Merge pull request #690 from TheBlueMatt/2020-09-633-bindings

[rust-lightning] / lightning-c-bindings / src / ln / channelmanager.rs

//! The top-level channel management and payment tracking stuff lives here.
//!
//! The ChannelManager is the main chunk of logic implementing the lightning protocol and is
//! responsible for tracking which channels are open, HTLCs are in flight and reestablishing those
//! upon reconnect to the relevant peer(s).
//!
//! It does not manage routing logic (see routing::router::get_route for that) nor does it manage constructing
//! on-chain transactions (it only monitors the chain to watch for any force-closes that might
//! imply it needs to fail HTLCs/payments/channels it manages).

use std::ffi::c_void;
use bitcoin::hashes::Hash;
use crate::c_types::*;


use lightning::ln::channelmanager::ChannelManager as nativeChannelManagerImport;
type nativeChannelManager = nativeChannelManagerImport<crate::chain::keysinterface::ChannelKeys, crate::ln::channelmonitor::ManyChannelMonitor, crate::chain::chaininterface::BroadcasterInterface, crate::chain::keysinterface::KeysInterface, crate::chain::chaininterface::FeeEstimator, crate::util::logger::Logger>;

/// Manager which keeps track of a number of channels and sends messages to the appropriate
/// channel, also tracking HTLC preimages and forwarding onion packets appropriately.
///
/// Implements ChannelMessageHandler, handling the multi-channel parts and passing things through
/// to individual Channels.
///
/// Implements Writeable to write out all channel state to disk. Implies peer_disconnected() for
/// all peers during write/read (though does not modify this instance, only the instance being
/// serialized). This will result in any channels which have not yet exchanged funding_created (ie
/// called funding_transaction_generated for outbound channels).
///
/// Note that you can be a bit lazier about writing out ChannelManager than you can be with
/// ChannelMonitors. With ChannelMonitors you MUST write each monitor update out to disk before
/// returning from ManyChannelMonitor::add_/update_monitor, with ChannelManagers, writing updates
/// happens out-of-band (and will prevent any other ChannelManager operations from occurring during
/// the serialization process). If the deserialized version is out-of-date compared to the
/// ChannelMonitors passed by reference to read(), those channels will be force-closed based on the
/// ChannelMonitor state and no funds will be lost (mod on-chain transaction fees).
///
/// Note that the deserializer is only implemented for (Sha256dHash, ChannelManager), which
/// tells you the last block hash which was block_connect()ed. You MUST rescan any blocks along
/// the \"reorg path\" (ie call block_disconnected() until you get to a common block and then call
/// block_connected() to step towards your best block) upon deserialization before using the
/// object!
///
/// Note that ChannelManager is responsible for tracking liveness of its channels and generating
/// ChannelUpdate messages informing peers that the channel is temporarily disabled. To avoid
/// spam due to quick disconnection/reconnection, updates are not sent until the channel has been
/// offline for a full minute. In order to track this, you must call
/// timer_chan_freshness_every_min roughly once per minute, though it doesn't have to be perfect.
///
/// Rather than using a plain ChannelManager, it is preferable to use either a SimpleArcChannelManager
/// a SimpleRefChannelManager, for conciseness. See their documentation for more details, but
/// essentially you should default to using a SimpleRefChannelManager, and use a
/// SimpleArcChannelManager when you require a ChannelManager with a static lifetime, such as when
/// you're using lightning-net-tokio.
#[must_use]
#[repr(C)]
pub struct ChannelManager {
        /// Nearly everyhwere, inner must be non-null, however in places where
        /// the Rust equivalent takes an Option, it may be set to null to indicate None.
        pub inner: *mut nativeChannelManager,
        pub is_owned: bool,
}

impl Drop for ChannelManager {
        fn drop(&mut self) {
                if self.is_owned && !self.inner.is_null() {
                        let _ = unsafe { Box::from_raw(self.inner) };
                }
        }
}
#[no_mangle]
pub extern "C" fn ChannelManager_free(this_ptr: ChannelManager) { }
#[allow(unused)]
/// Used only if an object of this type is returned as a trait impl by a method
extern "C" fn ChannelManager_free_void(this_ptr: *mut c_void) {
        unsafe { let _ = Box::from_raw(this_ptr as *mut nativeChannelManager); }
}
#[allow(unused)]
/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
impl ChannelManager {
        pub(crate) fn take_ptr(mut self) -> *mut nativeChannelManager {
                assert!(self.is_owned);
                let ret = self.inner;
                self.inner = std::ptr::null_mut();
                ret
        }
}

use lightning::ln::channelmanager::ChannelDetails as nativeChannelDetailsImport;
type nativeChannelDetails = nativeChannelDetailsImport;

/// Details of a channel, as returned by ChannelManager::list_channels and ChannelManager::list_usable_channels
#[must_use]
#[repr(C)]
pub struct ChannelDetails {
        /// Nearly everyhwere, inner must be non-null, however in places where
        /// the Rust equivalent takes an Option, it may be set to null to indicate None.
        pub inner: *mut nativeChannelDetails,
        pub is_owned: bool,
}

