I took the Receive out and replaced it with a simple call to
PyStackless_Schedule.
static int EventHook(void)
{
PyStackless_Schedule(Py_None, 0);
return 0;
}
...
Py_SetProgramName(argv[0]);
Py_InitializeEx(0);
if (!Py_IsInitialized())
{
std::cerr << "Python initialization failed" << std::endl;
return;
}
PySys_SetArgv(argc, argv);
PyOS_InputHook = EventHook;
...
// stacklessMain returns when program is shutdown.
PyStackless_CallMethod_Main(oMainModule.ptr(), "stacklessMain", 0);
...
This is the lldb stacktrace
frame #0: 0x0000000100ea30a3 Python`PyStackless_Schedule + 51
frame #1: 0x0000000100155fd9 main`EventHook() + 25 at
pythonInterperter.cpp:472
frame #2: 0x0000000103dd5e25 readline.so`call_readline + 293
frame #3: 0x0000000100dfa3c3 Python`PyOS_Readline + 179
frame #4: 0x0000000100e92882 Python`builtin_raw_input + 434
frame #5: 0x0000000100e95d88 Python`PyEval_EvalFrame_value + 3832
frame #6: 0x0000000100e94d38 Python`PyEval_EvalFrameEx_slp + 376
frame #7: 0x0000000100e9744c Python`PyEval_EvalFrame_value + 9660
frame #8: 0x0000000100e94d38 Python`PyEval_EvalFrameEx_slp + 376
frame #9: 0x0000000100e9744c Python`PyEval_EvalFrame_value + 9660
frame #10: 0x0000000100e94d38 Python`PyEval_EvalFrameEx_slp + 376
frame #11: 0x0000000100e9e9e1 Python`slp_frame_dispatch_top + 49
frame #12: 0x0000000100ea2772 Python`slp_run_tasklet + 226
frame #13: 0x0000000100e9e0fc Python`slp_eval_frame + 348
frame #14: 0x0000000100e9e083 Python`slp_eval_frame + 227
frame #15: 0x0000000100e9e083 Python`slp_eval_frame + 227
.....
frame #719: 0x0000000100e9e083 Python`slp_eval_frame + 227
frame #720: 0x0000000100e9e083 Python`slp_eval_frame + 227
frame #721: 0x0000000100ea3801 Python`PyStackless_CallMethod_Main + 433
frame #722: 0x00000001001588e3
main`PythonThread::operator(this=0x0000000101506940)() + 1187 at
pythonInterperter.cpp:555
frame #723: 0x000000010015761c
main`boost::detail::thread_data<PythonThread>::run(this=0x0000000101506740)
+ 28 at thread.hpp:117
frame #724: 0x00000001010ff24a libboost_thread-mt.dylib`thread_proxy +
186
frame #725: 0x00007fff863fb899 libsystem_pthread.dylib`_pthread_body +
138
frame #726: 0x00007fff863fb72a libsystem_pthread.dylib`_pthread_start +
137
On Tue, Sep 9, 2014 at 9:17 PM, Richard Tew <[email protected]> wrote:
> If you have a crash when you call receive, then you likely have larger
> problems than when the right time to call schedule is.
>
> I don't think it's possible to divine what is going wrong, and expect
> you need to provide a reproduction case.
>
> Cheers
>
> On 9/10/14, Robert Babiak <[email protected]> wrote:
> > Dear wise stackless list, I need some of your wisdom.
> >
> > I am trying to make raw_input play nice with the stackless scheduler and
> > not block with my embedded stackless.
> >
> > I set the PyOS_InputHook to get what amounts to an idle event but when I
> > call PyStackless_Schedule(PY_None, 0) it crashes (no stackless
> symbols...)
> >
> > Is there something I need to check to know if it is safe to call the
> > scheduler from C?
> >
> > In general when is it safe to call PyStackless_Schedule?
> >
> > I tried to call my BeNice to block and get woken up later, but this also
> > crashes when trying to receive on my BeNice channel.
> >
> > - Thanks Rob.
> > --
> > Life: Bah, I will worry about it when it is over.
> >
>
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>
--
Life: Bah, I will worry about it when it is over.
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