254 lines
9.9 KiB
OCaml
254 lines
9.9 KiB
OCaml
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(*****************************************************************************)
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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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(** {1 Errors} ****************************************************************)
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type error += Too_many_internal_operations (* `Permanent *)
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(** An internal storage error that should not happen *)
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type storage_error =
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| Incompatible_protocol_version of string
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| Missing_key of string list * [`Get | `Set | `Del | `Copy]
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| Existing_key of string list
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| Corrupted_data of string list
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type error += Storage_error of storage_error
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type error += Failed_to_parse_parameter of MBytes.t
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type error += Failed_to_decode_parameter of Data_encoding.json * string
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val storage_error: storage_error -> 'a tzresult Lwt.t
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(** {1 Abstract Context} **************************************************)
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(** Abstract view of the context.
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Includes a handle to the functional key-value database
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({!Context.t}) along with some in-memory values (gas, etc.). *)
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type t
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type context = t
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type root_context = t
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(** Retrieves the state of the database and gives its abstract view.
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It also returns wether this is the first block validated
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with this version of the protocol. *)
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val prepare:
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level: Int32.t ->
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timestamp: Time.t ->
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fitness: Fitness.t ->
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Context.t -> context tzresult Lwt.t
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type previous_protocol =
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| Genesis of Parameters_repr.t
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| Alpha_previous
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val prepare_first_block:
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level:int32 ->
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timestamp:Time.t ->
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fitness:Fitness.t ->
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Context.t -> (previous_protocol * context) tzresult Lwt.t
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val activate: context -> Protocol_hash.t -> t Lwt.t
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val fork_test_chain: context -> Protocol_hash.t -> Time.t -> t Lwt.t
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val register_resolvers:
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'a Base58.encoding -> (context -> string -> 'a list Lwt.t) -> unit
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(** Returns the state of the database resulting of operations on its
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abstract view *)
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val recover: context -> Context.t
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val current_level: context -> Level_repr.t
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val current_timestamp: context -> Time.t
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val current_fitness: context -> Int64.t
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val set_current_fitness: context -> Int64.t -> t
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val constants: context -> Constants_repr.parametric
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val patch_constants:
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context ->
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(Constants_repr.parametric -> Constants_repr.parametric) ->
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context Lwt.t
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val first_level: context -> Raw_level_repr.t
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(** Increment the current block fee stash that will be credited to baker's
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frozen_fees account at finalize_application *)
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val add_fees: context -> Tez_repr.t -> context tzresult Lwt.t
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(** Increment the current block reward stash that will be credited to baker's
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frozen_fees account at finalize_application *)
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val add_rewards: context -> Tez_repr.t -> context tzresult Lwt.t
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(** Increment the current block deposit stash for a specific delegate. All the
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delegates' frozen_deposit accounts are credited at finalize_application *)
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val add_deposit:
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context -> Signature.Public_key_hash.t -> Tez_repr.t -> context tzresult Lwt.t
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val get_fees: context -> Tez_repr.t
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val get_rewards: context -> Tez_repr.t
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val get_deposits: context -> Tez_repr.t Signature.Public_key_hash.Map.t
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type error += Gas_limit_too_high (* `Permanent *)
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val check_gas_limit: t -> Z.t -> unit tzresult
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val set_gas_limit: t -> Z.t -> t
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val set_gas_unlimited: t -> t
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val gas_level: t -> Gas_limit_repr.t
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val gas_consumed: since: t -> until: t -> Z.t
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val block_gas_level: t -> Z.t
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val init_storage_space_to_pay: t -> t
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val update_storage_space_to_pay: t -> Z.t -> t
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val update_allocated_contracts_count: t -> t
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val clear_storage_space_to_pay: t -> t * Z.t * int
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type error += Undefined_operation_nonce (* `Permanent *)
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val init_origination_nonce: t -> Operation_hash.t -> t
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val origination_nonce: t -> Contract_repr.origination_nonce tzresult
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val increment_origination_nonce: t -> (t * Contract_repr.origination_nonce) tzresult
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val unset_origination_nonce: t -> t
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(** {1 Generic accessors} *************************************************)
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type key = string list
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type value = MBytes.t
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(** All context manipulation functions. This signature is included
