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java.lang.Object lejos.rcxcomm.PacketHandler lejos.rcxcomm.LLCHandler
public class LLCHandler
Packet handler than implement the LLC packet protocol.
Deals with packets and acks.
Supports independent streams of data in both directions.
WARNING: THIS CLASS IS SHARED BETWEEN THE classes AND pccomms PROJECTS.
DO NOT EDIT THE VERSION IN pccomms AS IT WILL BE OVERWRITTEN WHEN THE PROJECT IS BUILT.
Field Summary |
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Fields inherited from class lejos.rcxcomm.PacketHandler |
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lowerHandler |
Constructor Summary | |
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LLCHandler(SensorPort port)
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Method Summary | |
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boolean |
isAckAvailable()
Check if an Ack is available |
boolean |
isPacketAvailable()
Check if a packet is available |
int |
receiveAck(byte[] buffer)
Receive an ack. |
int |
receivePacket(byte[] buffer)
Receive a packet. |
boolean |
sendPacket(byte[] packet,
int len)
Send a packet. |
Methods inherited from class lejos.rcxcomm.PacketHandler |
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close, getError, open, reset, setListen |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public LLCHandler(SensorPort port)
Method Detail |
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public 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 int receiveAck(byte[] buffer)
receiveAck
in class PacketHandler
buffer
- the buffer to receive the ack into
public boolean isPacketAvailable()
isPacketAvailable
in class PacketHandler
public boolean isAckAvailable()
isAckAvailable
in class PacketHandler
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