impl Drop for ChannelDetails {
        fn drop(&mut self) {
                if self.is_owned && !self.inner.is_null() {
                        let _ = unsafe { Box::from_raw(self.inner) };
                }
        }
}
#[no_mangle]
pub extern "C" fn ChannelDetails_free(this_ptr: ChannelDetails) { }
#[allow(unused)]
/// Used only if an object of this type is returned as a trait impl by a method
extern "C" fn ChannelDetails_free_void(this_ptr: *mut c_void) {
        unsafe { let _ = Box::from_raw(this_ptr as *mut nativeChannelDetails); }
}
#[allow(unused)]
/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
impl ChannelDetails {
        pub(crate) fn take_ptr(mut self) -> *mut nativeChannelDetails {
                assert!(self.is_owned);
                let ret = self.inner;
                self.inner = std::ptr::null_mut();
                ret
        }
}
/// The channel's ID (prior to funding transaction generation, this is a random 32 bytes,
/// thereafter this is the txid of the funding transaction xor the funding transaction output).
/// Note that this means this value is *not* persistent - it can change once during the
/// lifetime of the channel.
#[no_mangle]
pub extern "C" fn ChannelDetails_get_channel_id(this_ptr: &ChannelDetails) -> *const [u8; 32] {
        let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.channel_id;
        &(*inner_val)
}
/// The channel's ID (prior to funding transaction generation, this is a random 32 bytes,
/// thereafter this is the txid of the funding transaction xor the funding transaction output).
/// Note that this means this value is *not* persistent - it can change once during the
/// lifetime of the channel.
#[no_mangle]
pub extern "C" fn ChannelDetails_set_channel_id(this_ptr: &mut ChannelDetails, mut val: crate::c_types::ThirtyTwoBytes) {
        unsafe { &mut *this_ptr.inner }.channel_id = val.data;
}
/// The node_id of our counterparty
#[no_mangle]
pub extern "C" fn ChannelDetails_get_remote_network_id(this_ptr: &ChannelDetails) -> crate::c_types::PublicKey {
        let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.remote_network_id;
        crate::c_types::PublicKey::from_rust(&(*inner_val))
}
/// The node_id of our counterparty
#[no_mangle]
pub extern "C" fn ChannelDetails_set_remote_network_id(this_ptr: &mut ChannelDetails, mut val: crate::c_types::PublicKey) {
        unsafe { &mut *this_ptr.inner }.remote_network_id = val.into_rust();
}
/// The Features the channel counterparty provided upon last connection.
/// Useful for routing as it is the most up-to-date copy of the counterparty's features and
/// many routing-relevant features are present in the init context.
#[no_mangle]
pub extern "C" fn ChannelDetails_get_counterparty_features(this_ptr: &ChannelDetails) -> crate::ln::features::InitFeatures {
        let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.counterparty_features;
        crate::ln::features::InitFeatures { inner: &mut (*inner_val), is_owned: false }
}
/// The Features the channel counterparty provided upon last connection.
/// Useful for routing as it is the most up-to-date copy of the counterparty's features and
/// many routing-relevant features are present in the init context.
#[no_mangle]
pub extern "C" fn ChannelDetails_set_counterparty_features(this_ptr: &mut ChannelDetails, mut val: crate::ln::features::InitFeatures) {
        unsafe { &mut *this_ptr.inner }.counterparty_features = *unsafe { Box::from_raw(val.take_ptr()) };
}
/// The value, in satoshis, of this channel as appears in the funding output
#[no_mangle]
pub extern "C" fn ChannelDetails_get_channel_value_satoshis(this_ptr: &ChannelDetails) -> u64 {
        let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.channel_value_satoshis;
        (*inner_val)
}
/// The value, in satoshis, of this channel as appears in the funding output
#[no_mangle]
pub extern "C" fn ChannelDetails_set_channel_value_satoshis(this_ptr: &mut ChannelDetails, mut val: u64) {
        unsafe { &mut *this_ptr.inner }.channel_value_satoshis = val;
}
/// The user_id passed in to create_channel, or 0 if the channel was inbound.
#[no_mangle]
pub extern "C" fn ChannelDetails_get_user_id(this_ptr: &ChannelDetails) -> u64 {
        let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.user_id;
        (*inner_val)
}
/// The user_id passed in to create_channel, or 0 if the channel was inbound.
#[no_mangle]
pub extern "C" fn ChannelDetails_set_user_id(this_ptr: &mut ChannelDetails, mut val: u64) {
        unsafe { &mut *this_ptr.inner }.user_id = val;
}
/// The available outbound capacity for sending HTLCs to the remote peer. This does not include
/// any pending HTLCs which are not yet fully resolved (and, thus, who's balance is not
/// available for inclusion in new outbound HTLCs). This further does not include any pending
/// outgoing HTLCs which are awaiting some other resolution to be sent.
#[no_mangle]
pub extern "C" fn ChannelDetails_get_outbound_capacity_msat(this_ptr: &ChannelDetails) -> u64 {
        let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.outbound_capacity_msat;
        (*inner_val)
}
/// The available outbound capacity for sending HTLCs to the remote peer. This does not include
/// any pending HTLCs which are not yet fully resolved (and, thus, who's balance is not
/// available for inclusion in new outbound HTLCs). This further does not include any pending
/// outgoing HTLCs which are awaiting some other resolution to be sent.
#[no_mangle]
pub extern "C" fn ChannelDetails_set_outbound_capacity_msat(this_ptr: &mut ChannelDetails, mut val: u64) {
        unsafe { &mut *this_ptr.inner }.outbound_capacity_msat = val;
}
/// The available inbound capacity for the remote peer to send HTLCs to us. This does not
/// include any pending HTLCs which are not yet fully resolved (and, thus, who's balance is not
/// available for inclusion in new inbound HTLCs).
/// Note that there are some corner cases not fully handled here, so the actual available
/// inbound capacity may be slightly higher than this.
#[no_mangle]
pub extern "C" fn ChannelDetails_get_inbound_capacity_msat(this_ptr: &ChannelDetails) -> u64 {
        let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.inbound_capacity_msat;
        (*inner_val)
}
/// The available inbound capacity for the remote peer to send HTLCs to us. This does not
/// include any pending HTLCs which are not yet fully resolved (and, thus, who's balance is not
/// available for inclusion in new inbound HTLCs).
/// Note that there are some corner cases not fully handled here, so the actual available
/// inbound capacity may be slightly higher than this.
#[no_mangle]
pub extern "C" fn ChannelDetails_set_inbound_capacity_msat(this_ptr: &mut ChannelDetails, mut val: u64) {
        unsafe { &mut *this_ptr.inner }.inbound_capacity_msat = val;
}
/// True if the channel is (a) confirmed and funding_locked messages have been exchanged, (b)
/// the peer is connected, and (c) no monitor update failure is pending resolution.
#[no_mangle]
pub extern "C" fn ChannelDetails_get_is_live(this_ptr: &ChannelDetails) -> bool {
        let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.is_live;
        (*inner_val)
}
/// True if the channel is (a) confirmed and funding_locked messages have been exchanged, (b)
/// the peer is connected, and (c) no monitor update failure is pending resolution.
#[no_mangle]
pub extern "C" fn ChannelDetails_set_is_live(this_ptr: &mut ChannelDetails, mut val: bool) {
        unsafe { &mut *this_ptr.inner }.is_live = val;
}

use lightning::ln::channelmanager::PaymentSendFailure as nativePaymentSendFailureImport;
type nativePaymentSendFailure = nativePaymentSendFailureImport;

