SYNOPSIS
use Proc::Wait3;
($pid, $status, $utime, $stime, $maxrss, $ixrss, $idrss, $isrss,
$minflt, $majflt, $nswap, $inblock, $oublock, $msgsnd, $msgrcv,
$nsignals, $nvcsw, $nivcsw) = wait3(0); # doesn't wait
($pid, $status, $utime, $stime, $maxrss, $ixrss, $idrss, $isrss,
$minflt, $majflt, $nswap, $inblock, $oublock, $msgsnd, $msgrcv,
$nsignals, $nvcsw, $nivcsw) = wait3(1); # waits for a child
DESCRIPTION
If any child processes have exited, this call will ``reap'' the zombies similar to the perl ``wait'' function.By default, it will return immediately and if there are no dead children, everything will be undefined. If you pass in a true argument, it will block until a child exits (or it gets a signal).
$pid PID of exiting child
$status exit status of child, just like C<$?>
$utime floating point user cpu seconds
$stime floating point system cpu seconds
$maxrss the maximum resident set size utilized (in kilobytes).
$minflt the number of page faults serviced without any I/O
activity; here I/O activity is avoided by "reclaiming" a
page frame from the list of pages awaiting reallocation.
$majflt the number of page faults serviced that required I/O
activity.
$nswap the number of times a process was "swapped" out of main
memory.
$inblock the number of times the file system had to perform input.
$oublock the number of times the file system had to perform output.
$msgsnd the number of messages sent over sockets.
$msgrcv the number of messages received from sockets.
$nsignals the number of signals delivered.
$nvcsw the number of times a context switch resulted due to a
process voluntarily giving up the processor before its
time slice was completed (usually to await availability of
a resource).
$nivcsw the number of times a context switch resulted due to a
higher priority process becoming runnable or because the
current process exceeded its time slice.