39 lines
1.4 KiB
C
39 lines
1.4 KiB
C
#ifndef Py_CPYTHON_BYTEARRAYOBJECT_H
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# error "this header file must not be included directly"
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#endif
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/* Object layout */
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typedef struct {
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PyObject_VAR_HEAD
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/* How many bytes allocated in ob_bytes
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In the current implementation this is equivalent to Py_SIZE(ob_bytes_object).
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The value is always loaded and stored atomically for thread safety.
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There are API compatibilty concerns with removing so keeping for now. */
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Py_ssize_t ob_alloc;
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char *ob_bytes; /* Physical backing buffer */
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char *ob_start; /* Logical start inside ob_bytes */
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Py_ssize_t ob_exports; /* How many buffer exports */
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PyObject *ob_bytes_object; /* PyBytes for zero-copy bytes conversion */
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} PyByteArrayObject;
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/* Macros and static inline functions, trading safety for speed */
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#define _PyByteArray_CAST(op) \
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(assert(PyByteArray_Check(op)), _Py_CAST(PyByteArrayObject*, op))
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static inline char* PyByteArray_AS_STRING(PyObject *op)
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{
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return _PyByteArray_CAST(op)->ob_start;
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}
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#define PyByteArray_AS_STRING(self) PyByteArray_AS_STRING(_PyObject_CAST(self))
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static inline Py_ssize_t PyByteArray_GET_SIZE(PyObject *op) {
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PyByteArrayObject *self = _PyByteArray_CAST(op);
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#ifdef Py_GIL_DISABLED
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return _Py_atomic_load_ssize_relaxed(&(_PyVarObject_CAST(self)->ob_size));
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#else
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return Py_SIZE(self);
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#endif
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}
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#define PyByteArray_GET_SIZE(self) PyByteArray_GET_SIZE(_PyObject_CAST(self))
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