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Added uasyncio

Added playground module
This commit is contained in:
slush0 2016-03-31 20:13:06 +02:00 committed by Pavol Rusnak
parent 8493da5f97
commit 0b0e6186c6
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GPG Key ID: 91F3B339B9A02A3D
7 changed files with 586 additions and 2 deletions

3
emu.sh
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@ -1,3 +1,4 @@
#!/bin/bash
cd `dirname $0`/src
../vendor/micropython/unix/micropython main.py
../vendor/micropython/unix/micropython -O0 -X heapsize=100000 main.py

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@ -2,4 +2,5 @@ import layout
layout.show_send('1BitkeyP2nDd5oa64x7AjvBbbwST54W5Zmx2', 110.126967)
while True: pass
import playground
playground.run()

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# import time
import gc
import utime
import logging
import uasyncio
from uasyncio import core
from TrezorUi import Display
from . import utils
d = Display()
logging.basicConfig(level=logging.INFO)
loop = uasyncio.get_event_loop()
if __debug__:
def meminfo():
mem_free = gc.mem_free()
gc.collect()
print("free_mem: %s/%s, collect: %s" % (mem_free, gc.mem_free(), gc.collect()))
loop.call_later(1, meminfo)
# meminfo()
def animate(col):
col %= 0xff
col += 0x0f
f = open('../assets/lock.toi', 'r')
d.icon(10, 170, f.read(), utils.rgb2color(0, col, 0), 0xffff)
loop.call_later(0.5, animate, col)
def animate2(col):
col %= 0xff
col += 0x0f
# yield True
f = open('../assets/lock.toi', 'r')
d.icon(170, 170, f.read(), utils.rgb2color(col, 0, 0), 0xffff)
loop.call_later(0.1, animate2, col)
sec = 0
event = None
def sekunda(x):
global sec
print('Sekunda %d' % sec)
if sec == x:
loop.call_soon(loop.button_cb, 'levy')
loop.button_cb = None
sec += 1
loop.call_later(1, sekunda, x)
# global event
# event = wait_for()
# event.__next__()
def wait_for():
print("Jsem tady")
ktery = yield core.IOButton()
print(ktery)
print("Po cekani na event")
def run():
'''
d = Display()
d.bar(0, 0, 240, 240, 0)
f = open('../assets/trezor.toi', 'r')
d.image(0, 0, f.read())
'''
# logging.basicConfig(level=logging.INFO)
sekunda(3)
loop.call_soon(animate, 0x0000)
loop.call_soon(animate2, 0x00ff)
loop.call_soon(wait_for())
loop.run_forever()
loop.close()

2
src/playground/utils.py Normal file
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def rgb2color(r, g, b):
return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | ((b & 0xF8) >> 3)

