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bpo-41675: Modernize siginterrupt calls #22028

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Sep 2, 2020
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bpo-41675: Modernize siginterrupt calls #22028

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bf86c06
bpo-41675: Modernize siginterrupt calls
pablogsal Aug 31, 2020
34ad2cd
fixup! bpo-41675: Modernize siginterrupt calls
pablogsal Sep 2, 2020
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3 changes: 3 additions & 0 deletions Misc/NEWS.d/next/Core and Builtins/2020-08-31-14-53-17.bpo-41675.VSoqWU.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
The implementation of :func:`signal.siginterrupt` now uses :c:func:`sigaction`
(if it is available in the system) instead of the deprecated :c:func:`siginterrupt`.
Patch by Pablo Galindo.
14 changes: 13 additions & 1 deletion Modules/signalmodule.c
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Original file line number Diff line number Diff line change
Expand Up @@ -664,7 +664,19 @@ signal_siginterrupt_impl(PyObject *module, int signalnum, int flag)
"signal number out of range");
return NULL;
}
if (siginterrupt(signalnum, flag)<0) {
#ifdef HAVE_SIGACTION
struct sigaction act;
(void) sigaction(signalnum, NULL, &act);
if (flag) {
act.sa_flags &= ~SA_RESTART;
}
else {
act.sa_flags |= SA_RESTART;
}
if (sigaction(signalnum, &act, NULL) < 0) {
#else
if (siginterrupt(signalnum, flag) < 0) {
#endif
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
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