85 lines
3.1 KiB
OCaml
85 lines
3.1 KiB
OCaml
(**************************************************************************)
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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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open Proto_alpha
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open Alpha_context
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type block_info = {
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hash: Block_hash.t ;
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chain_id: Chain_id.t ;
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predecessor: Block_hash.t ;
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fitness: MBytes.t list ;
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timestamp: Time.t ;
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protocol: Protocol_hash.t ;
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level: Level.t ;
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}
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let convert_block_info cctxt
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( { hash ; chain_id ; predecessor ; fitness ; timestamp ; protocol }
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: Block_services.block_info ) =
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Alpha_services.Context.level cctxt (`Hash (hash, 0)) >>= function
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| Ok level ->
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Lwt.return
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(Some { hash ; chain_id ; predecessor ;
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fitness ; timestamp ; protocol ; level })
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| Error _ ->
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(* TODO log error *)
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Lwt.return_none
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let convert_block_info_err cctxt
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( { hash ; chain_id ; predecessor ; fitness ; timestamp ; protocol }
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: Block_services.block_info ) =
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Alpha_services.Context.level cctxt (`Hash (hash, 0)) >>=? fun level ->
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return { hash ; chain_id ; predecessor ; fitness ; timestamp ; protocol ; level }
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let info cctxt ?include_ops block =
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Block_services.info cctxt ?include_ops block >>=? fun block ->
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convert_block_info_err cctxt block
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let compare (bi1 : block_info) (bi2 : block_info) =
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match Fitness.compare bi1.fitness bi2.fitness with
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| 0 -> begin
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match compare bi1.level bi2.level with
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| 0 -> begin
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match Time.compare bi1.timestamp bi2.timestamp with
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| 0 -> Block_hash.compare bi1.predecessor bi2.predecessor
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| x -> - x
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end
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| x -> - x
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end
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| x -> x
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let sort_blocks cctxt ?(compare = compare) blocks =
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Lwt_list.filter_map_p (convert_block_info cctxt) blocks >|= fun blocks ->
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List.sort compare blocks
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let monitor cctxt
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?include_ops ?length ?heads ?delay
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?min_date ?min_heads ?compare () =
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Block_services.monitor
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?include_ops ?length ?heads ?delay ?min_date ?min_heads
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cctxt >>=? fun (block_stream, _stop) ->
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let convert blocks =
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sort_blocks cctxt ?compare (List.flatten blocks) >>= return in
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return (Lwt_stream.map_s convert block_stream)
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let blocks_from_cycle cctxt block cycle =
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Alpha_services.Context.level cctxt block >>=? fun level ->
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Alpha_services.Helpers.levels cctxt block cycle >>=? fun (first, last) ->
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let length = Int32.to_int (Raw_level.diff level.level first) in
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Block_services.predecessors cctxt block length >>=? fun blocks ->
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let blocks =
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List.remove
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(length - (1 + Int32.to_int (Raw_level.diff last first))) blocks in
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if Raw_level.(level.level = last) then
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Block_services.hash cctxt block >>=? fun last ->
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return (last :: blocks)
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else
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return blocks
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