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791d2355ee
With the coinbase receiver daemon in place, when starting a Grin server in mining mode, the miner will now ask the receiver for a coinbase output. The output is then used to insert in a block when successfully mined.
46 lines
1.5 KiB
Rust
46 lines
1.5 KiB
Rust
// Copyright 2016 The Grin Developers
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//
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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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/// Implements hex-encoding from bytes to string and decoding of strings
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/// to bytes. Given that rustc-serialize is deprecated and serde doesn't
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/// provide easy hex encoding, hex is a bit in limbo right now in Rust-
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/// land. It's simple enough that we can just have our own.
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use std::fmt::Write;
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use std::num;
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/// Encode the provided bytes into a hex string
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pub fn to_hex(bytes: Vec<u8>) -> String {
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let mut s = String::new();
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for byte in bytes {
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write!(&mut s, "{:02X}", byte).expect("Unable to write");
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}
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s
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}
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/// Decode a hex string into bytes.
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pub fn from_hex(hex_str: String) -> Result<Vec<u8>, num::ParseIntError> {
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let hex_trim = if &hex_str[..2] == "0x" {
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hex_str[2..].to_owned()
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} else {
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hex_str.clone()
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};
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split_n(&hex_trim.trim()[..], 2).iter()
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.map(|b| u8::from_str_radix(b, 16))
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.collect::<Result<Vec<u8>, _>>()
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}
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fn split_n(s: &str, n: usize) -> Vec<&str> {
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(0 .. (s.len() - n + 1)/2 + 1).map(|i| &s[2*i .. 2*i + n]).collect()
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}
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