python/sanlockmod.c python/sanlock.py

[David Teigland]

 python/sanlock.py   |    3 ++-
 python/sanlockmod.c |   30 ++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 1 deletion(-)

New commits:
commit 2d7486c2f669543f10f53f09d315e43b81ba68fc
Author: Federico Simoncelli <fsimonce(a)redhat.com&gt;
Date:   Tue Jun 7 09:55:20 2011 -0400

    python: add get_alignment function

diff --git a/python/sanlock.py b/python/sanlock.py
index 87e33b3..0909cc8 100644
--- a/python/sanlock.py
+++ b/python/sanlock.py
@@ -8,7 +8,8 @@ import sys
 import sanlockmod
 
 SANLOCK_FUNCTIONS = (
-    'register', 'add_lockspace', 'rem_lockspace',
'acquire', 'release'
+    'register', 'add_lockspace', 'rem_lockspace',
'acquire', 'release',
+    'get_alignment'
 )
 
 SanlockException = sanlockmod.exception
diff --git a/python/sanlockmod.c b/python/sanlockmod.c
index a042030..7e5f2af 100644
--- a/python/sanlockmod.c
+++ b/python/sanlockmod.c
@@ -287,6 +287,34 @@ exit_fail:
     return NULL;
 }
 
+static PyObject *
+py_get_alignment(PyObject *self, PyObject *args)
+{
+    int rv;
+    char *path;
+    struct sanlk_disk disk;
+
+    /* parse python tuple */
+    if (!PyArg_ParseTuple(args, "s", &path)) {
+        return NULL;
+    }
+
+    memset(&disk, 0, sizeof(struct sanlk_disk));
+    strncpy(disk.path, path, SANLK_PATH_LEN - 1);
+
+    /* get device alignment (gil disabled) */
+    Py_BEGIN_ALLOW_THREADS
+    rv = sanlock_direct_align(&disk);
+    Py_END_ALLOW_THREADS
+
+    if (rv < 0) {
+        __set_exception(SKERRNO(rv), "Unable to get device alignment");
+        return NULL;
+    }
+
+    return PyInt_FromLong(rv);
+}
+
 static PyMethodDef
 sanlockmod_methods[] = {
     {"register", py_register, METH_NOARGS, "Register to SANLock
daemon."},
@@ -302,6 +330,8 @@ sanlockmod_methods[] = {
                 "Acquire a resource lease for the current process."},
     {"release", py_release, METH_VARARGS,
                 "Release a resource lease for the current process."},
+    {"get_alignment", py_get_alignment, METH_VARARGS,
+                "Get device alignment."},
     {NULL, NULL, 0, NULL}
 };