public static string Test06()
{
System.IO.FileMode a = System.IO.FileMode.Create;
Console.WriteLine("a=" + a);
return(a.ToString());
}
private static uint GetMode(IO.FileMode mode)
{
uint umode = 0;
switch (mode)
{
case IO.FileMode.CreateNew:
umode = PathInternal.DllImport.CREATE_NEW;
break;
case IO.FileMode.Create:
umode = PathInternal.DllImport.CREATE_ALWAYS;
break;
case IO.FileMode.Append:
umode = PathInternal.DllImport.OPEN_ALWAYS;
break;
case IO.FileMode.Open:
umode = PathInternal.DllImport.OPEN_EXISTING;
break;
case IO.FileMode.OpenOrCreate:
umode = PathInternal.DllImport.OPEN_ALWAYS;
break;
case IO.FileMode.Truncate:
umode = PathInternal.DllImport.TRUNCATE_EXISTING;
break;
}
return(umode);
}
public static IO.FileStream Open(string filepath, IO.FileMode mode, IO.FileAccess access, IO.FileShare share)
{
//opened in the specified mode , access and share
IO.FileStream fs = null;
uint umode = GetMode(mode);
uint uaccess = GetAccess(access);
uint ushare = GetShare(share);
if (mode == IO.FileMode.Append)
{
uaccess = PathInternal.DllImport.FILE_APPEND_DATA;
}
SafeFileHandle sh = PathInternal.DllImport.CreateFileW(PathInternal.ConvertToUnicodePath(filepath), uaccess, ushare, IntPtr.Zero, umode, PathInternal.DllImport.FILE_ATTRIBUTE_NORMAL, IntPtr.Zero);
int iError = Marshal.GetLastWin32Error();
if ((iError > 0 && !(mode == IO.FileMode.Append && iError != PathInternal.DllImport.ERROR_ALREADY_EXISTS)) || sh.IsInvalid)
{
throw new Exception("Error opening file Win32 Error:" + iError);
}
else
{
fs = new IO.FileStream(sh, access);
}
// if opened in append mode
if (mode == IO.FileMode.Append)
{
if (!sh.IsInvalid)
{
PathInternal.DllImport.SetFilePointer(sh, 0, IntPtr.Zero, PathInternal.DllImport.FILE_END);
}
}
return(fs);
}
/// <summary>
/// 获取附件数据流类
/// </summary>
/// <param name="attachUrl">附件路径</param>
/// <returns></returns>
public static void FileInsert(List <byte[]> fileContextList, string attachUrl)
{
if (fileContextList != null && fileContextList.Count > 0)
{
string physicalpath = Funs.RootPath;
//HttpContext.Current.Request.PhysicalApplicationPath;
string fullPath = physicalpath + attachUrl;
if (!File.Exists(fullPath))
{
byte[] fileContext = fileContextList[0];
int index = fullPath.LastIndexOf("\\");
string filePath = fullPath.Substring(0, index);
if (!Directory.Exists(filePath))
{
Directory.CreateDirectory(filePath);
}
//string savePath = fullPath + fileName;
//文件读写模式
System.IO.FileMode fileMode = System.IO.FileMode.Create;
//写入文件
using (System.IO.FileStream fs = new System.IO.FileStream(fullPath, fileMode, System.IO.FileAccess.Write))
{
fs.Write(fileContext, 0, fileContext.Length);
}
}
}
}
public static void LogError(Exception ex)
{
try {
if (logFilePath == null)
{
return;
}
// checks if the log is bigger than 1MB, and if so, overwrite it
System.IO.FileMode mode = FileMode.Append;
FileInfo info = new FileInfo(logFilePath);
if (info.Length > 900000)
{
mode = FileMode.Create;
}
System.IO.FileStream fstream = new FileStream(logFilePath, mode);
StreamWriter writer = new StreamWriter(fstream);
writer.WriteLine(DateTime.Now);
writer.WriteLine(ex.Message);
writer.WriteLine(ex.StackTrace.ToString());
writer.WriteLine("------------------------------------------------------------------------------");
writer.Close();
}
catch (Exception) { }
}
//********************************************************************************************
//
//********************************************************************************************
public static bool Serialize(T instance, string filename, System.IO.FileMode fmode, SERIALIZATION.MODE smode)
{
if (m_formatter == null)
{
return(false);
}
if (instance == null)
{
return(false);
}
if (string.IsNullOrEmpty(filename))
{
return(false);
}
Stream stream = System.IO.File.Open(filename, fmode);
bool result = Serialize(instance, stream, smode);
if (stream != null)
{
stream.Close();
}
return(result);
}
static extern SafeFileHandle CreateFile(String fileName,
int desiredAccess,
System.IO.FileShare shareMode,
IntPtr securityAttrs,
