package caqti

val create : 
  ?max_size:int ->
  ?check:('a -> (bool -> unit) -> unit) ->
  ?validate:('a -> bool System.future) ->
  (unit -> ('a, 'e) result System.future) ->
  ('a -> unit System.future) ->
  ('a, 'e) 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, 'e) t -> int

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

Source

val use : 
  ?priority:float ->
  ('a -> ('b, 'e) result System.future) ->
  ('a, 'e) t ->
  ('b, 'e) result System.future

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, 'e) t -> unit System.future

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

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package caqti

Install

dune-project Dependency

Authors

Maintainers

Sources

doc/caqti/Caqti_pool/Make/index.html

Module Caqti_pool.MakeSource

Parameters

Signature

dune-project
Dependency

Module `Caqti_pool.Make`Source