MemoryMappedFile (moe.ios.core API)

java.lang.Object
- libcore.io.MemoryMappedFile

All Implemented Interfaces:

AutoCloseable
```
public final class MemoryMappedFile
extends Object
implements AutoCloseable
```
A memory-mapped file. Use #mmap to map a file, close() to unmap a file, and either bigEndianIterator() or littleEndianIterator() to get a seekable BufferIterator over the mapped data.

Constructor Summary

Constructors
Constructor Description

MemoryMappedFile(long address, long size)
Use this if you've called mmap yourself.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`BufferIterator`	`bigEndianIterator()`	Returns a new iterator that treats the mapped data as big-endian.
`void`	`close()`	Unmaps this memory-mapped file using munmap(2).
`BufferIterator`	`littleEndianIterator()`	Returns a new iterator that treats the mapped data as little-endian.
`static MemoryMappedFile`	`mmapRO(String path)`	Use this to mmap the whole file read-only.
`long`	`size()`	Returns the size in bytes of the memory-mapped region.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - MemoryMappedFile
```
public MemoryMappedFile(long address,
                        long size)
```
    Use this if you've called mmap yourself.
- Method Detail
  - mmapRO
```
public static MemoryMappedFile mmapRO(String path)
                               throws ErrnoException
```
    Use this to mmap the whole file read-only.
    
    Throws:
    
    ErrnoException
  - close
```
public void close()
           throws ErrnoException
```
    Unmaps this memory-mapped file using munmap(2). This is a no-op if close has already been called. Note that this class does not use finalization; you must call close yourself. Calling this method invalidates any iterators over this MemoryMappedFile. It is an error to use such an iterator after calling close.
    
    Specified by:
    
    close in interface AutoCloseable
    
    Throws:
    
    ErrnoException
  - bigEndianIterator
```
public BufferIterator bigEndianIterator()
```
    Returns a new iterator that treats the mapped data as big-endian.
  - littleEndianIterator
```
public BufferIterator littleEndianIterator()
```
    Returns a new iterator that treats the mapped data as little-endian.
  - size
```
public long size()
```
    Returns the size in bytes of the memory-mapped region.