SocketChannel

java.lang.Object
- tcl.lang.SocketChannel

```
public class SocketChannel
extends java.lang.Object
```
The SocketChannel class implements a channel object for Socket connections, created using the socket command.

Field Summary

Fields
Modifier and Type	Field and Description
`protected boolean`	`blocking` Set to false when channel is in non-blocking mode.
`protected int`	`buffering` Buffering (full,line, or none)
`protected int`	`bufferSize` Buffer size, in bytes, allocated for channel to store input or output
`protected int`	`bytesPerChar`
`protected java.lang.String`	`encoding` Name of Java encoding for this Channel.
`protected tcl.lang.TclInputStream`	`input` Tcl input and output objecs.
`protected char`	`inputEofChar` If nonzero, use this as a signal of EOF on input.
`protected int`	`inputTranslation` Translation mode for end-of-line character
`protected int`	`mode` The read, write, append and create flags are set here.
`protected tcl.lang.TclOutputStream`	`output`
`protected char`	`outputEofChar` If nonzero, append this to a writeable channel on close.
`protected int`	`outputTranslation`
`protected int`	`refCount` How many interpreters hold references to this IO channel?

Constructor Summary

Constructors
Constructor and Description
`SocketChannel(Interp interp, int mode, java.lang.String localAddr, int localPort, boolean async, java.lang.String address, int port)` Constructor - creates a new SocketChannel object with the given options.
`SocketChannel(Interp interp, java.net.Socket s)` Constructor for making SocketChannel objects from connections made to a ServerSocket.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected void`	`checkRead(Interp interp)`
`protected void`	`checkWrite(Interp interp)`
`protected java.io.InputStream`	`getInputStream()` This method should be overridden in the subclass to provide a channel specific InputStream object.
`protected java.io.OutputStream`	`getOutputStream()` This method should be overridden in the subclass to provide a channel specific OutputStream object.
`protected void`	`initInput()` Setup the TclInputStream on the first call to read
`protected void`	`initOutput()` Setup the TclOutputStream on the first call to write

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

- Field Detail
  - mode
```
protected int mode
```
    The read, write, append and create flags are set here. The variables used to set the flags are found in the class TclIO.
  - refCount
```
protected int refCount
```
    How many interpreters hold references to this IO channel?
  - input
```
protected tcl.lang.TclInputStream input
```
    Tcl input and output objecs. These are like a mix between a Java Stream and a Reader.
  - output
```
protected tcl.lang.TclOutputStream output
```
  - blocking
```
protected boolean blocking
```
    Set to false when channel is in non-blocking mode.
  - buffering
```
protected int buffering
```
    Buffering (full,line, or none)
  - bufferSize
```
protected int bufferSize
```
    Buffer size, in bytes, allocated for channel to store input or output
  - encoding
```
protected java.lang.String encoding
```
    Name of Java encoding for this Channel. A null value means use no encoding (binary).
  - bytesPerChar
```
protected int bytesPerChar
```
  - inputTranslation
```
protected int inputTranslation
```
    Translation mode for end-of-line character
  - outputTranslation
```
protected int outputTranslation
```
  - inputEofChar
```
protected char inputEofChar
```
    If nonzero, use this as a signal of EOF on input.
  - outputEofChar
```
protected char outputEofChar
```
    If nonzero, append this to a writeable channel on close.
- Constructor Detail
  - SocketChannel
```
public SocketChannel(Interp interp,
                     int mode,
                     java.lang.String localAddr,
                     int localPort,
                     boolean async,
                     java.lang.String address,
                     int port)
              throws java.io.IOException,
                     TclException
```
    Constructor - creates a new SocketChannel object with the given options. Also creates an underlying Socket object, and Input and Output Streams.
    
    Throws:
    
    java.io.IOException
    
    TclException
  - SocketChannel
```
public SocketChannel(Interp interp,
                     java.net.Socket s)
              throws java.io.IOException,
                     TclException
```
    Constructor for making SocketChannel objects from connections made to a ServerSocket.
    
    Throws:
    
    java.io.IOException
    
    TclException
- Method Detail
  - getInputStream
```
protected java.io.InputStream getInputStream()
                                      throws java.io.IOException
```
    This method should be overridden in the subclass to provide a channel specific InputStream object.
    
    Throws:
    
    java.io.IOException
  - getOutputStream
```
protected java.io.OutputStream getOutputStream()
                                        throws java.io.IOException
```
    This method should be overridden in the subclass to provide a channel specific OutputStream object.
    
    Throws:
    
    java.io.IOException
  - initInput
```
protected void initInput()
                  throws java.io.IOException
```
    Setup the TclInputStream on the first call to read
    
    Throws:
    
    java.io.IOException
  - initOutput
```
protected void initOutput()
                   throws java.io.IOException
```
    Setup the TclOutputStream on the first call to write
    
    Throws:
    
    java.io.IOException
  - checkRead
```
protected void checkRead(Interp interp)
                  throws TclException
```
    Throws:
    
    TclException
  - checkWrite
```
protected void checkWrite(Interp interp)
                   throws TclException
```
    Throws:
    
    TclException

Class SocketChannel

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

mode

refCount

input

output

blocking

buffering

bufferSize

encoding

bytesPerChar

inputTranslation

outputTranslation

inputEofChar

outputEofChar

Constructor Detail

SocketChannel

SocketChannel

Method Detail

getInputStream

getOutputStream

initInput

initOutput

checkRead

checkWrite