove(FileNode);
return STATUS_SUCCESS;
default:
return STATUS_INVALID_PARAMETER;
}
}
private FileNodeMap FileNodeMap;
private UInt32 MaxFileNodes;