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Title: asyncio with two interpreter instances
Type: behavior Stage:
Components: asyncio Versions:
Status: open Resolution:
Dependencies: Superseder:
Assigned To: Nosy List: asvetlov, eric.snow, mbadaire, yselivanov
Priority: normal Keywords:

Created on 2022-04-04 19:57 by mbadaire, last changed 2022-04-11 14:59 by admin.

Messages (1)
msg416694 - (view) Author: Matthias Badaire (mbadaire) Date: 2022-04-04 19:57
I have an issue when using asyncio and two interpreter instances each launched and used in a seperated thread. 
I am getting a asyncio loop for each thread .However asyncio is getting me the same loop because of this code in get_running_loop. Indeed when I have two interpreter, the ts_id would be the same for both my threads and therefore I will get the cached value of the first thread. cached_running_holder being static, it is the same value for all instances of interpreter.
Maybe we should check if we are in the same interpreter or same thread ,.. I am not sure how it could be fixed. 

get_running_loop(PyObject **loop)
    PyObject *rl;

    PyThreadState *ts = _PyThreadState_GET();
    uint64_t ts_id = PyThreadState_GetID(ts);
    if (ts_id == cached_running_holder_tsid && cached_running_holder != NULL) {

If it does not make sense, I have some sample code but it is not just 10 lines.
Date User Action Args
2022-04-11 14:59:58adminsetgithub: 91375
2022-04-04 20:38:00JelleZijlstrasetnosy: + eric.snow
2022-04-04 19:57:08mbadairecreate