//! Includes traits for monitoring and receiving notifications of new blocks and block
//! disconnections, transaction broadcasting, and feerate information requests.
-use std::str::FromStr;
-use std::ffi::c_void;
+use alloc::str::FromStr;
+use core::ffi::c_void;
use core::convert::Infallible;
use bitcoin::hashes::Hash;
use crate::c_types::*;
+#[cfg(feature="no-std")]
+use alloc::{vec::Vec, boxed::Box};
/// An interface to send a transaction to the Bitcoin network.
#[repr(C)]
// We're essentially a pointer already, or at least a set of pointers, so allow us to be used
// directly as a Deref trait in higher-level structs:
-impl std::ops::Deref for BroadcasterInterface {
+impl core::ops::Deref for BroadcasterInterface {
type Target = Self;
fn deref(&self) -> &Self {
self
pub this_arg: *mut c_void,
/// Gets estimated satoshis of fee required per 1000 Weight-Units.
///
- /// Must be no smaller than 253 (ie 1 satoshi-per-byte rounded up to ensure later round-downs
- /// don't put us below 1 satoshi-per-byte).
+ /// Must return a value no smaller than 253 (ie 1 satoshi-per-byte rounded up to ensure later
+ /// round-downs don't put us below 1 satoshi-per-byte).
///
- /// This translates to:
- /// * satoshis-per-byte * 250
- /// * ceil(satoshis-per-kbyte / 4)
+ /// This method can be implemented with the following unit conversions:
+ /// * max(satoshis-per-byte * 250, 253)
+ /// * max(satoshis-per-kbyte / 4, 253)
#[must_use]
pub get_est_sat_per_1000_weight: extern "C" fn (this_arg: *const c_void, confirmation_target: crate::lightning::chain::chaininterface::ConfirmationTarget) -> u32,
/// Frees any resources associated with this object given its this_arg pointer.
// We're essentially a pointer already, or at least a set of pointers, so allow us to be used
// directly as a Deref trait in higher-level structs:
-impl std::ops::Deref for FeeEstimator {
+impl core::ops::Deref for FeeEstimator {
type Target = Self;
fn deref(&self) -> &Self {
self