System.IO.FileMode creationDisposition,
int flagsAndAttributes,
IntPtr templateFile);
public FileStream GetFileStream(string fileName, System.IO.FileMode fileMode)
{
IsolatedStorageFile isoStore = IsolatedStorageFile.GetStore(IsolatedStorageScope.User | IsolatedStorageScope.Assembly, null, null);
IsolatedStorageFileStream isoStream = new IsolatedStorageFileStream(fileName, fileMode, isoStore);
return(isoStream);
}
public void Create(string name, byte[] data, System.IO.FileMode mode = FileMode.Create)
{
using (FileStream fs = new FileStream(working_dir + name, FileMode.Create | FileMode.Append))
{
fs.Write(data, 0, data.Length);
}
}
/// <summary>
/// Create a new filestream. Can be synced over async task (netstandard)
/// </summary>
private FileStream CreateFileStream(string path, System.IO.FileMode mode, FileAccess access, FileShare share)
{
return(System.Threading.Tasks.Task.Run(() => new FileStream(path, mode, access, share, BasePage.PAGE_SIZE))
.ConfigureAwait(false)
.GetAwaiter()
.GetResult());
}
public NTStream_(string fName, System.IO.FileMode mode)
{
fileName = fName;
if (mode == System.IO.FileMode.Open)
{
bs = new BackupFileStream(fName,
Alphaleonis.Win32.Filesystem.FileMode.Open,
/* FileSystemRights.ReadPermissions|FileSystemRights.SystemSecurity, */
FileSystemRights.ReadPermissions,
Alphaleonis.Win32.Filesystem.FileShare.ReadWrite,
Alphaleonis.Win32.Filesystem.FileOptions.SequentialScan |
Alphaleonis.Win32.Filesystem.FileOptions.BackupSemantics
/*|Alphaleonis.Win32.Filesystem.FileOptions.NoBuffering
|Alphaleonis.Win32.Filesystem.FileOptions.BackupSemantics*/
);
}
else if (mode == System.IO.FileMode.OpenOrCreate)
{
bs = new BackupFileStream(fName,
Alphaleonis.Win32.Filesystem.FileMode.OpenOrCreate, /*also use TRUNCATE??*/
FileSystemRights.AppendData | FileSystemRights.CreateFiles
| FileSystemRights.Write | FileSystemRights.SystemSecurity,
Alphaleonis.Win32.Filesystem.FileShare.Read,
Alphaleonis.Win32.Filesystem.FileOptions.SequentialScan
);
}
//bs = new BackupFileStream(fName, Alphaleonis.Win32.Filesystem.FileMode.Open);
//Console.WriteLine ("bstream length="+bs.Length);
}
public Stream OpenFileStream(string key, string filename, System.IO.FileMode mode, System.IO.FileAccess access)
{
switch (access)
{
case FileAccess.Read:
return(GetFileData(key, filename));
case FileAccess.Write:
switch (mode)
{
case FileMode.Open:
throw new FileNotFoundException();
case FileMode.Append:
throw new InvalidOperationException();
default:
var ms = new FileCacheDatabaseWriteStream();
ms.HashKey = key;
ms.Filename = filename;
ms.Cache = this;
return(ms);
}
default:
throw new InvalidOperationException();
}
throw new NotImplementedException();
}
public int CreateFile(
string filename,
System.IO.FileAccess access,
System.IO.FileShare share,
System.IO.FileMode mode,
System.IO.FileOptions options,
DokanFileInfo info)
{
Trace.WriteLine(string.Format("CreateFile {0}", filename));
if (mode == FileMode.CreateNew)
{
var blob = this.GetBlob(filename, false);
blobsWriting.TryAdd(filename, blob.OpenWrite());
return(0);
}
if (GetFileInformation(filename, new FileInformation(), new DokanFileInfo(0)) == 0)
{
return(0);
}
else
{
return(-DokanNet.ERROR_FILE_NOT_FOUND);
}
}
/// <summary>
/// Writes content to the file
/// </summary>
/// <param name="Content">Content to write</param>
/// <param name="Mode">Mode to open the file as</param>
/// <returns>The result of the write or original content</returns>
public byte[] Write(byte[] Content, System.IO.FileMode Mode = FileMode.Create)
{
if (InternalFile == null)
{
return(Content);
}
return(InternalFile.Write(Content, Mode));
}
/// <summary>
/// Writes content to the file
/// </summary>
/// <param name="Content">Content to write</param>
/// <param name="Mode">Mode to open the file as</param>
/// <param name="Encoding">Encoding to use for the content</param>
/// <returns>The result of the write or original content</returns>
public string Write(string Content, System.IO.FileMode Mode = FileMode.Create, Encoding Encoding = null)
{
if (InternalFile == null)
{
return(Content);
