import time

class Timing(object):
  def __init__(self, prefix="", on_exit=None, enabled=True): self.prefix, self.on_exit, self.enabled = prefix, on_exit, enabled
  def __enter__(self): self.st = time.perf_counter_ns()
  def __exit__(self, exc_type, exc_val, exc_tb):
    self.et = time.perf_counter_ns() - self.st
    if self.enabled: print(f"{self.prefix}{self.et*1e-6:.2f} ms"+(self.on_exit(self.et) if self.on_exit else ""))

def enable_early_exec():
  import subprocess, multiprocessing
  qin: multiprocessing.Queue = multiprocessing.Queue()
  qout: multiprocessing.Queue = multiprocessing.Queue()
  def _early_exec_process(qin, qout):
    while 1:
      path, inp = qin.get()
      qout.put(subprocess.check_output(path, input=inp))
  p = multiprocessing.Process(target=_early_exec_process, args=(qin, qout))
  p.daemon = True
  p.start()
  def early_exec(x):
    qin.put(x)
    return qout.get()
  return early_exec

def proc(itermaker, q):
  for x in itermaker(): q.put(x)
  q.close()

def cross_process(itermaker, maxsize=8):
  # TODO: use cloudpickle for itermaker
  import multiprocessing
  q: multiprocessing.Queue = multiprocessing.Queue(maxsize)
  p = multiprocessing.Process(target=proc, args=(itermaker, q))
  p.daemon = True
  p.start()

  # TODO: write tests and handle exit case
  while 1: yield q.get()

6bdbdfa46f80209c6dbc9a2c8f202e3c987c19b4
<mask token>


class Timing(object):

    def __init__(self, prefix='', on_exit=None, enabled=True):
        self.prefix, self.on_exit, self.enabled = prefix, on_exit, enabled

    def __enter__(self):
        self.st = time.perf_counter_ns()

    def __exit__(self, exc_type, exc_val, exc_tb):
        self.et = time.perf_counter_ns() - self.st
        if self.enabled:
            print(f'{self.prefix}{self.et * 1e-06:.2f} ms' + (self.on_exit(
                self.et) if self.on_exit else ''))


<mask token>

<mask token>


class Timing(object):

    def __init__(self, prefix='', on_exit=None, enabled=True):
        self.prefix, self.on_exit, self.enabled = prefix, on_exit, enabled

    def __enter__(self):
        self.st = time.perf_counter_ns()

    def __exit__(self, exc_type, exc_val, exc_tb):
        self.et = time.perf_counter_ns() - self.st
        if self.enabled:
            print(f'{self.prefix}{self.et * 1e-06:.2f} ms' + (self.on_exit(
                self.et) if self.on_exit else ''))


def enable_early_exec():
    import subprocess, multiprocessing
    qin: multiprocessing.Queue = multiprocessing.Queue()
    qout: multiprocessing.Queue = multiprocessing.Queue()

    def _early_exec_process(qin, qout):
        while 1:
            path, inp = qin.get()
            qout.put(subprocess.check_output(path, input=inp))
    p = multiprocessing.Process(target=_early_exec_process, args=(qin, qout))
    p.daemon = True
    p.start()

    def early_exec(x):
        qin.put(x)
        return qout.get()
    return early_exec


def proc(itermaker, q):
    for x in itermaker():
        q.put(x)
    q.close()


