{"id":3580,"date":"2012-07-15T02:18:46","date_gmt":"2012-07-14T17:18:46","guid":{"rendered":"http:\/\/www.moonmile.net\/blog\/archives\/3580"},"modified":"2012-07-15T02:29:11","modified_gmt":"2012-07-14T17:29:11","slug":"%e9%96%a2%e6%95%b0%e3%83%9d%e3%82%a4%e3%83%b3%e3%82%bf%e3%82%92%e7%84%a1%e7%90%86%e7%9f%a2%e7%90%86%e5%8f%96%e5%be%97%e3%81%97%e3%81%a6%e3%80%81%e5%88%a5%e3%81%ae%e9%96%a2%e6%95%b0%e3%83%9d%e3%82%a4","status":"publish","type":"post","link":"http:\/\/www.moonmile.net\/blog\/archives\/3580","title":{"rendered":"\u95a2\u6570\u30dd\u30a4\u30f3\u30bf\u3092\u7121\u7406\u77e2\u7406\u53d6\u5f97\u3057\u3066\u3001\u5225\u306e\u95a2\u6570\u30dd\u30a4\u30f3\u30bf\u306b\u5165\u308c\u308b\u65b9\u6cd5"},"content":{"rendered":"

__event\/__hook \u95a2\u6570\u3092\u4f7f\u3046\u7406\u7531\u306e\u3072\u3068\u3064\u3068\u3057\u3066\u3001\u30af\u30e9\u30b9\u306e\u95a2\u6570\u30dd\u30a4\u30f3\u30bf\u3092\u5225\u306e\u30af\u30e9\u30b9\u306e\u95a2\u6570\u30dd\u30a4\u30f3\u30bf\u306b\u306f\u5bb9\u6613\u306b\u5165\u308c\u3089\u308c\u306a\u3044\u3001\u3068\u3044\u3046\u306e\u304c\u3042\u3063\u3066\u3002<\/p>\n

\r\nclass Alice {\r\n\tstring _name;\r\npublic:\r\n\tvoid (*Say)(string name);\t\/\/ \u3053\u3053\u3067\u95a2\u6570\u30dd\u30a4\u30f3\u30bf\u3092\u5b9a\u7fa9\r\n};\r\n<\/pre>\n
\u3068\u3044\u3046\u3088\u3046\u306b\u30dd\u30a4\u30f3\u30bf\u3092\u5b9a\u7fa9\u3057\u3066\u304a\u3044\u3066\u3001\u3053\u308c\u3092\u8a2d\u5b9a\u3057\u305f\u3044\u308f\u3051\u3067\u3059\u304c\u3001\u3053\u308c\u306b\u8a2d\u5b9a\u3067\u304d\u308b\u306e\u306f Alice::func(string) \u3068\u3044\u3046\u95a2\u6570\u3060\u3051\u306a\u3093\u3067\u3059\u306d\u3002\u3053\u308c\u304c\u6bd4\u8f03\u95a2\u6570\u3060\u3063\u305f\u308a\u3059\u308b\u3068\u3001\u4ed6\u306e\u30af\u30e9\u30b9\u304b\u3089\u8a2d\u5b9a\u3067\u304d\u306a\u3044\u3057\uff08\u5185\u90e8\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u306a\u3044\u3068\u99c4\u76ee\u3060\u3057\uff09\u3068\u3044\u3046\u5177\u5408\u3067\u56f0\u308b\u308f\u3051\u3067\u3059\u3002
\nSTL\u306e\u6bd4\u8f03\u95a2\u6570(for_each \u3068\u304b remove_if \u306a\u3069\uff09\u306e algorithm \u7cfb\u306f\u30b0\u30ed\u30fc\u30d0\u30eb\u306e\u95a2\u6570\u306a\u306e\u3067\u5927\u4e08\u592b\u306a\u3093\u3067\u3059\u304c…<\/p>\n
\u307e\u3041\u3001\u305d\u3093\u306a\u8a33\u3067 __event \u3068 __hook \u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u3059\u308b\u306e\u304c\u666e\u901a\uff08\uff1f\uff09\u306a\u306e\u3067\u3059\u304c\u3001\u3084\u3063\u3071\u308a\u95a2\u6570\u30dd\u30a4\u30f3\u30bf\u307e\u307e\u4f7f\u3044\u305f\u3044\u3001\u3068\u3044\u3046\u306e\u3092\u5b9f\u88c5\u3057\u305f\u306e\u304c\u4ee5\u4e0b\u3067\u3059\u3002<\/p>\n
\r\n\/\/ \u95a2\u6570\u30dd\u30a4\u30f3\u30bf\u3092\u7121\u7406\u77e2\u7406\u53d6\u5f97\r\n#include <string>\r\n#include <iostream>\r\n#include <stdarg.h>\r\n\r\nusing namespace std;\r\n\r\nclass Alice {\r\n\tstring _name;\r\npublic:\r\n\/\/\t__event void SayEvent(string name);\r\n\tvoid (*Say)(string name);\r\n};\r\n\r\nclass Lewis {\r\npublic:\r\n\tvoid Say( string name )\r\n\t{\r\n\t\tcout << &quot;in Lewis: &quot; << name << endl;\r\n\t}\r\n};\r\n\r\nvoid *funcp( int dummy, ... )\r\n{\r\n\tva_list ap;\r\n    va_start(ap, dummy);\r\n    int ret = va_arg(ap, int);\r\n    va_end(ap);\r\n    return (void*)ret;\r\n}\r\nvoid hook( int dummy, ... )\r\n{\r\n\tint *p = &dummy;\r\n\tint src  = (int)p[1];\r\n\tint *dest = (int*)p[2];\r\n\t*dest = src;\r\n}\r\n\r\nint main( void )\r\n{\r\n\r\n\tAlice alice;\r\n\tLewis lewis;\r\n\r\n\/\/\t__hook( &Alice::SayEvent, &alice, &Lewis::Say, &lewis );\r\n\/\/ \talice.SayEvent( &quot;Alice&quot; );\r\n\r\n\tvoid *p = funcp(0,&Lewis::Say);\r\n\tvoid *p2 = funcp(0,&alice.Say);\r\n\r\n\tprintf(&quot;say:   %08X\\n&quot;, &Lewis::Say );\r\n\tprintf(&quot;funcp: %08X\\n&quot;, p );\r\n\tprintf(&quot;say:   %08X\\n&quot;, &alice.Say);\r\n\tprintf(&quot;funcp: %08X\\n&quot;, p2 );\r\n\r\n\thook(0, &Lewis::Say, &alice.Say );\r\n\talice.Say( &quot;Alice X&quot; );\r\n\r\n\treturn 0;\r\n}\r\n<\/pre>\n
