breez_sdk_core::lightning::ln

Struct ChannelId

pub struct ChannelId(pub [u8; 32]);

Expand description

A unique 32-byte identifier for a channel. Depending on how the ID is generated, several varieties are distinguished (but all are stored as 32 bytes): v1 and temporary. A v1 channel ID is generated based on funding tx outpoint (txid & index). A temporary ID is generated randomly. (Later revocation-point-based v2 is a possibility.) The variety (context) is not stored, it is relevant only at creation.

This is not exported to bindings users as we just use [u8; 32] directly.

Tuple Fields§

§0: [u8; 32]

Implementations§

impl ChannelId

pub fn v1_from_funding_txid(txid: &[u8; 32], output_index: u16) -> ChannelId

Create v1 channel ID based on a funding TX ID and output index

pub fn v1_from_funding_outpoint(outpoint: OutPoint) -> ChannelId

Create v1 channel ID from a funding tx outpoint

pub fn temporary_from_entropy_source<ES>(entropy_source: &ES) -> ChannelId
where ES: Deref, <ES as Deref>::Target: EntropySource,

Create a temporary channel ID randomly, based on an entropy source.

pub fn from_bytes(data: [u8; 32]) -> ChannelId

Generic constructor; create a new channel ID from the provided data. Use a more specific *_from_* constructor when possible.

pub fn new_zero() -> ChannelId

Create a channel ID consisting of all-zeros data (e.g. when uninitialized or a placeholder).

pub fn is_zero(&self) -> bool

Check whether ID is consisting of all zeros (uninitialized)

pub fn v2_from_revocation_basepoints( ours: &RevocationBasepoint, theirs: &RevocationBasepoint, ) -> ChannelId

Create v2 channel ID by concatenating the holder revocation basepoint with the counterparty revocation basepoint and hashing the result. The basepoints will be concatenated in increasing sorted order.

pub fn temporary_v2_from_revocation_basepoint( our_revocation_basepoint: &RevocationBasepoint, ) -> ChannelId

Create temporary v2 channel ID by concatenating a zeroed out basepoint with the holder revocation basepoint and hashing the result.

Trait Implementations§

impl Clone for ChannelId

fn clone(&self) -> ChannelId

Returns a duplicate of the value. Read more

1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl Debug for ChannelId

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more

impl Display for ChannelId

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more

impl Hash for ChannelId

fn hash<H>(&self, state: &mut H)
where __H: Hasher,

Feeds this value into the given Hasher. Read more

1.3.0 · Source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more

impl Ord for ChannelId

fn cmp(&self, other: &ChannelId) -> Ordering

This method returns an Ordering between self and other. Read more

1.21.0 · Source§

fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more

1.21.0 · Source§

fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more

1.50.0 · Source§

fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more

impl PartialEq for ChannelId

fn eq(&self, other: &ChannelId) -> bool

Tests for self and other values to be equal, and is used by ==.

1.0.0 · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for ChannelId

fn partial_cmp(&self, other: &ChannelId) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more

1.0.0 · Source§

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more

1.0.0 · Source§

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more

1.0.0 · Source§

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more

1.0.0 · Source§

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more

impl Readable for ChannelId

fn read<R>(r: &mut R) -> Result<ChannelId, DecodeError>
where R: Read,

Reads a Self in from the given Read.

impl Writeable for ChannelId

fn write<W>(&self, w: &mut W) -> Result<(), Error>
where W: Writer,

Writes self out to the given Writer.

fn encode(&self) -> Vec<u8> ⓘ

Writes self out to a Vec<u8>.

fn serialized_length(&self) -> usize

Gets the length of this object after it has been serialized. This can be overridden to optimize cases where we prepend an object with its length.

impl Copy for ChannelId

impl Eq for ChannelId

impl StructuralPartialEq for ChannelId

Auto Trait Implementations§

impl Freeze for ChannelId

impl RefUnwindSafe for ChannelId

impl Send for ChannelId

impl Sync for ChannelId

impl Unpin for ChannelId

impl UnwindSafe for ChannelId

Blanket Implementations§

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Gets the TypeId of self. Read more

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