artiq/artiq/sim/time.py
2014-09-05 12:03:22 +08:00

72 lines
1.9 KiB
Python

from operator import itemgetter
from artiq.language.units import *
from artiq.language import core as core_language
class SequentialTimeContext:
def __init__(self, current_time):
self.current_time = current_time
self.block_duration = 0*s
def take_time(self, amount):
self.current_time += amount
self.block_duration += amount
class ParallelTimeContext:
def __init__(self, current_time):
self.current_time = current_time
self.block_duration = 0*s
def take_time(self, amount):
if amount > self.block_duration:
self.block_duration = amount
class Manager:
def __init__(self):
self.stack = [SequentialTimeContext(0*s)]
self.timeline = []
def enter_sequential(self):
new_context = SequentialTimeContext(self.get_time())
self.stack.append(new_context)
def enter_parallel(self):
new_context = ParallelTimeContext(self.get_time())
self.stack.append(new_context)
def exit(self):
old_context = self.stack.pop()
self.take_time(old_context.block_duration)
def take_time(self, duration):
self.stack[-1].take_time(duration)
def get_time(self):
return self.stack[-1].current_time
def set_time(self, t):
dt = t - self.get_time()
if dt < 0*s:
raise ValueError("Attempted to go back in time")
self.take_time(dt)
def event(self, description):
self.timeline.append((self.get_time(), description))
def format_timeline(self):
r = ""
prev_time = 0*s
for time, description in sorted(self.timeline, key=itemgetter(0)):
r += "@{:10} (+{:10}) ".format(str(time), str(time-prev_time))
for item in description:
r += "{:16}".format(str(item))
r += "\n"
prev_time = time
return r
manager = Manager()
core_language.set_time_manager(manager)