internal FileSystemEnumerableIterator(string path, string originalUserPath, string searchPattern, SearchOption searchOption, SearchResultHandler <TSource> resultHandler)
{
this.oldMode = Win32Native.SetErrorMode(1);
this.searchStack = new List <Directory.SearchData>();
string str = FileSystemEnumerableIterator <TSource> .NormalizeSearchPattern(searchPattern);
if (str.Length == 0)
{
this.empty = true;
}
else
{
this._resultHandler = resultHandler;
this.searchOption = searchOption;
this.fullPath = Path.GetFullPathInternal(path);
string fullSearchString = FileSystemEnumerableIterator <TSource> .GetFullSearchString(this.fullPath, str);
this.normalizedSearchPath = Path.GetDirectoryName(fullSearchString);
string[] pathList = new string[] { Directory.GetDemandDir(this.fullPath, true), Directory.GetDemandDir(this.normalizedSearchPath, true) };
new FileIOPermission(FileIOPermissionAccess.PathDiscovery, pathList, false, false).Demand();
this.searchCriteria = FileSystemEnumerableIterator <TSource> .GetNormalizedSearchCriteria(fullSearchString, this.normalizedSearchPath);
string directoryName = Path.GetDirectoryName(str);
string str4 = originalUserPath;
if ((directoryName != null) && (directoryName.Length != 0))
{
str4 = Path.Combine(str4, directoryName);
}
this.userPath = str4;
this.searchData = new Directory.SearchData(this.normalizedSearchPath, this.userPath, searchOption);
this.CommonInit();
}
}
internal FileSystemEnumerableIterator(string path, string originalUserPath, string searchPattern, SearchOption searchOption, SearchResultHandler <TSource> resultHandler, bool checkHost)
{
this.oldMode = Win32Native.SetErrorMode(1);
this.searchStack = new List <Directory.SearchData>();
string text = FileSystemEnumerableIterator <TSource> .NormalizeSearchPattern(searchPattern);
if (text.Length == 0)
{
this.empty = true;
return;
}
this._resultHandler = resultHandler;
this.searchOption = searchOption;
this.fullPath = Path.GetFullPathInternal(path);
string fullSearchString = FileSystemEnumerableIterator <TSource> .GetFullSearchString(this.fullPath, text);
this.normalizedSearchPath = Path.GetDirectoryName(fullSearchString);
if (CodeAccessSecurityEngine.QuickCheckForAllDemands())
{
FileIOPermission.EmulateFileIOPermissionChecks(this.fullPath);
FileIOPermission.EmulateFileIOPermissionChecks(this.normalizedSearchPath);
}
else
{
new FileIOPermission(FileIOPermissionAccess.PathDiscovery, new string[]
{
Directory.GetDemandDir(this.fullPath, true),
Directory.GetDemandDir(this.normalizedSearchPath, true)
}, false, false).Demand();
}
this._checkHost = checkHost;
this.searchCriteria = FileSystemEnumerableIterator <TSource> .GetNormalizedSearchCriteria(fullSearchString, this.normalizedSearchPath);
string directoryName = Path.GetDirectoryName(text);
string path2 = originalUserPath;
if (directoryName != null && directoryName.Length != 0)
{
path2 = Path.CombineNoChecks(path2, directoryName);
}
this.userPath = path2;
this.searchData = new Directory.SearchData(this.normalizedSearchPath, this.userPath, searchOption);
this.CommonInit();
}
public override bool MoveNext()
{
Win32Native.WIN32_FIND_DATA data = new Win32Native.WIN32_FIND_DATA();
switch (base.state)
{
case 1:
if (!this.empty)
{
if (this.searchData.searchOption == SearchOption.TopDirectoryOnly)
{
base.state = 3;
if (base.current != null)
{
return(true);
}
goto Label_017A;
}
base.state = 2;
break;
}
base.state = 4;
goto Label_0250;
case 2:
break;
case 3:
goto Label_017A;
case 4:
goto Label_0250;
default:
goto Label_0256;
}
Label_015D:
while (this.searchStack.Count > 0)
{
this.searchData = this.searchStack[0];
this.searchStack.RemoveAt(0);
this.AddSearchableDirsToStack(this.searchData);
string fileName = this.searchData.fullPath + this.searchCriteria;
this._hnd = Win32Native.FindFirstFile(fileName, data);
if (this._hnd.IsInvalid)
{
int hr = Marshal.GetLastWin32Error();
switch (hr)
{
case 2:
case 0x12:
case 3:
{
continue;
}
}
this._hnd.Dispose();
this.HandleError(hr, this.searchData.fullPath);
}
base.state = 3;
this.needsParentPathDiscoveryDemand = true;
SearchResult result = this.CreateSearchResult(this.searchData, data);
if (!this._resultHandler.IsResultIncluded(result))
{
goto Label_017A;
}
if (this.needsParentPathDiscoveryDemand)
{
FileSystemEnumerableIterator <TSource> .DoDemand(this.searchData.fullPath);
this.needsParentPathDiscoveryDemand = false;
}
base.current = this._resultHandler.CreateObject(result);
return(true);
}
base.state = 4;
goto Label_0250;
Label_017A:
if ((this.searchData != null) && (this._hnd != null))
{
while (Win32Native.FindNextFile(this._hnd, data))
{
SearchResult result2 = this.CreateSearchResult(this.searchData, data);
if (this._resultHandler.IsResultIncluded(result2))
{
if (this.needsParentPathDiscoveryDemand)
{
FileSystemEnumerableIterator <TSource> .DoDemand(this.searchData.fullPath);
this.needsParentPathDiscoveryDemand = false;
}
base.current = this._resultHandler.CreateObject(result2);
return(true);
}
}
int num2 = Marshal.GetLastWin32Error();
if (this._hnd != null)
{
this._hnd.Dispose();
}
if (((num2 != 0) && (num2 != 0x12)) && (num2 != 2))
{
this.HandleError(num2, this.searchData.fullPath);
}
}
if (this.searchData.searchOption == SearchOption.TopDirectoryOnly)
{
base.state = 4;
}
else
{
base.state = 2;
goto Label_015D;
}
Label_0250:
base.Dispose();
Label_0256:
return(false);
}
