Updates for latest libavirt, adds avirt cleanup

Cleanup for avirt is introduced. There are still some issues with this when invoked whilst a PCM is active,
This now allows 4A to be restarted without a reboot.

Loops must be deleted last to avoid any cleanup issues, so to enforce this a new transaction API is added: AlsaMixerTransactionObjectAddTail.

Change-Id: Ieac6a2f163f40af55ee3c33ab63cc534df88769a
Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>

1 files changed, 21 insertions, 0 deletions

diff --git a/plugins/alsa/alsa-transaction.c b/plugins/alsa/alsa-transaction.c
index c35ea81..f8affa6 100644
--- a/plugins/alsa/alsa-transaction.c
+++ b/plugins/alsa/alsa-transaction.c
@@ -71,6 +71,27 @@ fail:
 
 }
 
+bool AlsaMixerTransactionObjectAddTail(AlsaMixerTransaction* list, void* object, AlsaTransactionDestructor destructor) {
+	bool ret = false;
+	AlsaMixerTransactionDataItem * newItem = NULL;
+	if (!list)
+		goto fail;
+
+	newItem = (AlsaMixerTransactionDataItem *) malloc(sizeof(AlsaMixerTransactionDataItem));
+	if (newItem == NULL)
+		goto fail;
+
+	CDS_INIT_LIST_HEAD(&newItem->list_entry);
+	newItem->object = object;
+	newItem->destructor = destructor;
+	cds_list_add_tail(&newItem->list_entry, &list->item_list);
+
+	ret = true;
+fail:
+	return ret;
+
+}
+
 static void AlsaMixerTransactionDoCleanup(AlsaMixerTransaction* transaction) {
 	AlsaMixerTransactionDataItem * item, *sav;