* ext/io/nonblock: moved from ext/io/wait/lib.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24106 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

3 files changed, 116 insertions, 23 deletions

diff --git a/ext/io/nonblock/extconf.rb b/ext/io/nonblock/extconf.rb
new file mode 100644
index 0000000000..aecdc16cea
--- /dev/null
+++ b/ext/io/nonblock/extconf.rb
@@ -0,0 +1,8 @@
+require 'mkmf'
+target = "io/nonblock"
+
+hdr = %w"fcntl.h"
+if have_macro("O_NONBLOCK", hdr) and
+    (have_macro("F_GETFL", hdr) or have_macro("F_SETFL", hdr))
+  create_makefile(target)
+end
diff --git a/ext/io/nonblock/nonblock.c b/ext/io/nonblock/nonblock.c
new file mode 100644
index 0000000000..d7e1ac8e01
--- /dev/null
+++ b/ext/io/nonblock/nonblock.c
@@ -0,0 +1,108 @@
+/**********************************************************************
+
+  io/wait.c -
+
+  $Author$
+  created at: Tue Jul 14 21:53:18 2009
+
+  All the files in this distribution are covered under the Ruby's
+  license (see the file COPYING).
+
+**********************************************************************/
+
+#include "ruby.h"
+#include "ruby/io.h"
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <fcntl.h>
+
+#ifdef F_GETFL
+static int
+io_nonblock_mode(int fd)
+{
+    int f = fcntl(fd, F_GETFL);
+    if (f == -1) rb_sys_fail(0);
+    return f;
+}
+#else
+#define io_nonblock_mode(fd) ((void)(fd), 0)
+#endif
+
+#ifdef F_GETFL
+static VALUE
+rb_io_nonblock_p(VALUE io)
+{
+    rb_io_t *fptr;
+    GetOpenFile(io, fptr);
+    if (io_nonblock_mode(fptr->fd) & O_NONBLOCK)
+	return Qtrue;
+    return Qfalse;
+}
+#else
+#define rb_io_nonblock_p rb_f_notimplement
+#endif
+
+#ifdef F_SETFL
+static void
+io_nonblock_set(int fd, int f, int nb)
+{
+    if (nb)
+	f |= O_NONBLOCK;
+    else
+	f &= ~O_NONBLOCK;
+    if (fcntl(fd, F_SETFL, f) == -1)
+	rb_sys_fail(0);
+}
+
+static VALUE
+rb_io_nonblock_set(VALUE io, VALUE nb)
+{
+    rb_io_t *fptr;
+    GetOpenFile(io, fptr);
+    io_nonblock_set(fptr->fd, io_nonblock_mode(fptr->fd), RTEST(nb));
+    return io;
+}
+
+static VALUE
+io_nonblock_restore(VALUE arg)
+{
+    int *restore = (int *)arg;
+    if (fcntl(restore[0], F_SETFL, restore[1]) == -1)
+	rb_sys_fail(0);
+    return Qnil;
+}
+
+static VALUE
+rb_io_nonblock_block(int argc, VALUE *argv, VALUE io)
+{
+    int nb = 1;
+    rb_io_t *fptr;
+    int f, restore[2];
+
+    GetOpenFile(io, fptr);
+    if (argc > 0) {
+	VALUE v;
+	rb_scan_args(argc, argv, "01", &v);
+	nb = RTEST(v);
+    }
+    f = io_nonblock_mode(fptr->fd);
+    restore[0] = fptr->fd;
+    restore[1] = f;
+    io_nonblock_set(fptr->fd, f, nb);
+    return rb_ensure(rb_yield, io, io_nonblock_restore, (VALUE)restore);
+}
+#else
+#define rb_io_nonblock_set rb_f_notimplement
+#define rb_io_nonblock_block rb_f_notimplement
+#endif
+
+void
+Init_nonblock(void)
+{
+    VALUE io = rb_cIO;
+
+    rb_define_method(io, "nonblock?", rb_io_nonblock_p, 0);
+    rb_define_method(io, "nonblock=", rb_io_nonblock_set, 1);
+    rb_define_method(io, "nonblock", rb_io_nonblock_block, -1);
+}
diff --git a/ext/io/wait/lib/nonblock.rb b/ext/io/wait/lib/nonblock.rb
deleted file mode 100644
index 2103fdf25b..0000000000
--- a/ext/io/wait/lib/nonblock.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-require "fcntl"
-class IO
-  def nonblock?
-    (fcntl(Fcntl::F_GETFL) & File::NONBLOCK) != 0
-  end
-
-  def nonblock=(nb)
-    f = fcntl(Fcntl::F_GETFL)
-    if nb
-      f |= File::NONBLOCK
-    else
-      f &= ~File::NONBLOCK
-    end
-    fcntl(Fcntl::F_SETFL, f)
-  end
-
-  def nonblock(nb = true)
-    nb, self.nonblock = nonblock?, nb
-    yield
-  ensure
-    self.nonblock = nb
-  end
-end if defined?(Fcntl::F_GETFL)