Revision 2090c83eb9faf0f28a06802cc6daab6e7494a3f9 authored by Clément Hurlin on 27 August 2021, 08:32:30 UTC, committed by Marge Bot on 10 September 2021, 06:26:48 UTC
1 parent ba2ee9d
monitor_directory.ml
(*****************************************************************************)
(* *)
(* Open Source License *)
(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com> *)
(* Copyright (c) 2018-2021 Nomadic Labs, <contact@nomadic-labs.com> *)
(* *)
(* Permission is hereby granted, free of charge, to any person obtaining a *)
(* copy of this software and associated documentation files (the "Software"),*)
(* to deal in the Software without restriction, including without limitation *)
(* the rights to use, copy, modify, merge, publish, distribute, sublicense, *)
(* and/or sell copies of the Software, and to permit persons to whom the *)
(* Software is furnished to do so, subject to the following conditions: *)
(* *)
(* The above copyright notice and this permission notice shall be included *)
(* in all copies or substantial portions of the Software. *)
(* *)
(* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR*)
(* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *)
(* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *)
(* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER*)
(* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *)
(* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *)
(* DEALINGS IN THE SOFTWARE. *)
(* *)
(*****************************************************************************)
let build_rpc_directory validator mainchain_validator =
let distributed_db = Validator.distributed_db validator in
let store = Distributed_db.store distributed_db in
let dir : unit RPC_directory.t ref = ref RPC_directory.empty in
let gen_register0 s f =
dir := RPC_directory.gen_register !dir s (fun () p q -> f p q)
in
let gen_register1 s f =
dir := RPC_directory.gen_register !dir s (fun ((), a) p q -> f a p q)
in
gen_register0 Monitor_services.S.bootstrapped (fun () () ->
let (block_stream, stopper) =
Chain_validator.new_head_watcher mainchain_validator
in
let first_run = ref true in
let next () =
if !first_run then (
first_run := false ;
let chain_store = Chain_validator.chain_store mainchain_validator in
Store.Chain.current_head chain_store >>= fun head ->
let head_hash = Store.Block.hash head in
let head_header = Store.Block.header head in
Lwt.return_some (head_hash, head_header.shell.timestamp))
else
Lwt.pick
[
Lwt_stream.get block_stream
>|= Option.map (fun b ->
(Store.Block.hash b, Store.Block.timestamp b));
( Chain_validator.bootstrapped mainchain_validator >|= fun () ->
None );
]
in
let shutdown () = Lwt_watcher.shutdown stopper in
RPC_answer.return_stream {next; shutdown}) ;
gen_register0 Monitor_services.S.valid_blocks (fun q () ->
let (block_stream, stopper) = Store.global_block_watcher store in
let shutdown () = Lwt_watcher.shutdown stopper in
let in_chains (chain_store, _block) =
match q#chains with
| [] -> Lwt.return_true
| chains ->
let that_chain_id = Store.Chain.chain_id chain_store in
List.exists_p
(fun chain ->
Chain_directory.get_chain_id_opt store chain >|= function
| None -> false
| Some this_chain_id ->
Chain_id.equal this_chain_id that_chain_id)
chains
in
let in_protocols (chain_store, block) =
match q#protocols with
| [] -> Lwt.return_true
| protocols -> (
Store.Block.read_predecessor_opt chain_store block >>= function
| None -> Lwt.return_false (* won't happen *)
| Some pred ->
Store.Block.context_exn chain_store pred >>= fun context ->
Context.get_protocol context >>= fun protocol ->
Lwt.return
(List.exists (Protocol_hash.equal protocol) protocols))
in
let in_next_protocols (chain_store, block) =
match q#next_protocols with
| [] -> Lwt.return_true
| protocols ->
Store.Block.context_exn chain_store block >>= fun context ->
