* io.c (rb_io_syswrite): While local FS writes are usually

buffered, the buffers can be full or the file opened with
  O_SYNC. IO#syswrite can also be used on blocking IOs
  (pipe/socket) just like IO#write.
  The patch is written by Eric Wong. [ruby-core:35554]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31237 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,11 @@
+Mon Apr  4 21:41:26 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* io.c (rb_io_syswrite): While local FS writes are usually
+	  buffered, the buffers can be full or the file opened with
+	  O_SYNC. IO#syswrite can also be used on blocking IOs
+	  (pipe/socket) just like IO#write.
+	  The patch is written by Eric Wong. [ruby-core:35554]
+
 Mon Apr  4 11:50:40 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* test/test_tempfile.rb: simply ignore platform depedent testcases

io.c

@@ -3958,7 +3958,7 @@ rb_io_syswrite(VALUE io, VALUE str)
         rb_io_check_closed(fptr);
     }
 
-    n = write(fptr->fd, RSTRING_PTR(str), RSTRING_LEN(str));
+    n = rb_write_internal(fptr->fd, RSTRING_PTR(str), RSTRING_LEN(str));
 
     if (n == -1) rb_sys_fail_path(fptr->pathv);