Fixed-length Packet Input Stream¶

Splits a stream of packets, by assuming that each packet has a fixed length in bytes.

For example, when receiving the following byte fragments:

+---+----+------+----+
| A | BC | DEFG | HI |
+---+----+------+----+

A fixed-length packet input stream at 3 bytes, will identify the following packets:

+-----+-----+-----+
| ABC | DEF | GHI |
+-----+-----+-----+

Class Name¶

org.yamcs.tctm.FixedPacketInputStream

Configuration¶

This can be used in the configuration of a stream-based packet data link in etc/yamcs.instance.yaml. Example:

dataLinks:
  - name: file-in
    class: org.yamcs.tctm.FilePollingTmDataLink
    stream: tm_dump
    incomingDir: incoming/
    packetInputStreamClassName: org.yamcs.tctm.FixedPacketInputStream
    packetInputStreamArgs:
      packetSize: 50
    # ...

Configuration Options¶

packetSize (integer): Required. Size of each packet in bytes