def IterateTAILQ_HEAD()

in lldbmacros/init.py [0:0]

• 5 lines of code
• 2 McCabe index (conditional complexity)

def IterateTAILQ_HEAD(headval, element_name):
    """ iterate over a TAILQ_HEAD in kernel. refer to bsd/sys/queue.h
        params:
            headval     - value : value object representing the head of the list
            element_name- str          :  string name of the field which holds the list links.
        returns:
            A generator does not return. It is used for iterating.
            value : an object that is of type as headval->tqh_first. Always a pointer object
        example usage:
          list_head = kern.GetGlobalVariable('mountlist')
          for entryobj in IterateTAILQ_HEAD(list_head, 'mnt_list'):
            print GetEntrySummary(entryobj)
    """
    iter_val = headval.tqh_first
    while unsigned(iter_val) != 0 :
        yield iter_val
        iter_val = iter_val.__getattr__(element_name).tqe_next