/* * alpm_list.h * * Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org> * * This program 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 of the License, or * (at your option) any later version. * * This program 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 this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, * USA. */ #ifndef _ALPM_LIST_H #define _ALPM_LIST_H #ifdef __cplusplus extern "C" { #endif /** * @brief Linked list type used by libalpm. * * It is exposed so front ends can use it to prevent the need to reimplement * lists of their own; however, it is not required that the front end uses * it. */ typedef struct __alpm_list_t { /** data held by the list node */ void *data; /** pointer to the previous node */ struct __alpm_list_t *prev; /** pointer to the next node */ struct __alpm_list_t *next; } alpm_list_t; #define FREELIST(p) do { alpm_list_free_inner(p, free); alpm_list_free(p); p = NULL; } while(0) typedef void (*alpm_list_fn_free)(void *); /* item deallocation callback */ typedef int (*alpm_list_fn_cmp)(const void *, const void *); /* item comparison callback */ /* allocation */ alpm_list_t *alpm_list_new(void); void alpm_list_free(alpm_list_t *list); void alpm_list_free_inner(alpm_list_t *list, alpm_list_fn_free fn); /* item mutators */ alpm_list_t *alpm_list_add(alpm_list_t *list, void *data); alpm_list_t *alpm_list_add_sorted(alpm_list_t *list, void *data, alpm_list_fn_cmp fn); alpm_list_t *alpm_list_mmerge(alpm_list_t *left, alpm_list_t *right, alpm_list_fn_cmp fn); alpm_list_t *alpm_list_msort(alpm_list_t *list, int n, alpm_list_fn_cmp fn); alpm_list_t *alpm_list_remove(alpm_list_t *haystack, const void *needle, alpm_list_fn_cmp fn, void **data); alpm_list_t *alpm_list_remove_node(alpm_list_t *node); alpm_list_t *alpm_list_remove_dupes(const alpm_list_t *list); alpm_list_t *alpm_list_strdup(const alpm_list_t *list); alpm_list_t *alpm_list_copy(const alpm_list_t *list); alpm_list_t *alpm_list_copy_data(const alpm_list_t *list); alpm_list_t *alpm_list_reverse(alpm_list_t *list); /* item accessors */ alpm_list_t *alpm_list_first(const alpm_list_t *list); alpm_list_t *alpm_list_nth(const alpm_list_t *list, int n); alpm_list_t *alpm_list_next(const alpm_list_t *list); alpm_list_t *alpm_list_last(const alpm_list_t *list); void *alpm_list_getdata(const alpm_list_t *entry); /* misc */ int alpm_list_count(const alpm_list_t *list); int alpm_list_find(const alpm_list_t *haystack, const void *needle); int alpm_list_find_str(const alpm_list_t *haystack,const char *needle); alpm_list_t *alpm_list_diff(const alpm_list_t *lhs, const alpm_list_t *rhs, alpm_list_fn_cmp fn); #ifdef __cplusplus } #endif #endif /* _ALPM_LIST_H */ /* vim: set ts=2 sw=2 noet: */