61 lines
1.1 KiB
Ruby
61 lines
1.1 KiB
Ruby
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=begin
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This script shows how to deal with C++ classes using Ruby/DL.
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You must build a dynamic loadable library using "c++sample.C"
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to run this script as follows:
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$ g++ -o libsample.so -shared c++sample.C
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=end
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require 'dl'
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require 'dl/import'
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require 'dl/struct'
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# Give a name of dynamic loadable library
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LIBNAME = ARGV[0] || "libsample.so"
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class Person
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module Core
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extend DL::Importable
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dlload LIBNAME
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# mangled symbol names
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extern "void __6PersonPCci(void *, const char *, int)"
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extern "const char *get_name__6Person(void *)"
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extern "int get_age__6Person(void *)"
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extern "void set_age__6Personi(void *, int)"
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Data = struct [
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"char *name",
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"int age",
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]
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end
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def initialize(name, age)
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@ptr = Core::Data.alloc
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Core::__6PersonPCci(@ptr, name, age)
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end
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def get_name()
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str = Core::get_name__6Person(@ptr)
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if( str )
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str.to_s
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else
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nil
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end
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end
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def get_age()
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Core::get_age__6Person(@ptr)
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end
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def set_age(age)
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Core::set_age__6Personi(@ptr, age)
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end
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end
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obj = Person.new("ttate", 1)
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p obj.get_name()
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p obj.get_age()
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obj.set_age(10)
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p obj.get_age()
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