package caqti

You can search for identifiers within the package.

in-package search v0.2.0

Unified interface to relational database libraries

Install

sha256=ba4dfd5ff94376b5e003f682410b7b3b392c0bbaa0253679fe7671c2e07e895b

sha512=0416807fba620429ee4d64f3a6991238112e0e10dfba9703dced46cf332fd22135a9873007d025441228ce66fb192bf730d4bc776dd2c1a973d7604ab6e789e0

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.