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bpo-40826: Add _Py_EnsureTstateNotNULL() macro (GH-20571)

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Add _Py_EnsureTstateNotNULL(tstate) macro: call Py_FatalError() if
tstate is NULL, the error message contains the current function name.
This commit is contained in:
Victor Stinner 2020-06-01 16:02:40 +02:00 • committed by GitHub
parent db64f12e4d
commit 3026cad59b
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GPG key ID: 4AEE18F83AFDEB23
6 changed files with 40 additions and 31 deletions
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18
Python/pystate.c
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@ -39,16 +39,6 @@ extern "C" {
_Py_atomic_store_relaxed(&(gilstate)->tstate_current, \
(uintptr_t)(value))
static void
ensure_tstate_not_null(const char *func, PyThreadState *tstate)
{
if (tstate == NULL) {
_Py_FatalErrorFunc(func,
"current thread state is NULL (released GIL?)");
}
}
/* Forward declarations */
static PyThreadState *_PyGILState_GetThisThreadState(struct _gilstate_runtime_state *gilstate);
static void _PyThreadState_Delete(PyThreadState *tstate, int check_current);
@ -431,7 +421,7 @@ PyInterpreterState *
PyInterpreterState_Get(void)
{
PyThreadState *tstate = _PyThreadState_GET();
ensure_tstate_not_null(__func__, tstate);
_Py_EnsureTstateNotNULL(tstate);
PyInterpreterState *interp = tstate->interp;
if (interp == NULL) {
Py_FatalError("no current interpreter");
@ -846,7 +836,7 @@ static void
tstate_delete_common(PyThreadState *tstate,
struct _gilstate_runtime_state *gilstate)
{
ensure_tstate_not_null(__func__, tstate);
_Py_EnsureTstateNotNULL(tstate);
PyInterpreterState *interp = tstate->interp;
if (interp == NULL) {
Py_FatalError("NULL interpreter");
@ -897,7 +887,7 @@ PyThreadState_Delete(PyThreadState *tstate)
void
_PyThreadState_DeleteCurrent(PyThreadState *tstate)
{
ensure_tstate_not_null(__func__, tstate);
_Py_EnsureTstateNotNULL(tstate);
struct _gilstate_runtime_state *gilstate = &tstate->interp->runtime->gilstate;
tstate_delete_common(tstate, gilstate);
_PyRuntimeGILState_SetThreadState(gilstate, NULL);
@ -975,7 +965,7 @@ PyThreadState *
PyThreadState_Get(void)
{
PyThreadState *tstate = _PyThreadState_GET();
ensure_tstate_not_null(__func__, tstate);
_Py_EnsureTstateNotNULL(tstate);
return tstate;
}