| | import linecache |
| | import traceback |
| |
|
| | from . import base_futures |
| | from . import coroutines |
| |
|
| |
|
| | def _task_repr_info(task): |
| | info = base_futures._future_repr_info(task) |
| |
|
| | if task._must_cancel: |
| | |
| | info[0] = 'cancelling' |
| |
|
| | info.insert(1, 'name=%r' % task.get_name()) |
| |
|
| | coro = coroutines._format_coroutine(task._coro) |
| | info.insert(2, f'coro=<{coro}>') |
| |
|
| | if task._fut_waiter is not None: |
| | info.insert(3, f'wait_for={task._fut_waiter!r}') |
| | return info |
| |
|
| |
|
| | def _task_get_stack(task, limit): |
| | frames = [] |
| | if hasattr(task._coro, 'cr_frame'): |
| | |
| | f = task._coro.cr_frame |
| | elif hasattr(task._coro, 'gi_frame'): |
| | |
| | f = task._coro.gi_frame |
| | elif hasattr(task._coro, 'ag_frame'): |
| | |
| | f = task._coro.ag_frame |
| | else: |
| | |
| | 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='') |
| |
|