sys/resource.h

_XOPEN_SOURCE 600 {
    PRIO_PROCESS
    PRIO_PGRP
    PRIO_USER

    RLIM_INFINITY
    RLIM_SAVED_MAX
    RLIM_SAVED_CUR

    RUSAGE_SELF
    RUSAGE_CHILDREN

    RLIMIT_CORE
    RLIMIT_CPU
    RLIMIT_DATA
    RLIMIT_FSIZE
    RLIMIT_NOFILE
    RLIMIT_STACK
    RLIMIT_AS
}
