--- /dev/null
+// This file is Copyright its original authors, visible in version control
+// history and in the source files from which this was generated.
+//
+// This file is licensed under the license available in the LICENSE or LICENSE.md
+// file in the root of this repository or, if no such file exists, the same
+// license as that which applies to the original source files from which this
+// source was automatically generated.
+
+//! Traits and utility impls which allow other parts of rust-lightning to interact with the
+//! blockchain.
+//!
+//! Includes traits for monitoring and receiving notifications of new blocks and block
+//! disconnections, transaction broadcasting, and feerate information requests.
+
+use std::ffi::c_void;
+use bitcoin::hashes::Hash;
+use crate::c_types::*;
+
+/// An interface to send a transaction to the Bitcoin network.
+#[repr(C)]
+pub struct BroadcasterInterface {
+ /// An opaque pointer which is passed to your function implementations as an argument.
+ /// This has no meaning in the LDK, and can be NULL or any other value.
+ pub this_arg: *mut c_void,
+ /// Sends a transaction out to (hopefully) be mined.
+ pub broadcast_transaction: extern "C" fn (this_arg: *const c_void, tx: crate::c_types::Transaction),
+ /// Frees any resources associated with this object given its this_arg pointer.
+ /// Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
+ pub free: Option<extern "C" fn(this_arg: *mut c_void)>,
+}
+unsafe impl Sync for BroadcasterInterface {}
+unsafe impl Send for BroadcasterInterface {}
+
+use lightning::chain::chaininterface::BroadcasterInterface as rustBroadcasterInterface;
+impl rustBroadcasterInterface for BroadcasterInterface {
+ fn broadcast_transaction(&self, tx: &bitcoin::blockdata::transaction::Transaction) {
+ let mut local_tx = ::bitcoin::consensus::encode::serialize(tx);
+ (self.broadcast_transaction)(self.this_arg, crate::c_types::Transaction::from_vec(local_tx))
+ }
+}
+
+// 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 {
+ type Target = Self;
+ fn deref(&self) -> &Self {
+ self
+ }
+}
+/// Calls the free function if one is set
+#[no_mangle]
+pub extern "C" fn BroadcasterInterface_free(this_ptr: BroadcasterInterface) { }
+impl Drop for BroadcasterInterface {
+ fn drop(&mut self) {
+ if let Some(f) = self.free {
+ f(self.this_arg);
+ }
+ }
+}
+/// An enum that represents the speed at which we want a transaction to confirm used for feerate
+/// estimation.
+#[must_use]
+#[derive(Clone)]
+#[repr(C)]
+pub enum ConfirmationTarget {
+ /// We are happy with this transaction confirming slowly when feerate drops some.
+ Background,
+ /// We'd like this transaction to confirm without major delay, but 12-18 blocks is fine.
+ Normal,
+ /// We'd like this transaction to confirm in the next few blocks.
+ HighPriority,
+}
+use lightning::chain::chaininterface::ConfirmationTarget as nativeConfirmationTarget;
+impl ConfirmationTarget {
+ #[allow(unused)]
+ pub(crate) fn to_native(&self) -> nativeConfirmationTarget {
+ match self {
+ ConfirmationTarget::Background => nativeConfirmationTarget::Background,
+ ConfirmationTarget::Normal => nativeConfirmationTarget::Normal,
+ ConfirmationTarget::HighPriority => nativeConfirmationTarget::HighPriority,
+ }
+ }
+ #[allow(unused)]
+ pub(crate) fn into_native(self) -> nativeConfirmationTarget {
+ match self {
+ ConfirmationTarget::Background => nativeConfirmationTarget::Background,
+ ConfirmationTarget::Normal => nativeConfirmationTarget::Normal,
+ ConfirmationTarget::HighPriority => nativeConfirmationTarget::HighPriority,
+ }
+ }
+ #[allow(unused)]
+ pub(crate) fn from_native(native: &nativeConfirmationTarget) -> Self {
+ match native {
+ nativeConfirmationTarget::Background => ConfirmationTarget::Background,
+ nativeConfirmationTarget::Normal => ConfirmationTarget::Normal,
+ nativeConfirmationTarget::HighPriority => ConfirmationTarget::HighPriority,
+ }
+ }
+ #[allow(unused)]
+ pub(crate) fn native_into(native: nativeConfirmationTarget) -> Self {
+ match native {
+ nativeConfirmationTarget::Background => ConfirmationTarget::Background,
+ nativeConfirmationTarget::Normal => ConfirmationTarget::Normal,
+ nativeConfirmationTarget::HighPriority => ConfirmationTarget::HighPriority,
+ }
+ }
+}
+/// Creates a copy of the ConfirmationTarget
+#[no_mangle]
+pub extern "C" fn ConfirmationTarget_clone(orig: &ConfirmationTarget) -> ConfirmationTarget {
+ orig.clone()
+}
+/// A trait which should be implemented to provide feerate information on a number of time
+/// horizons.
+///
+/// Note that all of the functions implemented here *must* be reentrant-safe (obviously - they're
+/// called from inside the library in response to chain events, P2P events, or timer events).
+#[repr(C)]
+pub struct FeeEstimator {
+ /// An opaque pointer which is passed to your function implementations as an argument.
+ /// This has no meaning in the LDK, and can be NULL or any other value.
+ 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).
+ ///
+ /// This translates to:
+ /// * satoshis-per-byte * 250
+ /// * ceil(satoshis-per-kbyte / 4)
+ #[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.
+ /// Does not need to free the outer struct containing function pointers and may be NULL is no resources need to be freed.
+ pub free: Option<extern "C" fn(this_arg: *mut c_void)>,
+}
+unsafe impl Sync for FeeEstimator {}
+unsafe impl Send for FeeEstimator {}
+
+use lightning::chain::chaininterface::FeeEstimator as rustFeeEstimator;
+impl rustFeeEstimator for FeeEstimator {
+ fn get_est_sat_per_1000_weight(&self, confirmation_target: lightning::chain::chaininterface::ConfirmationTarget) -> u32 {
+ let mut ret = (self.get_est_sat_per_1000_weight)(self.this_arg, crate::lightning::chain::chaininterface::ConfirmationTarget::native_into(confirmation_target));
+ ret
+ }
+}
+
+// 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 {
+ type Target = Self;
+ fn deref(&self) -> &Self {
+ self
+ }
+}
+/// Calls the free function if one is set
+#[no_mangle]
+pub extern "C" fn FeeEstimator_free(this_ptr: FeeEstimator) { }
+impl Drop for FeeEstimator {
+ fn drop(&mut self) {
+ if let Some(f) = self.free {
+ f(self.this_arg);
+ }
+ }
+}
+/// Minimum relay fee as required by bitcoin network mempool policy.
+
+#[no_mangle]
+pub static MIN_RELAY_FEE_SAT_PER_1000_WEIGHT: u64 = lightning::chain::chaininterface::MIN_RELAY_FEE_SAT_PER_1000_WEIGHT;
projects / ldk-c-bindings / blobdiff