[sanlock] 08/14: python: Apply pypath_converter to read_resource API

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nsoffer pushed a commit to branch master
in repository sanlock.

commit e7d716d17f434175ba734bc3abfc96809d25f15b
Author: Amit Bawer 
AuthorDate: Tue Jun 4 00:46:16 2019 +0300

python: Apply pypath_converter to read_resource API

We should be able to parse resource path as either unicode or bytes.

New stub test for read_resource API is added with path premutations
    with no expected xfails.
---
 python/sanlock.c     | 33 ++++++++++++++++-----------------
 tests/python_test.py |  2 +-
 2 files changed, 17 insertions(+), 18 deletions(-)

diff --git a/python/sanlock.c b/python/sanlock.c
index f5051b3..a846570 100644
--- a/python/sanlock.c
+++ b/python/sanlock.c
@@ -659,9 +659,9 @@ Sector can be one of (512, 4096).");
 static PyObject *
 py_read_resource(PyObject *self __unused, PyObject *args, PyObject *keywds)
 {
-    int rv, rs_len, sector = SECTOR_SIZE_512;
+    int rv = -1, rs_len, sector = SECTOR_SIZE_512;
     long align = ALIGNMENT_1M;
-    const char *path;
+    PyObject *path = NULL;
     struct sanlk_resource *rs;
     PyObject *rs_info = NULL;

@@ -681,20 +681,20 @@ py_read_resource(PyObject *self __unused, PyObject *args, PyObject *keywds)
     rs->num_disks = 1;

/* parse python tuple */
-    if (!PyArg_ParseTupleAndKeywords(args, keywds, "s|kli", kwlist,
-        &path, &(rs->disks[0].offset), &align, &sector)) {
-        goto exit_fail;
+    if (!PyArg_ParseTupleAndKeywords(args, keywds, "O&|kli", kwlist,
+        pypath_converter, &path, &(rs->disks[0].offset), &align, &sector)) {
+        goto finally;
     }

/* prepare the resource disk path */
-    strncpy(rs->disks[0].path, path, SANLK_PATH_LEN - 1);
+    strncpy(rs->disks[0].path, PyBytes_AsString(path), SANLK_PATH_LEN - 1);

/* set alignment/sector flags */
     if (add_align_flag(align, &rs->flags) == -1)
-        goto exit_fail;
+        goto finally;

if (add_sector_flag(sector, &rs->flags) == -1)
-        goto exit_fail;
+        goto finally;

/* read sanlock resource (gil disabled) */
     Py_BEGIN_ALLOW_THREADS
@@ -703,7 +703,7 @@ py_read_resource(PyObject *self __unused, PyObject *args, PyObject *keywds)

if (rv != 0) {
         __set_exception(rv, "Sanlock resource read failure");
-        goto exit_fail;
+        goto finally;
     }

/* prepare the dictionary holding the information */
@@ -717,17 +717,16 @@ py_read_resource(PyObject *self __unused, PyObject *args, PyObject *keywds)
         "resource", rs->name,
         "version", rs->lver);
     if (rs_info  == NULL)
-        goto exit_fail;
+        goto finally;

-    /* success */
+finally:
     free(rs);
+    Py_XDECREF(path);
+    if (rv != 0) {
+        Py_XDECREF(rs_info);
+        return NULL;
+    }
     return rs_info;
-
-    /* failure */
-exit_fail:
-    free(rs);
-    Py_XDECREF(rs_info);
-    return NULL;
 }

/* write_resource */
diff --git a/tests/python_test.py b/tests/python_test.py
index 66e2b94..3ce1301 100644
--- a/tests/python_test.py
+++ b/tests/python_test.py
@@ -648,7 +648,7 @@ def test_read_lockspace_parse_args(no_sanlock_daemon, filename, encoding):
     with raises_sanlock_errno():
         sanlock.read_lockspace(path)

[e-mail]("filename,encoding", FILE_NAMES)
[e-mail]("filename,encoding", FILE_NAMES_NO_XFAILS)
 def test_read_resource_parse_args(no_sanlock_daemon, filename, encoding):
     path = util.generate_path("/tmp/", filename, encoding)
     with raises_sanlock_errno():