public HResult GetPlaceholderInfoCallback(
int commandId,
string relativePath,
uint triggeringProcessId,
string triggeringProcessImageFileName)
{
Console.WriteLine($"GetPlaceholderInfoCallback: `{relativePath}`");
ProjectedFileInfo fileInfo = this.GetFileInfo(relativePath);
if (fileInfo == null)
{
return(HResult.FileNotFound);
}
DateTime now = DateTime.UtcNow;
HResult result = this.virtualizationInstance.WritePlaceholderInfo(
Path.Combine(Path.GetDirectoryName(relativePath), fileInfo.Name),
creationTime: now,
lastAccessTime: now,
lastWriteTime: now,
changeTime: now,
fileAttributes: fileInfo.IsDirectory ? FileAttributes.Directory : FileAttributes.Archive,
endOfFile: fileInfo.Size,
isDirectory: fileInfo.IsDirectory,
contentId: new byte[] { 0 },
providerId: new byte[] { 1 });
if (result != HResult.Ok)
{
Console.WriteLine("WritePlaceholderInformation failed: " + result);
}
return(result);
}
// Combination of the logic in List<T>.Enumerator MoveNext() and MoveNextRare()
// https://github.com/dotnet/corefx/blob/b492409b4a1952cda4b078f800499d382e1765fc/src/Common/src/CoreLib/System/Collections/Generic/List.cs#L1137
// (No need to check list._version as GVFS does not modify the lists used for enumeration)
public bool MoveNext()
{
if (this.index < this.list.Count)
{
this.Current = this.list[this.index];
this.index++;
return(true);
}
this.index = this.list.Count + 1;
this.Current = null;
return(false);
}
private HResult GetDirectoryEnumeration(
Guid enumerationId,
string filterFileName,
bool restartScan,
DirectoryEnumerationResults results)
{
Console.WriteLine($"GetDiretoryEnumeration: {enumerationId}, {filterFileName}");
try
{
ActiveEnumeration activeEnumeration = null;
if (!this.activeEnumerations.TryGetValue(enumerationId, out activeEnumeration))
{
return(HResult.InternalError);
}
if (restartScan)
{
activeEnumeration.RestartEnumeration(filterFileName);
}
else
{
activeEnumeration.TrySaveFilterString(filterFileName);
}
bool entryAdded = false;
HResult result = HResult.Ok;
while (activeEnumeration.IsCurrentValid)
{
ProjectedFileInfo fileInfo = activeEnumeration.Current;
DateTime now = DateTime.UtcNow;
result = results.Add(
fileName: fileInfo.Name,
fileSize: (ulong)(fileInfo.IsDirectory ? 0 : fileInfo.Size),
isDirectory: fileInfo.IsDirectory,
fileAttributes: fileInfo.IsDirectory ? (uint)FileAttributes.Directory : (uint)FileAttributes.Archive,
creationTime: now,
lastAccessTime: now,
lastWriteTime: now,
changeTime: now);
if (result == HResult.Ok)
{
entryAdded = true;
activeEnumeration.MoveNext();
}
else
{
if (result == HResult.InsufficientBuffer)
{
if (entryAdded)
{
result = HResult.Ok;
}
}
break;
}
}
return(result);
}
catch (Win32Exception e)
{
return(HResultFromWin32(e.NativeErrorCode));
}
catch (Exception)
{
return(HResult.InternalError);
}
}
public void Reset()
{
this.index = 0;
this.Current = null;
}