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authorPrashanth Pai <ppai@redhat.com>2016-08-10 15:28:48 +0530
committerPrashanth Pai <ppai@redhat.com>2016-08-10 18:20:57 +0530
commit655b0d2793386d2059b9c682e931035a83619917 (patch)
treec1dfcc19202af123b649767c6a0bb5c4b340bd63 /gluster/gfapi/utils.py
parentd4b8804abb876bda9803cee61c6c4298b475e6be (diff)
Move source files into gfapi/ dir
Currently, many source files are directly placed under gluster/ dir: gluster/exceptions.py gluster/gfapi.py gluster/utils.py When multiple packages (RPMs) are sharing the same gluster namespace, these source files will conflict if there are source files with same names provided by other projects. Fix: Move all source files in gluster/* to gluster/gfapi/* Note that this patch does not break how existing users import gfapi. Change-Id: Idf9d07eefafe8333215d6c61201c97c982565ba9 Signed-off-by: Prashanth Pai <ppai@redhat.com>
Diffstat (limited to 'gluster/gfapi/utils.py')
-rw-r--r--gluster/gfapi/utils.py57
1 files changed, 57 insertions, 0 deletions
diff --git a/gluster/gfapi/utils.py b/gluster/gfapi/utils.py
new file mode 100644
index 0000000..a556a41
--- /dev/null
+++ b/gluster/gfapi/utils.py
@@ -0,0 +1,57 @@
+# Copyright (c) 2016 Red Hat, Inc.
+#
+# This file is part of libgfapi-python project which is a
+# subproject of GlusterFS ( www.gluster.org)
+#
+# This file is licensed to you under your choice of the GNU Lesser
+# General Public License, version 3 or any later version (LGPLv3 or
+# later), or the GNU General Public License, version 2 (GPLv2), in all
+# cases as published by the Free Software Foundation.
+
+import os
+import errno
+from functools import wraps
+from gluster.gfapi.exceptions import VolumeNotMounted
+
+
+def validate_mount(func):
+ """
+ Decorator to assert that volume is initialized and mounted before any
+ further I/O calls are invoked by methods.
+
+ :param func: method to be decorated and checked.
+ """
+ def _exception(volname):
+ raise VolumeNotMounted('Volume "%s" not mounted.' % (volname))
+
+ @wraps(func)
+ def wrapper(*args, **kwargs):
+ self = args[0]
+ if self.fs and self._mounted:
+ return func(*args, **kwargs)
+ else:
+ return _exception(self.volname)
+ wrapper.__wrapped__ = func
+
+ return wrapper
+
+
+def validate_glfd(func):
+ """
+ Decorator to assert that glfd is valid.
+
+ :param func: method to be decorated and checked.
+ """
+ def _exception():
+ raise OSError(errno.EBADF, os.strerror(errno.EBADF))
+
+ @wraps(func)
+ def wrapper(*args, **kwargs):
+ self = args[0]
+ if self.fd:
+ return func(*args, **kwargs)
+ else:
+ return _exception()
+ wrapper.__wrapped__ = func
+
+ return wrapper