Java.io.ioexception Read Failed Socket Might Closed or Timeout, Read Ret

Class Overview

A listening Bluetooth socket.

The interface for Bluetooth Sockets is like to that of TCP sockets: Socket and ServerSocket. On the server side, utilize a BluetoothServerSocket to create a listening server socket. When a connection is accepted by the BluetoothServerSocket, it will return a new BluetoothSocket to manage the connection. On the client side, apply a single BluetoothSocket to both initiate an outgoing connection and to manage the connexion.

The most common type of Bluetooth socket is RFCOMM, which is the type supported by the Android APIs. RFCOMM is a connection-oriented, streaming transport over Bluetooth. Information technology is also known as the Series Port Profile (SPP).

To create a listening BluetoothServerSocket that's ready for incoming connections, use BluetoothAdapter.listenUsingRfcommWithServiceRecord(). Then call accept() to listen for incoming connection requests. This telephone call will cake until a connectedness is established, at which point, information technology volition render a BluetoothSocket to manage the connexion. In one case the BluetoothSocket is acquired, it's a good idea to call close() on the BluetoothServerSocket when it'southward no longer needed for accepting connections. Closing the BluetoothServerSocket volition non close the returned BluetoothSocket.

BluetoothServerSocket is thread safe. In item, shut() will always immediately arrest ongoing operations and close the server socket.

Note: Requires the BLUETOOTH permission.

Developer Guides

For more information about using Bluetooth, read the Bluetooth developer guide.

Summary

Public Methods
BluetoothSocket	take(int timeout) Block until a connexion is established, with timeout.
BluetoothSocket	accept() Block until a connectedness is established.
void	close() Immediately close this socket, and release all associated resources.

[Aggrandize] Inherited Methods
From class java.lang.Object Object clone() Creates and returns a copy of this Object. boolean equals(Object o) Compares this instance with the specified object and indicates if they are equal. void finalize() Invoked when the garbage collector has detected that this instance is no longer reachable. final Course<?> getClass() Returns the unique case of Form that represents this object'southward course. int hashCode() Returns an integer hash code for this object. final void notify() Causes a thread which is waiting on this object'due south monitor (by means of calling one of the wait() methods) to be woken up. terminal void notifyAll() Causes all threads which are waiting on this object's monitor (past ways of calling 1 of the await() methods) to be woken up. String toString() Returns a string containing a concise, homo-readable description of this object. final void wait() Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object. final void wait(long millis, int nanos) Causes the calling thread to expect until some other thread calls the notify() or notifyAll() method of this object or until the specified timeout expires. concluding void await(long millis) Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.
From interface java.io.Closeable abstract void close() Closes the object and release any organization resource it holds.

Public Methods

public BluetoothSocket accept (int timeout)

Cake until a connection is established, with timeout.

Returns a connected BluetoothSocket on successful connection.

In one case this call returns, it can be called again to accept subsequent incoming connections.

close() can be used to abort this call from another thread.

Throws

IOException	on error, for instance this call was aborted, or timeout

public BluetoothSocket accept ()

Block until a connection is established.

Returns a connected BluetoothSocket on successful connexion.

Once this call returns, it tin can be chosen again to take subsequent incoming connections.

shut() can be used to abort this call from some other thread.

Throws

IOException	on error, for case this call was aborted, or timeout

public void close ()

Immediately close this socket, and release all associated resource.

Causes blocked calls on this socket in other threads to immediately throw an IOException.

Closing the BluetoothServerSocket will not close any BluetoothSocket received from take().

reamsagnight.blogspot.com

Source: https://stuff.mit.edu/afs/sipb/project/android/docs/reference/android/bluetooth/BluetoothServerSocket.html

Share this post