package eio_posix

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Low-level API for making POSIX calls directly.

This module provides an effects-based API for calling POSIX functions.

Normally it's better to use the cross-platform Eio APIs instead, which uses these functions automatically where appropriate.

These functions mostly copy the POSIX APIs directly, except that:

type fd := Eio_unix.Fd.t

val await_readable : fd -> unit

val await_writable : fd -> unit

val sleep_until : Mtime.t -> unit

val read : fd -> bytes -> int -> int -> int

val write : fd -> bytes -> int -> int -> int

val socket : 
  sw:Eio.Std.Switch.t ->
  Unix.socket_domain ->
  Unix.socket_type ->
  int ->
  fd

val connect : fd -> Unix.sockaddr -> unit

val accept : sw:Eio.Std.Switch.t -> fd -> fd * Unix.sockaddr

val shutdown : fd -> Unix.shutdown_command -> unit

val recv_msg : fd -> Cstruct.t array -> Unix.sockaddr * int

val recv_msg_with_fds : 
  sw:Eio.Std.Switch.t ->
  max_fds:int ->
  fd ->
  Cstruct.t array ->
  Unix.sockaddr * int * fd list

val send_msg : 
  fd ->
  ?fds:fd list ->
  ?dst:Unix.sockaddr ->
  Cstruct.t array ->
  int

val getrandom : Cstruct.t -> unit

val fstat : fd -> Unix.LargeFile.stats

val lstat : string -> Unix.LargeFile.stats

val realpath : string -> string

val mkdir : ?dirfd:fd -> mode:int -> string -> unit

val unlink : ?dirfd:fd -> dir:bool -> string -> unit

val rename : ?old_dir:fd -> string -> ?new_dir:fd -> string -> unit

val readdir : string -> string array

val readv : fd -> Cstruct.t array -> int

val writev : fd -> Cstruct.t array -> int

val preadv : file_offset:Optint.Int63.t -> fd -> Cstruct.t array -> int

val pwritev : file_offset:Optint.Int63.t -> fd -> Cstruct.t array -> int

val pipe : sw:Eio.Std.Switch.t -> fd * fd

module Open_flags : sig ... end

val openat : 
  ?dirfd:fd ->
  sw:Eio.Std.Switch.t ->
  mode:int ->
  string ->
  Open_flags.t ->
  fd

Note: the returned FD is always non-blocking and close-on-exec.

module Process : sig ... end