/// If a payment fails to send, it can be in one of several states. This enum is returned as the
/// Err() type describing which state the payment is in, see the description of individual enum
/// states for more.
#[must_use]
#[repr(C)]
pub struct PaymentSendFailure {
        /// Nearly everyhwere, inner must be non-null, however in places where
        /// the Rust equivalent takes an Option, it may be set to null to indicate None.
        pub inner: *mut nativePaymentSendFailure,
        pub is_owned: bool,
}

impl Drop for PaymentSendFailure {
        fn drop(&mut self) {
                if self.is_owned && !self.inner.is_null() {
                        let _ = unsafe { Box::from_raw(self.inner) };
                }
        }
}
#[no_mangle]
pub extern "C" fn PaymentSendFailure_free(this_ptr: PaymentSendFailure) { }
#[allow(unused)]
/// Used only if an object of this type is returned as a trait impl by a method
extern "C" fn PaymentSendFailure_free_void(this_ptr: *mut c_void) {
        unsafe { let _ = Box::from_raw(this_ptr as *mut nativePaymentSendFailure); }
}
#[allow(unused)]
/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
impl PaymentSendFailure {
        pub(crate) fn take_ptr(mut self) -> *mut nativePaymentSendFailure {
                assert!(self.is_owned);
                let ret = self.inner;
                self.inner = std::ptr::null_mut();
                ret
        }
}
/// Constructs a new ChannelManager to hold several channels and route between them.
///
/// This is the main \"logic hub\" for all channel-related actions, and implements
/// ChannelMessageHandler.
///
/// Non-proportional fees are fixed according to our risk using the provided fee estimator.
///
/// panics if channel_value_satoshis is >= `MAX_FUNDING_SATOSHIS`!
///
/// Users must provide the current blockchain height from which to track onchain channel
/// funding outpoints and send payments with reliable timelocks.
///
/// Users need to notify the new ChannelManager when a new block is connected or
/// disconnected using its `block_connected` and `block_disconnected` methods.
/// However, rather than calling these methods directly, the user should register
/// the ChannelManager as a listener to the BlockNotifier and call the BlockNotifier's
/// `block_(dis)connected` methods, which will notify all registered listeners in one
/// go.
#[must_use]
#[no_mangle]
pub extern "C" fn ChannelManager_new(mut network: crate::bitcoin::network::Network, mut fee_est: crate::chain::chaininterface::FeeEstimator, mut monitor: crate::ln::channelmonitor::ManyChannelMonitor, mut tx_broadcaster: crate::chain::chaininterface::BroadcasterInterface, mut logger: crate::util::logger::Logger, mut keys_manager: crate::chain::keysinterface::KeysInterface, mut config: crate::util::config::UserConfig, mut current_blockchain_height: usize) -> ChannelManager {
        let mut ret = lightning::ln::channelmanager::ChannelManager::new(network.into_bitcoin(), fee_est, monitor, tx_broadcaster, logger, keys_manager, *unsafe { Box::from_raw(config.take_ptr()) }, current_blockchain_height);
        ChannelManager { inner: Box::into_raw(Box::new(ret)), is_owned: true }
}

/// Creates a new outbound channel to the given remote node and with the given value.
///
/// user_id will be provided back as user_channel_id in FundingGenerationReady and
/// FundingBroadcastSafe events to allow tracking of which events correspond with which
/// create_channel call. Note that user_channel_id defaults to 0 for inbound channels, so you
/// may wish to avoid using 0 for user_id here.
///
/// If successful, will generate a SendOpenChannel message event, so you should probably poll
/// PeerManager::process_events afterwards.
///
/// Raises APIError::APIMisuseError when channel_value_satoshis > 2**24 or push_msat is
/// greater than channel_value_satoshis * 1k or channel_value_satoshis is < 1000.
#[must_use]
#[no_mangle]
pub extern "C" fn ChannelManager_create_channel(this_arg: &ChannelManager, mut their_network_key: crate::c_types::PublicKey, mut channel_value_satoshis: u64, mut push_msat: u64, mut user_id: u64, mut override_config: crate::util::config::UserConfig) -> crate::c_types::derived::CResult_NoneAPIErrorZ {
        let mut local_override_config = if override_config.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(override_config.take_ptr()) } }) };
        let mut ret = unsafe { &*this_arg.inner }.create_channel(their_network_key.into_rust(), channel_value_satoshis, push_msat, user_id, local_override_config);
        let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { 0u8 /*o*/ }), Err(mut e) => crate::c_types::CResultTempl::err( { crate::util::errors::APIError::native_into(e) }) };
        local_ret
}

/// Gets the list of open channels, in random order. See ChannelDetail field documentation for
/// more information.
#[must_use]
#[no_mangle]
pub extern "C" fn ChannelManager_list_channels(this_arg: &ChannelManager) -> crate::c_types::derived::CVec_ChannelDetailsZ {
        let mut ret = unsafe { &*this_arg.inner }.list_channels();
        let mut local_ret = Vec::new(); for item in ret.drain(..) { local_ret.push( { crate::ln::channelmanager::ChannelDetails { inner: Box::into_raw(Box::new(item)), is_owned: true } }); };
        local_ret.into()
}

/// Gets the list of usable channels, in random order. Useful as an argument to
/// get_route to ensure non-announced channels are used.
///
/// These are guaranteed to have their is_live value set to true, see the documentation for
/// ChannelDetails::is_live for more info on exactly what the criteria are.
#[must_use]
#[no_mangle]
pub extern "C" fn ChannelManager_list_usable_channels(this_arg: &ChannelManager) -> crate::c_types::derived::CVec_ChannelDetailsZ {
        let mut ret = unsafe { &*this_arg.inner }.list_usable_channels();
        let mut local_ret = Vec::new(); for item in ret.drain(..) { local_ret.push( { crate::ln::channelmanager::ChannelDetails { inner: Box::into_raw(Box::new(item)), is_owned: true } }); };
        local_ret.into()
}

