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/* Interface to random parts in ceval.c */
#ifndef Py_CEVAL_H
#define Py_CEVAL_H
#ifdef __cplusplus
extern "C" {
#endif
/* PyEval_CallObjectWithKeywords(), PyEval_CallObject(), PyEval_CallFunction
* and PyEval_CallMethod are deprecated. Since they are officially part of the
* stable ABI (PEP 384), they must be kept for backward compatibility.
* PyObject_Call(), PyObject_CallFunction() and PyObject_CallMethod() are
* recommended to call a callable object.
*/
#ifndef PYPY_VERSION
Py_DEPRECATED(3.9) PyAPI_FUNC(PyObject *) PyEval_CallObjectWithKeywords(
PyObject *callable,
PyObject *args,
PyObject *kwargs);
#endif
/* Deprecated since PyEval_CallObjectWithKeywords is deprecated */
#define PyEval_CallObject(callable, arg) \
PyEval_CallObjectWithKeywords(callable, arg, (PyObject *)NULL)
Py_DEPRECATED(3.9) PyAPI_FUNC(PyObject *) PyEval_CallFunction(
PyObject *callable, const char *format, ...);
Py_DEPRECATED(3.9) PyAPI_FUNC(PyObject *) PyEval_CallMethod(
PyObject *obj, const char *name, const char *format, ...);
/* Interface for threads.
A module that plans to do a blocking system call (or something else
that lasts a long time and doesn't touch Python data) can allow other
threads to run as follows:
...preparations here...
Py_BEGIN_ALLOW_THREADS
...blocking system call here...
Py_END_ALLOW_THREADS
...interpret result here...
The Py_BEGIN_ALLOW_THREADS/Py_END_ALLOW_THREADS pair expands to a
{}-surrounded block.
To leave the block in the middle (e.g., with return), you must insert
a line containing Py_BLOCK_THREADS before the return, e.g.
if (...premature_exit...) {
Py_BLOCK_THREADS
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
An alternative is:
Py_BLOCK_THREADS
if (...premature_exit...) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
Py_UNBLOCK_THREADS
For convenience, that the value of 'errno' is restored across
Py_END_ALLOW_THREADS and Py_BLOCK_THREADS.
WARNING: NEVER NEST CALLS TO Py_BEGIN_ALLOW_THREADS AND
Py_END_ALLOW_THREADS!!!
Note that not yet all candidates have been converted to use this
mechanism!
*/
#define Py_BEGIN_ALLOW_THREADS { \
PyThreadState *_save; \
_save = PyEval_SaveThread();
#define Py_BLOCK_THREADS PyEval_RestoreThread(_save);
#define Py_UNBLOCK_THREADS _save = PyEval_SaveThread();
#define Py_END_ALLOW_THREADS PyEval_RestoreThread(_save); \
}
#ifndef PYPY_VERSION
PyAPI_FUNC(const char *) PyEval_GetFuncName(PyObject *);
#endif
PyAPI_FUNC(const char *) PyEval_GetFuncDesc(PyObject *);
#ifdef __cplusplus
}
#endif
#endif /* !Py_CEVAL_H */
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