88 lines
2.8 KiB
Python
88 lines
2.8 KiB
Python
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import datetime as dt
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import os
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import random
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nfns = 4 # Functions per class
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nargs = 4 # Arguments per function
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def generate_dummy_code_pybind11(nclasses=10):
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decl = ""
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bindings = ""
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for cl in range(nclasses):
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decl += f"class cl{cl:03};\n"
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decl += "\n"
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for cl in range(nclasses):
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decl += f"class {cl:03} {{\n"
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decl += "public:\n"
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bindings += f' py::class_<cl{cl:03}>(m, "cl{cl:03}")\n'
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for fn in range(nfns):
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ret = random.randint(0, nclasses - 1)
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params = [random.randint(0, nclasses - 1) for i in range(nargs)]
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decl += f" cl{ret:03} *fn_{fn:03}("
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decl += ", ".join(f"cl{p:03} *" for p in params)
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decl += ");\n"
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bindings += f' .def("fn_{fn:03}", &cl{cl:03}::fn_{fn:03})\n'
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decl += "};\n\n"
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bindings += " ;\n"
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result = "#include <pybind11/pybind11.h>\n\n"
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result += "namespace py = pybind11;\n\n"
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result += decl + "\n"
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result += "PYBIND11_MODULE(example, m) {\n"
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result += bindings
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result += "}"
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return result
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def generate_dummy_code_boost(nclasses=10):
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decl = ""
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bindings = ""
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for cl in range(nclasses):
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decl += f"class cl{cl:03};\n"
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decl += "\n"
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for cl in range(nclasses):
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decl += "class cl%03i {\n" % cl
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decl += "public:\n"
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bindings += f' py::class_<cl{cl:03}>("cl{cl:03}")\n'
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for fn in range(nfns):
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ret = random.randint(0, nclasses - 1)
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params = [random.randint(0, nclasses - 1) for i in range(nargs)]
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decl += f" cl{ret:03} *fn_{fn:03}("
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decl += ", ".join(f"cl{p:03} *" for p in params)
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decl += ");\n"
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bindings += f' .def("fn_{fn:03}", &cl{cl:03}::fn_{fn:03}, py::return_value_policy<py::manage_new_object>())\n'
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decl += "};\n\n"
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bindings += " ;\n"
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result = "#include <boost/python.hpp>\n\n"
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result += "namespace py = boost::python;\n\n"
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result += decl + "\n"
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result += "BOOST_PYTHON_MODULE(example) {\n"
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result += bindings
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result += "}"
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return result
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for codegen in [generate_dummy_code_pybind11, generate_dummy_code_boost]:
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print("{")
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for i in range(0, 10):
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nclasses = 2**i
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with open("test.cpp", "w") as f:
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f.write(codegen(nclasses))
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n1 = dt.datetime.now()
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os.system(
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"g++ -Os -shared -rdynamic -undefined dynamic_lookup "
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"-fvisibility=hidden -std=c++14 test.cpp -I include "
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"-I /System/Library/Frameworks/Python.framework/Headers -o test.so"
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)
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n2 = dt.datetime.now()
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elapsed = (n2 - n1).total_seconds()
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size = os.stat("test.so").st_size
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print(" {%i, %f, %i}," % (nclasses * nfns, elapsed, size))
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print("}")
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