ad964dcd70246232becc450e758a2818a5147190
1 /* opkg_active_list.c - the opkg package management system
3 Tick Chen <tick@openmoko.com>
5 Copyright (C) 2008 Openmoko
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.
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.
19 #include <libopkg/active_list.h>
20 #include <active_list.h>
25 struct active_list list
;
28 struct active_test
*active_test_new(char *str
)
30 struct active_test
*ans
=
31 (struct active_test
*)calloc(1, sizeof(struct active_test
));
33 active_list_init(&ans
->list
);
37 void active_test_add(struct active_list
*head
, struct active_test
*node
)
39 active_list_add(head
, &node
->list
);
42 void active_test_add_depend(struct active_test
*A
, struct active_test
*B
)
44 active_list_add_depend(&A
->list
, &B
->list
);
48 .--A---B----C----D-----E----F
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
58 void make_list(struct active_list
*head
)
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");
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
);
102 int active_test_compare(const void *a
, const void *b
)
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
));
110 void show_list(struct active_list
*head
)
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
);
124 struct active_list head
;
125 struct active_list
*ptr
;
126 struct active_test
*test
;
127 active_list_init(&head
);
130 printf("pos order: ");
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);
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
);
142 printf("\npos order after sort: ");
143 active_list_sort(&head
, &active_test_compare
);
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
);