/// Begins the process of closing a channel. After this call (plus some timeout), no new HTLCs
/// will be accepted on the given channel, and after additional timeout/the closing of all
/// pending HTLCs, the channel will be closed on chain.
///
/// May generate a SendShutdown message event on success, which should be relayed.
#[must_use]
#[no_mangle]
pub extern "C" fn ChannelManager_close_channel(this_arg: &ChannelManager, channel_id: *const [u8; 32]) -> crate::c_types::derived::CResult_NoneAPIErrorZ {
        let mut ret = unsafe { &*this_arg.inner }.close_channel(unsafe { &*channel_id});
        let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { 0u8 /*o*/ }), Err(mut e) => crate::c_types::CResultTempl::err( { crate::util::errors::APIError::native_into(e) }) };
        local_ret
}

/// Force closes a channel, immediately broadcasting the latest local commitment transaction to
/// the chain and rejecting new HTLCs on the given channel.
#[no_mangle]
pub extern "C" fn ChannelManager_force_close_channel(this_arg: &ChannelManager, channel_id: *const [u8; 32]) {
        unsafe { &*this_arg.inner }.force_close_channel(unsafe { &*channel_id})
}

/// Force close all channels, immediately broadcasting the latest local commitment transaction
/// for each to the chain and rejecting new HTLCs on each.
#[no_mangle]
pub extern "C" fn ChannelManager_force_close_all_channels(this_arg: &ChannelManager) {
        unsafe { &*this_arg.inner }.force_close_all_channels()
}

/// Sends a payment along a given route.
///
/// Value parameters are provided via the last hop in route, see documentation for RouteHop
/// fields for more info.
///
/// Note that if the payment_hash already exists elsewhere (eg you're sending a duplicative
/// payment), we don't do anything to stop you! We always try to ensure that if the provided
/// next hop knows the preimage to payment_hash they can claim an additional amount as
/// specified in the last hop in the route! Thus, you should probably do your own
/// payment_preimage tracking (which you should already be doing as they represent \"proof of
/// payment\") and prevent double-sends yourself.
///
/// May generate SendHTLCs message(s) event on success, which should be relayed.
///
/// Each path may have a different return value, and PaymentSendValue may return a Vec with
/// each entry matching the corresponding-index entry in the route paths, see
/// PaymentSendFailure for more info.
///
/// In general, a path may raise:
///  * APIError::RouteError when an invalid route or forwarding parameter (cltv_delta, fee,
///    node public key) is specified.
///  * APIError::ChannelUnavailable if the next-hop channel is not available for updates
///    (including due to previous monitor update failure or new permanent monitor update
///    failure).
///  * APIError::MonitorUpdateFailed if a new monitor update failure prevented sending the
///    relevant updates.
///
/// Note that depending on the type of the PaymentSendFailure the HTLC may have been
/// irrevocably committed to on our end. In such a case, do NOT retry the payment with a
/// different route unless you intend to pay twice!
///
/// payment_secret is unrelated to payment_hash (or PaymentPreimage) and exists to authenticate
/// the sender to the recipient and prevent payment-probing (deanonymization) attacks. For
/// newer nodes, it will be provided to you in the invoice. If you do not have one, the Route
/// must not contain multiple paths as multi-path payments require a recipient-provided
/// payment_secret.
/// If a payment_secret *is* provided, we assume that the invoice had the payment_secret feature
/// bit set (either as required or as available). If multiple paths are present in the Route,
/// we assume the invoice had the basic_mpp feature set.
#[must_use]
#[no_mangle]
pub extern "C" fn ChannelManager_send_payment(this_arg: &ChannelManager, route: &crate::routing::router::Route, mut payment_hash: crate::c_types::ThirtyTwoBytes, payment_secret: crate::c_types::ThirtyTwoBytes) -> crate::c_types::derived::CResult_NonePaymentSendFailureZ {
        let mut local_payment_secret = if payment_secret.data == [0; 32] { None } else { Some( { ::lightning::ln::channelmanager::PaymentSecret(payment_secret.data) }) };
        let mut ret = unsafe { &*this_arg.inner }.send_payment(unsafe { &*route.inner }, ::lightning::ln::channelmanager::PaymentHash(payment_hash.data), &local_payment_secret);
        let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { 0u8 /*o*/ }), Err(mut e) => crate::c_types::CResultTempl::err( { crate::ln::channelmanager::PaymentSendFailure { inner: Box::into_raw(Box::new(e)), is_owned: true } }) };
        local_ret
}

/// Call this upon creation of a funding transaction for the given channel.
///
/// Note that ALL inputs in the transaction pointed to by funding_txo MUST spend SegWit outputs
/// or your counterparty can steal your funds!
///
/// Panics if a funding transaction has already been provided for this channel.
///
/// May panic if the funding_txo is duplicative with some other channel (note that this should
/// be trivially prevented by using unique funding transaction keys per-channel).
#[no_mangle]
pub extern "C" fn ChannelManager_funding_transaction_generated(this_arg: &ChannelManager, temporary_channel_id: *const [u8; 32], mut funding_txo: crate::chain::transaction::OutPoint) {
        unsafe { &*this_arg.inner }.funding_transaction_generated(unsafe { &*temporary_channel_id}, *unsafe { Box::from_raw(funding_txo.take_ptr()) })
}

/// Generates a signed node_announcement from the given arguments and creates a
/// BroadcastNodeAnnouncement event. Note that such messages will be ignored unless peers have
/// seen a channel_announcement from us (ie unless we have public channels open).
///
/// RGB is a node \"color\" and alias is a printable human-readable string to describe this node
/// to humans. They carry no in-protocol meaning.
///
/// addresses represent the set (possibly empty) of socket addresses on which this node accepts
/// incoming connections. These will be broadcast to the network, publicly tying these
/// addresses together. If you wish to preserve user privacy, addresses should likely contain
/// only Tor Onion addresses.
///
/// Panics if addresses is absurdly large (more than 500).
#[no_mangle]
pub extern "C" fn ChannelManager_broadcast_node_announcement(this_arg: &ChannelManager, mut rgb: crate::c_types::ThreeBytes, mut alias: crate::c_types::ThirtyTwoBytes, mut addresses: crate::c_types::derived::CVec_NetAddressZ) {
        let mut local_addresses = Vec::new(); for mut item in addresses.into_rust().drain(..) { local_addresses.push( { item.into_native() }); };
        unsafe { &*this_arg.inner }.broadcast_node_announcement(rgb.data, alias.data, local_addresses)
}

