/**
* Preallocates a packet with internal buffer of the supplied size.
*
* @param size number of bytes to pre allocate
*/
public JMemoryPacket(int size) {
super(size, 0);
header.setWirelen(size);
/** Bug #2878768 JMemoryPacket(int) constructor doesn't work */
super.peer(super.memory);
}
/**
* Initializes the packet's state and data by doing a deep copy of the contents of the buffer.
*
* @param buffer buffer containing both state and data in the form
* <pre>
* +--------------+-------------+
* | packet state | packet data |
* +--------------+-------------+
* </pre>
*/
public JMemoryPacket(byte[] buffer) {
super(Type.POINTER);
final JBuffer mem = getMemoryBuffer(buffer);
super.peer(mem);
header.setWirelen(buffer.length);
}
/**
* Initializes the packet's state and data by doing a deep copy of the contents of the buffer.
*
* @param buffer buffer containing both state and data in the form
* <pre>
* +--------------+-------------+
* | packet state | packet data |
* +--------------+-------------+
* </pre>
*
* @throws PeeringException if there is a problem peering with the buffer
*/
public JMemoryPacket(ByteBuffer buffer) throws PeeringException {
super(Type.POINTER);
final int size = buffer.limit() - buffer.position();
final JBuffer mem = getMemoryBuffer(size);
super.peer(mem);
transferFrom(buffer);
header.setWirelen(size);
}