hook \u95a2\u6570\u304c\u305d\u308c\u3067\u3059\u306d\u3002\u8a66\u3057\u306b\u4f7f\u3063\u305f funcp \u95a2\u6570\u3092\u89b3\u3066\u8cb0\u3046\u3068\u5206\u304b\u308a\u307e\u3059\u304c\u3001\u53ef\u5909\u5f15\u6570\u306e\u30b9\u30bf\u30c3\u30af\u3092\u4f7f\u3063\u3066\u53d6\u308a\u51fa\u3059\u3068\u3044\u3046\u65b9\u6cd5\u3067\u3059\u3002
\n\u3053\u308c\u304c\u30c8\u30ea\u30c3\u30ad\u30fc\u306a\u306e\u306f\u3001\u53ef\u5909\u5f15\u6570\u306e\u5834\u5408\u306f\u578b\u306e\u30c1\u30a7\u30c3\u30af\u304c\u3055\u308c\u306a\u3044\u3053\u3068\u3067\u3059\u3002C++ \u306e\u5834\u5408\u3001\u578b\u5909\u63db\u304c\u53b3\u3057\u304f\u3066\u3001\u95a2\u6570\u30dd\u30a4\u30f3\u30bf\u3068 void * \u306e\u76f8\u4e92\u5909\u63db\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u306a\u306e\u3067\u7121\u7406\u77e2\u7406\u30dd\u30a4\u30f3\u30bf\u3067\u89e3\u6c7a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u3067\u3001__event\/__hook \u304c\u6d88\u3048\u3066\u3001gcc \u3067\u3082\u30b3\u30f3\u30d1\u30a4\u30eb\u3067\u304d\u305d\u3046\u3067\u3001\u5148\u306e model \u3068 view \u306e\u95a2\u4fc2\u306b\u3082\u4f7f\u3048\u308b\u306d…\u3068\u601d\u3063\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3001\u3088\u304f\u3088\u304f\u8003\u3048\u76f4\u3057\u3066\u307f\u308b\u3068\u3001model-view \u306e\u95a2\u4fc2\u306b\u306f Observable \u30d1\u30bf\u30fc\u30f3\u3092\u4f7f\u3048\u3070\u5373\u89e3\u6c7a\u3068\u3044\u3046\u306e\u304c\u5206\u304b\u308a\u307e\u3057\u305f orz __hook\/__event \u3092\u4f7f\u3046\u5fc5\u8981\u304c\u306a\u3044\u3063\u3066\u3053\u3068\u3067\u300c\u8eca\u8f2a\u306e\u518d\u767a\u660e\u300d\u3002\u304d\u308c\u3044\u306a Observable \u30d1\u30bf\u30fc\u30f3\u306f\u5f8c\u7a0b\u3002\u305d\u308c\u3060\u3051\u3058\u3083\u3064\u307e\u3089\u306a\u3044\u306e\u3067\u3001C++ \u3067 ObservableCollection \u3092\u5b9f\u88c5\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
__event\/__hook \u95a2\u6570\u3092\u4f7f\u3046\u7406\u7531\u306e\u3072\u3068\u3064\u3068\u3057\u3066\u3001\u30af\u30e9\u30b9\u306e\u95a2\u6570\u30dd\u30a4\u30f3\u30bf\u3092\u5225\u306e\u30af\u30e9\u30b9\u306e\u95a2\u6570\u30dd\u30a4\u30f3\u30bf\u306b\u306f\u5bb9\u6613\u306b\u5165\u308c\u3089\u308c\u306a\u3044\u3001\u3068\u3044\u3046\u306e\u304c\u3042\u3063\u3066\u3002 class Alice { string _name; public: … \u7d9a\u304d\u3092\u8aad\u3080 →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[22],"tags":[],"class_list":["post-3580","post","type-post","status-publish","format-standard","hentry","category-c"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/3580","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/comments?post=3580"}],"version-history":[{"count":2,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/3580\/revisions"}],"predecessor-version":[{"id":3582,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/3580\/revisions\/3582"}],"wp:attachment":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/media?parent=3580"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/categories?post=3580"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/tags?post=3580"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}