grin/core/src/genesis.rs
2017-10-10 00:09:06 +00:00

53 lines
1.6 KiB
Rust

// Copyright 2016 The Grin Developers
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//! Definition of the genesis block. Placeholder for now.
use time;
use core;
use consensus::MINIMUM_DIFFICULTY;
use core::hash::Hashed;
use core::target::Difficulty;
use global;
/// Genesis block definition. It has no rewards, no inputs, no outputs, no
/// fees and a height of zero.
pub fn genesis() -> core::Block {
let proof_size = global::proofsize();
let empty_hash = [].hash();
core::Block {
header: core::BlockHeader {
version: 1,
height: 0,
previous: core::hash::Hash([0xff; 32]),
timestamp: time::Tm {
tm_year: 1997 - 1900,
tm_mon: 7,
tm_mday: 4,
..time::empty_tm()
},
difficulty: Difficulty::from_num(MINIMUM_DIFFICULTY),
total_difficulty: Difficulty::from_num(MINIMUM_DIFFICULTY),
utxo_root: empty_hash,
range_proof_root: empty_hash,
kernel_root: empty_hash,
nonce: global::get_genesis_nonce(),
pow: core::Proof::zero(proof_size), // TODO get actual PoW solution
},
inputs: vec![],
outputs: vec![],
kernels: vec![],
}
}