Issue #4920 has been reported by Motohiro KOSAKI. ---------------------------------------- Bug #4920: Process.daemon()??¼ã?³å?ºã????«ã???????¿ã?¤ã????¼ã?¹ã?¬ã????????ï¼???¤å?ºæ?¥ã?¦ã????¾ã?? http://redmine.ruby-lang.org/issues/4920 Author: Motohiro KOSAKI Status: Assigned Priority: High Assignee: Motohiro KOSAKI Category: core Target version: 1.9.3 ruby -v: ruby 1.9.3dev (2011-06-19 trunk 32170) [x86_64-linux] ??????????????????akr???????????ºè???????¦ã?????????£ã????®ã?§ã??????????? trunk??? $ ./ruby -e 'Process.daemon(true,true); p Dir.entries("/proc/self/task")' ??¨å??è¡?????????¨ã????¹ã?¬ã????????ï¼???¹ã????¾ã??(Linux??§å??è¡??????¦ã??????????ï¼????ä½?????????¨ã???????? Process.daemon() ???å¥?æ©???«ã?¿ã?¤ã????¼ã?¹ã?¬ã????????ï¼???¤å?ºæ?¥ã?¦ã????¾ã??????????§ã????? ????????¯ä»¥ä¸???®ã?³ã?¼ã????§ã?? ------------------------------------------------------ static VALUE proc_daemon(int argc, VALUE *argv) { VALUE nochdir, noclose; int n; rb_secure(2); rb_scan_args(argc, argv, "02", &nochdir, &noclose); prefork(); before_fork(); n = daemon(RTEST(nochdir), RTEST(noclose)); after_fork(); if (n < 0) rb_sys_fail("daemon"); return INT2FIX(n); } ------------------------------------------------------ BSD以å????®ç?°å????§ã??daemon()???OS???daemon(3)??§ã?¯ã?ªã????rb_daemon()???使ç?¨ã????? rb_daemon??¯å????¨ç?????rb_fork_err()???使ç?¨ã???????????çµ?????????? before_fork(); before_fork(); fork(); after_fork(); after_fork(); ??¨ã???????¼ã?³å?ºã?????åº??«ã?ªã?????after_fork()??®ã????³ã?«ã?¿ã?¤ã????¼ã?¹ã?¬ã??????????¤ã??????®ã?§å??è¨?ï¼???¹ã?¬ã???????? ?????¡ã????????1.9.2??§ã?¯ã?¡ã???????¨å??????®ã?§ã???????¯ã?ªã?°ã?¬ã????·ã?§ã?³ã?§ã????? ???????????«ã??????????¯ã????¡ã??????????¨æ???????®ã?§æ??????????????????????«æ??縮ã?§ã???????¿ã?¼ã?²ã????????1.9.3??? è¨å??????????¦ã?????????????¾ã????? -- http://redmine.ruby-lang.org