Crate disk

Expand description

VM disk image file format I/O.

Modules§

android_sparse 🔒
asynchronous 🔒: Asynchronous disk image helpers.
composite 🔒
gpt 🔒: Functions for writing GUID Partition Tables for use in a composite disk image.
qcow 🔒
sys 🔒
zstd 🔒: Use seekable zstd archive of raw disk image as read only disk

DiskFileParams
PartitionInfo: Information about a partition to create.
QcowFile: Represents a qcow2 file. This is a sparse file format maintained by the qemu project. Full documentation of the format can be found in the qemu repository.
SingleFileDisk: A disk backed by a single file that implements AsyncDisk for access.

CompositeError
Error
GptError
ImagePartitionType: The type of partition.
ImageType: The variants of image files on the host that can be used as virtual disks.

MAX_NESTING_DEPTH 🔒: Nesting depth limit for disk formats that can open other disk files.
QCOW_MAGIC

AsyncDisk: An asynchronously accessible disk.
DiskFile: The prerequisites necessary to support a block device.
DiskGetLen: A trait for getting the length of a disk image or raw block device.
ToAsyncDisk: A DiskFile that can be converted for asychronous access.

create_composite_disk: Create a new composite disk image containing the given partitions, and write it out to the given files.
create_zero_filler: Create a zero filler file which can be used to fill the gaps between partition files. The filler is sized to be big enough to fill the gaps. (1 << PARTITION_SIZE_SHIFT)
detect_image_type: Detect the type of an image file by checking for a valid header of the supported formats.
open_disk_file: Inspect the image file type and create an appropriate disk file to match it.