tests/opkg_active_list_test.c

   1 /* opkg_active_list.c - the opkg package management system
   2
   3    Tick Chen <tick@openmoko.com>
   4
   5    Copyright (C) 2008 Openmoko
   6
   7    This program is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU General Public License as
   9    published by the Free Software Foundation; either version 2, or (at
  10    your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful, but
  13    WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    General Public License for more details.
  16 */
  17
  18 #include <stdlib.h>
  19 #include <libopkg/active_list.h>
  20 #include <active_list.h>
  21 #include <stdio.h>
  22
  23 struct active_test {
  24         char *str;
  25         struct active_list list;
  26 };
  27
  28 struct active_test *active_test_new(char *str)
  29 {
  30         struct active_test *ans =
  31             (struct active_test *)calloc(1, sizeof(struct active_test));
  32         ans->str = str;
  33         active_list_init(&ans->list);
  34         return ans;
  35 }
  36
  37 void active_test_add(struct active_list *head, struct active_test *node)
  38 {
  39         active_list_add(head, &node->list);
  40 }
  41
  42 void active_test_add_depend(struct active_test *A, struct active_test *B)
  43 {
  44         active_list_add_depend(&A->list, &B->list);
  45 }
  46
  47 /*
  48 ．--A---B----C----D-----E----F
  49     |             |__k---L
  50     |                    |_ N
  51     |__ G ---H ---I---J
  52              |_M      |_O
  53
  54 Then the sequence will be
  55 +: G M H I O J A B K N L C D E F
  56 -: F E D C L N K B A J O I H M G
  57 */
  58 void make_list(struct active_list *head)
  59 {
  60         struct active_test *A = active_test_new("A");
  61         struct active_test *B = active_test_new("B");
  62         struct active_test *C = active_test_new("C");
  63         struct active_test *D = active_test_new("D");
  64         struct active_test *E = active_test_new("E");
  65         struct active_test *F = active_test_new("F");
  66         struct active_test *G = active_test_new("G");
  67         struct active_test *H = active_test_new("H");
  68         struct active_test *I = active_test_new("I");
  69         struct active_test *J = active_test_new("J");
  70         struct active_test *K = active_test_new("K");
  71         struct active_test *L = active_test_new("L");
  72         struct active_test *M = active_test_new("M");
  73         struct active_test *N = active_test_new("N");
  74         struct active_test *O = active_test_new("O");
  75
  76         active_test_add(head, A);
  77         active_test_add(head, B);
  78         active_test_add(head, C);
  79         active_test_add(head, D);
  80         active_test_add(head, E);
  81         active_test_add(head, F);
  82         active_test_add(head, G);
  83         active_test_add(head, H);
  84         active_test_add(head, I);
  85         active_test_add(head, J);
  86         active_test_add(head, K);
  87         active_test_add(head, L);
  88         active_test_add(head, M);
  89         active_test_add(head, N);
  90         active_test_add(head, O);
  91         active_test_add_depend(H, M);
  92         active_test_add_depend(A, G);
  93         active_test_add_depend(A, H);
  94         active_test_add_depend(A, I);
  95         active_test_add_depend(A, J);
  96         active_test_add_depend(J, O);
  97         active_test_add_depend(C, K);
  98         active_test_add_depend(C, L);
  99         active_test_add_depend(L, N);
 100 }
 101
 102 int active_test_compare(const void *a, const void *b)
 103 {
 104         struct active_list *first = (struct active_list *)a;
 105         struct active_list *second = (struct active_list *)b;
 106         return strcmp(list_entry(first, struct active_test, list),
 107                       list_entry(second, struct active_test, list));
 108 }
 109
 110 void show_list(struct active_list *head)
 111 {
 112         struct active_list *ptr;
 113         struct active_test *test;
 114         for (ptr = active_list_next(head, NULL); ptr;
 115              ptr = active_list_next(head, ptr)) {
 116                 test = list_entry(ptr, struct active_test, list);
 117                 printf("%s ", test->str);
 118         }
 119         printf("\n");
 120 }
 121
 122 int main(void)
 123 {
 124         struct active_list head;
 125         struct active_list *ptr;
 126         struct active_test *test;
 127         active_list_init(&head);
 128         make_list(&head);
 129
 130         printf("pos order: ");
 131         show_list(&head);
 132 /*    for(ptr = active_list_next(&head, &head); ptr ;ptr = active_list_next(&head, ptr)) {
 133         test = list_entry(ptr, struct active_test, list);
 134         printf ("%s ",test->str);
 135     }*/
 136         printf("neg order: ");
 137         for (ptr = active_list_prev(&head, &head); ptr;
 138              ptr = active_list_prev(&head, ptr)) {
 139                 test = list_entry(ptr, struct active_test, list);
 140                 printf("%s ", test->str);
 141         }
 142         printf("\npos order after sort: ");
 143         active_list_sort(&head, &active_test_compare);
 144         show_list(&head);
 145
 146         printf("after clear: ");
 147         active_list_clear(&head);
 148         for (ptr = active_list_next(&head, NULL); ptr;
 149              ptr = active_list_next(&head, ptr)) {
 150                 test = list_entry(ptr, struct active_test, list);
 151                 printf("%s ", test->str);
 152         }
 153         printf("\n");
 154
 155 }