Module Lwt_main.Exit_hooks

Contents

Instructions: Use this module in your project

In the IDE (CLion, Visual Studio Code, Xcode, etc.) you use for your DkSDK project:

  1. Add the following to your project's dependencies/CMakeLists.txt:

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    DkSDKProject_DeclareAvailable(lwt
        CONSTRAINT "= 5.6.1"
        FINDLIBS lwt lwt.unix)
    DkSDKProject_MakeAvailable(lwt)
  2. Add the Findlib::lwt library to any desired targets in src/*/CMakeLists.txt:

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    target_link_libraries(YourPackage_YourLibraryName
         # ... existing libraries, if any ...
         Findlib::lwt)
  3. Click your IDE's Build button

Not using DkSDK?

FIRST, do one or all of the following:

  1. Run:

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    opam install lwt.5.6.1
  2. Edit your dune-project and add:

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    (package
      (name YourExistingPackage)
      (depends
      ; ... existing dependenices ...
      (lwt (>= 5.6.1))))

    Then run:

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    dune build *.opam # if this fails, run: dune build
  3. Edit your <package>.opam file and add:

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    depends: [
      # ... existing dependencies ...
      "lwt" {>= "5.6.1"}
    ]

    Then run:

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    opam install . --deps-only

FINALLY, add the lwt.unix library to any desired (library)and/or (executable) targets in your **/dune files:

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(library
  (name YourLibrary)
  ; ... existing library options ...
  (libraries
    ; ... existing libraries ...
    lwt.unix))

(executable
  (name YourExecutable)
  ; ... existing executable options ...
  (libraries
    ; ... existing libraries ...
    lwt.unix))
type``'return_value kind`` ='return_value Lwt.t

Hooks are functions of either type unit -> unit or unit -> unit Lwt.t; this type constructor is used only to express both possibilities in one signature.

type hook

Values of type hook represent hooks that have been added, so that they can be removed later (if needed).

valadd_first : ``(``unit->``unitkind)`` -> hook

Adds a hook to the hook sequence underlying this module, to be run first, before any other hooks already added.

valadd_last : ``(``unit->``unitkind)`` -> hook

Adds a hook to the hook sequence underlying this module, to be run last, after any other hooks already added.

valremove :hook -> unit

Removes a hook added by add_first or add_last.

valremove_all : ``unit-> unit

Removes all hooks from the hook sequence underlying this module.

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