30 lines
1.4 KiB
Solidity
30 lines
1.4 KiB
Solidity
// SPDX-License-Identifier: GPL-3.0-or-later
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
pragma solidity >=0.7.0 <0.9.0;
|
|
|
|
interface IProtocolFeeCache {
|
|
/**
|
|
* @notice Updates the cache to the latest value set by governance.
|
|
* @dev Can be called by anyone to update the cached fee percentages.
|
|
*
|
|
* Correct behavior depends on the token balances from the Vault, which may be out of sync with the state of
|
|
* the pool during execution of a Vault hook. This is protected by a call to `ensureNotInVaultContext` in
|
|
* VaultReentrancyLib where overridden in `ProtocolFeeCache`, and so is safe to call on ManagedPool.
|
|
*
|
|
* See https://forum.balancer.fi/t/reentrancy-vulnerability-scope-expanded/4345 for reference.
|
|
*/
|
|
function updateProtocolFeePercentageCache() external;
|
|
}
|