Module `Async_unix.Sys`Source

This module overrides everything in the Core.Sys module that might block. Functions do the same thing as their counterparts in Core.Sys, but instead return deferreds. For a description of their semantics see the documentation for the Core.Sys module.

Sourceval argv : string array

deprecated [since 2019-08] Use [Sys.get_argv] instead, which has the correct behavior when [caml_sys_modify_argv] is called.

Sourceval get_argv : unit -> string array

Sourceval executable_name : string

Source

val file_exists : 
  ?follow_symlinks:bool ->
  string ->
  [ `Yes | `No | `Unknown ] Async_kernel.Deferred.t

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val file_exists_exn : 
  ?follow_symlinks:bool ->
  string ->
  bool Async_kernel.Deferred.t

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val when_file_exists : 
  ?follow_symlinks:bool ->
  ?poll_delay:Core.Time.Span.t ->
  string ->
  unit Async_kernel.Deferred.t

when_file_exists ?poll_delay file returns a deferred that becomes determined when file exists. The default poll delay is 0.5 seconds. It raises an exception if it can not check whether the file is there, in the same cases file_exists returns `Unknown.

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val when_file_changes : 
  ?on_exn:(exn -> unit) ->
  ?poll_delay:Core.Time.Span.t ->
  string ->
  Core.Time.t Async_kernel.Pipe.Reader.t

when_file_changes file polls file using stat and writes file's mtime to the pipe every time it changes. The first time in the pipe will be file's current mtime. To stop polling, close the pipe.

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val is_directory : 
  ?follow_symlinks:bool ->
  string ->
  [ `Yes | `No | `Unknown ] Async_kernel.Deferred.t

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val is_directory_exn : 
  ?follow_symlinks:bool ->
  string ->
  bool Async_kernel.Deferred.t

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val is_file : 
  ?follow_symlinks:bool ->
  string ->
  [ `Yes | `No | `Unknown ] Async_kernel.Deferred.t

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val is_file_exn : 
  ?follow_symlinks:bool ->
  string ->
  bool Async_kernel.Deferred.t

Sourceval remove : string -> unit Async_kernel.Deferred.t

Sourceval rename : string -> string -> unit Async_kernel.Deferred.t

Sourceval getenv : string -> string option

Sourceval getenv_exn : string -> string

Sourceval command : string -> int Async_kernel.Deferred.t

Sourceval command_exn : string -> unit Async_kernel.Deferred.t

Sourceval quote : string -> string

Sourceval chdir : string -> unit Async_kernel.Deferred.t

Sourceval getcwd : unit -> string Async_kernel.Deferred.t

Sourceval readdir : string -> string array Async_kernel.Deferred.t

Sourceval ls_dir : string -> string list Async_kernel.Deferred.t

Sourceval home_directory : unit -> string Async_kernel.Deferred.t

Sourceval opaque_identity : 'a -> 'a

Sourceval interactive : bool Core.ref

Sourceval os_type : string

Sourceval word_size : int

Sourceval int_size : int

Sourceval big_endian : bool

Sourceval ocaml_version : string

Sourceval execution_mode : unit -> [ `Bytecode | `Native ]

Sourceval c_int_size : unit -> int

package async_unix

Module Async_unix.SysSource

Module `Async_unix.Sys`Source