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bpo-30860: Consolidate stateful runtime globals. (#2594)

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* group the (stateful) runtime globals into various topical structs
* consolidate the topical structs under a single top-level _PyRuntimeState struct
* add a check-c-globals.py script that helps identify runtime globals

Other globals are excluded (see globals.txt and check-c-globals.py).
This commit is contained in:
Eric Snow 2017-09-05 18:26:16 -07:00 • committed by GitHub
parent 501b324d3a
commit 76d5abc868
40 changed files with 2727 additions and 1327 deletions
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30
Include/pystate.h
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@ -29,9 +29,10 @@ typedef struct {
int use_hash_seed;
unsigned long hash_seed;
int _disable_importlib; /* Needed by freeze_importlib */
char *allocator;
} _PyCoreConfig;
#define _PyCoreConfig_INIT {0, -1, 0, 0}
#define _PyCoreConfig_INIT {0, -1, 0, 0, NULL}
/* Placeholders while working on the new configuration API
*
@ -57,6 +58,19 @@ typedef struct _is {
PyObject *builtins;
PyObject *importlib;
/* Used in Python/sysmodule.c. */
int check_interval;
PyObject *warnoptions;
PyObject *xoptions;
/* Used in Modules/_threadmodule.c. */
long num_threads;
/* Support for runtime thread stack size tuning.
A value of 0 means using the platform's default stack size
or the size specified by the THREAD_STACK_SIZE macro. */
/* Used in Python/thread.c. */
size_t pythread_stacksize;
PyObject *codec_search_path;
PyObject *codec_search_cache;
PyObject *codec_error_registry;
@ -185,9 +199,6 @@ typedef struct _ts {
#endif
#ifndef Py_LIMITED_API
PyAPI_FUNC(void) _PyInterpreterState_Init(void);
#endif /* !Py_LIMITED_API */
PyAPI_FUNC(PyInterpreterState *) PyInterpreterState_New(void);
PyAPI_FUNC(void) PyInterpreterState_Clear(PyInterpreterState *);
PyAPI_FUNC(void) PyInterpreterState_Delete(PyInterpreterState *);
@ -246,7 +257,7 @@ PyAPI_FUNC(int) PyThreadState_SetAsyncExc(unsigned long, PyObject *);
/* Assuming the current thread holds the GIL, this is the
PyThreadState for the current thread. */
#ifdef Py_BUILD_CORE
PyAPI_DATA(_Py_atomic_address) _PyThreadState_Current;
# define _PyThreadState_Current _PyRuntime.gilstate.tstate_current
# define PyThreadState_GET() \
((PyThreadState*)_Py_atomic_load_relaxed(&_PyThreadState_Current))
#else
@ -301,10 +312,6 @@ PyAPI_FUNC(void) PyGILState_Release(PyGILState_STATE);
PyAPI_FUNC(PyThreadState *) PyGILState_GetThisThreadState(void);
#ifndef Py_LIMITED_API
/* Issue #26558: Flag to disable PyGILState_Check().
If set to non-zero, PyGILState_Check() always return 1. */
PyAPI_DATA(int) _PyGILState_check_enabled;
/* Helper/diagnostic function - return 1 if the current thread
currently holds the GIL, 0 otherwise.
@ -340,11 +347,6 @@ PyAPI_FUNC(PyThreadState *) PyThreadState_Next(PyThreadState *);
typedef struct _frame *(*PyThreadFrameGetter)(PyThreadState *self_);
#endif
/* hook for PyEval_GetFrame(), requested for Psyco */
#ifndef Py_LIMITED_API
PyAPI_DATA(PyThreadFrameGetter) _PyThreadState_GetFrame;
#endif
#ifdef __cplusplus
}
#endif