public static SafeFileHandle CreateSafeFileHandle(
this IStorageFile windowsRuntimeFile,
FileAccess access = FileAccess.ReadWrite,
FileShare share = FileShare.Read,
FileOptions options = FileOptions.None)
{
if (windowsRuntimeFile == null)
{
throw new ArgumentNullException(nameof(windowsRuntimeFile));
}
HANDLE_ACCESS_OPTIONS accessOptions = FileAccessToHandleAccessOptions(access);
HANDLE_SHARING_OPTIONS sharingOptions = FileShareToHandleSharingOptions(share);
HANDLE_OPTIONS handleOptions = FileOptionsToHandleOptions(options);
IStorageItemHandleAccess handleAccess = windowsRuntimeFile.As <IStorageItemHandleAccess>();
if (handleAccess == null)
{
return(null);
}
return(handleAccess.Create(
accessOptions,
sharingOptions,
handleOptions,
IntPtr.Zero));
}
private static HANDLE_SHARING_OPTIONS FileShareToHandleSharingOptions(FileShare share)
{
if ((share & FileShare.Inheritable) != 0)
{
throw new NotSupportedException(SR.NotSupported_Inheritable);
}
if (share < FileShare.None || share > (FileShare.ReadWrite | FileShare.Delete))
{
throw new ArgumentOutOfRangeException(nameof(share), share, null);
}
HANDLE_SHARING_OPTIONS sharingOptions = HANDLE_SHARING_OPTIONS.HSO_SHARE_NONE;
if ((share & FileShare.Read) != 0)
{
sharingOptions |= HANDLE_SHARING_OPTIONS.HSO_SHARE_READ;
}
if ((share & FileShare.Write) != 0)
{
sharingOptions |= HANDLE_SHARING_OPTIONS.HSO_SHARE_WRITE;
}
if ((share & FileShare.Delete) != 0)
{
sharingOptions |= HANDLE_SHARING_OPTIONS.HSO_SHARE_DELETE;
}
return(sharingOptions);
}
public static SafeFileHandle CreateSafeFileHandle(
this IStorageFolder rootDirectory,
string relativePath,
FileMode mode,
FileAccess access,
FileShare share = FileShare.Read,
FileOptions options = FileOptions.None)
{
if (rootDirectory == null)
{
throw new ArgumentNullException(nameof(rootDirectory));
}
if (relativePath == null)
{
throw new ArgumentNullException(nameof(relativePath));
}
HANDLE_CREATION_OPTIONS creationOptions = FileModeToCreationOptions(mode);
HANDLE_ACCESS_OPTIONS accessOptions = FileAccessToHandleAccessOptions(access);
HANDLE_SHARING_OPTIONS sharingOptions = FileShareToHandleSharingOptions(share);
HANDLE_OPTIONS handleOptions = FileOptionsToHandleOptions(options);
IStorageFolderHandleAccess handleAccess = ((object)rootDirectory) as IStorageFolderHandleAccess;
if (handleAccess == null)
{
return(null);
}
SafeFileHandle handle;
int result = handleAccess.Create(
relativePath,
creationOptions,
accessOptions,
sharingOptions,
handleOptions,
IntPtr.Zero,
out handle);
if (result != 0)
{
throw Win32Marshal.GetExceptionForWin32Error(Win32Marshal.TryMakeWin32ErrorCodeFromHR(result), relativePath);
}
return(handle);
}
public static SafeFileHandle CreateSafeFileHandle(
this IStorageFile windowsRuntimeFile,
FileAccess access = FileAccess.ReadWrite,
FileShare share = FileShare.Read,
FileOptions options = FileOptions.None)
{
if (windowsRuntimeFile == null)
{
throw new ArgumentNullException(nameof(windowsRuntimeFile));
}
HANDLE_ACCESS_OPTIONS accessOptions = FileAccessToHandleAccessOptions(access);
HANDLE_SHARING_OPTIONS sharingOptions = FileShareToHandleSharingOptions(share);
HANDLE_OPTIONS handleOptions = FileOptionsToHandleOptions(options);
IStorageItemHandleAccess handleAccess = ((object)windowsRuntimeFile) as IStorageItemHandleAccess;
if (handleAccess == null)
{
return(null);
}
SafeFileHandle handle;
int result = handleAccess.Create(
accessOptions,
sharingOptions,
handleOptions,
IntPtr.Zero,
out handle);
if (result != 0)
{
throw Win32Marshal.GetExceptionForWin32Error(Win32Marshal.TryMakeWin32ErrorCodeFromHR(result), windowsRuntimeFile.Name);
}
return(handle);
}
public static SafeFileHandle CreateSafeFileHandle(
this IStorageFolder rootDirectory,
string relativePath,
FileMode mode,
FileAccess access,
FileShare share = FileShare.Read,
FileOptions options = FileOptions.None)
{
if (rootDirectory == null)
{
throw new ArgumentNullException(nameof(rootDirectory));
}
if (relativePath == null)
{
throw new ArgumentNullException(nameof(relativePath));
}
HANDLE_CREATION_OPTIONS creationOptions = FileModeToCreationOptions(mode);
HANDLE_ACCESS_OPTIONS accessOptions = FileAccessToHandleAccessOptions(access);
HANDLE_SHARING_OPTIONS sharingOptions = FileShareToHandleSharingOptions(share);
HANDLE_OPTIONS handleOptions = FileOptionsToHandleOptions(options);
IStorageFolderHandleAccess handleAccess = rootDirectory.As <IStorageFolderHandleAccess>();
if (handleAccess == null)
{
return(null);
}
return(handleAccess.Create(
relativePath,
creationOptions,
accessOptions,
sharingOptions,
handleOptions,
IntPtr.Zero));
}
public int Create([NativeTypeName("LPCWSTR")] ushort *fileName, HANDLE_CREATION_OPTIONS creationOptions, HANDLE_ACCESS_OPTIONS accessOptions, HANDLE_SHARING_OPTIONS sharingOptions, HANDLE_OPTIONS options, IOplockBreakingHandler *oplockBreakingHandler, [NativeTypeName("HANDLE *")] IntPtr *interopHandle)
{
return(((delegate * unmanaged <IStorageFolderHandleAccess *, ushort *, HANDLE_CREATION_OPTIONS, HANDLE_ACCESS_OPTIONS, HANDLE_SHARING_OPTIONS, HANDLE_OPTIONS, IOplockBreakingHandler *, IntPtr *, int>)(lpVtbl[3]))((IStorageFolderHandleAccess *)Unsafe.AsPointer(ref this), fileName, creationOptions, accessOptions, sharingOptions, options, oplockBreakingHandler, interopHandle));
}
public int Create(HANDLE_ACCESS_OPTIONS accessOptions, HANDLE_SHARING_OPTIONS sharingOptions, HANDLE_OPTIONS options, IOplockBreakingHandler *oplockBreakingHandler, [NativeTypeName("HANDLE *")] IntPtr *interopHandle)
{
return(((delegate * unmanaged <IStorageItemHandleAccess *, HANDLE_ACCESS_OPTIONS, HANDLE_SHARING_OPTIONS, HANDLE_OPTIONS, IOplockBreakingHandler *, IntPtr *, int>)(lpVtbl[3]))((IStorageItemHandleAccess *)Unsafe.AsPointer(ref this), accessOptions, sharingOptions, options, oplockBreakingHandler, interopHandle));
}
