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gh-111968: Introduce _PyFreeListState and _PyFreeListState_GET API (gh-113584)

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Donghee Na 2024-01-10 08:04:41 +09:00 • committed by GitHub
parent cdca0ce0ad
commit 57bdc6c30d
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17 changed files with 171 additions and 50 deletions
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35
Include/internal/pycore_freelist.h Normal file
View file

@ -0,0 +1,35 @@
#ifndef Py_INTERNAL_FREELIST_H
#define Py_INTERNAL_FREELIST_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef Py_BUILD_CORE
# error "this header requires Py_BUILD_CORE define"
#endif
#ifndef WITH_FREELISTS
// without freelists
# define PyList_MAXFREELIST 0
#endif
/* Empty list reuse scheme to save calls to malloc and free */
#ifndef PyList_MAXFREELIST
# define PyList_MAXFREELIST 80
#endif
struct _Py_list_state {
#if PyList_MAXFREELIST > 0
PyListObject *free_list[PyList_MAXFREELIST];
int numfree;
#endif
};
typedef struct _Py_freelist_state {
struct _Py_list_state list;
} _PyFreeListState;
#ifdef __cplusplus
}
#endif
#endif /* !Py_INTERNAL_FREELIST_H */

6
Include/internal/pycore_gc.h
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@ -8,6 +8,8 @@ extern "C" {
# error "this header requires Py_BUILD_CORE define"
#endif
#include "pycore_freelist.h" // _PyFreeListState
/* GC information is stored BEFORE the object structure. */
typedef struct {
// Pointer to next object in the list.
@ -238,9 +240,11 @@ extern PyObject *_PyGC_GetObjects(PyInterpreterState *interp, Py_ssize_t generat
extern PyObject *_PyGC_GetReferrers(PyInterpreterState *interp, PyObject *objs);
// Functions to clear types free lists
extern void _PyGC_ClearAllFreeLists(PyInterpreterState *interp);
extern void _Py_ClearFreeLists(_PyFreeListState *state, int is_finalization);
extern void _PyTuple_ClearFreeList(PyInterpreterState *interp);
extern void _PyFloat_ClearFreeList(PyInterpreterState *interp);
extern void _PyList_ClearFreeList(PyInterpreterState *interp);
extern void _PyList_ClearFreeList(_PyFreeListState *state, int is_finalization);
extern void _PyDict_ClearFreeList(PyInterpreterState *interp);
extern void _PyAsyncGen_ClearFreeLists(PyInterpreterState *interp);
extern void _PyContext_ClearFreeList(PyInterpreterState *interp);

4
Include/internal/pycore_interp.h
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@ -179,6 +179,9 @@ struct _is {
// One bit is set for each non-NULL entry in code_watchers
uint8_t active_code_watchers;
#if !defined(Py_GIL_DISABLED)
struct _Py_freelist_state freelist_state;
#endif
struct _py_object_state object_state;
struct _Py_unicode_state unicode;
struct _Py_float_state float_state;
@ -190,7 +193,6 @@ struct _is {
PySliceObject *slice_cache;
struct _Py_tuple_state tuple;
struct _Py_list_state list;
struct _Py_dict_state dict_state;
struct _Py_async_gen_state async_gen;
struct _Py_context_state context;

22
Include/internal/pycore_list.h
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@ -8,6 +8,7 @@ extern "C" {
# error "this header requires Py_BUILD_CORE define"
#endif
#include "pycore_freelist.h" // _PyFreeListState
extern PyObject* _PyList_Extend(PyListObject *, PyObject *);
extern void _PyList_DebugMallocStats(FILE *out);
@ -15,28 +16,9 @@ extern void _PyList_DebugMallocStats(FILE *out);
/* runtime lifecycle */
extern void _PyList_Fini(PyInterpreterState *);
extern void _PyList_Fini(_PyFreeListState *);
/* other API */
#ifndef WITH_FREELISTS
// without freelists
# define PyList_MAXFREELIST 0
#endif
/* Empty list reuse scheme to save calls to malloc and free */
#ifndef PyList_MAXFREELIST
# define PyList_MAXFREELIST 80
#endif
struct _Py_list_state {
#if PyList_MAXFREELIST > 0
PyListObject *free_list[PyList_MAXFREELIST];
int numfree;
#endif
};
#define _PyList_ITEMS(op) _Py_RVALUE(_PyList_CAST(op)->ob_item)
extern int

16
Include/internal/pycore_pystate.h
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@ -8,7 +8,9 @@ extern "C" {
# error "this header requires Py_BUILD_CORE define"
#endif
#include "pycore_freelist.h" // _PyFreeListState
#include "pycore_runtime.h" // _PyRuntime
#include "pycore_tstate.h" // _PyThreadStateImpl
// Values for PyThreadState.state. A thread must be in the "attached" state
@ -239,6 +241,20 @@ PyAPI_FUNC(const PyConfig*) _Py_GetConfig(void);
// See also PyInterpreterState_Get() and _PyInterpreterState_GET().
extern PyInterpreterState* _PyGILState_GetInterpreterStateUnsafe(void);
static inline _PyFreeListState* _PyFreeListState_GET(void)
{
PyThreadState *tstate = _PyThreadState_GET();
#ifdef Py_DEBUG
_Py_EnsureTstateNotNULL(tstate);
#endif
#ifdef Py_GIL_DISABLED
return &((_PyThreadStateImpl*)tstate)->freelist_state;
#else
return &tstate->interp->freelist_state;
#endif
}
#ifdef __cplusplus
}
#endif

2
Include/internal/pycore_tstate.h
View file

@ -8,6 +8,7 @@ extern "C" {
# error "this header requires Py_BUILD_CORE define"
#endif
#include "pycore_freelist.h" // struct _Py_freelist_state
#include "pycore_mimalloc.h" // struct _mimalloc_thread_state
@ -20,6 +21,7 @@ typedef struct _PyThreadStateImpl {
#ifdef Py_GIL_DISABLED
struct _mimalloc_thread_state mimalloc;
struct _Py_freelist_state freelist_state;
#endif
} _PyThreadStateImpl;