SLP cross chain fee cause lack of vToken reserve #1649
Merged
+75
−49
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Currently, when SLP performs transfer back operation to transfer custodial assets back to the Bifrost network, the Bifrost network will charge a token as a cross-chain handling fee when entering Bifrost. This leads to the actual number of tokens hosted regularly causing certain losses. This part of the loss is not reflected in the SLP's operating logic (actual token decreases, token pool does not decrease). This leads to the gap between the number of long-term running token pools and the number of actually managed tokens gradually accumulate and grow, resulting in a relatively insufficient reserve of continuous vTokens.
Reform the
chargeHostFeeAndTuneVtokenExchangeRate
method to enable actual correction of the value of the Token pool when making exchange rate adjustments without affecting the correctness of the ledger:value
value parameter of the adjusted exchange rate into two parameters:pool_value
: This value is used to up-regulate the tokenPool value during execution (determines the exchange rate)delegator_value
: This value is used to up-regulate the delegator ledger value during execution.