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- /* Interface to random parts in ceval.c */
- #ifndef Py_CEVAL_H
- #define Py_CEVAL_H
- #ifdef __cplusplus
- extern "C" {
- #endif
- PyAPI_FUNC(PyObject *) PyEval_EvalCode(PyObject *, PyObject *, PyObject *);
- PyAPI_FUNC(PyObject *) PyEval_EvalCodeEx(PyObject *co,
- PyObject *globals,
- PyObject *locals,
- PyObject *const *args, int argc,
- PyObject *const *kwds, int kwdc,
- PyObject *const *defs, int defc,
- PyObject *kwdefs, PyObject *closure);
- /* 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.
- */
- Py_DEPRECATED(3.9) PyAPI_FUNC(PyObject *) PyEval_CallObjectWithKeywords(
- PyObject *callable,
- PyObject *args,
- PyObject *kwargs);
- /* Deprecated since PyEval_CallObjectWithKeywords is deprecated */
- #define PyEval_CallObject(callable, arg) \
- PyEval_CallObjectWithKeywords((callable), (arg), _PyObject_CAST(_Py_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, ...);
- PyAPI_FUNC(PyObject *) PyEval_GetBuiltins(void);
- PyAPI_FUNC(PyObject *) PyEval_GetGlobals(void);
- PyAPI_FUNC(PyObject *) PyEval_GetLocals(void);
- PyAPI_FUNC(PyFrameObject *) PyEval_GetFrame(void);
- PyAPI_FUNC(int) Py_AddPendingCall(int (*func)(void *), void *arg);
- PyAPI_FUNC(int) Py_MakePendingCalls(void);
- /* Protection against deeply nested recursive calls
- In Python 3.0, this protection has two levels:
- * normal anti-recursion protection is triggered when the recursion level
- exceeds the current recursion limit. It raises a RecursionError, and sets
- the "overflowed" flag in the thread state structure. This flag
- temporarily *disables* the normal protection; this allows cleanup code
- to potentially outgrow the recursion limit while processing the
- RecursionError.
- * "last chance" anti-recursion protection is triggered when the recursion
- level exceeds "current recursion limit + 50". By construction, this
- protection can only be triggered when the "overflowed" flag is set. It
- means the cleanup code has itself gone into an infinite loop, or the
- RecursionError has been mistakingly ignored. When this protection is
- triggered, the interpreter aborts with a Fatal Error.
- In addition, the "overflowed" flag is automatically reset when the
- recursion level drops below "current recursion limit - 50". This heuristic
- is meant to ensure that the normal anti-recursion protection doesn't get
- disabled too long.
- Please note: this scheme has its own limitations. See:
- http://mail.python.org/pipermail/python-dev/2008-August/082106.html
- for some observations.
- */
- PyAPI_FUNC(void) Py_SetRecursionLimit(int);
- PyAPI_FUNC(int) Py_GetRecursionLimit(void);
- PyAPI_FUNC(int) Py_EnterRecursiveCall(const char *where);
- PyAPI_FUNC(void) Py_LeaveRecursiveCall(void);
- PyAPI_FUNC(const char *) PyEval_GetFuncName(PyObject *);
- PyAPI_FUNC(const char *) PyEval_GetFuncDesc(PyObject *);
- PyAPI_FUNC(PyObject *) PyEval_EvalFrame(PyFrameObject *);
- PyAPI_FUNC(PyObject *) PyEval_EvalFrameEx(PyFrameObject *f, int exc);
- /* 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!
- */
- PyAPI_FUNC(PyThreadState *) PyEval_SaveThread(void);
- PyAPI_FUNC(void) PyEval_RestoreThread(PyThreadState *);
- Py_DEPRECATED(3.9) PyAPI_FUNC(int) PyEval_ThreadsInitialized(void);
- Py_DEPRECATED(3.9) PyAPI_FUNC(void) PyEval_InitThreads(void);
- /* PyEval_AcquireLock() and PyEval_ReleaseLock() are part of stable ABI.
- * They will be removed from this header file in the future version.
- * But they will be remained in ABI until Python 4.0.
- */
- Py_DEPRECATED(3.2) PyAPI_FUNC(void) PyEval_AcquireLock(void);
- Py_DEPRECATED(3.2) PyAPI_FUNC(void) PyEval_ReleaseLock(void);
- PyAPI_FUNC(void) PyEval_AcquireThread(PyThreadState *tstate);
- PyAPI_FUNC(void) PyEval_ReleaseThread(PyThreadState *tstate);
- #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); \
- }
- /* Masks and values used by FORMAT_VALUE opcode. */
- #define FVC_MASK 0x3
- #define FVC_NONE 0x0
- #define FVC_STR 0x1
- #define FVC_REPR 0x2
- #define FVC_ASCII 0x3
- #define FVS_MASK 0x4
- #define FVS_HAVE_SPEC 0x4
- #ifndef Py_LIMITED_API
- # define Py_CPYTHON_CEVAL_H
- # include "cpython/ceval.h"
- # undef Py_CPYTHON_CEVAL_H
- #endif
- #ifdef __cplusplus
- }
- #endif
- #endif /* !Py_CEVAL_H */
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