203cc489c6
uasyncio.core: wait_for: Add support for cancelling I/O-bound coros.
...
Coros which removed from normal scheduling queue (and possibly put into
another queue, like I/O queue here) are marked with .pend_throw(False).
If wait_for() cancels such a coro, it is explicitly scheduled for execution,
so they actually could process pending exception (coro's exception handler
should take care of removing it from another queue and related clean up).
2017-12-14 19:09:02 +02:00
d19253a222
uasyncio.core: Implement wait_for() function for CPU-bound coroutines.
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This requires a new .pend_throw() generator method on MicroPython side.
Timing out of I/O-bound coroutines doesn't work yet.
2017-12-03 02:09:10 +02:00
afa6192501
uasyncio.core: Store currently executed task as an attribute of event loop.
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Currently executed task is a top-level coroutine scheduled in the event
loop (note that sub-coroutines aren't scheduled in the event loop and
are executed implicitly by yield from/await, driven by top-level coro).
2017-12-03 00:22:17 +02:00
62fbfa9965
uasyncio.core: Add yield call to remove coro from scheduling.
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yield False won't reschedule current coroutine to be run again. This is
useful when coro is put on some waiting queue (and is similar to what
yield IORead/yield IOWrite do).
2017-10-28 02:14:02 +03:00
eef054d98a
uasyncio.core: Make I/O scheduling fair wrt to computational scheduling.
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If there is a coroutine to run immediately (with wait delay <= 0),
uasyncio.core never called .wait() method, which is required to
process I/O events (and schedule coroutines waiting for them). So
now, call .wait(0) even if there's a coroutine to run immediately.
2017-08-20 17:04:31 +03:00
b9540e4afe
uasyncio.core: Use "uasyncio.core" logger.
2017-06-08 02:48:04 +03:00
e13e139f51
uasyncio.core: Don't feed old send arguments into next coro invocation.
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As all current syscalls don't return any value, there's nothing to feed
actually.
2017-05-23 01:26:08 +03:00
241e7b1a3b
uasyncio.core: Add stop() method for loop.
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To allow to stop loop from a callback function.
2017-05-22 13:49:27 +03:00
bf327f755a
uasyncio.core: Fix args handling for call_soon/call_later/call_later_ms.
2017-05-22 13:21:54 +03:00
4fa29d867a
uasyncio.core: Remove call_at() which takes absolute second time.
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uasyncio uses different timebase than CPython's asyncio, so absolute
time scheduling compatible with it is impossible. Instead, there's
call_at_() which schedules using modular millisecond time.
2017-05-16 21:53:29 +03:00
ad73ee3043
uasyncio.core: Use finalized name for call_later_ms().
2017-05-16 21:53:29 +03:00
61392cb641
uasyncio.core: Remove unused Sleep syscall.
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It's unused since since sleep() was switched to yield an integer for
delay.
2017-05-16 21:45:13 +03:00
3ef991c115
uasyncio.core: Remove legacy commented code for add_reader/add_writer.
2017-05-14 16:38:32 +03:00
aea501add6
uasyncio.core: Import utime unconditionally, uasyncio depends on MicroPython.
2017-05-01 16:09:34 +03:00
b2f69eb23b
uasyncio.core: Add set_debug() method, don't import logging if not called.
2017-05-01 16:04:28 +03:00
bb3057ffed
uasyncio.core: Fix scheduling in the presense of I/O completion callbacks.
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wait() may finish prematurely due to I/O completion, and schedule new,
earlier than before tasks to run. So, after call to wait(), we need to
check current time and time of head task, and continue to wait if needed.
Recently introduced provisional utimeq.peektime() is used to optimize
querying time of a head task.
2017-04-08 01:34:57 +03:00
55b4161512
uasyncio.core: Set lower default queue len and allow to override it.
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The default is set to be under 0.5K on 32-bit system. A queue length
can be passed to get_event_loop() to override it.
2017-02-15 03:27:59 +03:00
0f5d5cead7
uasyncio: Add minimum esp8266 support
2017-01-01 18:17:17 -08:00
9d5919dd1c
uasyncio.core: Implement sleep_ms as an awaitable object instead of coro.
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This allows to await it without heap allocation.
2016-12-26 19:51:11 +03:00
793bc05be5
uasyncio.core: Report unknown syscalls.
