Changeset 626 for trunk/kernel/syscalls/sys_fsync.c

Timestamp:

Apr 29, 2019, 7:25:09 PM (5 years ago)

Author:

alain

Message:

This version has been tested on the sort multithreaded application
for TSAR_IOB architectures ranging from 1 to 8 clusters.
It fixes three bigs bugs:
1) the dev_ioc device API has been modified: the dev_ioc_sync_read()
and dev_ioc_sync_write() function use now extended pointers on the
kernel buffer to access a mapper stored in any cluster.
2) the hal_uspace API has been modified: the hal_copy_to_uspace()
and hal_copy_from_uspace() functions use now a (cxy,ptr) couple
to identify the target buffer (equivalent to an extended pointer.
3) an implementation bug has been fixed in the assembly code contained
in the hal_copy_to_uspace() and hal_copy_from_uspace() functions.

File:

• trunk/kernel/syscalls/sys_fsync.c (modified) (2 diffs)

trunk/kernel/syscalls/sys_fsync.c

@@ -1 +1 @@
 /*
- * sys_fsync: sync file
+ * sys_fsync.c - copy all modified pages of a given file mapper to IOC device.
  * 
- * Copyright (c) 2015 UPMC Sorbonne Universites
+ * Author    Alain Greiner  (2016,1017)
  *
- * This file is part of ALMOS-kernel.
+ * Copyright (c)  UPMC Sorbonne Universites
  *
- * ALMOS-kernel is free software; you can redistribute it and/or modify it
+ * This file is part of ALMOS-MKH.
+ *
+ * ALMOS-MKH is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by
  * the Free Software Foundation; version 2.0 of the License.
  *
- * ALMOS-kernel is distributed in the hope that it will be useful, but
+ * ALMOS-MKH is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
@@ -16 +18 @@
  *
  * You should have received a copy of the GNU General Public License
- * along with ALMOS-kernel; if not, write to the Free Software Foundation,
+ * along with ALMOS-MKH; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include <hal_kernel_types.h>
+#include <vfs.h>
+#include <process.h>
+#include <thread.h>
+#include <printk.h>
 
-#include <types.h>
+#include <syscalls.h>
 
-int sys_fsync (uint_t fd)
+/////////////////////////////////
+int sys_fsync( uint32_t file_id )
 {
-        //TODO
-        return 0;
+    printk("\n[ERROR] in %d : not implemented yet\n", __FUNCTION__, file_id );
+    return ENOSYS;
 }