lightning 0.2.2

A Complete Bitcoin Lightning Library in Rust. Handles the core functionality of the Lightning Network, allowing clients to implement custom wallet, chain interactions, storage and network logic without enforcing a specific runtime.
Documentation
// This file is Copyright its original authors, visible in version control
// history.
//
// This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
// or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
// You may not use this file except in accordance with one or both of these
// licenses.

#![crate_name = "lightning"]

//! Rust-Lightning, not Rusty's Lightning!
//!
//! A full-featured but also flexible lightning implementation, in library form. This allows the
//! user (you) to decide how they wish to use it instead of being a fully self-contained daemon.
//! This means there is no built-in threading/execution environment and it's up to the user to
//! figure out how best to make networking happen/timers fire/things get written to disk/keys get
//! generated/etc. This makes it a good candidate for tight integration into an existing wallet
//! instead of having a rather-separate lightning appendage to a wallet.
//!
//! `default` features are:
//!
//! * `std` - enables functionalities which require `std`, including `std::io` trait implementations and things which utilize time
//! * `grind_signatures` - enables generation of [low-r bitcoin signatures](https://bitcoin.stackexchange.com/questions/111660/what-is-signature-grinding),
//! which saves 1 byte per signature in 50% of the cases (see [bitcoin PR #13666](https://github.com/bitcoin/bitcoin/pull/13666))
//!
//! Available features are:
//!
//! * `std`
//! * `grind_signatures`

#![cfg_attr(not(any(test, fuzzing, feature = "_test_utils")), deny(missing_docs))]
#![deny(rustdoc::broken_intra_doc_links)]
#![deny(rustdoc::private_intra_doc_links)]
// In general, rust is absolutely horrid at supporting users doing things like,
// for example, compiling Rust code for real environments. Disable useless lints
// that don't do anything but annoy us and cant actually ever be resolved.
#![allow(bare_trait_objects)]
#![allow(ellipsis_inclusive_range_patterns)]
#![cfg_attr(docsrs, feature(doc_cfg))]
#![cfg_attr(all(not(feature = "std"), not(test)), no_std)]

#[cfg(all(fuzzing, test))]
compile_error!("Tests will always fail with cfg=fuzzing");

#[macro_use]
extern crate alloc;

pub extern crate lightning_types as types;

pub extern crate bitcoin;

pub extern crate lightning_invoice as bolt11_invoice;

#[cfg(any(test, feature = "std"))]
extern crate core;

#[cfg(any(test, feature = "_test_utils"))]
extern crate regex;

#[cfg(not(feature = "std"))]
extern crate libm;

#[cfg(ldk_bench)]
extern crate criterion;

#[cfg(all(feature = "std", test))]
extern crate parking_lot;

#[macro_use]
pub mod util;

pub mod blinded_path;
pub mod chain;
pub mod events;
pub mod ln;
pub mod offers;
pub mod onion_message;
pub mod routing;
pub mod sign;

pub(crate) mod crypto;

/// Extension of the bitcoin::io module
pub mod io;

#[doc(hidden)]
/// IO utilities public only for use by in-crate macros. These should not be used externally
///
/// This is not exported to bindings users as it is not intended for public consumption.
pub mod io_extras {
	use bitcoin::io::{self, Read, Write};

	/// Creates an instance of a writer which will successfully consume all data.
	pub use bitcoin::io::sink;

	pub fn copy<R: ?Sized, W: ?Sized>(reader: &mut R, writer: &mut W) -> Result<u64, io::Error>
	where
		R: Read,
		W: Write,
	{
		let mut count = 0;
		let mut buf = [0u8; 64];

		loop {
			match reader.read(&mut buf) {
				Ok(0) => break,
				Ok(n) => {
					writer.write_all(&buf[0..n])?;
					count += n as u64;
				},
				Err(ref e) if e.kind() == io::ErrorKind::Interrupted => {},
				Err(e) => return Err(e.into()),
			};
		}
		Ok(count)
	}

	pub fn read_to_end<D: Read>(d: &mut D) -> Result<alloc::vec::Vec<u8>, io::Error> {
		let mut result = vec![];
		let mut buf = [0u8; 64];
		loop {
			match d.read(&mut buf) {
				Ok(0) => break,
				Ok(n) => result.extend_from_slice(&buf[0..n]),
				Err(ref e) if e.kind() == io::ErrorKind::Interrupted => {},
				Err(e) => return Err(e.into()),
			};
		}
		Ok(result)
	}
}

mod prelude {
	#![allow(unused_imports)]

	pub use alloc::{boxed::Box, collections::VecDeque, string::String, vec, vec::Vec};

	pub use alloc::borrow::ToOwned;
	pub use alloc::string::ToString;

	pub use core::convert::{AsMut, AsRef, TryFrom, TryInto};
	pub use core::default::Default;
	pub use core::marker::Sized;

	pub(crate) use crate::util::hash_tables::*;
}

#[cfg(all(not(ldk_bench), feature = "backtrace", feature = "std", test))]
extern crate backtrace;

mod sync;

#[cfg(feature = "_externalize_tests")]
lightning_macros::xtest_inventory!();