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as-is for direct context accesses, and used in {!Storage_functors}
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to provide restricted views to the context. *)
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module type T = sig
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type t
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type context = t
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(** Tells if the key is already defined as a value. *)
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val mem: context -> key -> bool Lwt.t
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(** Tells if the key is already defined as a directory. *)
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val dir_mem: context -> key -> bool Lwt.t
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(** Retrieve the value from the storage bucket ; returns a
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{!Storage_error Missing_key} if the key is not set. *)
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val get: context -> key -> value tzresult Lwt.t
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(** Retrieves the value from the storage bucket ; returns [None] if
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the data is not initialized. *)
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val get_option: context -> key -> value option Lwt.t
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(** Allocates the storage bucket and initializes it ; returns a
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{!Storage_error Existing_key} if the bucket exists. *)
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val init: context -> key -> value -> context tzresult Lwt.t
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(** Updates the content of the bucket ; returns a {!Storage_error
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Missing_key} if the value does not exists. *)
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val set: context -> key -> value -> context tzresult Lwt.t
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(** Allocates the data and initializes it with a value ; just
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updates it if the bucket exists. *)
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val init_set: context -> key -> value -> context Lwt.t
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(** When the value is [Some v], allocates the data and initializes
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it with [v] ; just updates it if the bucket exists. When the
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valus is [None], delete the storage bucket when the value ; does
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nothing if the bucket does not exists. *)
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val set_option: context -> key -> value option -> context Lwt.t
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(** Delete the storage bucket ; returns a {!Storage_error
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Missing_key} if the bucket does not exists. *)
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val delete: context -> key -> context tzresult Lwt.t
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(** Removes the storage bucket and its contents ; does nothing if the
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bucket does not exists. *)
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val remove: context -> key -> context Lwt.t
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(** Recursively removes all the storage buckets and contents ; does
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nothing if no bucket exists. *)
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val remove_rec: context -> key -> context Lwt.t
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val copy: context -> from:key -> to_:key -> context tzresult Lwt.t
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(** Iterator on all the items of a given directory. *)
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val fold:
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context -> key -> init:'a ->
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f:([ `Key of key | `Dir of key ] -> 'a -> 'a Lwt.t) ->
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'a Lwt.t
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(** Recursively list all subkeys of a given key. *)
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val keys: context -> key -> key list Lwt.t
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(** Recursive iterator on all the subkeys of a given key. *)
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val fold_keys:
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context -> key -> init:'a -> f:(key -> 'a -> 'a Lwt.t) -> 'a Lwt.t
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(** Internally used in {!Storage_functors} to escape from a view. *)
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val project: context -> root_context
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(** Internally used in {!Storage_functors} to retrieve a full key
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from partial key relative a view. *)
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val absolute_key: context -> key -> key
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(** Internally used in {!Storage_functors} to consume gas from
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within a view. *)
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val consume_gas: context -> Gas_limit_repr.cost -> context tzresult
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(** Check if consume_gas will fail *)
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val check_enough_gas: context -> Gas_limit_repr.cost -> unit tzresult
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val description: context Storage_description.t
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end
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include T with type t := t and type context := context
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(** Initialize the local nonce used for preventing a script to
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duplicate an internal operation to replay it. *)
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val reset_internal_nonce: context -> context
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(** Increments the internal operation nonce. *)
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val fresh_internal_nonce: context -> (context * int) tzresult
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(** Mark an internal operation nonce as taken. *)
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val record_internal_nonce: context -> int -> context
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(** Check is the internal operation nonce has been taken. *)
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val internal_nonce_already_recorded: context -> int -> bool
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(** Returns a map where to each endorser's pkh is associated the list of its
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endorsing slots (in decreasing order) for a given level. *)
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val allowed_endorsements:
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context ->
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(Signature.Public_key.t * int list * bool) Signature.Public_key_hash.Map.t
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(** Initializes the map of allowed endorsements, this function must only be
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called once. *)
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val init_endorsements:
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context ->
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(Signature.Public_key.t * int list * bool) Signature.Public_key_hash.Map.t ->
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context
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(** Marks an endorsment in the map as used. *)
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val record_endorsement:
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context -> Signature.Public_key_hash.t -> context
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