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gh-109693: Use pyatomic.h for signal module (gh-110480)

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Donghee Na 2023-10-10 08:26:29 +09:00 • committed by GitHub
parent bdbe43c7d0
commit 67e8d416cc
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3 changed files with 26 additions and 27 deletions
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16
Include/internal/pycore_signal.h
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@ -10,7 +10,6 @@ extern "C" {
# error "this header requires Py_BUILD_CORE define"
#endif
#include "pycore_atomic.h" // _Py_atomic_address
#include <signal.h> // NSIG
@ -38,12 +37,10 @@ PyAPI_FUNC(void) _Py_RestoreSignals(void);
#define INVALID_FD (-1)
struct _signals_runtime_state {
volatile struct {
_Py_atomic_int tripped;
/* func is atomic to ensure that PyErr_SetInterrupt is async-signal-safe
* (even though it would probably be otherwise, anyway).
*/
_Py_atomic_address func;
struct {
// tripped and func should be accessed using atomic ops.
int tripped;
PyObject* func;
} handlers[Py_NSIG];
volatile struct {
@ -63,8 +60,9 @@ struct _signals_runtime_state {
#endif
} wakeup;
/* Speed up sigcheck() when none tripped */
_Py_atomic_int is_tripped;
/* Speed up sigcheck() when none tripped.
is_tripped should be accessed using atomic ops. */
int is_tripped;
/* These objects necessarily belong to the main interpreter. */
PyObject *default_handler;