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1b5f4243d1
This PR removes sp-std crate from substrate/primitives sub-directories. For now crates that have `pub use` of sp-std or export macros that would necessitate users of the macros to `extern crate alloc` have been excluded from this PR. There should be no breaking changes in this PR. --------- Co-authored-by: Koute <koute@users.noreply.github.com>
53 lines
2.1 KiB
Rust
53 lines
2.1 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) Parity Technologies (UK) Ltd.
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// SPDX-License-Identifier: Apache-2.0
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//! Runtime API for querying mixnet configuration and registering mixnodes.
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use super::types::{Mixnode, MixnodesErr, SessionIndex, SessionStatus};
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use alloc::vec::Vec;
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sp_api::decl_runtime_apis! {
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/// API to query the mixnet session status and mixnode sets, and to register mixnodes.
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pub trait MixnetApi {
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/// Get the index and phase of the current session.
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fn session_status() -> SessionStatus;
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/// Get the mixnode set for the previous session.
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fn prev_mixnodes() -> Result<Vec<Mixnode>, MixnodesErr>;
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/// Get the mixnode set for the current session.
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fn current_mixnodes() -> Result<Vec<Mixnode>, MixnodesErr>;
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/// Try to register a mixnode for the next session.
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///
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/// If a registration extrinsic is submitted, `true` is returned. The caller should avoid
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/// calling `maybe_register` again for a few blocks, to give the submitted extrinsic a
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/// chance to get included.
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///
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/// With the above exception, `maybe_register` is designed to be called every block. Most
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/// of the time it will not do anything, for example:
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///
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/// - If it is not an appropriate time to submit a registration extrinsic.
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/// - If the local node has already registered a mixnode for the next session.
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/// - If the local node is not permitted to register a mixnode for the next session.
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///
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/// `session_index` should match `session_status().current_index`; if it does not, `false`
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/// is returned immediately.
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fn maybe_register(session_index: SessionIndex, mixnode: Mixnode) -> bool;
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}
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}
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