- include/ruby/intern.h, thread_pthread.c (rb_reserved_fd_p, RB_RESERVED_FD_P): added. This C API is to limit to access fds which are used by RubyVM internal. In this version of CRuby, return 1 if fd is communication pipe. If your application needs to close all file descriptors to preent resource leak, skip internal fds using this C API. We also define a macro RB_RESERVED_FD_P(fd). So you can write #ifndef RB_RESERVED_FD_P #define RB_RESERVED_FD_P(fd) 0 #endif for Ruby 1.9.2 or previous version to write compatible extensions. See [ruby-core:37727]
- thread_win32.c (rb_reserved_fd_p): added (return 0 for any fds).
- io.c (rb_io_initialize): raise ArgumentError if given fd is reserved by Ruby.