<mask token>

<mask token>


class Timing(object):

    def __init__(self, prefix='', on_exit=None, enabled=True):
        self.prefix, self.on_exit, self.enabled = prefix, on_exit, enabled

    def __enter__(self):
        self.st = time.perf_counter_ns()

    def __exit__(self, exc_type, exc_val, exc_tb):
        self.et = time.perf_counter_ns() - self.st
        if self.enabled:
            print(f'{self.prefix}{self.et * 1e-06:.2f} ms' + (self.on_exit(
                self.et) if self.on_exit else ''))


def enable_early_exec():
    import subprocess, multiprocessing
    qin: multiprocessing.Queue = multiprocessing.Queue()
    qout: multiprocessing.Queue = multiprocessing.Queue()

    def _early_exec_process(qin, qout):
        while 1:
            path, inp = qin.get()
            qout.put(subprocess.check_output(path, input=inp))
    p = multiprocessing.Process(target=_early_exec_process, args=(qin, qout))
    p.daemon = True
    p.start()

    def early_exec(x):
        qin.put(x)
        return qout.get()
    return early_exec


def proc(itermaker, q):
    for x in itermaker():
        q.put(x)
    q.close()


def cross_process(itermaker, maxsize=8):
    import multiprocessing
    q: multiprocessing.Queue = multiprocessing.Queue(maxsize)
    p = multiprocessing.Process(target=proc, args=(itermaker, q))
    p.daemon = True
    p.start()
    while 1:
        yield q.get()

import time


class Timing(object):

    def __init__(self, prefix='', on_exit=None, enabled=True):
        self.prefix, self.on_exit, self.enabled = prefix, on_exit, enabled

    def __enter__(self):
        self.st = time.perf_counter_ns()

    def __exit__(self, exc_type, exc_val, exc_tb):
        self.et = time.perf_counter_ns() - self.st
        if self.enabled:
            print(f'{self.prefix}{self.et * 1e-06:.2f} ms' + (self.on_exit(
                self.et) if self.on_exit else ''))


def enable_early_exec():
    import subprocess, multiprocessing
    qin: multiprocessing.Queue = multiprocessing.Queue()
    qout: multiprocessing.Queue = multiprocessing.Queue()

    def _early_exec_process(qin, qout):
        while 1:
            path, inp = qin.get()
            qout.put(subprocess.check_output(path, input=inp))
    p = multiprocessing.Process(target=_early_exec_process, args=(qin, qout))
    p.daemon = True
    p.start()

    def early_exec(x):
        qin.put(x)
        return qout.get()
    return early_exec


def proc(itermaker, q):
    for x in itermaker():
        q.put(x)
    q.close()


def cross_process(itermaker, maxsize=8):
    import multiprocessing
    q: multiprocessing.Queue = multiprocessing.Queue(maxsize)
    p = multiprocessing.Process(target=proc, args=(itermaker, q))
    p.daemon = True
    p.start()
    while 1:
        yield q.get()

import time

class Timing(object):
  def __init__(self, prefix="", on_exit=None, enabled=True): self.prefix, self.on_exit, self.enabled = prefix, on_exit, enabled
  def __enter__(self): self.st = time.perf_counter_ns()
  def __exit__(self, exc_type, exc_val, exc_tb):
    self.et = time.perf_counter_ns() - self.st
    if self.enabled: print(f"{self.prefix}{self.et*1e-6:.2f} ms"+(self.on_exit(self.et) if self.on_exit else ""))

def enable_early_exec():
  import subprocess, multiprocessing
  qin: multiprocessing.Queue = multiprocessing.Queue()
  qout: multiprocessing.Queue = multiprocessing.Queue()
  def _early_exec_process(qin, qout):
    while 1:
      path, inp = qin.get()
      qout.put(subprocess.check_output(path, input=inp))
  p = multiprocessing.Process(target=_early_exec_process, args=(qin, qout))
  p.daemon = True
  p.start()
  def early_exec(x):
    qin.put(x)
    return qout.get()
  return early_exec

def proc(itermaker, q):
  for x in itermaker(): q.put(x)
  q.close()

def cross_process(itermaker, maxsize=8):
  # TODO: use cloudpickle for itermaker
  import multiprocessing
  q: multiprocessing.Queue = multiprocessing.Queue(maxsize)
  p = multiprocessing.Process(target=proc, args=(itermaker, q))
  p.daemon = True
  p.start()

  # TODO: write tests and handle exit case
  while 1: yield q.get()
