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package qcow-format
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module Version : sig ... endmodule CryptMethod : sig ... endval sexp_of_extension : extension -> Ppx_sexp_conv_lib.Sexp.tval extension_of_sexp : Ppx_sexp_conv_lib.Sexp.t -> extensionval __extension_of_sexp__ : Ppx_sexp_conv_lib.Sexp.t -> extensiontype additional = {dirty : bool;corrupt : bool;lazy_refcounts : bool;autoclear_features : int64;refcount_order : int32;
}Version 3 and above have additional header fields
val sexp_of_additional : additional -> Ppx_sexp_conv_lib.Sexp.tval additional_of_sexp : Ppx_sexp_conv_lib.Sexp.t -> additionaltype t = {version : Version.t;backing_file_offset : offset;(*offset of the backing file path
*)backing_file_size : int32;(*length of the backing file path
*)cluster_bits : int32;(*a cluster is 2 ** cluster_bits in size
*)size : int64;(*virtual size of the image
*)crypt_method : CryptMethod.t;l1_size : int32;(*number of 8-byte entries in the L1 table
*)l1_table_offset : offset;(*offset of the L1 table
*)refcount_table_offset : offset;(*offset of the refcount table
*)refcount_table_clusters : int32;(*size of the refcount table in clusters
*)nb_snapshots : int32;(*the number of internal snapshots
*)snapshots_offset : offset;(*offset of the snapshot header
*)additional : additional option;(*for version 3 or higher
*)extensions : extension list;(*for version 3 or higher
*)
}The qcow2 header
val refcounts_per_cluster : t -> int64The number of 16-bit reference counts per cluster
val max_refcount_table_size : t -> int64Compute the maximum size of the refcount table
Compute the number of L2 tables required for this size of image
include Qcow_s.SERIALISABLE with type t := t
val sizeof : t -> intThe size of a buffer needed to hold t
val read : Cstruct.t -> (t * Cstruct.t, [ `Msg of string ]) Result.resultRead a t from the given buffer and return it, along with the unused remainder of the buffer. If the buffer cannot be parsed then return an error.
val write : t -> Cstruct.t -> (Cstruct.t, [ `Msg of string ]) Result.resultWrite a t into the given buffer. If the buffer is too small, then return an error. Return the unused remainder of the buffer.
include Qcow_s.PRINTABLE with type t := t
val to_string : t -> stringProduce a pretty human-readable string from a value