148 lines
6.3 KiB
OCaml
148 lines
6.3 KiB
OCaml
(*****************************************************************************)
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(* *)
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(* Open Source License *)
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(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com> *)
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(* *)
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(* Permission is hereby granted, free of charge, to any person obtaining a *)
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(* copy of this software and associated documentation files (the "Software"),*)
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(* to deal in the Software without restriction, including without limitation *)
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(* the rights to use, copy, modify, merge, publish, distribute, sublicense, *)
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(* and/or sell copies of the Software, and to permit persons to whom the *)
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(* Software is furnished to do so, subject to the following conditions: *)
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(* *)
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(* The above copyright notice and this permission notice shall be included *)
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(* in all copies or substantial portions of the Software. *)
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(* *)
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(* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR*)
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(* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *)
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(* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *)
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(* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER*)
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(* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *)
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(* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *)
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(* DEALINGS IN THE SOFTWARE. *)
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(* *)
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(*****************************************************************************)
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let recorded_proposal_count_for_delegate ctxt proposer =
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Storage.Vote.Proposals_count.get_option ctxt proposer >>=? function
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| None -> return 0
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| Some count -> return count
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let record_proposal ctxt proposal proposer =
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recorded_proposal_count_for_delegate ctxt proposer >>=? fun count ->
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Storage.Vote.Proposals_count.init_set ctxt proposer (count + 1) >>= fun ctxt ->
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Storage.Vote.Proposals.add ctxt (proposal, proposer) >>= fun ctxt ->
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return ctxt
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let get_proposals ctxt =
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Storage.Vote.Proposals.fold ctxt
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~init:(ok Protocol_hash.Map.empty)
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~f:(fun (proposal, delegate) acc ->
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(* Assuming the same listings is used at votings *)
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Storage.Vote.Listings.get ctxt delegate >>=? fun weight ->
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Lwt.return begin acc >>? fun acc ->
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let previous =
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match Protocol_hash.Map.find_opt proposal acc with
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| None -> 0l
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| Some x -> x
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in
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ok (Protocol_hash.Map.add proposal (Int32.add weight previous) acc)
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end)
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let clear_proposals ctxt =
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Storage.Vote.Proposals_count.clear ctxt >>= fun ctxt ->
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Storage.Vote.Proposals.clear ctxt
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type ballots = {
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yay: int32 ;
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nay: int32 ;
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pass: int32 ;
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}
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let ballots_encoding =
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let open Data_encoding in
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conv
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(fun { yay ; nay ; pass } -> ( yay , nay , pass ))
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(fun ( yay , nay , pass ) -> { yay ; nay ; pass })
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@@ obj3
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(req "yay" int32)
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(req "nay" int32)
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(req "pass" int32)
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let has_recorded_ballot = Storage.Vote.Ballots.mem
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let record_ballot = Storage.Vote.Ballots.init
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let get_ballots ctxt =
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Storage.Vote.Ballots.fold ctxt
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~f:(fun delegate ballot (ballots: ballots tzresult) ->
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(* Assuming the same listings is used at votings *)
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Storage.Vote.Listings.get ctxt delegate >>=? fun weight ->
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let count = Int32.add weight in
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Lwt.return begin
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ballots >>? fun ballots ->
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match ballot with
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| Yay -> ok { ballots with yay = count ballots.yay }
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| Nay -> ok { ballots with nay = count ballots.nay }
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| Pass -> ok { ballots with pass = count ballots.pass }
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end)
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~init:(ok { yay = 0l ; nay = 0l; pass = 0l })
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let get_ballot_list = Storage.Vote.Ballots.bindings
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let clear_ballots = Storage.Vote.Ballots.clear
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let listings_encoding =
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Data_encoding.(list (obj2
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(req "pkh" Signature.Public_key_hash.encoding)
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(req "rolls" int32)))
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let freeze_listings ctxt =
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Roll_storage.fold ctxt (ctxt, 0l)
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~f:(fun _roll delegate (ctxt, total) ->
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(* TODO use snapshots *)
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let delegate = Signature.Public_key.hash delegate in
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begin
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Storage.Vote.Listings.get_option ctxt delegate >>=? function
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| None -> return 0l
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| Some count -> return count
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end >>=? fun count ->
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Storage.Vote.Listings.init_set
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ctxt delegate (Int32.succ count) >>= fun ctxt ->
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return (ctxt, Int32.succ total)) >>=? fun (ctxt, total) ->
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Storage.Vote.Listings_size.init ctxt total >>=? fun ctxt ->
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return ctxt
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let listing_size = Storage.Vote.Listings_size.get
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let in_listings = Storage.Vote.Listings.mem
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let get_listings = Storage.Vote.Listings.bindings
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let clear_listings ctxt =
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Storage.Vote.Listings.clear ctxt >>= fun ctxt ->
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Storage.Vote.Listings_size.remove ctxt >>= fun ctxt ->
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return ctxt
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let get_current_period_kind = Storage.Vote.Current_period_kind.get
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let set_current_period_kind = Storage.Vote.Current_period_kind.set
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let get_current_quorum ctxt =
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Storage.Vote.Participation_ema.get ctxt >>=? fun participation_ema ->
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let quorum_min = Constants_storage.quorum_min ctxt in
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let quorum_max = Constants_storage.quorum_max ctxt in
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let quorum_diff = Int32.sub quorum_max quorum_min in
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return Int32.(add quorum_min
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(div (mul participation_ema quorum_diff) 100_00l))
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let get_participation_ema = Storage.Vote.Participation_ema.get
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let set_participation_ema = Storage.Vote.Participation_ema.set
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let get_current_proposal = Storage.Vote.Current_proposal.get
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let init_current_proposal = Storage.Vote.Current_proposal.init
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let clear_current_proposal = Storage.Vote.Current_proposal.delete
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let init ctxt =
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(* participation EMA is in centile of a percentage *)
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let participation_ema = Constants_storage.quorum_max ctxt in
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Storage.Vote.Participation_ema.init ctxt participation_ema >>=? fun ctxt ->
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Storage.Vote.Current_period_kind.init ctxt Proposal >>=? fun ctxt ->
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return ctxt
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