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java.lang.Objectrcx.josx.rcxcomm.PacketHandler
rcx.josx.rcxcomm.LNPHandler
public class LNPHandler
A Packet handler that implements the outer LNP packet format. It uses the Tower call to send and receive LNP packets.
Constructor Summary | |
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LNPHandler()
Creates an LNP packet handler and opens the tower |
Method Summary | |
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void |
close()
Close the Tower. |
int |
getError()
Get the last error on the Tower |
boolean |
isAddressing()
Test if last received packet is addressing (or integrity) |
boolean |
isPacketAvailable()
Check if a packet is available |
int |
receivePacket(byte[] buffer)
Receive a packet. |
boolean |
sendPacket(byte[] packet,
int len)
Send a packet. |
void |
setListen(boolean listen)
Set or unset the listen flag to keep a PC serial tower alive |
Methods inherited from class rcx.josx.rcxcomm.PacketHandler |
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isAckAvailable, open, receiveAck, reset |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public LNPHandler()
Method Detail |
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public boolean isAddressing()
public int getError()
getError
in class PacketHandler
public void setListen(boolean listen)
setListen
in class PacketHandler
listen
- true to set listen mode, else falsepublic boolean sendPacket(byte[] packet, int len)
sendPacket
in class PacketHandler
packet
- the bytes to sendlen
- the number of bytes to send
public int receivePacket(byte[] buffer)
receivePacket
in class PacketHandler
buffer
- the buffer to receive the packet into
public boolean isPacketAvailable()
isPacketAvailable
in class PacketHandler
public void close()
close
in class PacketHandler
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