package caqti

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in-package search v0.2.0

Abstraction over multiple database libraries

Install

Dune Dependency

github.com Readme Changelog Edit opam file Versions (21)

Authors

P

Petter A. Urkedal

Maintainers

P

paurkedal@gmail.com

Sources

caqti-0.9.0.tbz

sha256=4c84a16d983d0fed2786f536a3fa4d8fa113b8b30b4deea4a74772582d5489b2

md5=42a2e2d3b73d7fbaecc618549aad2865

doc/caqti.v1/Caqti1_pool/Make/index.html

Module `Caqti1_pool.Make`Source

Parameters

module System : Caqti1_system_sig.S

Signature

Sourcetype 'a t

Source

val create : 
  ?max_size:int ->
  ?check:('a -> (bool -> unit) -> unit) ->
  ?validate:('a -> bool System.io) ->
  (unit -> 'a System.io) ->
  ('a -> unit System.io) ->
  'a t

(internal) create alloc free is a pool of resources allocated by alloc and freed by free. This is primarily indented for implementing the connect_pool functions.

parameter max_size
Maximum number of resources to allocate at any given time.

parameter check
A function used to check a resource after use.

parameter validate
A function to check before use that a resource is still valid.

Sourceval size : 'a t -> int

size pool is the current number of open resources in pool.

Sourceval use : ?priority:float -> ('a -> 'b System.io) -> 'a t -> 'b System.io

use f pool calls f on a resource drawn from pool, handing back the resource to the pool when f exits.

parameter priority
Requests for the resource are handled in decreasing order of priority. The default priority is 0.0.

Sourceval drain : 'a t -> unit System.io

drain pool closes all resources in pool. The pool is still usable, as new resources will be created on demand.

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Parameters
Signature