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| 1 | +#ifndef Py_INTERNAL_CEVAL_H |
| 2 | +#define Py_INTERNAL_CEVAL_H |
| 3 | +#ifdef __cplusplus |
| 4 | +extern "C" { |
| 5 | +#endif |
| 6 | + |
| 7 | +#ifndef Py_BUILD_CORE |
| 8 | +# error "this header requires Py_BUILD_CORE define" |
| 9 | +#endif |
| 10 | + |
| 11 | +/* Forward declarations */ |
| 12 | +struct pyruntimestate; |
| 13 | +struct _ceval_runtime_state; |
| 14 | + |
| 15 | +/* WASI has limited call stack. Python's recursion limit depends on code |
| 16 | + layout, optimization, and WASI runtime. Wasmtime can handle about 700-750 |
| 17 | + recursions, sometimes less. 600 is a more conservative limit. */ |
| 18 | +#ifndef Py_DEFAULT_RECURSION_LIMIT |
| 19 | +# ifdef __wasi__ |
| 20 | +# define Py_DEFAULT_RECURSION_LIMIT 600 |
| 21 | +# else |
| 22 | +# define Py_DEFAULT_RECURSION_LIMIT 1000 |
| 23 | +# endif |
| 24 | +#endif |
| 25 | + |
| 26 | +#include "pycore_interp.h" // PyInterpreterState.eval_frame |
| 27 | +#include "pycore_pystate.h" // _PyThreadState_GET() |
| 28 | + |
| 29 | + |
| 30 | +extern void _Py_FinishPendingCalls(PyThreadState *tstate); |
| 31 | +extern void _PyEval_InitRuntimeState(struct _ceval_runtime_state *); |
| 32 | +extern void _PyEval_InitState(struct _ceval_state *, PyThread_type_lock); |
| 33 | +extern void _PyEval_FiniState(struct _ceval_state *ceval); |
| 34 | +PyAPI_FUNC(void) _PyEval_SignalReceived(PyInterpreterState *interp); |
| 35 | +PyAPI_FUNC(int) _PyEval_AddPendingCall( |
| 36 | + PyInterpreterState *interp, |
| 37 | + int (*func)(void *), |
| 38 | + void *arg); |
| 39 | +PyAPI_FUNC(void) _PyEval_SignalAsyncExc(PyInterpreterState *interp); |
| 40 | +#ifdef HAVE_FORK |
| 41 | +extern PyStatus _PyEval_ReInitThreads(PyThreadState *tstate); |
| 42 | +#endif |
| 43 | + |
| 44 | +// Used by sys.call_tracing() |
| 45 | +extern PyObject* _PyEval_CallTracing(PyObject *func, PyObject *args); |
| 46 | + |
| 47 | +// Used by sys.get_asyncgen_hooks() |
| 48 | +extern PyObject* _PyEval_GetAsyncGenFirstiter(void); |
| 49 | +extern PyObject* _PyEval_GetAsyncGenFinalizer(void); |
| 50 | + |
| 51 | +// Used by sys.set_asyncgen_hooks() |
| 52 | +extern int _PyEval_SetAsyncGenFirstiter(PyObject *); |
| 53 | +extern int _PyEval_SetAsyncGenFinalizer(PyObject *); |
| 54 | + |
| 55 | +// Used by sys.get_coroutine_origin_tracking_depth() |
| 56 | +// and sys.set_coroutine_origin_tracking_depth() |
| 57 | +extern int _PyEval_GetCoroutineOriginTrackingDepth(void); |
| 58 | +extern int _PyEval_SetCoroutineOriginTrackingDepth(int depth); |
| 59 | + |
| 60 | +extern void _PyEval_Fini(void); |
| 61 | + |
| 62 | + |
| 63 | +extern PyObject* _PyEval_GetBuiltins(PyThreadState *tstate); |
| 64 | +extern PyObject* _PyEval_BuiltinsFromGlobals( |
| 65 | + PyThreadState *tstate, |
| 66 | + PyObject *globals); |
| 67 | + |
| 68 | + |
