4 files changed, 56 insertions, 28 deletions
diff --git a/ext/io/nonblock/depend b/ext/io/nonblock/depend
index 7f2db65732..20a96f1252 100644
--- a/ext/io/nonblock/depend
+++ b/ext/io/nonblock/depend
@@ -53,6 +53,7 @@ nonblock.o: $(hdrdir)/ruby/internal/attr/noexcept.h
 nonblock.o: $(hdrdir)/ruby/internal/attr/noinline.h
 nonblock.o: $(hdrdir)/ruby/internal/attr/nonnull.h
 nonblock.o: $(hdrdir)/ruby/internal/attr/noreturn.h
+nonblock.o: $(hdrdir)/ruby/internal/attr/packed_struct.h
 nonblock.o: $(hdrdir)/ruby/internal/attr/pure.h
 nonblock.o: $(hdrdir)/ruby/internal/attr/restrict.h
 nonblock.o: $(hdrdir)/ruby/internal/attr/returns_nonnull.h
@@ -121,7 +122,6 @@ nonblock.o: $(hdrdir)/ruby/internal/intern/enumerator.h
 nonblock.o: $(hdrdir)/ruby/internal/intern/error.h
 nonblock.o: $(hdrdir)/ruby/internal/intern/eval.h
 nonblock.o: $(hdrdir)/ruby/internal/intern/file.h
-nonblock.o: $(hdrdir)/ruby/internal/intern/gc.h
 nonblock.o: $(hdrdir)/ruby/internal/intern/hash.h
 nonblock.o: $(hdrdir)/ruby/internal/intern/io.h
 nonblock.o: $(hdrdir)/ruby/internal/intern/load.h
@@ -152,12 +152,12 @@ nonblock.o: $(hdrdir)/ruby/internal/memory.h
 nonblock.o: $(hdrdir)/ruby/internal/method.h
 nonblock.o: $(hdrdir)/ruby/internal/module.h
 nonblock.o: $(hdrdir)/ruby/internal/newobj.h
-nonblock.o: $(hdrdir)/ruby/internal/rgengc.h
 nonblock.o: $(hdrdir)/ruby/internal/scan_args.h
 nonblock.o: $(hdrdir)/ruby/internal/special_consts.h
 nonblock.o: $(hdrdir)/ruby/internal/static_assert.h
 nonblock.o: $(hdrdir)/ruby/internal/stdalign.h
 nonblock.o: $(hdrdir)/ruby/internal/stdbool.h
+nonblock.o: $(hdrdir)/ruby/internal/stdckdint.h
 nonblock.o: $(hdrdir)/ruby/internal/symbol.h
 nonblock.o: $(hdrdir)/ruby/internal/value.h
 nonblock.o: $(hdrdir)/ruby/internal/value_type.h
diff --git a/ext/io/nonblock/extconf.rb b/ext/io/nonblock/extconf.rb
index d813a01e7c..a1e6075c9b 100644
--- a/ext/io/nonblock/extconf.rb
+++ b/ext/io/nonblock/extconf.rb
@@ -2,6 +2,13 @@
 require 'mkmf'
 target = "io/nonblock"
 
+unless RUBY_ENGINE == 'ruby'
+  File.write("Makefile", dummy_makefile($srcdir).join(""))
+  return
+end
+
+have_func("rb_io_descriptor")
+
 hdr = %w"fcntl.h"
 if have_macro("O_NONBLOCK", hdr) and
     (have_macro("F_GETFL", hdr) or have_macro("F_SETFL", hdr))
diff --git a/ext/io/nonblock/io-nonblock.gemspec b/ext/io/nonblock/io-nonblock.gemspec
index f81d4fda0a..6a16c8b03b 100644
--- a/ext/io/nonblock/io-nonblock.gemspec
+++ b/ext/io/nonblock/io-nonblock.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |spec|
   spec.name          = "io-nonblock"
-  spec.version       = "0.1.1"
+  spec.version       = "0.3.0"
   spec.authors       = ["Nobu Nakada"]
   spec.email         = ["nobu@ruby-lang.org"]
 
diff --git a/ext/io/nonblock/nonblock.c b/ext/io/nonblock/nonblock.c
index b8a40ff38e..d90538f735 100644
--- a/ext/io/nonblock/nonblock.c
+++ b/ext/io/nonblock/nonblock.c
@@ -17,6 +17,17 @@
 #endif
 #include <fcntl.h>
 
