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Diffstat (limited to 'contrib/libvhost-user/libvhost-user.h')
-rw-r--r--contrib/libvhost-user/libvhost-user.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/contrib/libvhost-user/libvhost-user.h b/contrib/libvhost-user/libvhost-user.h
index 53ef222..4021f11 100644
--- a/contrib/libvhost-user/libvhost-user.h
+++ b/contrib/libvhost-user/libvhost-user.h
@@ -132,6 +132,7 @@ typedef void (*vu_set_features_cb) (VuDev *dev, uint64_t features);
typedef int (*vu_process_msg_cb) (VuDev *dev, VhostUserMsg *vmsg,
int *do_reply);
typedef void (*vu_queue_set_started_cb) (VuDev *dev, int qidx, bool started);
+typedef bool (*vu_queue_is_processed_in_order_cb) (VuDev *dev, int qidx);
typedef struct VuDevIface {
/* called by VHOST_USER_GET_FEATURES to get the features bitmask */
@@ -148,6 +149,12 @@ typedef struct VuDevIface {
vu_process_msg_cb process_msg;
/* tells when queues can be processed */
vu_queue_set_started_cb queue_set_started;
+ /*
+ * If the queue is processed in order, in which case it will be
+ * resumed to vring.used->idx. This can help to support resuming
+ * on unmanaged exit/crash.
+ */
+ vu_queue_is_processed_in_order_cb queue_is_processed_in_order;
} VuDevIface;
typedef void (*vu_queue_handler_cb) (VuDev *dev, int qidx);