ref: 0e97c8d1d7dd8dc2ba800656939106721b1d816f
dir: /sys/src/cmd/python/Python/sigcheck.c/
/* Sigcheck is similar to intrcheck() but sets an exception when an
interrupt occurs. It can't be in the intrcheck.c file since that
file (and the whole directory it is in) doesn't know about objects
or exceptions. It can't be in errors.c because it can be
overridden (at link time) by a more powerful version implemented in
signalmodule.c. */
#include "Python.h"
/* ARGSUSED */
int
PyErr_CheckSignals(void)
{
if (!PyOS_InterruptOccurred())
return 0;
PyErr_SetNone(PyExc_KeyboardInterrupt);
return -1;
}