/// Processes HTLCs which are pending waiting on random forward delay.
///
/// Should only really ever be called in response to a PendingHTLCsForwardable event.
/// Will likely generate further events.
#[no_mangle]
pub extern "C" fn ChannelManager_process_pending_htlc_forwards(this_arg: &ChannelManager) {
        unsafe { &*this_arg.inner }.process_pending_htlc_forwards()
}

/// If a peer is disconnected we mark any channels with that peer as 'disabled'.
/// After some time, if channels are still disabled we need to broadcast a ChannelUpdate
/// to inform the network about the uselessness of these channels.
///
/// This method handles all the details, and must be called roughly once per minute.
#[no_mangle]
pub extern "C" fn ChannelManager_timer_chan_freshness_every_min(this_arg: &ChannelManager) {
        unsafe { &*this_arg.inner }.timer_chan_freshness_every_min()
}

/// Indicates that the preimage for payment_hash is unknown or the received amount is incorrect
/// after a PaymentReceived event, failing the HTLC back to its origin and freeing resources
/// along the path (including in our own channel on which we received it).
/// Returns false if no payment was found to fail backwards, true if the process of failing the
/// HTLC backwards has been started.
#[must_use]
#[no_mangle]
pub extern "C" fn ChannelManager_fail_htlc_backwards(this_arg: &ChannelManager, payment_hash: *const [u8; 32], payment_secret: crate::c_types::ThirtyTwoBytes) -> bool {
        let mut local_payment_secret = if payment_secret.data == [0; 32] { None } else { Some( { ::lightning::ln::channelmanager::PaymentSecret(payment_secret.data) }) };
        let mut ret = unsafe { &*this_arg.inner }.fail_htlc_backwards(&::lightning::ln::channelmanager::PaymentHash(unsafe { *payment_hash }), &local_payment_secret);
        ret
}

/// Provides a payment preimage in response to a PaymentReceived event, returning true and
/// generating message events for the net layer to claim the payment, if possible. Thus, you
/// should probably kick the net layer to go send messages if this returns true!
///
/// You must specify the expected amounts for this HTLC, and we will only claim HTLCs
/// available within a few percent of the expected amount. This is critical for several
/// reasons : a) it avoids providing senders with `proof-of-payment` (in the form of the
/// payment_preimage without having provided the full value and b) it avoids certain
/// privacy-breaking recipient-probing attacks which may reveal payment activity to
/// motivated attackers.
///
/// Note that the privacy concerns in (b) are not relevant in payments with a payment_secret
/// set. Thus, for such payments we will claim any payments which do not under-pay.
///
/// May panic if called except in response to a PaymentReceived event.
#[must_use]
#[no_mangle]
pub extern "C" fn ChannelManager_claim_funds(this_arg: &ChannelManager, mut payment_preimage: crate::c_types::ThirtyTwoBytes, payment_secret: crate::c_types::ThirtyTwoBytes, mut expected_amount: u64) -> bool {
        let mut local_payment_secret = if payment_secret.data == [0; 32] { None } else { Some( { ::lightning::ln::channelmanager::PaymentSecret(payment_secret.data) }) };
        let mut ret = unsafe { &*this_arg.inner }.claim_funds(::lightning::ln::channelmanager::PaymentPreimage(payment_preimage.data), &local_payment_secret, expected_amount);
        ret
}

/// Gets the node_id held by this ChannelManager
#[must_use]
#[no_mangle]
pub extern "C" fn ChannelManager_get_our_node_id(this_arg: &ChannelManager) -> crate::c_types::PublicKey {
        let mut ret = unsafe { &*this_arg.inner }.get_our_node_id();
        crate::c_types::PublicKey::from_rust(&ret)
}

/// Restores a single, given channel to normal operation after a
/// ChannelMonitorUpdateErr::TemporaryFailure was returned from a channel monitor update
/// operation.
///
/// All ChannelMonitor updates up to and including highest_applied_update_id must have been
/// fully committed in every copy of the given channels' ChannelMonitors.
///
/// Note that there is no effect to calling with a highest_applied_update_id other than the
/// current latest ChannelMonitorUpdate and one call to this function after multiple
/// ChannelMonitorUpdateErr::TemporaryFailures is fine. The highest_applied_update_id field
/// exists largely only to prevent races between this and concurrent update_monitor calls.
///
/// Thus, the anticipated use is, at a high level:
///  1) You register a ManyChannelMonitor with this ChannelManager,
///  2) it stores each update to disk, and begins updating any remote (eg watchtower) copies of
///     said ChannelMonitors as it can, returning ChannelMonitorUpdateErr::TemporaryFailures
///     any time it cannot do so instantly,
///  3) update(s) are applied to each remote copy of a ChannelMonitor,
///  4) once all remote copies are updated, you call this function with the update_id that
///     completed, and once it is the latest the Channel will be re-enabled.
#[no_mangle]
pub extern "C" fn ChannelManager_channel_monitor_updated(this_arg: &ChannelManager, funding_txo: &crate::chain::transaction::OutPoint, mut highest_applied_update_id: u64) {
        unsafe { &*this_arg.inner }.channel_monitor_updated(unsafe { &*funding_txo.inner }, highest_applied_update_id)
}

#[no_mangle]
pub extern "C" fn ChannelManager_as_MessageSendEventsProvider(this_arg: *const ChannelManager) -> crate::util::events::MessageSendEventsProvider {
        crate::util::events::MessageSendEventsProvider {
                this_arg: unsafe { (*this_arg).inner as *mut c_void },
                free: None,
                get_and_clear_pending_msg_events: ChannelManager_MessageSendEventsProvider_get_and_clear_pending_msg_events,
        }
}
use lightning::util::events::MessageSendEventsProvider as MessageSendEventsProviderTraitImport;
#[must_use]
extern "C" fn ChannelManager_MessageSendEventsProvider_get_and_clear_pending_msg_events(this_arg: *const c_void) -> crate::c_types::derived::CVec_MessageSendEventZ {
        let mut ret = unsafe { &mut *(this_arg as *mut nativeChannelManager) }.get_and_clear_pending_msg_events();
        let mut local_ret = Vec::new(); for item in ret.drain(..) { local_ret.push( { crate::util::events::MessageSendEvent::native_into(item) }); };
        local_ret.into()
}

