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Diffstat (limited to 'doc/zmq_epgm.txt')
| -rw-r--r-- | doc/zmq_epgm.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/doc/zmq_epgm.txt b/doc/zmq_epgm.txt index 72ae24f..9a48afd 100644 --- a/doc/zmq_epgm.txt +++ b/doc/zmq_epgm.txt @@ -93,6 +93,11 @@ order specifying either the offset of the first message 'frame' in the datagram or containing the value `0xFFFF` if the datagram contains solely an intermediate part of a larger message. +Note that offset specifies where the first message begins rather than the first +message part. Thus, if there are trailing message parts at the beginning of +the packet the offset ignores them and points to first initial message part +in the packet. + The following diagram illustrates the layout of a single PGM datagram payload: .... |