package caqti

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in-package search v0.2.0

Unified interface to relational database libraries

Install

dune-project

Dependency

sha256=4dadf33904c9fd25065dbf6739aa0a9eaaaea000c6981c17a534b475dd5c3891

sha512=13c1cbeff3ee0e54ed1cc8f8df5f7660c292d5d50faa9480916f3c7e578961ab3b3779395c0664346cf42509f7b98d986e8377133542869a462288d6c0e34cbf

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.