206
src/uasyncio/__init__.py Normal file
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import errno
import uselect as select
import usocket as _socket
from uasyncio.core import *
class EpollEventLoop(EventLoop):
def __init__(self):
EventLoop.__init__(self)
self.poller = select.poll()
self.objmap = {}
def add_reader(self, fd, cb, *args):
if __debug__:
log.debug("add_reader%s", (fd, cb, args))
if args:
self.poller.register(fd, select.POLLIN)
self.objmap[fd] = (cb, args)
else:
self.poller.register(fd, select.POLLIN)
self.objmap[fd] = cb
def remove_reader(self, fd):
if __debug__:
log.debug("remove_reader(%s)", fd)
self.poller.unregister(fd)
del self.objmap[fd]
def add_writer(self, fd, cb, *args):
if __debug__:
log.debug("add_writer%s", (fd, cb, args))
if args:
self.poller.register(fd, select.POLLOUT)
self.objmap[fd] = (cb, args)
else:
self.poller.register(fd, select.POLLOUT)
self.objmap[fd] = cb
def remove_writer(self, fd):
if __debug__:
log.debug("remove_writer(%s)", fd)
try:
self.poller.unregister(fd)
self.objmap.pop(fd, None)
except OSError as e:
# StreamWriter.awrite() first tries to write to an fd,
# and if that succeeds, yield IOWrite may never be called
# for that fd, and it will never be added to poller. So,
# ignore such error.
if e.args[0] != errno.ENOENT:
raise
def wait(self, delay):
if __debug__:
log.debug("epoll.wait(%d)", delay)
# We need one-shot behavior (second arg of 1 to .poll())
if delay == -1:
res = self.poller.poll(-1, 1)
else:
res = self.poller.poll(int(delay * 1000), 1)
#log.debug("epoll result: %s", res)
for fd, ev in res:
cb = self.objmap[fd]
if __debug__:
log.debug("Calling IO callback: %r", cb)
if isinstance(cb, tuple):
cb[0](*cb[1])
else:
self.call_soon(cb)
class StreamReader:
def __init__(self, s):
self.s = s
def read(self, n=-1):
yield IORead(self.s)
while True:
res = self.s.read(n)
if res is not None:
break
log.warn("Empty read")
if not res:
yield IOReadDone(self.s)
return res
def readline(self):
if __debug__:
log.debug("StreamReader.readline()")
yield IORead(self.s)
# if __debug__:
# log.debug("StreamReader.readline(): after IORead: %s", s)
while True:
res = self.s.readline()
if res is not None:
break
log.warn("Empty read")
if not res:
yield IOReadDone(self.s)
if __debug__:
log.debug("StreamReader.readline(): res: %s", res)
return res
def aclose(self):
yield IOReadDone(self.s)
self.s.close()
def __repr__(self):
return "<StreamReader %r>" % self.s
class StreamWriter:
def __init__(self, s, extra):
self.s = s
self.extra = extra
def awrite(self, buf):
# This method is called awrite (async write) to not proliferate
# incompatibility with original asyncio. Unlike original asyncio
# whose .write() method is both not a coroutine and guaranteed
# to return immediately (which means it has to buffer all the
# data), this method is a coroutine.
sz = len(buf)
if __debug__:
log.debug("StreamWriter.awrite(): spooling %d bytes", sz)
while True:
res = self.s.write(buf)
# If we spooled everything, return immediately
if res == sz:
if __debug__:
log.debug("StreamWriter.awrite(): completed spooling %d bytes", res)
return
if res is None:
res = 0
if __debug__:
log.debug("StreamWriter.awrite(): spooled partial %d bytes", res)
assert res < sz
buf = buf[res:]
sz -= res
yield IOWrite(self.s)
#assert s2.fileno() == self.s.fileno()
if __debug__:
log.debug("StreamWriter.awrite(): can write more")
def aclose(self):
yield IOWriteDone(self.s)
self.s.close()
def get_extra_info(self, name, default=None):
return self.extra.get(name, default)
def __repr__(self):
return "<StreamWriter %r>" % self.s
def open_connection(host, port):
if __debug__:
log.debug("open_connection(%s, %s)", host, port)
s = _socket.socket()
s.setblocking(False)
ai = _socket.getaddrinfo(host, port)
addr = ai[0][4]
try:
s.connect(addr)
except OSError as e:
if e.args[0] != errno.EINPROGRESS:
raise
if __debug__:
log.debug("open_connection: After connect")
yield IOWrite(s)
# if __debug__:
# assert s2.fileno() == s.fileno()
if __debug__:
log.debug("open_connection: After iowait: %s", s)
return StreamReader(s), StreamWriter(s, {})
def start_server(client_coro, host, port, backlog=10):
log.debug("start_server(%s, %s)", host, port)
s = _socket.socket()
s.setblocking(False)
ai = _socket.getaddrinfo(host, port)
addr = ai[0][4]
s.setsockopt(_socket.SOL_SOCKET, _socket.SO_REUSEADDR, 1)
s.bind(addr)
s.listen(backlog)
while True:
if __debug__:
log.debug("start_server: Before accept")
yield IORead(s)
if __debug__:
log.debug("start_server: After iowait")
s2, client_addr = s.accept()
s2.setblocking(False)
if __debug__:
log.debug("start_server: After accept: %s", s2)
extra = {"peername": client_addr}
yield client_coro(StreamReader(s2), StreamWriter(s2, extra))
import uasyncio.core
uasyncio.core._event_loop_class = EpollEventLoop