| 69 | +static inline PyObject* |
| 70 | +_PyEval_EvalFrame(PyThreadState *tstate, struct _PyInterpreterFrame *frame, int throwflag) |
| 71 | +{ |
| 72 | + if (tstate->interp->eval_frame == NULL) { |
| 73 | + return _PyEval_EvalFrameDefault(tstate, frame, throwflag); |
| 74 | + } |
| 75 | + return tstate->interp->eval_frame(tstate, frame, throwflag); |
| 76 | +} |
| 77 | + |
| 78 | +extern PyObject* |
| 79 | +_PyEval_Vector(PyThreadState *tstate, |
| 80 | + PyFunctionObject *func, PyObject *locals, |
| 81 | + PyObject* const* args, size_t argcount, |
| 82 | + PyObject *kwnames); |
| 83 | + |
| 84 | +extern int _PyEval_ThreadsInitialized(struct pyruntimestate *runtime); |
| 85 | +extern PyStatus _PyEval_InitGIL(PyThreadState *tstate); |
| 86 | +extern void _PyEval_FiniGIL(PyInterpreterState *interp); |
| 87 | + |
| 88 | +extern void _PyEval_ReleaseLock(PyThreadState *tstate); |
| 89 | + |
| 90 | +extern void _PyEval_DeactivateOpCache(void); |
| 91 | + |
| 92 | + |
| 93 | +/* --- _Py_EnterRecursiveCall() ----------------------------------------- */ |
| 94 | + |
| 95 | +#ifdef USE_STACKCHECK |
| 96 | +/* With USE_STACKCHECK macro defined, trigger stack checks in |
| 97 | + _Py_CheckRecursiveCall() on every 64th call to _Py_EnterRecursiveCall. */ |
| 98 | +static inline int _Py_MakeRecCheck(PyThreadState *tstate) { |
| 99 | + return (tstate->recursion_remaining-- <= 0 |
| 100 | + || (tstate->recursion_remaining & 63) == 0); |
| 101 | +} |
| 102 | +#else |
| 103 | +static inline int _Py_MakeRecCheck(PyThreadState *tstate) { |
| 104 | + return tstate->recursion_remaining-- <= 0; |
| 105 | +} |
| 106 | +#endif |
| 107 | + |
| 108 | +PyAPI_FUNC(int) _Py_CheckRecursiveCall( |
| 109 | + PyThreadState *tstate, |
| 110 | + const char *where); |
| 111 | + |
| 112 | +static inline int _Py_EnterRecursiveCallTstate(PyThreadState *tstate, |
| 113 | + const char *where) { |
| 114 | + return (_Py_MakeRecCheck(tstate) && _Py_CheckRecursiveCall(tstate, where)); |
| 115 | +} |
| 116 | + |
| 117 | +static inline int _Py_EnterRecursiveCall(const char *where) { |
| 118 | + PyThreadState *tstate = _PyThreadState_GET(); |
| 119 | + return _Py_EnterRecursiveCallTstate(tstate, where); |
| 120 | +} |
| 121 | + |
| 122 | +static inline void _Py_LeaveRecursiveCallTstate(PyThreadState *tstate) { |
| 123 | + tstate->recursion_remaining++; |
| 124 | +} |
| 125 | + |
| 126 | +static inline void _Py_LeaveRecursiveCall(void) { |
| 127 | + PyThreadState *tstate = _PyThreadState_GET(); |
| 128 | + _Py_LeaveRecursiveCallTstate(tstate); |
| 129 | +} |
| 130 | + |
| 131 | +extern struct _PyInterpreterFrame* _PyEval_GetFrame(void); |
| 132 | + |
| 133 | +extern PyObject* _Py_MakeCoro(PyFunctionObject *func); |
| 134 | + |
| 135 | +#ifdef __cplusplus |
| 136 | +} |
| 137 | +#endif |
| 138 | +#endif /* !Py_INTERNAL_CEVAL_H */ |
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