Files
openflow/include/queue.h
T
Ben Pfaff bce273b4c0 Add abstraction of packet queue, and use it in the controller.
The packet queue abstraction will also be used in the userspace
switch.
2008-03-27 17:50:33 -07:00

39 lines
1.5 KiB
C

/* Copyright (C) 2008 Board of Trustees, Leland Stanford Jr. University.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef QUEUE_H
#define QUEUE_H 1
/* Packet queue. */
struct queue {
int n;
struct buffer *head;
struct buffer *tail;
};
void queue_init(struct queue *);
void queue_destroy(struct queue *);
void queue_clear(struct queue *);
void queue_advance_head(struct queue *, struct buffer *next);
void queue_push_tail(struct queue *, struct buffer *);
#endif /* queue.h */