Python uselect.POLLOUT Examples
The following are 9
code examples of uselect.POLLOUT().
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Example #1
| Source File: client_w.py From micropython-samples with MIT License | 6 votes |
|
def run():
global success
ok = True
try:
while ok:
res = poller.ipoll(10)
for sock, ev in res:
if ev & select.POLLOUT:
r = sock.send(b'0123456789\n')
print(ev, r)
# On ESP8266 if another task closes the socket the poll object
# never triggers. uasyncio expects it to trigger with POLLHUP or
# (POLLOUT & POLLERR or POLLOUT & POLLHUP)
# If server fails gets OSError on both platforms.
else: # But on Unix socket closure produces ev == 32
print('Terminating event:', ev) # What is 32??
ok = False
break
await asyncio.sleep(1)
await asyncio.sleep(0)
except OSError:
print('Got OSError') # Happens on ESP8266 if server fails
success = True # Detected socket closure or error by OSError or event
Example #2
| Source File: __init__.py From uPyCam with Apache License 2.0 | 5 votes |
|
def add_writer(self, sock, cb, *args):
if DEBUG and __debug__:
log.debug("add_writer%s", (sock, cb, args))
if args:
self.poller.register(sock, select.POLLOUT)
self.objmap[id(sock)] = (cb, args)
else:
self.poller.register(sock, select.POLLOUT)
self.objmap[id(sock)] = cb
Example #3
| Source File: __init__.py From micropython-samples with MIT License | 5 votes |
|
def add_writer(self, sock, cb, *args):
if DEBUG and __debug__:
log.debug("add_writer%s", (sock, cb, args))
if args:
self.poller.register(sock, select.POLLOUT)
self.objmap[id(sock)] = (cb, args)
else:
self.poller.register(sock, select.POLLOUT)
self.objmap[id(sock)] = cb
Example #4
| Source File: __init__.py From microdot with MIT License | 5 votes |
|
def add_writer(self, sock, cb, *args):
if DEBUG and __debug__:
log.debug("add_writer%s", (sock, cb, args))
if args:
self.poller.register(sock, select.POLLOUT)
self.objmap[id(sock)] = (cb, args)
else:
self.poller.register(sock, select.POLLOUT)
self.objmap[id(sock)] = cb
Example #5
| Source File: __init__.py From pysmartnode with MIT License | 5 votes |
|
def add_writer(self, sock, cb, *args):
if DEBUG and __debug__:
log.debug("add_writer%s", (sock, cb, args))
if args:
self.poller.register(sock, select.POLLOUT)
self.objmap[id(sock)] = (cb, args)
else:
self.poller.register(sock, select.POLLOUT)
self.objmap[id(sock)] = cb
Example #6
| Source File: __init__.py From micropython-async with MIT License | 5 votes |
|
def add_writer(self, sock, cb, *args):
if DEBUG and __debug__:
log.debug("add_writer%s", (sock, cb, args))
# HACK Should read
# self._register(sock, select.POLLOUT)
# Temporary workround for https://github.com/micropython/micropython/issues/5172
# The following is not compliant with POSIX or with the docs
self._register(sock, select.POLLOUT | select.POLLHUP | select.POLLERR) # t35tB0t add HUP and ERR to force LWIP revents
if args:
self.wrobjmap[id(sock)] = (cb, args)
else:
self.wrobjmap[id(sock)] = cb
Example #7
| Source File: __init__.py From micropython-async with MIT License | 5 votes |
|
def remove_writer(self, sock):
if DEBUG and __debug__:
log.debug("remove_writer(%s)", sock)
self._unregister(sock, self.wrobjmap, select.POLLOUT)
Example #8
| Source File: __init__.py From microhomie with MIT License | 5 votes |
|
def add_writer(self, sock, cb, *args):
if DEBUG and __debug__:
log.debug("add_writer%s", (sock, cb, args))
if args:
self.poller.register(sock, select.POLLOUT)
self.objmap[id(sock)] = (cb, args)
else:
self.poller.register(sock, select.POLLOUT)
self.objmap[id(sock)] = cb
Example #9
| Source File: __init__.py From micropython-async with MIT License | 4 votes |
|
def wait(self, delay):
if DEBUG and __debug__:
log.debug("poll.wait(%d)", delay)
# We need one-shot behavior (second arg of 1 to .poll())
res = self.poller.ipoll(delay, 1)
#log.debug("poll result: %s", res)
for sock, ev in res:
if ev & select.POLLOUT:
cb = self.wrobjmap[id(sock)]
if cb is None:
continue # Not yet ready.
# Invalidate objmap: can get adverse timing in fast_io whereby add_writer
# is not called soon enough. Ignore poll events occurring before we are
# ready to handle them.
self.wrobjmap[id(sock)] = None
if ev & (select.POLLHUP | select.POLLERR):
# These events are returned even if not requested, and
# are sticky, i.e. will be returned again and again.
# If the caller doesn't do proper error handling and
# unregister this sock, we'll busy-loop on it, so we
# as well can unregister it now "just in case".
self.remove_writer(sock)
if DEBUG and __debug__:
log.debug("Calling IO callback: %r", cb)
if isinstance(cb, tuple):
cb[0](*cb[1])
else:
prev = cb.pend_throw(None) # Enable task to run.
#if isinstance(prev, Exception):
#print('Put back exception')
#cb.pend_throw(prev)
self._call_io(cb) # Put coro onto runq (or ioq if one exists)
if ev & select.POLLIN:
cb = self.rdobjmap[id(sock)]
if cb is None:
continue
self.rdobjmap[id(sock)] = None
if ev & (select.POLLHUP | select.POLLERR):
# These events are returned even if not requested, and
# are sticky, i.e. will be returned again and again.
# If the caller doesn't do proper error handling and
# unregister this sock, we'll busy-loop on it, so we
# as well can unregister it now "just in case".
self.remove_reader(sock)
if DEBUG and __debug__:
log.debug("Calling IO callback: %r", cb)
if isinstance(cb, tuple):
cb[0](*cb[1])
else:
prev = cb.pend_throw(None) # Enable task to run.
#if isinstance(prev, Exception):
#cb.pend_throw(prev)
#print('Put back exception')
self._call_io(cb)
