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authorMartin Sustrik <sustrik@250bpm.com>2011-04-01 11:53:51 +0200
committerMartin Sustrik <sustrik@250bpm.com>2011-04-01 11:53:51 +0200
commit599df5203ca3e4dfa39ea7617616b7886e95aff3 (patch)
tree4f64b604970d7206fd56d4bd5e36e8cd4f73e026 /doc
parentcce57617c7d4da78a3fd00e105d4920e34181a07 (diff)
PGM wire format specification improved in zmq_pgm(7)
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
Diffstat (limited to 'doc')
-rw-r--r--doc/zmq_pgm.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/doc/zmq_pgm.txt b/doc/zmq_pgm.txt
index 91b1678..8815fc7 100644
--- a/doc/zmq_pgm.txt
+++ b/doc/zmq_pgm.txt
@@ -92,6 +92,11 @@ 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:
....