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pqueue.h
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1 /* crypto/pqueue/pqueue.h */
2 /*
3  * DTLS implementation written by Nagendra Modadugu
4  * ([email protected]) for the OpenSSL project 2005.
5  */
6 /* ====================================================================
7  * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved.
8  *
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10  * modification, are permitted provided that the following conditions
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23  * "This product includes software developed by the OpenSSL Project
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54  * This product includes cryptographic software written by Eric Young
55  * ([email protected]). This product includes software written by Tim
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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 typedef struct _pqueue *pqueue;
68 
69 typedef struct _pitem
70  {
71  unsigned char priority[8]; /* 64-bit value in big-endian encoding */
72  void *data;
73  struct _pitem *next;
74  } pitem;
75 
76 typedef struct _pitem *piterator;
77 
78 pitem *pitem_new(unsigned char *prio64be, void *data);
79 void pitem_free(pitem *item);
80 
81 pqueue pqueue_new(void);
82 void pqueue_free(pqueue pq);
83 
84 pitem *pqueue_insert(pqueue pq, pitem *item);
85 pitem *pqueue_peek(pqueue pq);
86 pitem *pqueue_pop(pqueue pq);
87 pitem *pqueue_find(pqueue pq, unsigned char *prio64be);
88 pitem *pqueue_iterator(pqueue pq);
89 pitem *pqueue_next(piterator *iter);
90 
91 void pqueue_print(pqueue pq);
92 int pqueue_size(pqueue pq);
93 
94 #endif /* ! HEADER_PQUEUE_H */