1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
/* Thread and interpreter state structures and their interfaces */
#ifndef Py_PYSTATE_H
#define Py_PYSTATE_H
#ifdef __cplusplus
extern "C" {
#endif
#include "pythread.h"
/* This limitation is for performance and simplicity. If needed it can be
removed (with effort). */
#define MAX_CO_EXTRA_USERS 255
/* Forward declarations for PyFrameObject, PyThreadState
and PyInterpreterState */
struct _frame;
struct _ts;
struct _is;
/* struct _ts is defined in cpython/pystate.h */
typedef struct _ts PyThreadState;
/* struct _is is defined in internal/pycore_pystate.h */
typedef struct _is PyInterpreterState;
PyAPI_FUNC(PyInterpreterState *) PyInterpreterState_New(void);
PyAPI_FUNC(void) PyInterpreterState_Clear(PyInterpreterState *);
PyAPI_FUNC(void) PyInterpreterState_Delete(PyInterpreterState *);
#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03080000
/* New in 3.8 */
PyAPI_FUNC(PyObject *) PyInterpreterState_GetDict(PyInterpreterState *);
#endif
#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03070000
/* New in 3.7 */
PyAPI_FUNC(int64_t) PyInterpreterState_GetID(PyInterpreterState *);
#endif
#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000
/* State unique per thread */
/* New in 3.3 */
PyAPI_FUNC(int) PyState_AddModule(PyObject*, struct PyModuleDef*);
PyAPI_FUNC(int) PyState_RemoveModule(struct PyModuleDef*);
#endif
PyAPI_FUNC(PyObject*) PyState_FindModule(struct PyModuleDef*);
PyAPI_FUNC(PyThreadState *) PyThreadState_New(PyInterpreterState *);
PyAPI_FUNC(void) PyThreadState_Clear(PyThreadState *);
PyAPI_FUNC(void) PyThreadState_Delete(PyThreadState *);
/* Get the current thread state.
When the current thread state is NULL, this issues a fatal error (so that
the caller needn't check for NULL).
The caller must hold the GIL.
See also PyThreadState_GET() and _PyThreadState_GET(). */
PyAPI_FUNC(PyThreadState *) PyThreadState_Get(void);
/* Get the current Python thread state.
Macro using PyThreadState_Get() or _PyThreadState_GET() depending if
pycore_pystate.h is included or not (this header redefines the macro).
If PyThreadState_Get() is used, issue a fatal error if the current thread
state is NULL.
See also PyThreadState_Get() and _PyThreadState_GET(). */
#define PyThreadState_GET() PyThreadState_Get()
PyAPI_FUNC(PyThreadState *) PyThreadState_Swap(PyThreadState *);
PyAPI_FUNC(PyObject *) PyThreadState_GetDict(void);
PyAPI_FUNC(int) PyThreadState_SetAsyncExc(unsigned long, PyObject *);
typedef
enum {PyGILState_LOCKED, PyGILState_UNLOCKED}
PyGILState_STATE;
/* Ensure that the current thread is ready to call the Python
C API, regardless of the current state of Python, or of its
thread lock. This may be called as many times as desired
by a thread so long as each call is matched with a call to
PyGILState_Release(). In general, other thread-state APIs may
be used between _Ensure() and _Release() calls, so long as the
thread-state is restored to its previous state before the Release().
For example, normal use of the Py_BEGIN_ALLOW_THREADS/
Py_END_ALLOW_THREADS macros are acceptable.
The return value is an opaque "handle" to the thread state when
PyGILState_Ensure() was called, and must be passed to
PyGILState_Release() to ensure Python is left in the same state. Even
though recursive calls are allowed, these handles can *not* be shared -
each unique call to PyGILState_Ensure must save the handle for its
call to PyGILState_Release.
When the function returns, the current thread will hold the GIL.
Failure is a fatal error.
*/
PyAPI_FUNC(PyGILState_STATE) PyGILState_Ensure(void);
/* Release any resources previously acquired. After this call, Python's
state will be the same as it was prior to the corresponding
PyGILState_Ensure() call (but generally this state will be unknown to
the caller, hence the use of the GILState API.)
Every call to PyGILState_Ensure must be matched by a call to
PyGILState_Release on the same thread.
*/
PyAPI_FUNC(void) PyGILState_Release(PyGILState_STATE);
/* Helper/diagnostic function - get the current thread state for
this thread. May return NULL if no GILState API has been used
on the current thread. Note that the main thread always has such a
thread-state, even if no auto-thread-state call has been made
on the main thread.
*/
PyAPI_FUNC(PyThreadState *) PyGILState_GetThisThreadState(void);
#ifndef Py_LIMITED_API
# define Py_CPYTHON_PYSTATE_H
# include "cpython/pystate.h"
# undef Py_CPYTHON_PYSTATE_H
#endif
#ifdef __cplusplus
}
#endif
#endif /* !Py_PYSTATE_H */
|
