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stake-pool: Ceiling all fee calculations (HAL-01) #6153
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2501babe
approved these changes
Jan 24, 2024
|
seems straightforward! |
billythedummy
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to igneous-labs/sanctum-spl-stake-pool
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Feb 9, 2024
stake-pool: Ceiling all fee calculations
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Problem
During deposit and withdrawal functions, if the SOL or pool token amount is small, it is possible the fee calculations floor to zero due to loss of precision, preventing fee collection.
Solution
This scenario is not economically viable, and the cost of fee avoidance would outweigh the benefit of depositing such a small amount to the stake pool, but it's better to fix things up.
The change takes the ceiling of all fee calculations by adding
denominator - 1to the numerator.