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From 40326b5724b0cd55a21b2d86eeef344e4826f863 Mon Sep 17 00:00:00 2001
From: Florian Festi <ffesti@redhat.com>
Date: Thu, 20 Oct 2016 16:06:06 +0200
Subject: [PATCH] Do not call headerLink() in hdr_Wrap()
as headers often already have an ref count of 1.
Add headerLink() only where it is necessary.
Plugs memory leaks in Python binding
Resolves: rhbz:#1358467
---
python/header-py.c | 4 ++--
python/rpmmi-py.c | 2 ++
python/rpmts-py.c | 1 -
3 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/python/header-py.c b/python/header-py.c
index 63167d9..5d98f89 100644
--- a/python/header-py.c
+++ b/python/header-py.c
@@ -394,6 +394,7 @@ static PyObject *hdr_new(PyTypeObject *subtype, PyObject *args, PyObject *kwds)
h = headerNew();
} else if (CAPSULE_CHECK(obj)) {
h = CAPSULE_EXTRACT(obj, "rpm._C_Header");
+ headerLink(h);
} else if (hdrObject_Check(obj)) {
h = headerCopy(((hdrObject*) obj)->h);
} else if (PyBytes_Check(obj)) {
@@ -778,8 +779,7 @@ PyObject * hdr_Wrap(PyTypeObject *subtype, Header h)
{
hdrObject * hdr = (hdrObject *)subtype->tp_alloc(subtype, 0);
if (hdr == NULL) return NULL;
-
- hdr->h = headerLink(h);
+ hdr->h = h;
return (PyObject *) hdr;
}
diff --git a/python/rpmmi-py.c b/python/rpmmi-py.c
index 0e27575..379cafb 100644
--- a/python/rpmmi-py.c
+++ b/python/rpmmi-py.c
@@ -1,6 +1,7 @@
#include "rpmsystem-py.h"
#include <rpm/rpmdb.h>
+#include <rpm/header.h>
#include "rpmmi-py.h"
#include "header-py.h"
@@ -74,6 +75,7 @@ rpmmi_iternext(rpmmiObject * s)
s->mi = rpmdbFreeIterator(s->mi);
return NULL;
}
+ headerLink(h);
return hdr_Wrap(&hdr_Type, h);
}
diff --git a/python/rpmts-py.c b/python/rpmts-py.c
index 13951df..f05371c 100644
--- a/python/rpmts-py.c
+++ b/python/rpmts-py.c
@@ -384,7 +384,6 @@ rpmts_HdrFromFdno(rpmtsObject * s, PyObject *arg)
if (rpmrc == RPMRC_OK) {
ho = hdr_Wrap(&hdr_Type, h);
- h = headerFree(h); /* ref held by python object */
} else {
Py_INCREF(Py_None);
ho = Py_None;
--
2.9.3