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Re: [libvirt] [PATCH 2/2] python: fix snapshot listing bugs

On 06/11/12 22:52, Eric Blake wrote:
Python exceptions are different than libvirt errors, and we had
some corner case bugs on OOM situations.

* python/libvirt-override.c (libvirt_virDomainSnapshotListNames)
(libvirt_virDomainSnapshotListChildrenNames): Use correct error
returns, avoid segv on OOM, and avoid memory leaks on error.
  python/libvirt-override.c |   56 +++++++++++++++++++++++++++++++--------------
  1 file changed, 39 insertions(+), 17 deletions(-)

diff --git a/python/libvirt-override.c b/python/libvirt-override.c
index da5cb9a..676002c 100644
--- a/python/libvirt-override.c
+++ b/python/libvirt-override.c

@@ -2045,7 +2048,7 @@ libvirt_virDomainSnapshotListNames(PyObject *self ATTRIBUTE_UNUSED,

      if (c_retval) {
          if (VIR_ALLOC_N(names, c_retval) < 0)
-            return VIR_PY_NONE;
+            return PyErr_NoMemory();

I'll have to tweak my domain list python bindings to use this func too.

          c_retval = virDomainSnapshotListNames(dom, names, c_retval, flags);
+    for (i = 0; i < c_retval; i++)
+        VIR_FREE(names[i]);
+    VIR_FREE(names);

Probably not worth optimizing this not to iterate the array on success.

      return py_retval;



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