listlist.c
3.3 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001, 2004, 2005, 2007, 2008, 2010, 2011
Free Software Foundation, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General
Public License along with this library. If not, see
<http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <mailutils/sys/list.h>
#include <mailutils/sys/iterator.h>
#include <mailutils/errno.h>
void
_mu_list_insert_sublist (mu_list_t list,
struct list_data *current,
struct list_data *head,
struct list_data *tail,
size_t count,
int insert_before)
{
if (insert_before)
{
head->prev = current->prev;
tail->next = current;
if (current->prev != &list->head)
current->prev->next = head;
else
list->head.next = head;
current->prev = tail;
}
else
{
tail->next = current->next;
head->prev = current;
if (current->next != &list->head)
current->next->prev = tail;
else
list->head.prev = tail;
current->next = head;
}
list->count += count;
}
void
_mu_list_clear (mu_list_t list)
{
list->head.next = list->head.prev = &list->head;
list->count = 0;
}
int
mu_list_insert_list (mu_list_t list, void *item, mu_list_t new_list,
int insert_before)
{
struct list_data *current;
mu_list_comparator_t comp;
int status = MU_ERR_NOENT;
if (list == NULL)
return EINVAL;
comp = list->comp ? list->comp : _mu_list_ptr_comparator;
mu_monitor_wrlock (list->monitor);
for (current = list->head.next;
current != &list->head;
current = current->next)
{
if (comp (current->item, item) == 0)
{
_mu_list_insert_sublist (list, current,
new_list->head.next, new_list->head.prev,
new_list->count,
insert_before);
_mu_list_clear (new_list);
status = 0;
break;
}
}
mu_monitor_unlock (list->monitor);
return status;
}
void
mu_list_append_list (mu_list_t list, mu_list_t new_list)
{
if (list->count == 0)
{
list->head = new_list->head;
list->head.next->prev = list->head.prev->next = &list->head;
list->count = new_list->count;
}
else
_mu_list_insert_sublist (list, list->head.prev,
new_list->head.next, new_list->head.prev,
new_list->count,
0);
_mu_list_clear (new_list);
}
void
mu_list_prepend_list (mu_list_t list, mu_list_t new_list)
{
if (list->count == 0)
{
list->head = new_list->head;
list->head.next->prev = list->head.prev->next = &list->head;
list->count = new_list->count;
}
else
_mu_list_insert_sublist (list, list->head.next,
new_list->head.next, new_list->head.prev,
new_list->count,
1);
_mu_list_clear (new_list);
}