light_sdk/
state.rs

1use anchor_lang::{AnchorDeserialize, AnchorSerialize};
2use solana_program::pubkey::Pubkey;
3
4#[derive(AnchorDeserialize, AnchorSerialize, Debug, PartialEq, Default)]
5pub struct MerkleTreeMetadata {
6    pub access_metadata: AccessMetadata,
7    pub rollover_metadata: RolloverMetadata,
8    // Queue associated with this Merkle tree.
9    pub associated_queue: Pubkey,
10    // Next Merkle tree to be used after rollover.
11    pub next_merkle_tree: Pubkey,
12}
13
14#[derive(AnchorDeserialize, AnchorSerialize, Debug, PartialEq, Default)]
15pub struct AccessMetadata {
16    /// Owner of the Merkle tree.
17    pub owner: Pubkey,
18    /// Program owner of the Merkle tree. This will be used for program owned Merkle trees.
19    pub program_owner: Pubkey,
20    /// Optional privileged forester pubkey, can be set for custom Merkle trees
21    /// without a network fee. Merkle trees without network fees are not
22    /// forested by light foresters. The variable is not used in the account
23    /// compression program but the registry program. The registry program
24    /// implements access control to prevent contention during forester. The
25    /// forester pubkey specified in this struct can bypass contention checks.
26    pub forester: Pubkey,
27}
28
29#[derive(AnchorDeserialize, AnchorSerialize, Debug, PartialEq, Default)]
30pub struct RolloverMetadata {
31    /// Unique index.
32    pub index: u64,
33    /// This fee is used for rent for the next account.
34    /// It accumulates in the account so that once the corresponding Merkle tree account is full it can be rolled over
35    pub rollover_fee: u64,
36    /// The threshold in percentage points when the account should be rolled over (95 corresponds to 95% filled).
37    pub rollover_threshold: u64,
38    /// Tip for maintaining the account.
39    pub network_fee: u64,
40    /// The slot when the account was rolled over, a rolled over account should not be written to.
41    pub rolledover_slot: u64,
42    /// If current slot is greater than rolledover_slot + close_threshold and
43    /// the account is empty it can be closed. No 'close' functionality has been
44    /// implemented yet.
45    pub close_threshold: u64,
46    /// Placeholder for bytes of additional accounts which are tied to the
47    /// Merkle trees operation and need to be rolled over as well.
48    pub additional_bytes: u64,
49}
light_sdk/state.rs

light_sdk/
state.rs
