package caqti

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in-package search v0.2.0

Unified interface to relational database libraries

Install

dune-project

Dependency

sha256=8f6c1724b59ac22a5c657c9e53b9a1706e39ecd462e82958b0cea88e43f0aba7

sha512=75b968ab37ae94cadcaabbcce0f91b1ffa4334ed69e441bdeb823077eb7675264282efb0fab3baaaad446582cfb427769e19f22c8c194a316ac2248c3fba5cf8

type +'a t

A concurrency monad with an optional failure monad, or just the identity type constructor for blocking operation.

module Infix : sig ... end

val return : 'a -> 'a t

Return operation of the concurrency monad.

val catch : (unit -> 'a t) -> (exn -> 'a t) -> 'a t

val finally : (unit -> 'a t) -> (unit -> unit t) -> 'a t

finally f g runs f () and then runs g () whether the former finished, failed with an exception, or failed with a monadic failure.

val cleanup : (unit -> 'a t) -> (unit -> unit t) -> 'a t

cleanup f g runs f () and then runs g () and re-raise the failure if and only if f () failed with an exception or a monadic failure.