Fix/python asyncio #826
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Fix/python asyncio #826
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Apart from the code comments, could you please detail in the commit messages what this does, and especially why we want it? I don't have context about this change. However, the code changes look something reasonable; thanks for the work! |
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its the fix for python 3.10-3.11. alongside latest python patch releases were made breaking change for lower level asyncio api. Also seems like using asyncio api |
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| } handlers[] = { | ||
| { "create_task", &ctx_data->loop_create_task }, | ||
| { "add_reader", &ctx_data->loop_add_reader }, | ||
| { "remove_reader", &ctx_data->loop_remove_reader }, | ||
| { "call_soon", &ctx_data->loop_call_soon }, | ||
| { "run_until_complete", &ctx_data->loop_run_until_complete }, | ||
| { "create_future", &ctx_data->loop_create_future }, | ||
| }; | ||
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| loop = NULL; | ||
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| asyncio = PyImport_ImportModule("asyncio"); | ||
| if (nxt_slow_path(asyncio == NULL)) { | ||
| nxt_unit_alert(NULL, "Python failed to import module 'asyncio'"); | ||
| nxt_python_print_exception(); | ||
| goto fail; | ||
| } | ||
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| event_loop_func = "get_loop"; | ||
| runner_class = "Runner"; | ||
| runner_ref = PyDict_GetItemString(PyModule_GetDict(asyncio), | ||
| runner_class); | ||
| if (nxt_slow_path(runner_ref == NULL)) { | ||
| nxt_unit_alert(NULL, | ||
| "Python failed to get '%s' from module 'asyncio'", | ||
| runner_class); | ||
| goto fail; | ||
| } | ||
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| runner = PyObject_CallObject(runner_ref, NULL); | ||
| if (nxt_slow_path(runner == NULL)) { | ||
| nxt_unit_alert(NULL, "Python failed to call 'asyncio.%s'", | ||
| runner_class); | ||
| goto fail; | ||
| } | ||
| ctx_data->runner = runner; | ||
| loop_ref = PyObject_GetAttrString(runner, event_loop_func); | ||
| loop = PyObject_CallObject(loop_ref, NULL); | ||
| if (nxt_slow_path(runner == NULL)) { | ||
| nxt_unit_alert(NULL, "Python failed to call 'Runner.%s'", | ||
| event_loop_func); | ||
| goto fail; | ||
| } | ||
| for (i = 0; i < nxt_nitems(handlers); i++) { | ||
| obj = PyObject_GetAttrString(loop, handlers[i].key); | ||
| if (nxt_slow_path(obj == NULL)) { | ||
| nxt_unit_alert(NULL, "Python failed to get 'loop.%s'", | ||
| handlers[i].key); | ||
| goto fail; | ||
| } | ||
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| *handlers[i].handler = obj; | ||
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| if (nxt_slow_path(PyCallable_Check(obj) == 0)) { | ||
| nxt_unit_alert(NULL, "'loop.%s' is not a callable object", | ||
| handlers[i].key); | ||
| goto fail; | ||
| } | ||
| } | ||
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| obj = PyObject_CallObject(ctx_data->loop_create_future, NULL); | ||
| if (nxt_slow_path(obj == NULL)) { | ||
| nxt_unit_alert(NULL, "Python failed to create Future "); | ||
| nxt_python_print_exception(); | ||
| goto fail; | ||
| } | ||
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| ctx_data->quit_future = obj; | ||
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| obj = PyObject_GetAttrString(ctx_data->quit_future, "set_result"); | ||
| if (nxt_slow_path(obj == NULL)) { | ||
| nxt_unit_alert(NULL, "Python failed to get 'future.set_result'"); | ||
| goto fail; | ||
| } | ||
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| ctx_data->quit_future_set_result = obj; | ||
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| if (nxt_slow_path(PyCallable_Check(obj) == 0)) { | ||
| nxt_unit_alert(NULL, "'future.set_result' is not a callable object"); | ||
| goto fail; | ||
| } | ||
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| Py_DECREF(loop); | ||
| Py_DECREF(asyncio); | ||
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| *pdata = ctx_data; | ||
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| return NXT_UNIT_OK; | ||
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| fail: | ||
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| nxt_python_asgi_ctx_data_free(ctx_data); | ||
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| Py_XDECREF(loop); | ||
| Py_XDECREF(asyncio); | ||
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| return NXT_UNIT_ERROR; | ||
| } | ||
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| #else |
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This function can also be compacted to a single one with small preprocessor in it.
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Fixes for python asgi