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bpo-38644: Add _PyObject_Call() (GH-17089)

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* Add pycore_call.h internal header file.
* Add _PyObject_Call(): PyObject_Call() with tstate
* Add _PyObject_CallNoArgTstate(): _PyObject_CallNoArg() with tstate
* Add _PyObject_FastCallDictTstate(): _PyObject_FastCallDict()
  with tstate
* _PyObject_Call_Prepend() now takes tstate
* Replace _PyObject_FastCall() calls
  with _PyObject_VectorcallTstate() calls
This commit is contained in:
Victor Stinner 2019-11-14 13:36:21 +01:00 • committed by GitHub
parent b9e681261c
commit 4d231bcc77
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GPG key ID: 4AEE18F83AFDEB23
10 changed files with 217 additions and 138 deletions
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15
Python/bltinmodule.c
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@ -4,6 +4,7 @@
#include <ctype.h>
#include "ast.h"
#undef Yield /* undefine macro conflicting with <winbase.h> */
#include "pycore_pyerrors.h"
#include "pycore_pystate.h"
#include "pycore_tupleobject.h"
@ -1254,23 +1255,23 @@ map_next(mapobject *lz)
{
PyObject *small_stack[_PY_FASTCALL_SMALL_STACK];
PyObject **stack;
Py_ssize_t niters, nargs, i;
PyObject *result = NULL;
PyThreadState *tstate = _PyThreadState_GET();
niters = PyTuple_GET_SIZE(lz->iters);
const Py_ssize_t niters = PyTuple_GET_SIZE(lz->iters);
if (niters <= (Py_ssize_t)Py_ARRAY_LENGTH(small_stack)) {
stack = small_stack;
}
else {
stack = PyMem_Malloc(niters * sizeof(stack[0]));
if (stack == NULL) {
PyErr_NoMemory();
_PyErr_NoMemory(tstate);
return NULL;
}
}
nargs = 0;
for (i=0; i < niters; i++) {
Py_ssize_t nargs = 0;
for (Py_ssize_t i=0; i < niters; i++) {
PyObject *it = PyTuple_GET_ITEM(lz->iters, i);
PyObject *val = Py_TYPE(it)->tp_iternext(it);
if (val == NULL) {
@ -1280,10 +1281,10 @@ map_next(mapobject *lz)
nargs++;
}
result = _PyObject_FastCall(lz->func, stack, nargs);
result = _PyObject_VectorcallTstate(tstate, lz->func, stack, nargs, NULL);
exit:
for (i=0; i < nargs; i++) {
for (Py_ssize_t i=0; i < nargs; i++) {
Py_DECREF(stack[i]);
}
if (stack != small_stack) {