mirror of
https://github.com/0glabs/0g-chain.git
synced 2024-12-25 15:55:18 +00:00
35 lines
1.4 KiB
Markdown
35 lines
1.4 KiB
Markdown
|
# Begin Blocker
|
||
|
|
|
||
|
|
At the start of every block the BeginBlocker of the cdp module:
|
||
|
|
|
||
|
|
- updates total CDP fees
|
||
|
|
- liquidates CDPs under the collateral ratio
|
||
|
|
- nets out system debt and, if necessary, starts auctions to re-balance it
|
||
|
|
- records the last block time
|
||
|
|
|
||
|
|
## Update Fees
|
||
|
|
|
||
|
|
- The total fees accumulated since the last block across all CDPs are calculated.
|
||
|
|
- An equal amount of debt coins are minted and sent to the system's CDP module account.
|
||
|
|
- An equal amount of stable asset coins are minted and sent to the system's liquidator module account
|
||
|
|
|
||
|
|
## Liquidate CDP
|
||
|
|
|
||
|
|
- Get every cdp that is under the liquidation ratio for its collateral type.
|
||
|
|
- For each cdp:
|
||
|
|
- Calculate and update fees since last update.
|
||
|
|
- Remove all collateral and internal debt coins from cdp and deposits and delete it. Send the coins to the liquidator module account.
|
||
|
|
- Start auctions of a fixed size from this collateral (with any remainder in a smaller sized auction), sending collateral and debt coins to the auction module account.
|
||
|
|
- Decrement total principal.
|
||
|
|
|
||
|
|
## Net Out System Debt, Re-Balance
|
||
|
|
|
||
|
|
- Burn the maximum possible equal amount of debt and stable asset from the liquidator module account.
|
||
|
|
- If there is enough debt remaining for an auction, start one.
|
||
|
|
- If there is enough surplus stable asset remaining for an auction, start one.
|
||
|
|
- Otherwise do nothing, leave debt/surplus to accumulate over subsequent blocks.
|
||
|
|
|
||
|
|
## Update Previous Block Time
|
||
|
|
|
||
|
|
The current block time is recorded.
|