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/* $Cambridge: hermes/src/prayer/lib/list.h,v 1.3 2008/09/16 09:59:57 dpc22 Exp $ */
/************************************************
* Prayer - a Webmail Interface *
************************************************/
/* Copyright (c) University of Cambridge 2000 - 2008 */
/* See the file NOTICE for conditions of use and distribution. */
/* Data structures for list class */
struct list_item {
struct list_item *next; /* Linked list */
char *name; /* Name of list item, if relevant */
/* List classes extend here */
};
struct list {
BOOL use_case; /* Case is significant in list lookups */
struct pool *pool; /* Allocation pool */
struct list_item *head; /* Start of list */
struct list_item *tail; /* End of list */
unsigned long length; /* Length of list */
};
/* Function prototypes for list class */
struct list *list_create(struct pool *pool, BOOL use_case);
void list_free(struct list *list);
void list_unshift(struct list *list, struct list_item *item, char *name);
void list_push(struct list *list, struct list_item *item, char *name);
struct list_item *list_shift(struct list *list);
struct list_item *list_pop(struct list *list);
BOOL
list_insert_sorted(struct list *list, struct list_item *item, char *name);
unsigned long list_length(struct list *list);
struct list_item *list_lookup_byname(struct list *list, char *name);
struct list_item *list_lookup_byoffset(struct list *list,
unsigned long offset);
BOOL list_remove_byname(struct list *list, char *name);
BOOL list_remove_byoffset(struct list *list, unsigned long offset);
BOOL list_rename_item(struct list *list, char *oldname, char *newname);
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