freebsd-dev/gnu/usr.bin/cvs/lib/hash.h

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1993-06-18 05:46:17 +00:00
/* @(#)hash.h 1.18 92/03/31 */
/*
* Copyright (c) 1992, Brian Berliner and Jeff Polk
*
* You may distribute under the terms of the GNU General Public License as
* specified in the README file that comes with the CVS 1.3 kit.
*/
/*
* The number of buckets for the hash table contained in each list. This
* should probably be prime.
*/
#define HASHSIZE 151
/*
* Types of nodes
*/
enum ntype
{
UNKNOWN, HEADER, ENTRIES, FILES, LIST, RCSNODE,
RCSVERS, DIRS, UPDATE, LOCK, NDBMNODE
};
typedef enum ntype Ntype;
struct node
{
Ntype type;
struct node *next;
struct node *prev;
struct node *hashnext;
struct node *hashprev;
char *key;
char *data;
void (*delproc) ();
};
typedef struct node Node;
struct list
{
Node *list;
Node *hasharray[HASHSIZE];
struct list *next;
};
typedef struct list List;
struct entnode
{
char *version;
char *timestamp;
char *options;
char *tag;
char *date;
};
typedef struct entnode Entnode;
#if __STDC__
List *getlist (void);
Node *findnode (List * list, char *key);
Node *getnode (void);
int addnode (List * list, Node * p);
int walklist (List * list, int (*proc) ());
void dellist (List ** listp);
void delnode (Node * p);
void freenode (Node * p);
void sortlist (List * list, int (*comp) ());
#else
List *getlist ();
Node *findnode ();
Node *getnode ();
int addnode ();
int walklist ();
void dellist ();
void delnode ();
void freenode ();
void sortlist ();
#endif /* __STDC__ */