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/** @file
EFI_FILE_PROTOCOL.Close() member function for the Virtio Filesystem driver.
Copyright (C) 2020, Red Hat, Inc.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Library/BaseLib.h> // RemoveEntryList()
#include <Library/MemoryAllocationLib.h> // FreePool()
#include "VirtioFsDxe.h"
EFI_STATUS
EFIAPI
VirtioFsSimpleFileClose (
IN EFI_FILE_PROTOCOL *This
)
{
VIRTIO_FS_FILE *VirtioFsFile;
VIRTIO_FS *VirtioFs;
VirtioFsFile = VIRTIO_FS_FILE_FROM_SIMPLE_FILE (This);
VirtioFs = VirtioFsFile->OwnerFs;
//
// At this point, the implementation is only suitable for closing the
// VIRTIO_FS_FILE that was created by VirtioFsOpenVolume().
//
ASSERT (VirtioFsFile->IsDirectory);
ASSERT (VirtioFsFile->NodeId == VIRTIO_FS_FUSE_ROOT_DIR_NODE_ID);
//
// Close the root directory.
//
// Ignore any errors, because EFI_FILE_PROTOCOL.Close() is required to
// release the EFI_FILE_PROTOCOL object unconditionally.
//
VirtioFsFuseReleaseFileOrDir (VirtioFs, VirtioFsFile->NodeId,
VirtioFsFile->FuseHandle, VirtioFsFile->IsDirectory);
//
// One fewer file left open for the owner filesystem.
//
RemoveEntryList (&VirtioFsFile->OpenFilesEntry);
FreePool (VirtioFsFile);
return EFI_SUCCESS;
}
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