Merge branch 'fm/file-operations' into dev

* fm/file-operations:
  Update preloaded modules
  Add file:advise/4 - a wrapper to the POSIX syscall posix_fadvise
  Add file:datasync/1 for syncing file contents only
  sys.h: Correct the get_int64() macro

OTP-8637 fm/file-operations

The functions file:advise/4 and file:datasync/1 have been added. (Thanks to
Filipe David Manana.)

1 files changed, 23 insertions, 5 deletions

diff --git a/erts/emulator/drivers/win32/win_efile.c b/erts/emulator/drivers/win32/win_efile.c
index 89aaad31da..d5f2b79706 100644
--- a/erts/emulator/drivers/win32/win_efile.c
+++ b/erts/emulator/drivers/win32/win_efile.c
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 1997-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 1997-2010. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 /*
@@ -764,6 +764,15 @@ int fd;				/* File descriptor for file to close. */
 }
 
 int
+efile_fdatasync(errInfo, fd)
+Efile_error* errInfo;		/* Where to return error codes. */
+int fd;				/* File descriptor for file to sync. */
+{
+    /* Not available in Windows, just call regular fsync */
+    return efile_fsync(errInfo, fd);
+}
+
+int
 efile_fsync(errInfo, fd)
 Efile_error* errInfo;		/* Where to return error codes. */
 int fd;				/* File descriptor for file to sync. */
@@ -1424,3 +1433,12 @@ efile_symlink(Efile_error* errInfo, char* old, char* new)
     errno = ENOTSUP;
     return check_error(-1, errInfo);
 }
+
+int
+efile_fadvise(Efile_error* errInfo, int fd, Sint64 offset,
+	    Sint64 length, int advise)
+{
+    /* posix_fadvise is not available on Windows, do nothing */
+    errno = ERROR_SUCCESS;
+    return check_error(0, errInfo);
+}