#[no_mangle]
pub extern "C" fn ChannelManager_as_EventsProvider(this_arg: *const ChannelManager) -> crate::util::events::EventsProvider {
        crate::util::events::EventsProvider {
                this_arg: unsafe { (*this_arg).inner as *mut c_void },
                free: None,
                get_and_clear_pending_events: ChannelManager_EventsProvider_get_and_clear_pending_events,
        }
}
use lightning::util::events::EventsProvider as EventsProviderTraitImport;
#[must_use]
extern "C" fn ChannelManager_EventsProvider_get_and_clear_pending_events(this_arg: *const c_void) -> crate::c_types::derived::CVec_EventZ {
        let mut ret = unsafe { &mut *(this_arg as *mut nativeChannelManager) }.get_and_clear_pending_events();
        let mut local_ret = Vec::new(); for item in ret.drain(..) { local_ret.push( { crate::util::events::Event::native_into(item) }); };
        local_ret.into()
}

#[no_mangle]
pub extern "C" fn ChannelManager_as_ChainListener(this_arg: *const ChannelManager) -> crate::chain::chaininterface::ChainListener {
        crate::chain::chaininterface::ChainListener {
                this_arg: unsafe { (*this_arg).inner as *mut c_void },
                free: None,
                block_connected: ChannelManager_ChainListener_block_connected,
                block_disconnected: ChannelManager_ChainListener_block_disconnected,
        }
}
use lightning::chain::chaininterface::ChainListener as ChainListenerTraitImport;
extern "C" fn ChannelManager_ChainListener_block_connected(this_arg: *const c_void, header: *const [u8; 80], mut height: u32, mut txn_matched: crate::c_types::derived::CVec_TransactionZ, mut indexes_of_txn_matched: crate::c_types::usizeslice) {
        let mut local_txn_matched = Vec::new(); for mut item in txn_matched.into_rust().drain(..) { local_txn_matched.push( { ::bitcoin::consensus::encode::deserialize(&item.into_rust()[..]).unwrap() }); };
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.block_connected(&::bitcoin::consensus::encode::deserialize(unsafe { &*header }).unwrap(), height, &local_txn_matched.iter().collect::<Vec<_>>()[..], indexes_of_txn_matched.to_slice())
}
extern "C" fn ChannelManager_ChainListener_block_disconnected(this_arg: *const c_void, header: *const [u8; 80], unused_0: u32) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.block_disconnected(&::bitcoin::consensus::encode::deserialize(unsafe { &*header }).unwrap(), unused_0)
}

#[no_mangle]
pub extern "C" fn ChannelManager_as_ChannelMessageHandler(this_arg: *const ChannelManager) -> crate::ln::msgs::ChannelMessageHandler {
        crate::ln::msgs::ChannelMessageHandler {
                this_arg: unsafe { (*this_arg).inner as *mut c_void },
                free: None,
                handle_open_channel: ChannelManager_ChannelMessageHandler_handle_open_channel,
                handle_accept_channel: ChannelManager_ChannelMessageHandler_handle_accept_channel,
                handle_funding_created: ChannelManager_ChannelMessageHandler_handle_funding_created,
                handle_funding_signed: ChannelManager_ChannelMessageHandler_handle_funding_signed,
                handle_funding_locked: ChannelManager_ChannelMessageHandler_handle_funding_locked,
                handle_shutdown: ChannelManager_ChannelMessageHandler_handle_shutdown,
                handle_closing_signed: ChannelManager_ChannelMessageHandler_handle_closing_signed,
                handle_update_add_htlc: ChannelManager_ChannelMessageHandler_handle_update_add_htlc,
                handle_update_fulfill_htlc: ChannelManager_ChannelMessageHandler_handle_update_fulfill_htlc,
                handle_update_fail_htlc: ChannelManager_ChannelMessageHandler_handle_update_fail_htlc,
                handle_update_fail_malformed_htlc: ChannelManager_ChannelMessageHandler_handle_update_fail_malformed_htlc,
                handle_commitment_signed: ChannelManager_ChannelMessageHandler_handle_commitment_signed,
                handle_revoke_and_ack: ChannelManager_ChannelMessageHandler_handle_revoke_and_ack,
                handle_update_fee: ChannelManager_ChannelMessageHandler_handle_update_fee,
                handle_announcement_signatures: ChannelManager_ChannelMessageHandler_handle_announcement_signatures,
                peer_disconnected: ChannelManager_ChannelMessageHandler_peer_disconnected,
                peer_connected: ChannelManager_ChannelMessageHandler_peer_connected,
                handle_channel_reestablish: ChannelManager_ChannelMessageHandler_handle_channel_reestablish,
                handle_error: ChannelManager_ChannelMessageHandler_handle_error,
                MessageSendEventsProvider: crate::util::events::MessageSendEventsProvider {
                        this_arg: unsafe { (*this_arg).inner as *mut c_void },
                        free: None,
                        get_and_clear_pending_msg_events: ChannelManager_ChannelMessageHandler_get_and_clear_pending_msg_events,
                },
        }
}
use lightning::ln::msgs::ChannelMessageHandler as ChannelMessageHandlerTraitImport;
extern "C" fn ChannelManager_ChannelMessageHandler_handle_open_channel(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, mut their_features: crate::ln::features::InitFeatures, msg: &crate::ln::msgs::OpenChannel) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_open_channel(&counterparty_node_id.into_rust(), *unsafe { Box::from_raw(their_features.take_ptr()) }, unsafe { &*msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_handle_accept_channel(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, mut their_features: crate::ln::features::InitFeatures, msg: &crate::ln::msgs::AcceptChannel) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_accept_channel(&counterparty_node_id.into_rust(), *unsafe { Box::from_raw(their_features.take_ptr()) }, unsafe { &*msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_handle_funding_created(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, msg: &crate::ln::msgs::FundingCreated) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_funding_created(&counterparty_node_id.into_rust(), unsafe { &*msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_handle_funding_signed(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, msg: &crate::ln::msgs::FundingSigned) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_funding_signed(&counterparty_node_id.into_rust(), unsafe { &*msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_handle_funding_locked(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, msg: &crate::ln::msgs::FundingLocked) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_funding_locked(&counterparty_node_id.into_rust(), unsafe { &*msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_handle_shutdown(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, msg: &crate::ln::msgs::Shutdown) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_shutdown(&counterparty_node_id.into_rust(), unsafe { &*msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_handle_closing_signed(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, msg: &crate::ln::msgs::ClosingSigned) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_closing_signed(&counterparty_node_id.into_rust(), unsafe { &*msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_handle_update_add_htlc(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, msg: &crate::ln::msgs::UpdateAddHTLC) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_update_add_htlc(&counterparty_node_id.into_rust(), unsafe { &*msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_handle_update_fulfill_htlc(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, msg: &crate::ln::msgs::UpdateFulfillHTLC) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_update_fulfill_htlc(&counterparty_node_id.into_rust(), unsafe { &*msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_handle_update_fail_htlc(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, msg: &crate::ln::msgs::UpdateFailHTLC) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_update_fail_htlc(&counterparty_node_id.into_rust(), unsafe { &*msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_handle_update_fail_malformed_htlc(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, msg: &crate::ln::msgs::UpdateFailMalformedHTLC) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_update_fail_malformed_htlc(&counterparty_node_id.into_rust(), unsafe { &*msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_handle_commitment_signed(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, msg: &crate::ln::msgs::CommitmentSigned) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_commitment_signed(&counterparty_node_id.into_rust(), unsafe { &*msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_handle_revoke_and_ack(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, msg: &crate::ln::msgs::RevokeAndACK) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_revoke_and_ack(&counterparty_node_id.into_rust(), unsafe { &*msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_handle_update_fee(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, msg: &crate::ln::msgs::UpdateFee) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_update_fee(&counterparty_node_id.into_rust(), unsafe { &*msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_handle_announcement_signatures(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, msg: &crate::ln::msgs::AnnouncementSignatures) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_announcement_signatures(&counterparty_node_id.into_rust(), unsafe { &*msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_handle_channel_reestablish(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, msg: &crate::ln::msgs::ChannelReestablish) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_channel_reestablish(&counterparty_node_id.into_rust(), unsafe { &*msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_peer_disconnected(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, mut no_connection_possible: bool) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.peer_disconnected(&counterparty_node_id.into_rust(), no_connection_possible)
}
extern "C" fn ChannelManager_ChannelMessageHandler_peer_connected(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, init_msg: &crate::ln::msgs::Init) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.peer_connected(&counterparty_node_id.into_rust(), unsafe { &*init_msg.inner })
}
extern "C" fn ChannelManager_ChannelMessageHandler_handle_error(this_arg: *const c_void, counterparty_node_id: crate::c_types::PublicKey, msg: &crate::ln::msgs::ErrorMessage) {
        unsafe { &mut *(this_arg as *mut nativeChannelManager) }.handle_error(&counterparty_node_id.into_rust(), unsafe { &*msg.inner })
}
use lightning::util::events::MessageSendEventsProvider as nativeMessageSendEventsProviderTrait;
#[must_use]
extern "C" fn ChannelManager_ChannelMessageHandler_get_and_clear_pending_msg_events(this_arg: *const c_void) -> crate::c_types::derived::CVec_MessageSendEventZ {
        let mut ret = unsafe { &mut *(this_arg as *mut nativeChannelManager) }.get_and_clear_pending_msg_events();
        let mut local_ret = Vec::new(); for item in ret.drain(..) { local_ret.push( { crate::util::events::MessageSendEvent::native_into(item) }); };
        local_ret.into()
}


