Module `Resolver.Make`Source

Functor to construct a concrete resolver using a Conduit.IO implementation, usually via either Lwt or Async

Parameters

module IO : Conduit.IO

Signature

Sourcetype 'a io = 'a IO.t

Abstract type of the cooperative threading library used, normally defined via the IO module type

Sourcetype t

State handle for a running resolver

include Sexplib0.Sexpable.S with type t := t

Sourceval t_of_sexp : Sexplib0.Sexp.t -> t

Sourceval sexp_of_t : t -> Sexplib0.Sexp.t

Sourcetype svc = service

Abstract type for a service entry, which maps a URI scheme into a protocol handler and TCP port

Sourceval sexp_of_svc : svc -> Sexplib0.Sexp.t

Sourceval svc_of_sexp : Sexplib0.Sexp.t -> svc

Sourcetype rewrite_fn = svc -> Uri.t -> Conduit.endp io

A rewrite function resolves a service and a URI into a concrete endpoint.

Sourcetype service_fn = string -> svc option io

A service function maps the string (such as http or ftp) from a URI scheme into a service description that includes enough metadata about the service to subsequently resolve it into an endpoint.

Sourceval (++) : service_fn -> service_fn -> service_fn

f ++ g is the composition of the service functions f and g.

Source

val init : 
  ?service:service_fn ->
  ?rewrites:(string * rewrite_fn) list ->
  unit ->
  t

init ?service ?rewrites will initialize the resolver and return a state handler. The service argument should contain the system-specific resolution mechanism for URI schemas.

The rewrites argument can optionally override a subset of the URI domain name with the given rewrite_fn to permit custom resolution rules. For example, a rewrite rule for ".xen" would let the rewrite function resolve hostnames such as "foo.xen" into a shared memory channel for the "foo" virtual machine.

Sourceval add_rewrite : host:string -> f:rewrite_fn -> t -> unit

add_rewrite ~host f t will add to the t resolver the f rewrite rule for all the domain names that shortest-prefix match host

Sourceval set_service : f:service_fn -> t -> unit

Sourceval service : t -> service_fn

service t is the function which is called when trying to resolve a hostname with t.

Source

val resolve_uri : 
  ?rewrites:(string * rewrite_fn) list ->
  uri:Uri.t ->
  t ->
  Conduit.endp io

resolve_uri ?rewrites ~uri t will use t to resolve the uri into a concrete endpoint. Any rewrites that are passed in will be overlayed on the existing rules within the t resolver, but not otherwise modify it.

package conduit

Module Resolver.MakeSource

Parameters

Signature

Module `Resolver.Make`Source