mirror of https://github.com/python/cpython
67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
#ifndef Py_INTERNAL_LIST_H
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#define Py_INTERNAL_LIST_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 "pycore_freelist.h" // _PyFreeListState
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PyAPI_FUNC(PyObject*) _PyList_Extend(PyListObject *, PyObject *);
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extern void _PyList_DebugMallocStats(FILE *out);
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#define _PyList_ITEMS(op) _Py_RVALUE(_PyList_CAST(op)->ob_item)
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PyAPI_FUNC(int)
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_PyList_AppendTakeRefListResize(PyListObject *self, PyObject *newitem);
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// In free-threaded build: self should be locked by the caller, if it should be thread-safe.
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static inline int
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_PyList_AppendTakeRef(PyListObject *self, PyObject *newitem)
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{
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assert(self != NULL && newitem != NULL);
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assert(PyList_Check(self));
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Py_ssize_t len = Py_SIZE(self);
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Py_ssize_t allocated = self->allocated;
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assert((size_t)len + 1 < PY_SSIZE_T_MAX);
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if (allocated > len) {
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#ifdef Py_GIL_DISABLED
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_Py_atomic_store_ptr_release(&self->ob_item[len], newitem);
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#else
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PyList_SET_ITEM(self, len, newitem);
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#endif
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Py_SET_SIZE(self, len + 1);
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return 0;
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}
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return _PyList_AppendTakeRefListResize(self, newitem);
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}
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// Repeat the bytes of a buffer in place
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static inline void
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_Py_memory_repeat(char* dest, Py_ssize_t len_dest, Py_ssize_t len_src)
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{
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assert(len_src > 0);
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Py_ssize_t copied = len_src;
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while (copied < len_dest) {
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Py_ssize_t bytes_to_copy = Py_MIN(copied, len_dest - copied);
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memcpy(dest + copied, dest, bytes_to_copy);
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copied += bytes_to_copy;
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}
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}
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typedef struct {
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PyObject_HEAD
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Py_ssize_t it_index;
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PyListObject *it_seq; /* Set to NULL when iterator is exhausted */
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} _PyListIterObject;
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PyAPI_FUNC(PyObject *)_PyList_FromArraySteal(PyObject *const *src, Py_ssize_t n);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_INTERNAL_LIST_H */
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