use lightning::ln::channelmanager::ChannelManagerReadArgs as nativeChannelManagerReadArgsImport;
type nativeChannelManagerReadArgs = nativeChannelManagerReadArgsImport<'static, crate::chain::keysinterface::ChannelKeys, crate::ln::channelmonitor::ManyChannelMonitor, crate::chain::chaininterface::BroadcasterInterface, crate::chain::keysinterface::KeysInterface, crate::chain::chaininterface::FeeEstimator, crate::util::logger::Logger>;

/// Arguments for the creation of a ChannelManager that are not deserialized.
///
/// At a high-level, the process for deserializing a ChannelManager and resuming normal operation
/// is:
/// 1) Deserialize all stored ChannelMonitors.
/// 2) Deserialize the ChannelManager by filling in this struct and calling <(Sha256dHash,
///    ChannelManager)>::read(reader, args).
///    This may result in closing some Channels if the ChannelMonitor is newer than the stored
///    ChannelManager state to ensure no loss of funds. Thus, transactions may be broadcasted.
/// 3) Register all relevant ChannelMonitor outpoints with your chain watch mechanism using
///    ChannelMonitor::get_monitored_outpoints and ChannelMonitor::get_funding_txo().
/// 4) Reconnect blocks on your ChannelMonitors.
/// 5) Move the ChannelMonitors into your local ManyChannelMonitor.
/// 6) Disconnect/connect blocks on the ChannelManager.
/// 7) Register the new ChannelManager with your ChainWatchInterface.
#[must_use]
#[repr(C)]
pub struct ChannelManagerReadArgs {
        /// Nearly everyhwere, inner must be non-null, however in places where
        /// the Rust equivalent takes an Option, it may be set to null to indicate None.
        pub inner: *mut nativeChannelManagerReadArgs,
        pub is_owned: bool,
}

