| 1 | n/a | import linecache |
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| 2 | n/a | import traceback |
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| 3 | n/a | |
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| 4 | n/a | from . import base_futures |
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| 5 | n/a | from . import coroutines |
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| 6 | n/a | |
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| 7 | n/a | |
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| 8 | n/a | def _task_repr_info(task): |
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| 9 | n/a | info = base_futures._future_repr_info(task) |
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| 10 | n/a | |
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| 11 | n/a | if task._must_cancel: |
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| 12 | n/a | # replace status |
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| 13 | n/a | info[0] = 'cancelling' |
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| 14 | n/a | |
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| 15 | n/a | coro = coroutines._format_coroutine(task._coro) |
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| 16 | n/a | info.insert(1, 'coro=<%s>' % coro) |
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| 17 | n/a | |
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| 18 | n/a | if task._fut_waiter is not None: |
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| 19 | n/a | info.insert(2, 'wait_for=%r' % task._fut_waiter) |
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| 20 | n/a | return info |
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| 21 | n/a | |
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| 22 | n/a | |
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| 23 | n/a | def _task_get_stack(task, limit): |
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| 24 | n/a | frames = [] |
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| 25 | n/a | try: |
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| 26 | n/a | # 'async def' coroutines |
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| 27 | n/a | f = task._coro.cr_frame |
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| 28 | n/a | except AttributeError: |
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| 29 | n/a | f = task._coro.gi_frame |
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| 30 | n/a | if f is not None: |
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| 31 | n/a | while f is not None: |
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| 32 | n/a | if limit is not None: |
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| 33 | n/a | if limit <= 0: |
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| 34 | n/a | break |
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| 35 | n/a | limit -= 1 |
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| 36 | n/a | frames.append(f) |
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| 37 | n/a | f = f.f_back |
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| 38 | n/a | frames.reverse() |
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| 39 | n/a | elif task._exception is not None: |
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| 40 | n/a | tb = task._exception.__traceback__ |
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| 41 | n/a | while tb is not None: |
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| 42 | n/a | if limit is not None: |
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| 43 | n/a | if limit <= 0: |
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| 44 | n/a | break |
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| 45 | n/a | limit -= 1 |
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| 46 | n/a | frames.append(tb.tb_frame) |
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| 47 | n/a | tb = tb.tb_next |
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| 48 | n/a | return frames |
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| 49 | n/a | |
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| 50 | n/a | |
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| 51 | n/a | def _task_print_stack(task, limit, file): |
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| 52 | n/a | extracted_list = [] |
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| 53 | n/a | checked = set() |
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| 54 | n/a | for f in task.get_stack(limit=limit): |
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| 55 | n/a | lineno = f.f_lineno |
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| 56 | n/a | co = f.f_code |
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| 57 | n/a | filename = co.co_filename |
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| 58 | n/a | name = co.co_name |
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| 59 | n/a | if filename not in checked: |
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| 60 | n/a | checked.add(filename) |
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| 61 | n/a | linecache.checkcache(filename) |
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| 62 | n/a | line = linecache.getline(filename, lineno, f.f_globals) |
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| 63 | n/a | extracted_list.append((filename, lineno, name, line)) |
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| 64 | n/a | exc = task._exception |
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| 65 | n/a | if not extracted_list: |
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| 66 | n/a | print('No stack for %r' % task, file=file) |
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| 67 | n/a | elif exc is not None: |
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| 68 | n/a | print('Traceback for %r (most recent call last):' % task, |
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| 69 | n/a | file=file) |
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| 70 | n/a | else: |
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| 71 | n/a | print('Stack for %r (most recent call last):' % task, |
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| 72 | n/a | file=file) |
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| 73 | n/a | traceback.print_list(extracted_list, file=file) |
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| 74 | n/a | if exc is not None: |
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| 75 | n/a | for line in traceback.format_exception_only(exc.__class__, exc): |
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| 76 | n/a | print(line, file=file, end='') |
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