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src/uasyncio/core.py Normal file
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try:
import utime as time
except ImportError:
import time
import uheapq as heapq
import logging
log = logging.getLogger("asyncio")
type_gen = type((lambda: (yield))())
class EventLoop:
def __init__(self):
self.q = []
self.cnt = 0
self.button_cb = None
def time(self):
return time.time()
def create_task(self, coro):
# CPython 3.4.2
self.call_at(0, coro)
# CPython asyncio incompatibility: we don't return Task object
def call_soon(self, callback, *args):
self.call_at(0, callback, *args)
def call_later(self, delay, callback, *args):
self.call_at(self.time() + delay, callback, *args)
def call_at(self, time, callback, *args):
# Including self.cnt is a workaround per heapq docs
if __debug__:
log.debug("Scheduling %s", (time, self.cnt, callback, args))
heapq.heappush(self.q, (time, self.cnt, callback, args))
# print(self.q)
self.cnt += 1
def wait(self, delay):
# Default wait implementation, to be overriden in subclasses
# with IO scheduling
log.debug("Sleeping for: %s", delay)
time.sleep(delay)
def run_forever(self):
while True:
if self.q:
t, cnt, cb, args = heapq.heappop(self.q)
if __debug__:
log.debug("Next coroutine to run: %s", (t, cnt, cb, args))
# __main__.mem_info()
tnow = self.time()
delay = t - tnow
if delay > 0:
self.wait(delay)
else:
self.wait(-1)
# Assuming IO completion scheduled some tasks
continue
if callable(cb):
cb(*args)
else:
delay = 0
try:
if args == ():
args = (None,)
if __debug__:
log.debug("Coroutine %s send args: %s", cb, args)
ret = cb.send(*args)
if __debug__:
log.debug("Coroutine %s yield result: %s", cb, ret)
if isinstance(ret, SysCall1):
arg = ret.arg
if isinstance(ret, Sleep):
delay = arg
elif isinstance(ret, IORead):
# self.add_reader(ret.obj.fileno(), lambda self, c, f: self.call_soon(c, f), self, cb, ret.obj)
# self.add_reader(ret.obj.fileno(), lambda c, f: self.call_soon(c, f), cb, ret.obj)
# self.add_reader(arg.fileno(), lambda cb: self.call_soon(cb), cb)
self.add_reader(arg.fileno(), cb)
continue
elif isinstance(ret, IOWrite):
# self.add_writer(arg.fileno(), lambda cb: self.call_soon(cb), cb)
self.add_writer(arg.fileno(), cb)
continue
elif isinstance(ret, IOReadDone):
self.remove_reader(arg.fileno())
elif isinstance(ret, IOWriteDone):
self.remove_writer(arg.fileno())
elif isinstance(ret, StopLoop):
return arg
elif isinstance(ret, IOButton):
print("TADY")
self.button_cb = cb
continue
elif isinstance(ret, type_gen):
self.call_soon(ret)
elif ret is None:
# Just reschedule
pass
else:
assert False, "Unsupported coroutine yield value: %r (of type %r)" % (ret, type(ret))
except StopIteration as e:
if __debug__:
log.debug("Coroutine finished: %s", cb)
continue
self.call_later(delay, cb, *args)
def run_until_complete(self, coro):
def _run_and_stop():
yield from coro
yield StopLoop(0)
self.call_soon(_run_and_stop())
self.run_forever()
def close(self):
pass
class SysCall:
def __init__(self, *args):
self.args = args
def handle(self):
raise NotImplementedError
# Optimized syscall with 1 arg
class SysCall1(SysCall):
def __init__(self, arg):
self.arg = arg
class IOButton(SysCall):
pass
class Sleep(SysCall1):
pass
class StopLoop(SysCall1):
pass
class IORead(SysCall1):
pass
class IOWrite(SysCall1):
pass
class IOReadDone(SysCall1):
pass
class IOWriteDone(SysCall1):
pass
_event_loop = None
_event_loop_class = EventLoop
def get_event_loop():
global _event_loop
if _event_loop is None:
_event_loop = _event_loop_class()
return _event_loop
def sleep(secs):
yield Sleep(secs)
def coroutine(f):
return f
#
# The functions below are deprecated in uasyncio, and provided only
# for compatibility with CPython asyncio
#
def async(coro, loop=_event_loop):
_event_loop.call_soon(coro)
# CPython asyncio incompatibility: we don't return Task object
return coro
# CPython asyncio incompatibility: Task is a function, not a class (for efficiency)
def Task(coro, loop=_event_loop):
# Same as async()
_event_loop.call_soon(coro)

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src/uasyncio/queues.py Normal file
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from collections.deque import deque
from uasyncio.core import sleep
class QueueEmpty(Exception):
"""Exception raised by get_nowait()."""
class QueueFull(Exception):
"""Exception raised by put_nowait()."""
class Queue:
"""A queue, useful for coordinating producer and consumer coroutines.
If maxsize is less than or equal to zero, the queue size is infinite. If it
is an integer greater than 0, then "yield from put()" will block when the
queue reaches maxsize, until an item is removed by get().
Unlike the standard library Queue, you can reliably know this Queue's size
with qsize(), since your single-threaded uasyncio application won't be
interrupted between calling qsize() and doing an operation on the Queue.
"""
_attempt_delay = 0.1
def __init__(self, maxsize=0):
self.maxsize = maxsize
self._queue = deque()
def _get(self):
return self._queue.popleft()
def get(self):
"""Returns generator, which can be used for getting (and removing)
an item from a queue.
Usage::
item = yield from queue.get()
"""
while not self._queue:
yield from sleep(self._attempt_delay)
return self._get()
def get_nowait(self):
"""Remove and return an item from the queue.
Return an item if one is immediately available, else raise QueueEmpty.
"""
if not self._queue:
raise QueueEmpty()
return self._get()
def _put(self, val):
self._queue.append(val)
def put(self, val):
"""Returns generator which can be used for putting item in a queue.
Usage::
yield from queue.put(item)
"""
while self.qsize() > self.maxsize and self.maxsize:
yield from sleep(self._attempt_delay)
self._put(val)
def put_nowait(self, val):
"""Put an item into the queue without blocking.
If no free slot is immediately available, raise QueueFull.
"""
if self.qsize() >= self.maxsize and self.maxsize:
raise QueueFull()
self._put(val)
def qsize(self):
"""Number of items in the queue."""
return len(self._queue)
def empty(self):
"""Return True if the queue is empty, False otherwise."""
return not self._queue
def full(self):
"""Return True if there are maxsize items in the queue.
Note: if the Queue was initialized with maxsize=0 (the default),
then full() is never True.
"""
if self.maxsize <= 0:
return False
else:
return self.qsize() >= self.maxsize