Context.get_protocol context >>= fun next_protocol ->
Lwt.return
(List.exists (Protocol_hash.equal next_protocol) protocols)
in
let stream =
Lwt_stream.filter_map_s
(fun ((chain_store, block) as elt) ->
in_chains elt >>= fun in_chains ->
in_next_protocols elt >>= fun in_next_protocols ->
in_protocols elt >>= fun in_protocols ->
if in_chains && in_protocols && in_next_protocols then
let chain_id = Store.Chain.chain_id chain_store in
Lwt.return_some
((chain_id, Store.Block.hash block), Store.Block.header block)
else Lwt.return_none)
block_stream
in
let next () = Lwt_stream.get stream in
RPC_answer.return_stream {next; shutdown}) ;
gen_register1 Monitor_services.S.heads (fun chain q () ->
(* TODO: when `chain = `Test`, should we reset then stream when
the `testnet` change, or dias we currently do ?? *)
Chain_directory.get_chain_store_exn store chain >>= fun chain_store ->
match Validator.get validator (Store.Chain.chain_id chain_store) with
| Error _ -> Lwt.fail Not_found
| Ok chain_validator ->
let (block_stream, stopper) =
Chain_validator.new_head_watcher chain_validator
in
Store.Chain.current_head chain_store >>= fun head ->
let shutdown () = Lwt_watcher.shutdown stopper in
let in_next_protocols block =
match q#next_protocols with
| [] -> Lwt.return_true
| protocols ->
Store.Block.context_exn chain_store block >>= fun context ->
Context.get_protocol context >>= fun next_protocol ->
Lwt.return
(List.exists (Protocol_hash.equal next_protocol) protocols)
in
let stream =
Lwt_stream.filter_map_s
(fun block ->
in_next_protocols block >>= fun in_next_protocols ->
if in_next_protocols then
Lwt.return_some
(Store.Block.hash block, Store.Block.header block)
else Lwt.return_none)
block_stream
in
in_next_protocols head >>= fun first_block_is_among_next_protocols ->
let first_call =
(* Skip the first block if this is false *)
ref first_block_is_among_next_protocols
in
let next () =
if !first_call then (
first_call := false ;
Lwt.return_some (Store.Block.hash head, Store.Block.header head))
else Lwt_stream.get stream
in
RPC_answer.return_stream {next; shutdown}) ;
gen_register0 Monitor_services.S.protocols (fun () () ->
let (stream, stopper) = Store.Protocol.protocol_watcher store in
let shutdown () = Lwt_watcher.shutdown stopper in
let next () = Lwt_stream.get stream in
RPC_answer.return_stream {next; shutdown}) ;
gen_register0 Monitor_services.S.commit_hash (fun () () ->
RPC_answer.return Tezos_version.Current_git_info.commit_hash) ;
gen_register0 Monitor_services.S.active_chains (fun () () ->
let (stream, stopper) = Validator.chains_watcher validator in
let shutdown () = Lwt_watcher.shutdown stopper in
let first_call =
(* Only notify the newly created chains if this is false *)
ref true
in
let next () =
let convert (chain_id, b) =
if not b then Lwt.return (Monitor_services.Stopping chain_id)
else if
Chain_id.equal
(Store.Chain.chain_id (Store.main_chain_store store))
chain_id
then Lwt.return (Monitor_services.Active_main chain_id)
else
Store.get_chain_store_opt store chain_id >>= function
| None -> Lwt.fail Not_found
| Some chain_store ->
let {Genesis.protocol; _} = Store.Chain.genesis chain_store in
let expiration_date =
WithExceptions.Option.to_exn_f
~none:(fun () ->
Invalid_argument
(Format.asprintf
"Monitor.active_chains: no expiration date for the \
chain %a"
Chain_id.pp
chain_id))
(Store.Chain.expiration chain_store)
in
Lwt.return
(Monitor_services.Active_test
{chain = chain_id; protocol; expiration_date})
in
if !first_call then (
first_call := false ;
List.map_p
(fun c -> convert (c, true))
(Validator.get_active_chains validator)
>>= fun l -> Lwt.return_some l)
else
Lwt_stream.get stream >>= function
| None -> Lwt.return_none
| Some c -> convert c >>= fun status -> Lwt.return_some [status]
in
RPC_answer.return_stream {next; shutdown}) ;
!dir
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