@classmethod
def getChildPids(cls, pid):
    """
            getChildPids - Get pids of children of a given process.

            Note -- this is on the order of 100x faster than using psutil, so that's why it's reimplemented.

            @param pid <int> - A process pid

            @return list<int> - List of children pids
        """
    myPids = cls.getMyRunningPids()
    pid = int(pid)
    childPids = []
    for myPid in myPids:
        try:
            statInfo = cls.getStatInfo(myPid)
        except:
            continue
        if pid == statInfo['ppid']:
            childPids.append(myPid)
    return childPids
