03-01-2005
The only thing I can think of is to create a global variable and increment it for each co-process. The test on a fd that I know of is
[ -t $fd ]
which checks for being a tty.
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LEARN ABOUT CENTOS
tapset::tty
tapset::tty(3stap) tapset::tty(3stap)
NAME
tapset::tty - systemtap tty tapset
DESCRIPTION
tty.open
Called when a tty is opened
See probe::tty.open(3stap)
for details.
tty.release
Called when the tty is closed
See probe::tty.release(3stap)
for details.
tty.resize
Called when a terminal resize happens
See probe::tty.resize(3stap)
for details.
tty.ioctl
called when a ioctl is request to the tty
See probe::tty.ioctl(3stap)
for details.
tty.init
Called when a tty is being initalized
See probe::tty.init(3stap)
for details.
tty.register
Called when a tty device is registred
See probe::tty.register(3stap)
for details.
tty.unregister
Called when a tty device is being unregistered
See probe::tty.unregister(3stap)
for details.
tty.poll
Called when a tty device is being polled
See probe::tty.poll(3stap)
for details.
tty.receive
called when a tty receives a message
See probe::tty.receive(3stap)
for details.
tty.write
write to the tty line
See probe::tty.write(3stap)
for details.
tty.read
called when a tty line will be read
See probe::tty.read(3stap)
for details.
SEE ALSO
probe::tty.open(3stap), probe::tty.release(3stap), probe::tty.resize(3stap), probe::tty.ioctl(3stap), probe::tty.init(3stap),
probe::tty.register(3stap), probe::tty.unregister(3stap), probe::tty.poll(3stap), probe::tty.receive(3stap), probe::tty.write(3stap),
probe::tty.read(3stap), stap(1), stapprobes(3stap)
IBM
--- tapset::tty(3stap)