}
return(InternalFile.Write(Content, Mode, Encoding));
}
private static extern SafeFileHandle CreateFilePrivate(
string lpFileName,
int dwDesiredAccess,
System.IO.FileShare dwShareMode,
ref SECURITY_ATTRIBUTES securityAttrs,
System.IO.FileMode dwCreationDisposition,
int dwFlagsAndAttributes,
IntPtr hTemplateFile);
public File OpenFile(string path, FileMode mode, FileAccess access)
{
// Resolve the OpenOrCreate file mode.
if (mode == FileMode.OpenOrCreate)
{
mode = FileExists(path) ? FileMode.Open : FileMode.Create;
}
// Convert the file mode and access to the System.IO types.
IO.FileMode fileMode = ConvertMode(mode);
IO.FileAccess fileAccess = ConvertAccess(access);
// Attempt to open the stream.
IO.Stream stream;
try
{
stream = new IO.FileStream(path, fileMode, fileAccess);
}
catch (NotSupportedException)
{
throw new IOException("Path refers to a non-file device");
}
catch (IO.FileNotFoundException)
{
throw new FileNotFoundException("File not found");
}
catch (IO.DirectoryNotFoundException)
{
throw new DirectoryNotFoundException("Invalid path");
}
catch (IO.IOException)
{
throw new IOException("Generic IO exception");
}
catch (System.Security.SecurityException)
{
throw new SecurityException("No permission");
}
catch (UnauthorizedAccessException)
{
throw new SecurityException("Requested access denied");
}
// Build the file info.
FileInfo fileInfo;
if (mode == FileMode.Open || (mode == FileMode.Append && FileExists(path)))
{
fileInfo = GetFileInfo(path);
}
else
{
fileInfo = CreateFileInfo(path);
}
return(new File(fileInfo, stream));
}
public IOStream(string[] filePaths, System.IO.FileMode mode)
: base()
{
Streams = new FileStream[filePaths.Length];
for (int i = 0; i < Streams.Length; i++)
{
Streams[i] = new FileStream(filePaths[i], mode);
}
}
public Stream OpenFile(string filePath, System.IO.FileMode fileMode)
{
if (filePath == null || filePath.Trim().Length == 0)
{
throw new ArgumentNullException("File path arguments are invalid.");
}
return(new FileStream(Path.Combine(_path, filePath), fileMode, System.IO.FileAccess.ReadWrite, System.IO.FileShare.Read));
}
/// <summary>
/// Not used
/// </summary>
/// <param name="Content">Not used</param>
/// <param name="Mode">Not used</param>
/// <returns>The result of the write or original content</returns>
public override byte[] Write(byte[] Content, System.IO.FileMode Mode = FileMode.Create)
{
var Request = WebRequest.Create(InternalFile) as FtpWebRequest;
Request.Method = WebRequestMethods.Ftp.UploadFile;
SetupData(Request, Content);
SetupCredentials(Request);
return(SendRequest(Request).ToByteArray());
}
/// <summary>
/// Constructor
/// </summary>
public CaptureFileWriterDevice(string captureFilename, System.IO.FileMode mode = FileMode.OpenOrCreate)
{
m_pcapFile = captureFilename;
// append isn't possible without some difficulty and not implemented yet
if (mode == FileMode.Append)
{
throw new InvalidOperationException("FileMode.Append is not supported, please contact the developers if you are interested in helping to implementing it");
}
}
internal static unsafe SafeFileHandle CreateFile2(
string lpFileName,
int dwDesiredAccess,
System.IO.FileShare dwShareMode,
System.IO.FileMode dwCreationDisposition,
CREATEFILE2_EXTENDED_PARAMETERS *pCreateExParams)
{
lpFileName = PathInternal.EnsureExtendedPrefixOverMaxPath(lpFileName);
return(CreateFile2Private(lpFileName, dwDesiredAccess, dwShareMode, dwCreationDisposition, pCreateExParams));
}
public FATXFileStream(string Path, System.IO.FileMode fmode, File file)
{
xFile = file;
// Set our position
long off = VariousFunctions.GetBlockOffset(xFile.BlocksOccupied[0], xFile);
Underlying = new FileStream(Path, fmode);
//Underlying.Position = off;
Position = 0;
}
/// <summary>
/// Initializes a new instance of the <see cref="IsolatedStorageFileStream"/> class giving access to the file designated by path,
/// in the specified mode, with the specified file access, using the file sharing mode specified by share,
/// and in the context of the <see cref="IsolatedStorageFile"/> specified by isf.
