* rename usd_opt to usdc_opt in OracleAccountInfos
* use fallbacks when fetching bank+ price in AccountFetcher struct
* feat: add derive_fallback_oracle_keys to MangoGroupContext
* test: properly assert failure CU in test_health_compute_tokens_fallback_oracles
* provide fallback oracle accounts in the rust client
* liquidator: update for fallback oracles
* set fallback config in mango services
* support fallback oracles in rust settler + keeper
* fix send error related to fetching fallbacks dynamically in tcs_start
* drop derive_fallback_oracle_keys_sync
* add fetch_multiple_accounts to AccountFetcher trait
* revert client::new() api
* deriving oracle keys uses account_fetcher
* use client helpers for deriving health_check account_metas
* add health_cache helper to mango client
* add get_slot to account_fetcher
* lint
* cached account fetcher only fetches uncached accounts
* ensure keeper client does not use cached oracles for staleness checks
* address minor review comments
* create unique job keys for CachedAccountFetcher.fetch_multiple_accounts
* fmt
* improve hashing in CachedAccountFetcher.fetch_multiple_accounts
---------
Co-authored-by: Christian Kamm <mail@ckamm.de>
- Don't just restart on new listings, but also on significant changes to
old listings such as oracle changes.
- Cover the liquidator and settler in addition to the keeper.
- Only ever give an incentive when pnl is at least 1% of the position
value. That way large positions (like $100k in SOL-PERP) don't get
settled on 0.1% price fluctuations. The price now needs to change by
1% for settlement to occur.
- For low health incentives, cap the percentual incentive at 2x the flat
settle fee. We want to give the settler incentive to use these first,
but the settler doesn't take on risk, so the reward doesn't need to be
large.
Many instructions now return PreparedInstructions instead of a direct
Instruction or Vec<Instruction>. That way they can keep track of the
expected cu cost of the instructions for the compute limit instruction
that gets added once all instructions are made.
This changes perp market margining to no longer assume all pnl is in USD
while settlement is in USDC. Instead, a configurable settle token is used for
pnl and settlement, defaulting to USDC.
There is no difference while the USDC price is forced to $1 and the init and liab
weights are 1. But with this patch, it becomes possible to change that.
For now it is not recommended to use a token other than USDC or USDT (or
another USD targeting stable token) for perp settlement.
The patch also updates all insurance vault use to be aware that the insurance
fund is not in USD but in USDC and apply the USDC price before payouts.
To do this, the previous PerpLiqNegativePnlOrBankruptcy was replaced by
a new PerpLiqNegativePnlOrBankruptcyV2 instruction.
Co-authored-by: microwavedcola1 <89031858+microwavedcola1@users.noreply.github.com>
Christian Kamm
Lou-Kamades
riordanp