2016-12-26 19:11:38 +03:00
24125191ce
uasyncio.core: Convert Sleep syscall arg (seconds) to milliseconds.
2016-12-23 00:35:42 +03:00
222758f0c2
uasyncio.core: Switch to dedicated utimeq class.
...
Allows zero-allocation scheduling of tasks. As long as tasks don't use
await/yield from with coroutines, and don't allocate memory themselves,
there will be no allocation and GC.
2016-12-22 13:04:09 +03:00
f24493b1eb
uasyncio.core: create_task: Fix scheduling.
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Should start with zero delay, not at zero absolute time.
2016-11-13 15:01:51 +03:00
b3c2d0f51e
uasyncio.core: Add additional debug output control.
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__debug__ isn't flexible enough, if you don't disable it, there's huge
memory allocation.
2016-11-13 14:59:49 +03:00
02a6625a00
uasyncio.core: Introduce "trailing _" functions which avoid arg un/packing.
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They just take tuple of arguments instead of *args. In most cases, that
will be () singleton.
2016-11-13 14:59:49 +03:00
f5ae66973d
uasyncio.core: Remove heapq aggregate structure workaround.
2016-11-13 01:44:35 +03:00
d9e72f1d40
uasyncio.core: Switch to ticks_ms() as timing source.
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This makes uasyncio.core compatible with baremetal/embedded ports.
Includes switching to "uheapq timeq" for task queue.
2016-11-13 01:32:32 +03:00
38885fbf4f
uasyncio.core: Protect another case of debug logging with "if __debug__:".
2016-07-04 12:58:40 +03:00
26290883a2
uasyncio.core: call_soon(): Use current time, not zero time.
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Using static zero time may become a problem when using wrap-around time
sources, like utime.ticks_ms().
2016-07-04 12:57:53 +03:00
0e0fffc138
uasyncio.core: Optimize case of resuming coro with no args.
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Don't create a new tuple with empty arguments for coro.send(), just use
next(coro).
2016-07-04 12:57:08 +03:00
e6ca37faa8
uasyncio.core: async() was renamed to ensure_future() upstream.
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The old name is deprecated since CPyton 3.4.4. That's great relief, because
CPython has special parser hacks to support both 3.5-style "async" keyword,
and still allow it be used as an identifier in other contexts. MicroPython
lacks such hacks, so "async" is SyntaxError as a function name with the latest
versions which implement async keyword.
2016-05-28 02:36:41 +03:00
c60ff8125b
uasyncio.core: Avoid wrapping coroutines to lambdas for add_reader/writer.
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add_reader/writer default behavior is to schedule "callback" on I/O
completion via call_soon(), there's no need to have lambda for that.
2015-12-12 00:12:19 +02:00
460dd59b16
uasyncio.core: Don't pass any callback args to add_reader/add_writer.
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Instead, capture all needed param in closure. Due do bug in MicroPython's
handling of default args to lambdas, helper function is used.
2015-12-09 00:40:04 +02:00
f9eed2340d
uasyncio.core: Optimize for syscalls with single args.
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Avoids allocating argument tuples.
2015-12-05 22:23:10 +02:00
db6c9fbaa9
uasyncio.core: Follow builtin "time" module rename to "utime".
2014-12-17 00:33:04 +02:00
b88cb425f8
uasyncio.core: Typo fix in recently added .create_task() method.
2014-11-13 06:41:05 +02:00
acbc5e462f
uasyncio.core: Implement EventLoop.create_task(), new method in Python 3.4.2.
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This method allows to schedule a coroutine in a loop without confusing globals
like async() or Task().
2014-11-04 02:52:31 +02:00
9bb4f6b3b1
uasyncio.core: Implement async() and Task() for CPython compatibility.
2014-11-04 02:52:31 +02:00
cbaf0d3b57
uasyncio.core: Log only if __debug__==True (i.e. no optimization).
2014-10-26 00:20:45 +03:00
0bb2f38aaf
uasyncio: Use uheapq instead of heapq.
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Conflicts:
uasyncio/uasyncio/__init__.py
2014-10-24 01:16:15 +03:00
4a884ef849
uasyncio: Split off uasyncio.core dist module.
2014-10-24 01:00:53 +03:00
Paul Sokolovsky