impl Drop for ChannelManagerReadArgs {
        fn drop(&mut self) {
                if self.is_owned && !self.inner.is_null() {
                        let _ = unsafe { Box::from_raw(self.inner) };
                }
        }
}
#[no_mangle]
pub extern "C" fn ChannelManagerReadArgs_free(this_ptr: ChannelManagerReadArgs) { }
#[allow(unused)]
/// Used only if an object of this type is returned as a trait impl by a method
extern "C" fn ChannelManagerReadArgs_free_void(this_ptr: *mut c_void) {
        unsafe { let _ = Box::from_raw(this_ptr as *mut nativeChannelManagerReadArgs); }
}
#[allow(unused)]
/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
impl ChannelManagerReadArgs {
        pub(crate) fn take_ptr(mut self) -> *mut nativeChannelManagerReadArgs {
                assert!(self.is_owned);
                let ret = self.inner;
                self.inner = std::ptr::null_mut();
                ret
        }
}
/// The keys provider which will give us relevant keys. Some keys will be loaded during
/// deserialization.
#[no_mangle]
pub extern "C" fn ChannelManagerReadArgs_get_keys_manager(this_ptr: &ChannelManagerReadArgs) -> *const crate::chain::keysinterface::KeysInterface {
        let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.keys_manager;
        &(*inner_val)
}
/// The keys provider which will give us relevant keys. Some keys will be loaded during
/// deserialization.
#[no_mangle]
pub extern "C" fn ChannelManagerReadArgs_set_keys_manager(this_ptr: &mut ChannelManagerReadArgs, mut val: crate::chain::keysinterface::KeysInterface) {
        unsafe { &mut *this_ptr.inner }.keys_manager = val;
}
/// The fee_estimator for use in the ChannelManager in the future.
///
/// No calls to the FeeEstimator will be made during deserialization.
#[no_mangle]
pub extern "C" fn ChannelManagerReadArgs_get_fee_estimator(this_ptr: &ChannelManagerReadArgs) -> *const crate::chain::chaininterface::FeeEstimator {
        let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.fee_estimator;
        &(*inner_val)
}
/// The fee_estimator for use in the ChannelManager in the future.
///
/// No calls to the FeeEstimator will be made during deserialization.
#[no_mangle]
pub extern "C" fn ChannelManagerReadArgs_set_fee_estimator(this_ptr: &mut ChannelManagerReadArgs, mut val: crate::chain::chaininterface::FeeEstimator) {
        unsafe { &mut *this_ptr.inner }.fee_estimator = val;
}
/// The ManyChannelMonitor for use in the ChannelManager in the future.
///
/// No calls to the ManyChannelMonitor will be made during deserialization. It is assumed that
/// you have deserialized ChannelMonitors separately and will add them to your
/// ManyChannelMonitor after deserializing this ChannelManager.
#[no_mangle]
pub extern "C" fn ChannelManagerReadArgs_get_monitor(this_ptr: &ChannelManagerReadArgs) -> *const crate::ln::channelmonitor::ManyChannelMonitor {
        let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.monitor;
        &(*inner_val)
}
/// The ManyChannelMonitor for use in the ChannelManager in the future.
///
/// No calls to the ManyChannelMonitor will be made during deserialization. It is assumed that
/// you have deserialized ChannelMonitors separately and will add them to your
/// ManyChannelMonitor after deserializing this ChannelManager.
#[no_mangle]
pub extern "C" fn ChannelManagerReadArgs_set_monitor(this_ptr: &mut ChannelManagerReadArgs, mut val: crate::ln::channelmonitor::ManyChannelMonitor) {
        unsafe { &mut *this_ptr.inner }.monitor = val;
}
/// The BroadcasterInterface which will be used in the ChannelManager in the future and may be
/// used to broadcast the latest local commitment transactions of channels which must be
/// force-closed during deserialization.
#[no_mangle]
pub extern "C" fn ChannelManagerReadArgs_get_tx_broadcaster(this_ptr: &ChannelManagerReadArgs) -> *const crate::chain::chaininterface::BroadcasterInterface {
        let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.tx_broadcaster;
        &(*inner_val)
}
/// The BroadcasterInterface which will be used in the ChannelManager in the future and may be
/// used to broadcast the latest local commitment transactions of channels which must be
/// force-closed during deserialization.
#[no_mangle]
pub extern "C" fn ChannelManagerReadArgs_set_tx_broadcaster(this_ptr: &mut ChannelManagerReadArgs, mut val: crate::chain::chaininterface::BroadcasterInterface) {
        unsafe { &mut *this_ptr.inner }.tx_broadcaster = val;
}
/// The Logger for use in the ChannelManager and which may be used to log information during
/// deserialization.
#[no_mangle]
pub extern "C" fn ChannelManagerReadArgs_get_logger(this_ptr: &ChannelManagerReadArgs) -> *const crate::util::logger::Logger {
        let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.logger;
        &(*inner_val)
}
/// The Logger for use in the ChannelManager and which may be used to log information during
/// deserialization.
#[no_mangle]
pub extern "C" fn ChannelManagerReadArgs_set_logger(this_ptr: &mut ChannelManagerReadArgs, mut val: crate::util::logger::Logger) {
        unsafe { &mut *this_ptr.inner }.logger = val;
}
/// Default settings used for new channels. Any existing channels will continue to use the
/// runtime settings which were stored when the ChannelManager was serialized.
#[no_mangle]
pub extern "C" fn ChannelManagerReadArgs_get_default_config(this_ptr: &ChannelManagerReadArgs) -> crate::util::config::UserConfig {
        let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.default_config;
        crate::util::config::UserConfig { inner: unsafe { ( (&((*inner_val)) as *const _) as *mut _) }, is_owned: false }
}
/// Default settings used for new channels. Any existing channels will continue to use the
/// runtime settings which were stored when the ChannelManager was serialized.
#[no_mangle]
pub extern "C" fn ChannelManagerReadArgs_set_default_config(this_ptr: &mut ChannelManagerReadArgs, mut val: crate::util::config::UserConfig) {
        unsafe { &mut *this_ptr.inner }.default_config = *unsafe { Box::from_raw(val.take_ptr()) };
}
/// Simple utility function to create a ChannelManagerReadArgs which creates the monitor
/// HashMap for you. This is primarily useful for C bindings where it is not practical to
/// populate a HashMap directly from C.
#[must_use]
#[no_mangle]
pub extern "C" fn ChannelManagerReadArgs_new(mut keys_manager: crate::chain::keysinterface::KeysInterface, mut fee_estimator: crate::chain::chaininterface::FeeEstimator, mut monitor: crate::ln::channelmonitor::ManyChannelMonitor, mut tx_broadcaster: crate::chain::chaininterface::BroadcasterInterface, mut logger: crate::util::logger::Logger, mut default_config: crate::util::config::UserConfig, mut channel_monitors: crate::c_types::derived::CVec_ChannelMonitorZ) -> ChannelManagerReadArgs {
        let mut local_channel_monitors = Vec::new(); for mut item in channel_monitors.into_rust().drain(..) { local_channel_monitors.push( { unsafe { &mut *item.inner } }); };
        let mut ret = lightning::ln::channelmanager::ChannelManagerReadArgs::new(keys_manager, fee_estimator, monitor, tx_broadcaster, logger, *unsafe { Box::from_raw(default_config.take_ptr()) }, local_channel_monitors);
        ChannelManagerReadArgs { inner: Box::into_raw(Box::new(ret)), is_owned: true }
}