Provided by: systemtap-doc_2.9-2ubuntu2_all 

NAME
probe::signal.send_sig_queue.return - Queuing a signal to a process completed
SYNOPSIS
signal.send_sig_queue.return
VALUES
retstr
Return value as a string
name
Name of the probe point
SEE ALSO
tapset::signal(3stap)
SystemTap Tapset Reference April 2016 PROBE::SIGNAL.SEND(3stap)