2 * Copyright (c) 2008, 2009, 2010 Nicira Networks.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
25 int n; /* Number of queued packets. */
26 struct ofpbuf *head; /* First queued packet, null if n == 0. */
27 struct ofpbuf *tail; /* Last queued packet, null if n == 0. */
30 #define OVS_QUEUE_INITIALIZER { 0, NULL, NULL }
32 void queue_init(struct ovs_queue *);
33 void queue_destroy(struct ovs_queue *);
34 void queue_clear(struct ovs_queue *);
35 void queue_advance_head(struct ovs_queue *, struct ofpbuf *next);
36 void queue_push_tail(struct ovs_queue *, struct ofpbuf *);
37 struct ofpbuf *queue_pop_head(struct ovs_queue *);
39 static inline bool queue_is_empty(const struct ovs_queue *q)