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73 lines
2 KiB
C
73 lines
2 KiB
C
#ifndef Py_INTERNAL_TUPLE_H
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#define Py_INTERNAL_TUPLE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef Py_BUILD_CORE
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# error "this header requires Py_BUILD_CORE define"
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#endif
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#include "tupleobject.h" /* _PyTuple_CAST() */
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/* runtime lifecycle */
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extern PyStatus _PyTuple_InitGlobalObjects(PyInterpreterState *);
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extern PyStatus _PyTuple_InitTypes(PyInterpreterState *);
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extern void _PyTuple_Fini(PyInterpreterState *);
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/* other API */
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// PyTuple_MAXSAVESIZE - largest tuple to save on free list
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// PyTuple_MAXFREELIST - maximum number of tuples of each size to save
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#if defined(PyTuple_MAXSAVESIZE) && PyTuple_MAXSAVESIZE <= 0
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// A build indicated that tuple freelists should not be used.
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# define PyTuple_NFREELISTS 0
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# undef PyTuple_MAXSAVESIZE
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# undef PyTuple_MAXFREELIST
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#elif !defined(WITH_FREELISTS)
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# define PyTuple_NFREELISTS 0
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# undef PyTuple_MAXSAVESIZE
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# undef PyTuple_MAXFREELIST
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#else
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// We are using a freelist for tuples.
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# ifndef PyTuple_MAXSAVESIZE
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# define PyTuple_MAXSAVESIZE 20
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# endif
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# define PyTuple_NFREELISTS PyTuple_MAXSAVESIZE
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# ifndef PyTuple_MAXFREELIST
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# define PyTuple_MAXFREELIST 2000
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# endif
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#endif
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struct _Py_tuple_state {
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#if PyTuple_NFREELISTS > 0
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/* There is one freelist for each size from 1 to PyTuple_MAXSAVESIZE.
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The empty tuple is handled separately.
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Each tuple stored in the array is the head of the linked list
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(and the next available tuple) for that size. The actual tuple
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object is used as the linked list node, with its first item
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(ob_item[0]) pointing to the next node (i.e. the previous head).
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Each linked list is initially NULL. */
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PyTupleObject *free_list[PyTuple_NFREELISTS];
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int numfree[PyTuple_NFREELISTS];
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#else
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char _unused; // Empty structs are not allowed.
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#endif
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};
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#define _PyTuple_ITEMS(op) (_PyTuple_CAST(op)->ob_item)
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extern PyObject *_PyTuple_FromArray(PyObject *const *, Py_ssize_t);
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extern PyObject *_PyTuple_FromArraySteal(PyObject *const *, Py_ssize_t);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_INTERNAL_TUPLE_H */
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