/usr/include/quagga/pqueue.h is in quagga 0.99.24.1-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | /* Priority queue functions.
Copyright (C) 2003 Yasuhiro Ohara
This file is part of GNU Zebra.
GNU Zebra is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2, or (at your
option) any later version.
GNU Zebra is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Zebra; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _ZEBRA_PQUEUE_H
#define _ZEBRA_PQUEUE_H
struct pqueue
{
void **array;
int array_size;
int size;
int (*cmp) (void *, void *);
void (*update) (void * node, int actual_position);
};
#define PQUEUE_INIT_ARRAYSIZE 32
extern struct pqueue *pqueue_create (void);
extern void pqueue_delete (struct pqueue *queue);
extern void pqueue_enqueue (void *data, struct pqueue *queue);
extern void *pqueue_dequeue (struct pqueue *queue);
extern void pqueue_remove_at (int index, struct pqueue *queue);
extern void trickle_down (int index, struct pqueue *queue);
extern void trickle_up (int index, struct pqueue *queue);
#endif /* _ZEBRA_PQUEUE_H */
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