cpython/Include/internal/pycore_freelist.h

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#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 */