package lwt

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Promises and event-driven I/O

Install

Dune Dependency

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Maintainers

Sources

5.8.0.tar.gz
md5=2682558f405ab7c8638eeb16d0f9f46f
sha512=7f6548a1b1dbfdbc98d9352151ca7be97fa2ab63dbcc429208ce8d08308eee13f7fce31e0cca53f8880233959a60212d622270dd51bf164c3ee272f179769bd9

doc/lwt.unix/Lwt_engine/class-abstract/index.html

Class Lwt_engine.abstractSource

Abstract class for engines.

method destroy : unit

Destroy the engine, remove all its events and free its associated resources.

method transfer : abstract -> unit

transfer engine moves all events from the current engine to engine. Note that timers are reset in the destination engine, i.e. if a timer with a delay of 2 seconds was registered 1 second ago it will occur in 2 seconds in the destination engine.

Event loop methods

method virtual iter : bool -> unit
method fork : unit
method on_readable : Unix.file_descr -> (event -> unit) -> event
method on_writable : Unix.file_descr -> (event -> unit) -> event
method on_timer : float -> bool -> (event -> unit) -> event
method fake_io : Unix.file_descr -> unit
method readable_count : int
method writable_count : int
method timer_count : int
method forwards_signal : int -> bool

Backend methods

Notes:

  • the callback passed to register methods is of type unit -> unit and not event -> unit
  • register methods return a lazy value which unregisters the event when forced
method private virtual cleanup : unit

Cleanup resources associated with the engine.

method private virtual register_readable : Unix.file_descr -> (unit -> unit) -> unit Lazy.t
method private virtual register_writable : Unix.file_descr -> (unit -> unit) -> unit Lazy.t
method private virtual register_timer : float -> bool -> (unit -> unit) -> unit Lazy.t
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