> For the complete documentation index, see [llms.txt](https://contracts.synapseprotocol.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://contracts.synapseprotocol.com/messaging/apps/pingpong.md).

# PingPong

## Methods

### disable

```solidity
function disable() external nonpayable
```

### executeMessage

```solidity
function executeMessage(bytes32 _srcAddress, uint256 _srcChainId, bytes _message, address _executor) external nonpayable
```

Called by MessageBus (MessageBusReceiver)

#### Parameters

| Name         | Type    | Description                                                                    |
| ------------ | ------- | ------------------------------------------------------------------------------ |
| \_srcAddress | bytes32 | The bytes32 address of the source app contract                                 |
| \_srcChainId | uint256 | The source chain ID where the transfer is originated from                      |
| \_message    | bytes   | Arbitrary message bytes originated from and encoded by the source app contract |
| \_executor   | address | Address who called the MessageBus execution function                           |

### maxPings

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

#### Returns

| Name | Type    | Description |
| ---- | ------- | ----------- |
| \_0  | uint256 | undefined   |

### messageBus

```solidity
function messageBus() external view returns (contract IMessageBus)
```

#### Returns

| Name | Type                 | Description |
| ---- | -------------------- | ----------- |
| \_0  | contract IMessageBus | undefined   |

### numPings

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

#### Returns

| Name | Type    | Description |
| ---- | ------- | ----------- |
| \_0  | uint256 | undefined   |

### ping

```solidity
function ping(uint256 _dstChainId, address _dstPingPongAddr, uint256 pings) external nonpayable
```

#### Parameters

| Name              | Type    | Description |
| ----------------- | ------- | ----------- |
| \_dstChainId      | uint256 | undefined   |
| \_dstPingPongAddr | address | undefined   |
| pings             | uint256 | undefined   |

### pingsEnabled

```solidity
function pingsEnabled() external view returns (bool)
```

#### Returns

| Name | Type | Description |
| ---- | ---- | ----------- |
| \_0  | bool | undefined   |

## Events

### Ping

```solidity
event Ping(uint256 pings)
```

#### Parameters

| Name  | Type    | Description |
| ----- | ------- | ----------- |
| pings | uint256 | undefined   |