* 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.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32394 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 12 insertions, 0 deletions

diff --git a/thread_pthread.c b/thread_pthread.c
index 79b98a98c5..bde5d1cc77 100644
--- a/thread_pthread.c
+++ b/thread_pthread.c
@@ -1268,4 +1268,16 @@ ruby_stack_overflowed_p(const rb_thread_t *th, const void *addr)
 }
 #endif
 
+int
+rb_reserved_fd_p(int fd)
+{
+    if (fd == timer_thread_pipe[0] ||
+	fd == timer_thread_pipe[1]) {
+	return 1;
+    }
+    else {
+	return 0;
+    }
+}
+
 #endif /* THREAD_SYSTEM_DEPENDENT_IMPLEMENTATION */