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# CAPLfunctionCANstressWaitForIdle

# CANstressWaitForIdle

[Valid for](../../../Shared/FeatureAvailability.md): CANoe DE

## Function Syntax

```
long CANstressWaitForIdle( dword timeout );
```

## Description

Waits until the CANstress hardware is in the state **Idle**.

## Parameters

* **timeout**: Specifies a maximal time in milliseconds that is waited. At the latest after the expiration of this time, the function returns.

  **Note**: With timeout = 0 an infinite time is waited until the state **Idle** occurs. Thus the additional test procedure is blocked if the state **Idle** is not reached.

## Return Values

* **0**: If successful.
* **-1**: On occurrence of an internal error.
* **-2**: On return of the function due to a timeout.

## Example

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