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Preview: base_tasks.py Size: 2.61 KB

/lib64/python3.12/asyncio/base_tasks.py

import linecache
import reprlib
import traceback

from . import base_futures
from . import coroutines


def _task_repr_info(task):
    info = base_futures._future_repr_info(task)

    if task.cancelling() and not task.done():
        # replace status
        info[0] = 'cancelling'

    info.insert(1, 'name=%r' % task.get_name())

    if task._fut_waiter is not None:
        info.insert(2, f'wait_for={task._fut_waiter!r}')

    if task._coro:
        coro = coroutines._format_coroutine(task._coro)
        info.insert(2, f'coro=<{coro}>')

    return info


@reprlib.recursive_repr()
def _task_repr(task):
    info = ' '.join(_task_repr_info(task))
    return f'<{task.__class__.__name__} {info}>'


def _task_get_stack(task, limit):
    frames = []
    if hasattr(task._coro, 'cr_frame'):
        # case 1: 'async def' coroutines
        f = task._coro.cr_frame
    elif hasattr(task._coro, 'gi_frame'):
        # case 2: legacy coroutines
        f = task._coro.gi_frame
    elif hasattr(task._coro, 'ag_frame'):
        # case 3: async generators
        f = task._coro.ag_frame
    else:
        # case 4: unknown objects
        f = None
    if f is not None:
        while f is not None:
            if limit is not None:
                if limit <= 0:
                    break
                limit -= 1
            frames.append(f)
            f = f.f_back
        frames.reverse()
    elif task._exception is not None:
        tb = task._exception.__traceback__
        while tb is not None:
            if limit is not None:
                if limit <= 0:
                    break
                limit -= 1
            frames.append(tb.tb_frame)
            tb = tb.tb_next
    return frames


def _task_print_stack(task, limit, file):
    extracted_list = []
    checked = set()
    for f in task.get_stack(limit=limit):
        lineno = f.f_lineno
        co = f.f_code
        filename = co.co_filename
        name = co.co_name
        if filename not in checked:
            checked.add(filename)
            linecache.checkcache(filename)
        line = linecache.getline(filename, lineno, f.f_globals)
        extracted_list.append((filename, lineno, name, line))

    exc = task._exception
    if not extracted_list:
        print(f'No stack for {task!r}', file=file)
    elif exc is not None:
        print(f'Traceback for {task!r} (most recent call last):', file=file)
    else:
        print(f'Stack for {task!r} (most recent call last):', file=file)

    traceback.print_list(extracted_list, file=file)
    if exc is not None:
        for line in traceback.format_exception_only(exc.__class__, exc):
            print(line, file=file, end='')

Name	Size	Perms	Modified	Actions
__pycache__ DIR	-	drwxr-xr-x	2026-01-08 23:02:23	Edit Download recursive recursive
base_events.py	76.73 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
base_futures.py	1.93 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
base_subprocess.py	8.66 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
base_tasks.py	2.61 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
constants.py	1.38 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
coroutines.py	3.26 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
events.py	28.65 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
exceptions.py	1.71 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
format_helpers.py	2.35 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
futures.py	14.00 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
locks.py	18.55 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
log.py	124 B	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
mixins.py	481 B	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
proactor_events.py	32.71 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
protocols.py	6.79 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
queues.py	7.79 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
runners.py	7.06 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
selector_events.py	47.20 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
sslproto.py	31.15 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
staggered.py	6.91 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
streams.py	26.97 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
subprocess.py	7.56 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
taskgroups.py	9.33 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
tasks.py	36.49 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
threads.py	790 B	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
timeouts.py	5.20 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
transports.py	10.47 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
trsock.py	2.42 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
unix_events.py	51.88 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
windows_events.py	31.82 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
windows_utils.py	4.94 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
__init__.py	1.19 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
__main__.py	3.41 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive

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