bigz/init-lp-pool #1565

0xbigz · 2025-04-08T17:06:49Z

No description provided.

* add get_swap_amount, get_swap_fees, get_weight * update accounts * add back ts * rebase * add constituent swap fees

init constituent

* add initializeLpPool test * add check for constituent target weights

Nour/add mapping datum

…t-weights add crank ix

programs/drift/src/state/events.rs

programs/drift/src/instructions/lp_pool.rs

crispheaney · 2025-07-06T13:43:30Z

programs/drift/src/instructions/lp_pool.rs

+
+    let num_constituents = constituent_target_base.len();
+    for datum in constituent_target_base.iter() {
+        msg!("weight datum: {:?}", datum);


need to do an audit of all the msg to figure out which ones we want vs arent useful

programs/drift/src/instructions/lp_pool.rs

crispheaney · 2025-07-06T13:52:53Z

programs/drift/src/instructions/lp_pool.rs

+            constituent.constituent_derivative_index
+        );
+        if constituent.constituent_index != lp_pool.usdc_consituent_index
+            && constituent.constituent_derivative_index != lp_pool.usdc_consituent_index as i16


if usdc_consituent_index is 0, will constituent.constituent_derivative_index != lp_pool.usdc_consituent_inde cause issues?

shouldnt cause issues -- this is meant to pick up USDC and other stables. is there a corner case you're thinking of that isnt handled?

programs/drift/src/instructions/lp_pool.rs

crispheaney · 2025-07-06T14:08:46Z

programs/drift/src/instructions/lp_pool.rs

+    in_constituent.sync_token_balance(ctx.accounts.constituent_in_token_account.amount);
+    out_constituent.sync_token_balance(ctx.accounts.constituent_out_token_account.amount);
+
+    Ok(())


should think of any invariants to enforce on this call. anything moving token balance is good to have extra invariants around

crispheaney · 2025-07-06T14:10:35Z

programs/drift/src/instructions/lp_pool.rs

+    ctx.accounts.spot_market_vault.reload()?;
+    spot_market.validate_max_token_deposits_and_borrows(false)?;
+
+    Ok(())


check the deposit + token amount same before and after

crispheaney · 2025-07-06T14:11:42Z

programs/drift/src/instructions/lp_pool.rs

+    pub state: Box<Account<'info, State>>,
+    #[account(
+        mut,
+        constraint = admin.key() == admin_hot_wallet::id() || admin.key() == state.admin


should this eventually be permissionless to allow more lp swaps?

programs/drift/src/instructions/lp_pool.rs

* grid search * grid search swap test

* low hanging fruit comments * remove pda checks and store lp pool on zero copy accounts * parameterize depeg threshold * make description in lp pool event * update idl for event change

* add swap fee unit tests * remove linear inventory fee component

* fixing the main settle test and settle function * all current tests pass * update msg occurrences

* refactor settle pnl to modularize and add tests * more cargo tests

* use oracle staleness threshold for staleness * add spot market vault invariant

0xbigz and others added 30 commits April 8, 2025 13:06

program: init lp pool

f251378

cargo fmt --

be58c57

add total fee fields

2cf149d

add update_target_weights math

b2cf992

program: use sparse matrix for constituent map and update tests

a405a56

zero copy accounts, init ix (#1578)

34b044c

update accounts (#1580)

5d3fd5e

zero copy + permissionless crank ixs (#1581)

9826453

program: support negative target weights for borrow-lend

b7e0cab

fix tests to work with zero copy

57b4ec2

few comment changes

81dd06e

remove discriminator from impl macro

73b32d5

add get_swap_amount, get_swap_fees, get_weight (#1579)

afdfe7b

* add get_swap_amount, get_swap_fees, get_weight * update accounts * add back ts * rebase * add constituent swap fees

fix swap fee calc (#1582)

9383688

add init amm mapping to lp context (#1583)

007bace

init constituent

10d070e

Merge pull request #1584 from drift-labs/nour/init-constituent

6cd4254

init constituent

add initializeLpPool test (#1585)

1d7fd00

* add initializeLpPool test * add check for constituent target weights

add add datum ix

be22c24

Merge branch 'bigz/init-lp-pool' into nour/add-mapping-datum

ffd6a51

add init tests and invariant checks

188ab4e

Merge pull request #1587 from drift-labs/nour/add-mapping-datum

6353b62

Nour/add mapping datum

rename data to more useful names

f450cb2

dlp use spl token program (#1588)

c803c16

add crank ix

f7fac79

update total_weight for validation_flags check

6bbe40d

push test so far

55014a0

overriding perp position works

4b13618

remove message

39726c5

Merge pull request #1589 from drift-labs/nour/crank-constituent-targe…

222a335

…t-weights add crank ix