public static extern SafeFileHandle CreateFile(
string lpFileName,
NativeMethods.EFileAccess dwDesiredAccess,
NativeMethods.EFileShare dwShareMode,
IntPtr lpSecurityAttributes,
NativeMethods.ECreationDisposition dwCreationDisposition,
NativeMethods.EFileAttributes dwFlagsAndAttributes,
IntPtr hTemplateFile);
/// <summary>
/// Creates or overwrites the file at the specified path.
/// </summary>
/// <param name="path">The path and name of the file to create. Supports long file paths.</param>
/// <returns>A <see cref="System.IO.Stream"/> that provides read/write access to the file specified in path.</returns>
public override System.IO.Stream CreateFile(Path path)
{
if (path.IsEmpty)
{
throw new ArgumentNullException("path");
}
NativeMethods.EFileAccess fileAccess = NativeMethods.EFileAccess.GenericWrite | NativeMethods.EFileAccess.GenericRead;
NativeMethods.EFileShare fileShareMode = NativeMethods.EFileShare.None;//exclusive
NativeMethods.ECreationDisposition creationDisposition = NativeMethods.ECreationDisposition.CreateAlways;
SafeFileHandle hFile = NativeMethods.CreateFile(path.WithWin32LongPathPrefix(), fileAccess, fileShareMode, IntPtr.Zero, creationDisposition, NativeMethods.EFileAttributes.Normal, IntPtr.Zero);
if (hFile.IsInvalid)
{
throw CreateWin32LastErrorException("Error creating file at path '{0}'.", path);
}
return(new System.IO.FileStream(hFile, System.IO.FileAccess.ReadWrite));
}
