Updating code to call fs_utils instead of python's os module

This change is being done to prepare the code to always call
fs_utils for all filesystem calls on the data being stored.
By creating this interface (i.e., fs_utils), we can then
make a seamless change to use the current method of 'os.'
calls over FUSE _or_ libgfapi. This new method will be introduced
in a new separate patch.

Change-Id: Ic768fa7352d7672b1f060230bb4486f0ec228152
Signed-off-by: Thiago da Silva <thiago@redhat.com>
Reviewed-on: http://review.gluster.org/7333
Reviewed-by: Prashanth Pai <ppai@redhat.com>
Reviewed-by: Luis Pabon <lpabon@redhat.com>
Tested-by: Luis Pabon <lpabon@redhat.com>

1 files changed, 40 insertions, 2 deletions

diff --git a/gluster/swift/common/fs_utils.py b/gluster/swift/common/fs_utils.py
index a93fa6b..9f698df 100644
--- a/gluster/swift/common/fs_utils.py
+++ b/gluster/swift/common/fs_utils.py
@@ -19,10 +19,10 @@ import errno
 import stat
 import random
 import time
+import xattr
 from collections import defaultdict
 from itertools import repeat
 import ctypes
-import os.path as _os_path
 from eventlet import sleep
 from swift.common.utils import load_libc_function
 from gluster.swift.common.exceptions import FileOrDirNotFoundError, \
@@ -30,7 +30,41 @@ from gluster.swift.common.exceptions import FileOrDirNotFoundError, \
 from swift.common.exceptions import DiskFileNoSpace
 
 
-os_path = _os_path
+def do_exists(path):
+    return os.path.exists(path)
+
+
+def do_touch(path):
+    with open(path, 'a'):
+        os.utime(path, None)
+
+
+def do_getctime(path):
+    return os.path.getctime(path)
+
+
+def do_getmtime(path):
+    return os.path.getmtime(path)
+
+
+def do_isdir(path):
+    return os.path.isdir(path)
+
+
+def do_getsize(path):
+    return os.path.getsize(path)
+
+
+def do_getxattr(path, key):
+    return xattr.getxattr(path, key)
+
+
+def do_setxattr(path, key, value):
+    xattr.setxattr(path, key, value)
+
+
+def do_removexattr(path, key):
+    xattr.removexattr(path, key)
 
 
 def do_walk(*args, **kwargs):
@@ -212,6 +246,10 @@ def do_open(path, flags, **kwargs):
     return fd
 
 
+def do_dup(fd):
+    return os.dup(fd)
+
+
 def do_close(fd):
     try:
         os.close(fd)