/**
* Receives a datagram packet from this socket. When this method returns, the
* <tt>DatagramPacket</tt>'s buffer is filled with the data received. The datagram packet also
* contains the sender's IP address, and the port number on the sender's machine.
*
* <p>This method blocks until a datagram is received. The <tt>length</tt> field of the datagram
* packet object contains the length of the received message. If the message is longer than the
* packet's length, the message is truncated.
*
* @param p the <tt>DatagramPacket</tt> into which to place the incoming data
* @throws IOException if an I/O error occurs
* @see DatagramSocket#receive(DatagramPacket)
*/
@Override
public void receive(DatagramPacket p) throws IOException {
synchronized (inReceiveSyncRoot) {
inReceive++;
}
try {
super.receive(p);
} finally {
synchronized (inReceiveSyncRoot) {
inReceive--;
inReceiveSyncRoot.notifyAll();
}
}
}