+#ifndef HAVE_RB_IO_DESCRIPTOR
+static int
+io_descriptor_fallback(VALUE io)
+{
+    rb_io_t *fptr;
+    GetOpenFile(io, fptr);
+    return fptr->fd;
+}
+#define rb_io_descriptor io_descriptor_fallback
+#endif
+
 #ifdef F_GETFL
 static int
 get_fcntl_flags(int fd)
@@ -39,10 +50,8 @@ get_fcntl_flags(int fd)
 static VALUE
 rb_io_nonblock_p(VALUE io)
 {
-    rb_io_t *fptr;
-    GetOpenFile(io, fptr);
-    if (get_fcntl_flags(fptr->fd) & O_NONBLOCK)
-	return Qtrue;
+    if (get_fcntl_flags(rb_io_descriptor(io)) & O_NONBLOCK)
+        return Qtrue;
     return Qfalse;
 }
 #else
@@ -57,6 +66,8 @@ set_fcntl_flags(int fd, int f)
 	rb_sys_fail(0);
 }
 
+#ifndef RUBY_IO_NONBLOCK_METHODS
+
 static int
 io_nonblock_set(int fd, int f, int nb)
 {
@@ -122,17 +133,23 @@ io_nonblock_set(int fd, int f, int nb)
  *
  */
 static VALUE
-rb_io_nonblock_set(VALUE io, VALUE nb)
+rb_io_nonblock_set(VALUE self, VALUE value)
 {
-    rb_io_t *fptr;
-    GetOpenFile(io, fptr);
-    if (RTEST(nb))
-	rb_io_set_nonblock(fptr);
-    else
-	io_nonblock_set(fptr->fd, get_fcntl_flags(fptr->fd), RTEST(nb));
-    return io;
+    if (RTEST(value)) {
+        rb_io_t *fptr;
+        GetOpenFile(self, fptr);
+        rb_io_set_nonblock(fptr);
+    }
+    else {
+        int descriptor = rb_io_descriptor(self);
+        io_nonblock_set(descriptor, get_fcntl_flags(descriptor), RTEST(value));
+    }
+
+    return self;
 }
 
+#endif /* RUBY_IO_NONBLOCK_METHODS */
+
 static VALUE
 io_nonblock_restore(VALUE arg)
 {
@@ -152,24 +169,25 @@ io_nonblock_restore(VALUE arg)
  * The original mode is restored after the block is executed.
  */
 static VALUE
-rb_io_nonblock_block(int argc, VALUE *argv, VALUE io)
+rb_io_nonblock_block(int argc, VALUE *argv, VALUE self)
 {
     int nb = 1;
-    rb_io_t *fptr;
-    int f, restore[2];
 
-    GetOpenFile(io, fptr);
+    int descriptor = rb_io_descriptor(self);
+
     if (argc > 0) {
-	VALUE v;
-	rb_scan_args(argc, argv, "01", &v);
-	nb = RTEST(v);
+        VALUE v;
+        rb_scan_args(argc, argv, "01", &v);
+        nb = RTEST(v);
     }
-    f = get_fcntl_flags(fptr->fd);
-    restore[0] = fptr->fd;
-    restore[1] = f;
-    if (!io_nonblock_set(fptr->fd, f, nb))
-	return rb_yield(io);
-    return rb_ensure(rb_yield, io, io_nonblock_restore, (VALUE)restore);
+
+    int current_flags = get_fcntl_flags(descriptor);
+    int restore[2] = {descriptor, current_flags};
+
+    if (!io_nonblock_set(descriptor, current_flags, nb))
+        return rb_yield(self);
+
+    return rb_ensure(rb_yield, self, io_nonblock_restore, (VALUE)restore);
 }
 #else
 #define rb_io_nonblock_set rb_f_notimplement
@@ -179,7 +197,10 @@ rb_io_nonblock_block(int argc, VALUE *argv, VALUE io)
 void
 Init_nonblock(void)
 {
+#ifndef RUBY_IO_NONBLOCK_METHODS
     rb_define_method(rb_cIO, "nonblock?", rb_io_nonblock_p, 0);
     rb_define_method(rb_cIO, "nonblock=", rb_io_nonblock_set, 1);
+#endif
+
     rb_define_method(rb_cIO, "nonblock", rb_io_nonblock_block, -1);
 }