CompletionCallback

```
interface CompletionCallback
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`handle(int res, int flags, long udata, java.nio.ByteBuffer extraCqeData)`	Called for a completion event that was put into the `CompletionQueue`.

- Method Detail
  - handle
```
boolean handle(int res,
               int flags,
               long udata,
               java.nio.ByteBuffer extraCqeData)
```
    Called for a completion event that was put into the CompletionQueue.
    
    Parameters:
    
    res - the result of the completion event.
    
    flags - the flags
    
    udata - the user data that was provided as part of the submission
    
    extraCqeData - the extra data for the CQE. This will only be non-null of the ring was setup with IORING_SETUP_CQE32 or IORING_SETUP_CQE_MIXED and IORING_CQE_F_32 is set in flags.
    
    Returns:
    
    true if this completion represents a real I/O event that should be counted, false for internal completions (e.g. eventfd, ring fd).