37 lines
1.2 KiB
Python
37 lines
1.2 KiB
Python
#! /usr/bin/env python
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import sys
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import pybindgen
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from pybindgen import ReturnValue, Parameter, Module, Function, FileCodeSink
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from pybindgen import CppMethod, CppConstructor, CppClass, Enum
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from pybindgen.typehandlers.base import ForwardWrapperBase
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class BufferReturn(ReturnValue):
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CTYPES = []
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def __init__(self, ctype, length_expression):
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super(BufferReturn, self).__init__(ctype, is_const=False)
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self.length_expression = length_expression
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def convert_c_to_python(self, wrapper):
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pybuf = wrapper.after_call.declare_variable("PyObject*", "pybuf")
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wrapper.after_call.write_code("%s = PyBuffer_FromReadWriteMemory(retval, (%s)*sizeof(short int));" % (pybuf, self.length_expression))
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wrapper.build_params.add_parameter("N", [pybuf], prepend=True)
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def my_module_gen(out_file):
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mod = Module('c')
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mod.add_include('"c.h"')
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mod.add_function("GetBuffer", BufferReturn("unsigned short int*", "GetBufferLen()"), [])
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mod.add_function("GetBufferLen", ReturnValue.new("int"), [])
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mod.add_function("GetBufferChecksum", ReturnValue.new("unsigned short"), [])
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mod.generate(FileCodeSink(out_file))
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if __name__ == '__main__':
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my_module_gen(sys.stdout)
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