How does python handle the signal?

Question

What is the signal processing workflow in python? I install a signal handler when a signal occurs, how does python call my function? Does the OS describe this as a C program? If I am in python C-sample, does it break immediately?

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Now it’s clear to me how the python process is handled. When you set the signal with the signal module, the module registers the signal_handler function (see $ Src / Modules / signalmodule.c), which sets your handler and puts it as 1 ( Handlers[sig_num].tripped = 1;), and then calls Py_AddPendingCall to tell the python translator. The python interpreter will call Py_MakePendingCalls to call PyErr_CheckSignals, which calls your function in the main loop (see $ Src / Python / ceval.c). let me know if you want to talk about it: [e-mail]

Answer 1

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Answer 2

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