diff options
Diffstat (limited to 'Include/internal/pycore_tuple.h')
| -rw-r--r-- | Include/internal/pycore_tuple.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/Include/internal/pycore_tuple.h b/Include/internal/pycore_tuple.h index 79c827fe88..624c21caec 100644 --- a/Include/internal/pycore_tuple.h +++ b/Include/internal/pycore_tuple.h @@ -10,6 +10,43 @@ extern "C" { #include "tupleobject.h" /* _PyTuple_CAST() */ + +/* runtime lifecycle */ + +extern PyStatus _PyTuple_InitGlobalObjects(PyInterpreterState *); +extern PyStatus _PyTuple_InitTypes(PyInterpreterState *); +extern void _PyTuple_Fini(PyInterpreterState *); + + +/* other API */ + +#ifndef WITH_FREELISTS +// without freelists +// for tuples only store empty tuple singleton +# define PyTuple_MAXSAVESIZE 1 +# define PyTuple_MAXFREELIST 1 +#endif + +/* Speed optimization to avoid frequent malloc/free of small tuples */ +#ifndef PyTuple_MAXSAVESIZE + // Largest tuple to save on free list +# define PyTuple_MAXSAVESIZE 20 +#endif +#ifndef PyTuple_MAXFREELIST + // Maximum number of tuples of each size to save +# define PyTuple_MAXFREELIST 2000 +#endif + +struct _Py_tuple_state { +#if PyTuple_MAXSAVESIZE > 0 + /* Entries 1 up to PyTuple_MAXSAVESIZE are free lists, + entry 0 is the empty tuple () of which at most one instance + will be allocated. */ + PyTupleObject *free_list[PyTuple_MAXSAVESIZE]; + int numfree[PyTuple_MAXSAVESIZE]; +#endif +}; + #define _PyTuple_ITEMS(op) (_PyTuple_CAST(op)->ob_item) extern PyObject *_PyTuple_FromArray(PyObject *const *, Py_ssize_t); |