Implement ctypes.buffer_at()
#112016
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Implement ctypes.buffer_at()
#112016
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ctypes currently has no way to easily create a buffer object from a pointer and a dynamic size. It is possible to create memoryview objects of array objects (e.g. memoryview((c_ubyte * 10)())) but this is excessively slow when implementing a callback function in Python that is passed a dynamic void * and a size_t. `ctypes.buffer_at()` fills that gap in the API. This is similar to `ffi.buffer()` in the cffi module.
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gh-112015:
ctypes currently has no way to easily create a buffer object from a pointer and a dynamic size. It is possible to create memoryview objects of array objects (e.g.
memoryview((c_ubyte * 10)())) but this is excessively slow when implementing a callback function in Python that is passed a dynamic void * and a size_t.
ctypes.buffer_at()fills that gap in the API. This is similar toffi.buffer()in the cffi module.📚 Documentation preview 📚: https://cpython-previews--112016.org.readthedocs.build/