Provided by: systemtap-doc_2.9-2ubuntu2_all 

NAME
probe::socket.sendmsg - Message is currently being sent on a socket.
SYNOPSIS
socket.sendmsg
VALUES
flags
Socket flags value
state
Socket state value
protocol
Protocol value
name
Name of this probe
type
Socket type value
family
Protocol family value
size
Message size in bytes
CONTEXT
The message sender
DESCRIPTION
Fires at the beginning of sending a message on a socket via the sock_sendmsg function
SEE ALSO
tapset::socket(3stap)
SystemTap Tapset Reference April 2016 PROBE::SOCKET.SEND(3stap)