README

mirage-block-ramdisk

A simple in-memory BLOCK device.

Please seethe API documentation.

Features

• Can be dynamically resized

• Supports querying sparseness information

Example usage

In a top-level like utop:

# #require "io-page.unix";;# #require "mirage-block";;# #require "mirage-block-ramdisk";;# #require "lwt.syntax";;# lwt t_or_error = Ramdisk.create ~name:"hello" ~size_sectors:1024L ~sector_size:512;;val t_or_error : [ `Error of Ramdisk.error | `Ok of Ramdisk.t ] = `Ok <abstr># let t = Mirage_block.Error.ok_exn t_or_error;;val t : Ramdisk.t = <abstr># let page = Io_page.(to_cstruct (get 1));;val page : Ramdisk.page_aligned_buffer =  {Cstruct.buffer = <abstr>; off = 0; len = 4096}# lwt result_or_error = Ramdisk.read t 0L [ page ];;val result_or_error : [ `Error of Ramdisk.error | `Ok of unit ] = `Ok ()

1. lwt
2. mirage-block>= "2.0.0"
3. io-page
4. cstruct< "6.1.0"
5. dune
6. ocaml>= "4.06.0"

1. mirage-block-combinatorswith-test
2. io-page-unixwith-test
3. alcotestwith-test & < "1.4.0"

1. qcow>= "0.10.2"
2. qcow-tool

None