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"""
Access to the time module's high-resolution monotonic clock
"""
import math
from rpython.rlib.rarithmetic import (
r_longlong, ovfcheck_float_to_longlong)
from rpython.rlib import rfloat
from pypy.interpreter.error import oefmt
SECS_TO_NS = 10 ** 9
MS_TO_NS = 10 ** 6
US_TO_NS = 10 ** 3
def monotonic(space):
"""Call time.monotonic and return a unwrapped float"""
# used in module.select
from pypy.module.time import interp_time
return interp_time._monotonic(space)
def timestamp_w(space, w_secs):
if space.isinstance_w(w_secs, space.w_float):
secs = space.float_w(w_secs)
if math.isnan(secs):
raise oefmt(space.w_ValueError, "timestamp is nan")
result_float = math.ceil(secs * SECS_TO_NS)
try:
return ovfcheck_float_to_longlong(result_float)
except OverflowError:
raise oefmt(space.w_OverflowError,
"timestamp %R too large to convert to C _PyTime_t", w_secs)
else:
try:
sec = space.bigint_w(w_secs).tolonglong()
result = sec * r_longlong(SECS_TO_NS)
except OverflowError:
raise oefmt(space.w_OverflowError,
"timestamp %R too large to convert to C _PyTime_t", w_secs)
return result
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