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8614f86b71
* gh-131525: Cache the result of tuple_hash * Fix debug builds * Add blurb * Fix formatting * Pre-compute empty tuple singleton * Mostly set the cache within tuple_alloc * Fixes for TSAN * Pre-compute empty tuple singleton * Fix for 32-bit platforms * Assert that op != NULL in _PyTuple_RESET_HASH_CACHE * Use FT_ATOMIC_STORE_SSIZE_RELAXED macro * Update Include/internal/pycore_tuple.h Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com> * Fix alignment * atomic load * Update Objects/tupleobject.c Co-authored-by: Chris Eibl <138194463+chris-eibl@users.noreply.github.com> --------- Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com> Co-authored-by: Chris Eibl <138194463+chris-eibl@users.noreply.github.com>
40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
#ifndef Py_CPYTHON_TUPLEOBJECT_H
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# error "this header file must not be included directly"
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#endif
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typedef struct {
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PyObject_VAR_HEAD
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/* Cached hash. Initially set to -1. */
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Py_hash_t ob_hash;
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/* ob_item contains space for 'ob_size' elements.
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Items must normally not be NULL, except during construction when
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the tuple is not yet visible outside the function that builds it. */
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PyObject *ob_item[1];
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} PyTupleObject;
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PyAPI_FUNC(int) _PyTuple_Resize(PyObject **, Py_ssize_t);
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/* Cast argument to PyTupleObject* type. */
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#define _PyTuple_CAST(op) \
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(assert(PyTuple_Check(op)), _Py_CAST(PyTupleObject*, (op)))
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// Macros and static inline functions, trading safety for speed
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static inline Py_ssize_t PyTuple_GET_SIZE(PyObject *op) {
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PyTupleObject *tuple = _PyTuple_CAST(op);
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return Py_SIZE(tuple);
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}
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#define PyTuple_GET_SIZE(op) PyTuple_GET_SIZE(_PyObject_CAST(op))
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#define PyTuple_GET_ITEM(op, index) (_PyTuple_CAST(op)->ob_item[(index)])
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/* Function *only* to be used to fill in brand new tuples */
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static inline void
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PyTuple_SET_ITEM(PyObject *op, Py_ssize_t index, PyObject *value) {
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PyTupleObject *tuple = _PyTuple_CAST(op);
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assert(0 <= index);
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assert(index < Py_SIZE(tuple));
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tuple->ob_item[index] = value;
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}
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#define PyTuple_SET_ITEM(op, index, value) \
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PyTuple_SET_ITEM(_PyObject_CAST(op), (index), _PyObject_CAST(value))
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