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mango-v4
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Liquidation: Ignore dust balances and perp pnl 

Liquidation and perp pnl settlement may not bring spot amounts to
exactly zero. Having a small spot amount < 1 native token can otherwise
make the liquidation get stuck and not move one to the next phase.
This commit is contained in:
Christian Kamm 2022-12-19 11:47:28 +01:00
parent f68a11145f
commit 55e8fc390f
2 changed files with 5 additions and 4 deletions
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3
liquidator/src/liquidate.rs
View File

@ -264,6 +264,9 @@ impl<'a> LiquidateHelper<'a> {
} else { } else {
return None; return None;
}; };
if settleable_pnl.abs() < 1 {
return None;
}
Some((pp.market_index, settleable_pnl)) Some((pp.market_index, settleable_pnl))
}) })
.collect::<Vec<(PerpMarketIndex, I80F48)>>(); .collect::<Vec<(PerpMarketIndex, I80F48)>>();

6
programs/mango-v4/src/health/cache.rs
View File

@ -442,7 +442,7 @@ impl HealthCache {
pub fn has_spot_assets(&self) -> bool { pub fn has_spot_assets(&self) -> bool {
self.token_infos.iter().any(|ti| { self.token_infos.iter().any(|ti| {
// can use token_liq_with_token // can use token_liq_with_token
ti.balance_native.is_positive() ti.balance_native >= 1
}) })
} }
@ -466,9 +466,7 @@ impl HealthCache {
} }
pub fn has_spot_borrows(&self) -> bool { pub fn has_spot_borrows(&self) -> bool {
self.token_infos self.token_infos.iter().any(|ti| ti.balance_native < 0)
.iter()
.any(|ti| ti.balance_native.is_negative())
} }
pub fn has_borrows(&self) -> bool { pub fn has_borrows(&self) -> bool {