AsyncFileLock (Vert.x Stack - Docs 5.0.0.CR3 API)

```
public interface AsyncFileLock
```
A lock on a region of an AsyncFile.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`isShared()`
`Future<Boolean>`	`isValid()`	A lock remains valid until it is released or the file corresponding `AsyncFile` is closed.
`boolean`	`isValidBlocking()`	Like `isValid()` but blocking.
`boolean`	`overlaps(long position, long size)`
`long`	`position()`
`Future<Void>`	`release()`	Releases this lock;
`void`	`releaseBlocking()`	Like `release()` but blocking.
`long`	`size()`

- Method Detail
  - position
```
long position()
```
    Returns:
    
    the position of the first byte of the locked region
  - size
```
long size()
```
    Returns:
    
    the size in bytes of the locked region
  - isShared
```
boolean isShared()
```
    Returns:
    
    true if this lock is shared, otherwise false
  - overlaps
```
boolean overlaps(long position,
                 long size)
```
    Returns:
    
    true if this lock overlaps with the range described by position and size, otherwise false
  - isValidBlocking
```
boolean isValidBlocking()
```
    Like isValid() but blocking.
    
    Throws:
    
    FileSystemException - if an error occurs
  - isValid
```
Future<Boolean> isValid()
```
    A lock remains valid until it is released or the file corresponding AsyncFile is closed.
  - releaseBlocking
```
void releaseBlocking()
```
    Like release() but blocking.
    
    Throws:
    
    FileSystemException - if an error occurs
  - release
```
Future<Void> release()
```
    Releases this lock;