[libvirt] [PATCH v3 02/11] util: netlink: define cleanup function using VIR_DEFINE_AUTOPTR_FUNC

[Sukrit Bhatnagar]

Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.

This commit also typedefs virNlMsg to struct nl_msg type for use
with the cleanup macros.

When a variable of type virNlMsg * is declared using VIR_AUTOPTR,
the function nlmsg_free will be run automatically on it when it
goes out of scope.

Signed-off-by: Sukrit Bhatnagar <skrtbhtngr at gmail.com>
---
 src/util/virnetlink.c | 1 -
 src/util/virnetlink.h | 5 +++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/util/virnetlink.c b/src/util/virnetlink.c
index 162efe6..ecf62c9 100644
--- a/src/util/virnetlink.c
+++ b/src/util/virnetlink.c
@@ -38,7 +38,6 @@
 #include "virnetlink.h"
 #include "virnetdev.h"
 #include "virlog.h"
-#include "viralloc.h"
 #include "virthread.h"
 #include "virmacaddr.h"
 #include "virerror.h"
diff --git a/src/util/virnetlink.h b/src/util/virnetlink.h
index 2a9de0a..8ebeab8 100644
--- a/src/util/virnetlink.h
+++ b/src/util/virnetlink.h
@@ -22,6 +22,7 @@
 
 # include "internal.h"
 # include "virmacaddr.h"
+# include "viralloc.h"
 
 # if defined(__linux__) && defined(HAVE_LIBNL)
 
@@ -44,6 +45,8 @@ struct nlmsghdr;
 
 # endif /* __linux__ */
 
+typedef struct nl_msg virNlMsg;
+
 int virNetlinkStartup(void);
 void virNetlinkShutdown(void);
 
@@ -123,4 +126,6 @@ int virNetlinkEventAddClient(virNetlinkEventHandleCallback handleCB,
 int virNetlinkEventRemoveClient(int watch, const virMacAddr *macaddr,
                                 unsigned int protocol);
 
+VIR_DEFINE_AUTOPTR_FUNC(virNlMsg, nlmsg_free)
+
 #endif /* __VIR_NETLINK_H__ */
-- 
1.8.3.1