java.lang.Object
- io.netty5.channel.unix.FileDescriptor

Direct Known Subclasses:

Socket
```
public class FileDescriptor
extends Object
```
Native FileDescriptor implementation which allows to wrap an int and provide a FileDescriptor for it.

Constructor Summary

Constructors
Constructor Description

FileDescriptor(int fd)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`	Close the file descriptor.
`boolean`	`equals(Object o)`
`static FileDescriptor`	`from(File file)`	Open a new `FileDescriptor` for the given `File`.
`static FileDescriptor`	`from(String path)`	Open a new `FileDescriptor` for the given path.
`int`	`hashCode()`
`int`	`intValue()`	Return the int value of the filedescriptor.
`boolean`	`isOpen()`	Returns `true` if the file descriptor is open.
`protected boolean`	`markClosed()`
`static FileDescriptor[]`	`pipe()`
`int`	`read(ByteBuffer buf, int pos, int limit)`
`int`	`readAddress(long address, int pos, int limit)`
`String`	`toString()`
`int`	`write(ByteBuffer buf, int pos, int limit)`
`int`	`writeAddress(long address, int pos, int limit)`
`long`	`writev(ByteBuffer[] buffers, int offset, int length, long maxBytesToWrite)`
`long`	`writevAddresses(long memoryAddress, int length)`

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

Constructor Detail
- FileDescriptor
```
public FileDescriptor(int fd)
```

Method Detail

intValue
```
public final int intValue()
```
Return the int value of the filedescriptor.

markClosed
```
protected boolean markClosed()
```

close

public void close()
           throws IOException

Close the file descriptor.

Throws:: IOException

isOpen
```
public boolean isOpen()
```
Returns true if the file descriptor is open.

write

public final int write(ByteBuffer buf,
                       int pos,
                       int limit)
                throws IOException

Throws:: IOException

writeAddress

public final int writeAddress(long address,
                              int pos,
                              int limit)
                       throws IOException

Throws:: IOException

writev

public final long writev(ByteBuffer[] buffers,
                         int offset,
                         int length,
                         long maxBytesToWrite)
                  throws IOException

Throws:: IOException

writevAddresses

public final long writevAddresses(long memoryAddress,
                                  int length)
                           throws IOException

Throws:: IOException

read

public final int read(ByteBuffer buf,
                      int pos,
                      int limit)
               throws IOException

Throws:: IOException

readAddress

public final int readAddress(long address,
                             int pos,
                             int limit)
                      throws IOException

Throws:: IOException

toString
```
public String toString()
```
Overrides:

toString in class Object

equals
```
public boolean equals(Object o)
```
Overrides:

equals in class Object

hashCode
```
public int hashCode()
```
Overrides:

hashCode in class Object

from

public static FileDescriptor from(String path)
                           throws IOException

Open a new FileDescriptor for the given path.

Throws:: IOException

from

public static FileDescriptor from(File file)
                           throws IOException

Open a new FileDescriptor for the given File.

Throws:: IOException

pipe

public static FileDescriptor[] pipe()
                             throws IOException

Returns:: [0] = read end, [1] = write end
Throws:: IOException

Class FileDescriptor

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

FileDescriptor

Method Detail

intValue

markClosed

close

isOpen

write

writeAddress

writev

writevAddresses

read

readAddress

toString

equals

hashCode

from

from

pipe