# Linear Boost Controller

When a user stakes SDL in the `SDLPool`, they can choose to lock it for a certain period of time gaining a boost depending on the duration of time they locked for. `LinearBoostController` handles the boost calculations to determine how much boosted reSDL an account will receive.

## View Functions

### maxLockingDuration

Returns the maximum duration that a lock can have

```solidity
function maxLockingDuration() external view returns (uint256)
```

#### Return Values

| Name               | Type    | Description          |
| ------------------ | ------- | -------------------- |
| maxLockingDuration | uint256 | max locking duration |

### maxBoost

Returns the maximum boost multiplier that can be received for a lock

```solidity
function maxBoost() external view returns (uint256)
```

#### Return Values

| Name     | Type    | Description          |
| -------- | ------- | -------------------- |
| maxBoost | uint256 | max boost multiplier |

### getBoostAmount

Returns the amount of boosted reSDL balance received for `_amount` of SDL with `_lockingDuration`

```solidity
function getBoostAmount(uint256 _amount, uint64 _lockingDuration) external view returns (uint256)
```

#### Parameters

| Name              | Type    | Description                    |
| ----------------- | ------- | ------------------------------ |
| \_amount          | uint256 | amount of tokens to lock       |
| \_lockingDuration | uint64  | duration of the locking period |

#### Return Values

| Name        | Type    | Description                                                           |
| ----------- | ------- | --------------------------------------------------------------------- |
| boostAmount | uint256 | amount of boost balance received in addition to the unboosted balance |

## Write Functions

### setMaxLockingDuration

Sets the maximum locking duration that a lock can have

```solidity
function setMaxLockingDuration(uint64 _maxLockingDuration) external
```

#### Parameters

| Name                 | Type   | Description                     |
| -------------------- | ------ | ------------------------------- |
| \_maxLockingDuration | uint64 | max locking duration in seconds |

### setMaxBoost

Sets the maximum boost multiplier that can be received for a lock

```solidity
function setMaxBoost(uint64 _maxBoost) external
```

#### Parameters

| Name       | Type   | Description          |
| ---------- | ------ | -------------------- |
| \_maxBoost | uint64 | max boost multiplier |