release/src/router/openssl/crypto/pqueue/pqueue.h

   1 /* crypto/pqueue/pqueue.h */
   2 /*
   3  * DTLS implementation written by Nagendra Modadugu
   4  * (nagendra@cs.stanford.edu) for the OpenSSL project 2005.
   5  */
   6 /* ====================================================================
   7  * Copyright (c) 1999-2005 The OpenSSL Project.  All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  *
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  *
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in
  18  *    the documentation and/or other materials provided with the
  19  *    distribution.
  20  *
  21  * 3. All advertising materials mentioning features or use of this
  22  *    software must display the following acknowledgment:
  23  *    "This product includes software developed by the OpenSSL Project
  24  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  25  *
  26  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  27  *    endorse or promote products derived from this software without
  28  *    prior written permission. For written permission, please contact
  29  *    openssl-core@OpenSSL.org.
  30  *
  31  * 5. Products derived from this software may not be called "OpenSSL"
  32  *    nor may "OpenSSL" appear in their names without prior written
  33  *    permission of the OpenSSL Project.
  34  *
  35  * 6. Redistributions of any form whatsoever must retain the following
  36  *    acknowledgment:
  37  *    "This product includes software developed by the OpenSSL Project
  38  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  41  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  43  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  44  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  45  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  47  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  49  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  50  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  51  * OF THE POSSIBILITY OF SUCH DAMAGE.
  52  * ====================================================================
  53  *
  54  * This product includes cryptographic software written by Eric Young
  55  * (eay@cryptsoft.com).  This product includes software written by Tim
  56  * Hudson (tjh@cryptsoft.com).
  57  *
  58  */
  59
  60 #ifndef HEADER_PQUEUE_H
  61 # define HEADER_PQUEUE_H
  62
  63 # include <stdio.h>
  64 # include <stdlib.h>
  65 # include <string.h>
  66
  67 #ifdef  __cplusplus
  68 extern "C" {
  69 #endif
  70 typedef struct _pqueue *pqueue;
  71
  72 typedef struct _pitem {
  73     unsigned char priority[8];  /* 64-bit value in big-endian encoding */
  74     void *data;
  75     struct _pitem *next;
  76 } pitem;
  77
  78 typedef struct _pitem *piterator;
  79
  80 pitem *pitem_new(unsigned char *prio64be, void *data);
  81 void pitem_free(pitem *item);
  82
  83 pqueue pqueue_new(void);
  84 void pqueue_free(pqueue pq);
  85
  86 pitem *pqueue_insert(pqueue pq, pitem *item);
  87 pitem *pqueue_peek(pqueue pq);
  88 pitem *pqueue_pop(pqueue pq);
  89 pitem *pqueue_find(pqueue pq, unsigned char *prio64be);
  90 pitem *pqueue_iterator(pqueue pq);
  91 pitem *pqueue_next(piterator *iter);
  92
  93 void pqueue_print(pqueue pq);
  94 int pqueue_size(pqueue pq);
  95
  96 #ifdef  __cplusplus
  97 }
  98 #endif
  99 #endif                          /* ! HEADER_PQUEUE_H */