97 lines
4.1 KiB
OCaml
97 lines
4.1 KiB
OCaml
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(**************************************************************************)
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(* *)
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(* Copyright (c) 2014 - 2018. *)
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(* Dynamic Ledger Solutions, Inc. <contact@tezos.com> *)
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(* *)
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(* All rights reserved. No warranty, explicit or implicit, provided. *)
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(* *)
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(**************************************************************************)
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let build_rpc_directory validator =
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let distributed_db = Validator.distributed_db validator in
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let state = Distributed_db.state distributed_db in
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let dir : unit RPC_directory.t ref = ref RPC_directory.empty in
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let gen_register0 s f =
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dir := RPC_directory.gen_register !dir s (fun () p q -> f p q) in
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let gen_register1 s f =
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dir := RPC_directory.gen_register !dir s (fun ((), a) p q -> f a p q) in
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gen_register0 Monitor_services.S.valid_blocks begin fun q () ->
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let block_stream, stopper = State.watcher state in
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let shutdown () = Lwt_watcher.shutdown stopper in
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let in_chains block =
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Lwt_list.map_p (Chain_directory.get_chain_id state) q#chains >>= function
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| [] -> Lwt.return_true
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| chains ->
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let chain_id = State.Block.chain_id block in
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Lwt.return (List.exists (Chain_id.equal chain_id) chains) in
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let in_protocols block =
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match q#protocols with
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| [] -> Lwt.return_true
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| protocols ->
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State.Block.predecessor block >>= function
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| None -> Lwt.return_false (* won't happen *)
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| Some pred ->
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State.Block.context pred >>= fun context ->
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Context.get_protocol context >>= fun protocol ->
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Lwt.return (List.exists (Protocol_hash.equal protocol) protocols) in
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let in_next_protocols block =
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match q#next_protocols with
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| [] -> Lwt.return_true
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| protocols ->
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State.Block.context block >>= fun context ->
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Context.get_protocol context >>= fun next_protocol ->
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Lwt.return (List.exists (Protocol_hash.equal next_protocol) protocols) in
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let stream =
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Lwt_stream.filter_map_s
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(fun block ->
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in_chains block >>= fun in_chains ->
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in_next_protocols block >>= fun in_next_protocols ->
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in_protocols block >>= fun in_protocols ->
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if in_chains && in_protocols && in_next_protocols then
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Lwt.return_some
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(State.Block.chain_id block, State.Block.hash block)
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else
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Lwt.return_none)
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block_stream in
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let next () = Lwt_stream.get stream in
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RPC_answer.return_stream { next ; shutdown }
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end ;
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gen_register1 Monitor_services.S.heads begin fun chain q () ->
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(* TODO: when `chain = `Test`, should we reset then stream when
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the `testnet` change, or dias we currently do ?? *)
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Chain_directory.get_chain state chain >>= fun chain ->
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Validator.get_exn validator (State.Chain.id chain) >>= fun chain_validator ->
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let block_stream, stopper = Chain_validator.new_head_watcher chain_validator in
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Chain.head chain >>= fun head ->
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let shutdown () = Lwt_watcher.shutdown stopper in
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let in_next_protocols block =
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match q#next_protocols with
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| [] -> Lwt.return_true
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| protocols ->
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State.Block.context block >>= fun context ->
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Context.get_protocol context >>= fun next_protocol ->
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Lwt.return (List.exists (Protocol_hash.equal next_protocol) protocols) in
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let stream =
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Lwt_stream.filter_map_s
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(fun block ->
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in_next_protocols block >>= fun in_next_protocols ->
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if in_next_protocols then
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Lwt.return_some (State.Block.hash block)
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else
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Lwt.return_none)
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block_stream in
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let first_call = ref true in
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let next () =
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if !first_call then begin
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first_call := false ; Lwt.return_some (State.Block.hash head)
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end else
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Lwt_stream.get stream in
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RPC_answer.return_stream { next ; shutdown }
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end ;
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!dir
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