/// </summary>
/// <param name="path">The relative path of the file within isolated storage.</param>
/// <param name="mode">One of the <see cref="FileMode"/> values.</param>
/// <param name="access">A bitwise combination of the <see cref="FileAccess"/> values.</param>
/// <param name="share">A bitwise combination of the <see cref="FileShare"/> values.</param>
/// <param name="isf">The <see cref="IsolatedStorageFile"/> in which to open the <see cref="IsolatedStorageFileStream"/>.</param>
public IsolatedStorageFileStream(string path, System.IO.FileMode mode, System.IO.FileAccess access,
System.IO.FileShare share, IsolatedStorage.IsolatedStorageFile isf)
: base(Path.Combine(isf.BasePath, path), mode, access, share)
{
//also set the hidden attribute (just in case)
System.IO.FileInfo fi = new System.IO.FileInfo(System.IO.Path.Combine(isf.BasePath, path));
fi.Attributes |= System.IO.FileAttributes.Hidden;
_isolatedStorageFile = isf;
}
/// <summary>
/// Create a new filestream. Can be synced over async task (netstandard)
/// </summary>
private FileStream CreateFileStream(string path, System.IO.FileMode mode, FileAccess access, FileShare share)
{
#if !NET35
if (_options.Async)
{
return(this.SyncOverAsync(() => new FileStream(path, mode, access, share, BasePage.PAGE_SIZE)));
}
#endif
return(new FileStream(path, mode, access, share, BasePage.PAGE_SIZE));
}
protected override FileSystemFileStream ImplOpenFile(string FileName, System.IO.FileMode FileMode)
{
switch (FileMode)
{
case FileMode.Open:
return(base.ImplOpenFile(FileName, FileMode));
default:
throw(new NotImplementedException());
}
}
private static FileMode GetFileMode(IO.FileMode mode)
{
if (mode != IO.FileMode.Append)
{
return((FileMode)(int)mode);
}
else
{
return((FileMode)(int)IO.FileMode.OpenOrCreate);
}
}
public static void Write(string fileName, string text, System.IO.FileMode fileMode)
{
Directory.CreateDirectory(Path.GetDirectoryName(fileName));
using (FileStream file = new FileStream(fileName, fileMode, FileAccess.Write, FileShare.Read))
{
using (StreamWriter writer = new StreamWriter(file, Encoding.Unicode))
{
writer.WriteLine(text);
}
}
}
public Stream TryCreateFileStream(string path, System.IO.FileMode mode)
{
try
{
return(new FileStream(path, mode));
}
catch (Exception)
{
return(null);
}
}
// Translate managed FileMode member to unmanaged file mode flag.
internal static WindowsNative.FileMode TranslateFileMode(System.IO.FileMode mode)
{
if (mode != System.IO.FileMode.Append)
{
return((WindowsNative.FileMode)(int) mode);
}
else
{
return((WindowsNative.FileMode)(int) System.IO.FileMode.OpenOrCreate);
}
}
public StreamOutput(string f, System.IO.FileMode fm)
: base(OutputType.Stream)
{
filename = f; filemode = fm;
}