diff options
Diffstat (limited to 'ruby_1_8_6/ext/dl/sample/c++sample.rb')
-rw-r--r-- | ruby_1_8_6/ext/dl/sample/c++sample.rb | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/ruby_1_8_6/ext/dl/sample/c++sample.rb b/ruby_1_8_6/ext/dl/sample/c++sample.rb new file mode 100644 index 0000000000..29887df845 --- /dev/null +++ b/ruby_1_8_6/ext/dl/sample/c++sample.rb @@ -0,0 +1,60 @@ +=begin + This script shows how to deal with C++ classes using Ruby/DL. + You must build a dynamic loadable library using "c++sample.C" + to run this script as follows: + $ g++ -o libsample.so -shared c++sample.C +=end + +require 'dl' +require 'dl/import' +require 'dl/struct' + +# Give a name of dynamic loadable library +LIBNAME = ARGV[0] || "libsample.so" + +class Person + module Core + extend DL::Importable + + dlload LIBNAME + + # mangled symbol names + extern "void __6PersonPCci(void *, const char *, int)" + extern "const char *get_name__6Person(void *)" + extern "int get_age__6Person(void *)" + extern "void set_age__6Personi(void *, int)" + + Data = struct [ + "char *name", + "int age", + ] + end + + def initialize(name, age) + @ptr = Core::Data.alloc + Core::__6PersonPCci(@ptr, name, age) + end + + def get_name() + str = Core::get_name__6Person(@ptr) + if( str ) + str.to_s + else + nil + end + end + + def get_age() + Core::get_age__6Person(@ptr) + end + + def set_age(age) + Core::set_age__6Personi(@ptr, age) + end +end + +obj = Person.new("ttate", 1) +p obj.get_name() +p obj.get_age() +obj.set_age(10) +p obj.get_age() |