package capnp-rpc-lwt
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capnp-rpc-lwt
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package capnp-rpc-lwt
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An off-line (persistent) capability reference.
A sturdy ref contains all the information necessary to get a live reference to a service:
- The network address of the hosting vat (e.g. TCP host and port)
- A way to authenticate the hosting vat (e.g. a fingerprint of the vat's public key)
- A way to identify the target service within the vat and prove permission to access it (e.g. a "Swiss number")
val connect : 'a t -> ('a Capability.t, Capnp_rpc.Exception.t) result Lwt.tconnect t returns a live reference to t's service.
val connect_exn : 'a t -> 'a Capability.t Lwt.tconnect_exn is a wrapper for connect that returns a failed Lwt thread on error.
val reader :
('a StructStorage.reader_t -> Capnp.MessageSig.ro Slice.t option) ->
'a StructStorage.reader_t ->
Uri.treader accessor is a field accessor for reading a sturdy ref. e.g. if sr_get is a generated field accessor for an AnyPointer field, then reader Reader.Struct.sr_get is an accessor that treats it as a SturdyRef field. todo: This should really return a sturdy ref, not a URI, but that requires a change to the spec to add a sturdy ref cap-descriptor table entry type.
val builder :
('a StructStorage.builder_t -> Capnp.MessageSig.rw Slice.t) ->
'a StructStorage.builder_t ->
_ t ->
unitbuilder setter converts a generated AnyPointer field setter setter to a SturdyRef setter. Use it to add a SturdyRef to a message with builder Params.sr_get params sr.