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