> For the complete documentation index, see [llms.txt](https://docs.mangrove.exchange/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mangrove.exchange/dev/strat-lib/technical-references/api-preferences/strats/src/strategies/utils/accesscontrolled.md).

# AccessControlled

The contract stores an admin address which is checked against `msg.sender` in the `onlyAdmin` modifier.\
Additionally, a specific `msg.sender` can be verified with the `onlyCaller` modifier.

## SetAdmin

```solidity
event SetAdmin(address admin)
```

logs new `admin` of `this`\
By emitting this data, an indexer will be able to keep track of what address is the admin of this contract.

### Parameters

| Name  | Type    | Description    |
| ----- | ------- | -------------- |
| admin | address | The new admin. |

## \_admin

```solidity
address _admin
```

The admin address.

## constructor

```solidity
constructor(address admin_) public
```

`AccessControlled`'s constructor

### Parameters

| Name    | Type    | Description                                                                                                                 |
| ------- | ------- | --------------------------------------------------------------------------------------------------------------------------- |
| admin\_ | address | The address of the admin that can access privileged functions and also allowed to change the admin. Cannot be `address(0)`. |

## onlyAdmin

```solidity
modifier onlyAdmin()
```

This modifier verifies that `msg.sender` is the admin.

## onlyCaller

```solidity
modifier onlyCaller(address caller)
```

This modifier verifies that `msg.sender` is the caller.

### Parameters

| Name   | Type    | Description                                                      |
| ------ | ------- | ---------------------------------------------------------------- |
| caller | address | The address of the caller that can access the modified function. |

## adminOrCaller

```solidity
modifier adminOrCaller(address caller)
```

This modifier verifies that `msg.sender` is either caller or the admin

### Parameters

| Name   | Type    | Description                                                    |
| ------ | ------- | -------------------------------------------------------------- |
| caller | address | The address of a caller that can access the modified function. |

## admin

```solidity
function admin() public view returns (address current)
```

Retrieves the current admin.

### Return Values

| Name    | Type    | Description |
| ------- | ------- | ----------- |
| current | address | admin.      |

## setAdmin

```solidity
function setAdmin(address admin_) public
```

This sets the admin. Only the current admin can change the admin.

### Parameters

| Name    | Type    | Description                            |
| ------- | ------- | -------------------------------------- |
| admin\_ | address | The new admin. Cannot be `address(0)`. |


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