def _set_rt(self, pid, sched, prio):
sched_str = schedutils.schedstr(sched)
log.debug("Setting scheduler policy to '%s' and priority to '%d' of PID '%d'."
% (sched_str, prio, pid))
try:
prio_min = schedutils.get_priority_min(sched)
prio_max = schedutils.get_priority_max(sched)
if prio < prio_min or prio > prio_max:
log.error("Priority for %s must be in range %d - %d. '%d' was given."
% (sched_str, prio_min,
prio_max, prio))
# Workaround for old (pre-0.4) python-schedutils which raised
# SystemError instead of OSError
except (SystemError, OSError) as e:
log.error("Failed to get allowed priority range: %s"
% e)
try:
schedutils.set_scheduler(pid, sched, prio)
except (SystemError, OSError) as e:
if hasattr(e, "errno") and e.errno == errno.ESRCH:
log.debug("Failed to set scheduling parameters of PID %d, the task vanished."
% pid)
else:
log.error("Failed to set scheduling parameters of PID %d: %s"
% (pid, e))
def get_priority_max(self, sched):
return schedutils.get_priority_max(sched)
def show_priority_limits(policy):
print "%-32.32s: %d/%d" % ("%s min/max priority" % schedutils.schedstr(policy),
schedutils.get_priority_min(policy),
schedutils.get_priority_max(policy))
def show_priority_limits(policy):
print "%-32.32s: %d/%d" % ("%s min/max priority" %
schedutils.schedstr(policy),
schedutils.get_priority_min(policy),
schedutils.get_priority_max(policy))