package vhd-format-lwt

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in-package search v0.2.0

vhd-format-lwt
- Vhd_format_lwt
  - Block
  - File
  - IO

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val use_unbuffered : bool ref

if set to true we will use unbuffered I/O via O_DIRECT

val openfile : string -> bool -> int -> Unix.file_descr

openfile filename mode opens filename read/write using the current global buffering mode

val get_file_size : string -> int64

fet_file_size filename returns the number of bytes in filename

val fsync : Unix.file_descr -> unit

fsync fd ensures that any buffered data is written to disk and throws a Unix_error if any error has been recorded.

val lseek_data : Unix.file_descr -> int64 -> int64

lseek_data fd from sets the file pointer to the next block of data greater than or equal to from.

val lseek_hole : Unix.file_descr -> int64 -> int64

lseek_hold fd from sets the file pointer to the next hole of data greater than or equal to from. If there are no holes after from, then the file offset will be set to the end of the file (i.e. there is an implicit hole at the end of the file)