monitor - graphical display for viewing resource use.
SYNOPSIS
command
| grid/srv/monitor
interface
[
wintitle
]
DESCRIPTION
Monitor
is designed to work with resources that deal with incoming connections (such as
grid-register(1))
to visually display the connections to a specific resource.
Interface
sets the style of interface, this can be 1 or 2. Interface 1 is the simplest, displaying only a list of connections to the resource. Interface 2 is slightly more complex, allowing extra data to be displayed for each connection. While interface 1 shows all the connections at any one time, interface 2 displays a selection of 'slots' which have buttons that light up to signify a connection. Clicking on a lit button will display any data given about that connection in the main window.
Wintitle
optionally sets the title of the
monitor
window.
Command
must write status messages to
stdout
which are then read and displayed (if appropriate) by
monitor.
Monitor
reads on
stdin
and accepts the following input:
Interface 1
add addr
display a connection from address
addr
del addr
remove a connection from address
addr
Interface 2
data set id { data }
set and display the string
data
in slot
id.
data set id finished
clear slot
id
Common
setup maxusers n
set display to fit a maximum of
n
connections. -1 signifies unlimited connections.
starting pid
add
pid
to a list of pids whose process group is to be killed if the user closes
monitor.
error errstr
print out the error string
errstr
to the console.
exit
close down
monitor
and kill all processes in the current group.
Input messages of any other form will simply be ignored.