libalpm
Arch Linux Package Manager Library
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00001 /* 00002 * alpm_list.h 00003 * 00004 * Copyright (c) 2006-2011 Pacman Development Team <pacman-dev@archlinux.org> 00005 * Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org> 00006 * 00007 * This program is free software; you can redistribute it and/or modify 00008 * it under the terms of the GNU General Public License as published by 00009 * the Free Software Foundation; either version 2 of the License, or 00010 * (at your option) any later version. 00011 * 00012 * This program is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 * GNU General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU General Public License 00018 * along with this program. If not, see <http://www.gnu.org/licenses/>. 00019 */ 00020 #ifndef _ALPM_LIST_H 00021 #define _ALPM_LIST_H 00022 00023 #include <stdlib.h> /* size_t */ 00024 00025 #ifdef __cplusplus 00026 extern "C" { 00027 #endif 00028 00029 /** 00030 * @brief Linked list type used by libalpm. 00031 * 00032 * It is exposed so front ends can use it to prevent the need to reimplement 00033 * lists of their own; however, it is not required that the front end uses 00034 * it. 00035 */ 00036 typedef struct __alpm_list_t { 00037 /** data held by the list node */ 00038 void *data; 00039 /** pointer to the previous node */ 00040 struct __alpm_list_t *prev; 00041 /** pointer to the next node */ 00042 struct __alpm_list_t *next; 00043 } alpm_list_t; 00044 00045 #define FREELIST(p) do { alpm_list_free_inner(p, free); alpm_list_free(p); p = NULL; } while(0) 00046 00047 typedef void (*alpm_list_fn_free)(void *); /* item deallocation callback */ 00048 typedef int (*alpm_list_fn_cmp)(const void *, const void *); /* item comparison callback */ 00049 00050 /* allocation */ 00051 void alpm_list_free(alpm_list_t *list); 00052 void alpm_list_free_inner(alpm_list_t *list, alpm_list_fn_free fn); 00053 00054 /* item mutators */ 00055 alpm_list_t *alpm_list_add(alpm_list_t *list, void *data); 00056 alpm_list_t *alpm_list_add_sorted(alpm_list_t *list, void *data, alpm_list_fn_cmp fn); 00057 alpm_list_t *alpm_list_join(alpm_list_t *first, alpm_list_t *second); 00058 alpm_list_t *alpm_list_mmerge(alpm_list_t *left, alpm_list_t *right, alpm_list_fn_cmp fn); 00059 alpm_list_t *alpm_list_msort(alpm_list_t *list, size_t n, alpm_list_fn_cmp fn); 00060 alpm_list_t *alpm_list_remove_item(alpm_list_t *haystack, alpm_list_t *item); 00061 alpm_list_t *alpm_list_remove(alpm_list_t *haystack, const void *needle, alpm_list_fn_cmp fn, void **data); 00062 alpm_list_t *alpm_list_remove_str(alpm_list_t *haystack, const char *needle, char **data); 00063 alpm_list_t *alpm_list_remove_dupes(const alpm_list_t *list); 00064 alpm_list_t *alpm_list_strdup(const alpm_list_t *list); 00065 alpm_list_t *alpm_list_copy(const alpm_list_t *list); 00066 alpm_list_t *alpm_list_copy_data(const alpm_list_t *list, size_t size); 00067 alpm_list_t *alpm_list_reverse(alpm_list_t *list); 00068 00069 /* item accessors */ 00070 alpm_list_t *alpm_list_nth(const alpm_list_t *list, size_t n); 00071 alpm_list_t *alpm_list_next(const alpm_list_t *list); 00072 alpm_list_t *alpm_list_previous(const alpm_list_t *list); 00073 alpm_list_t *alpm_list_last(const alpm_list_t *list); 00074 00075 /* misc */ 00076 size_t alpm_list_count(const alpm_list_t *list); 00077 void *alpm_list_find(const alpm_list_t *haystack, const void *needle, alpm_list_fn_cmp fn); 00078 void *alpm_list_find_ptr(const alpm_list_t *haystack, const void *needle); 00079 char *alpm_list_find_str(const alpm_list_t *haystack, const char *needle); 00080 alpm_list_t *alpm_list_diff(const alpm_list_t *lhs, const alpm_list_t *rhs, alpm_list_fn_cmp fn); 00081 void alpm_list_diff_sorted(const alpm_list_t *left, const alpm_list_t *right, 00082 alpm_list_fn_cmp fn, alpm_list_t **onlyleft, alpm_list_t **onlyright); 00083 void *alpm_list_to_array(const alpm_list_t *list, size_t n, size_t size); 00084 00085 #ifdef __cplusplus 00086 } 00087 #endif 00088 #endif /* _ALPM_LIST_H */ 00089 00090 /* vim: set ts=2 sw=2 noet: */