diff options
author | ttate <ttate@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2002-04-20 16:09:44 +0000 |
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committer | ttate <ttate@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2002-04-20 16:09:44 +0000 |
commit | 73331b45e0f81df08f9af6bf229d8a09aec1ff5f (patch) | |
tree | c25c28f4ceddb3a9639407546ae6faa9d77b80ca /ext/dl | |
parent | 9a8bcafe554449f9de5f7b0690434a81721f3ec8 (diff) | |
download | ruby-73331b45e0f81df08f9af6bf229d8a09aec1ff5f.tar.gz |
Add a sample which shows how to deal with C++ libraries.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2394 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/dl')
-rw-r--r-- | ext/dl/MANIFEST | 2 | ||||
-rw-r--r-- | ext/dl/sample/c++sample.C | 35 | ||||
-rw-r--r-- | ext/dl/sample/c++sample.rb | 60 |
3 files changed, 97 insertions, 0 deletions
diff --git a/ext/dl/MANIFEST b/ext/dl/MANIFEST index c5cd5839a8..261b4ad914 100644 --- a/ext/dl/MANIFEST +++ b/ext/dl/MANIFEST @@ -17,6 +17,8 @@ mkcall.rb mkcallback.rb mkcbtable.rb ptr.c +sample/c++sample.C +sample/c++sample.rb sample/drives.rb sample/getch.rb sample/libc.rb diff --git a/ext/dl/sample/c++sample.C b/ext/dl/sample/c++sample.C new file mode 100644 index 0000000000..d083d337a7 --- /dev/null +++ b/ext/dl/sample/c++sample.C @@ -0,0 +1,35 @@ +#include <stdio.h> + +class Person { +private: + const char *name; + int age; + +public: + Person(const char *name, int age); + const char * get_name(); + int get_age(); + void set_age(int i); +}; + +Person::Person(const char *name, int age) + : name(name), age(age) +{ + /* empty */ +} + +const char * +Person::get_name() +{ + return name; +} + +int +Person::get_age(){ + return age; +} + +void +Person::set_age(int i){ + age = i; +} diff --git a/ext/dl/sample/c++sample.rb b/ext/dl/sample/c++sample.rb new file mode 100644 index 0000000000..29887df845 --- /dev/null +++ b/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() |