1 | /* |
1 | /* |
2 | list.c - Part of psiconv, a PSION 5 file formats converter |
2 | list.c - Part of psiconv, a PSION 5 file formats converter |
3 | Copyright (c) 1999 Frodo Looijaard <frodol@dds.nl> |
3 | Copyright (c) 1999, 2000 Frodo Looijaard <frodol@dds.nl> |
4 | |
4 | |
5 | This program is free software; you can redistribute it and/or modify |
5 | This program is free software; you can redistribute it and/or modify |
6 | it under the terms of the GNU General Public License as published by |
6 | it under the terms of the GNU General Public License as published by |
7 | the Free Software Foundation; either version 2 of the License, or |
7 | the Free Software Foundation; either version 2 of the License, or |
8 | (at your option) any later version. |
8 | (at your option) any later version. |
… | |
… | |
21 | #include "config.h" |
21 | #include "config.h" |
22 | #include <stddef.h> |
22 | #include <stddef.h> |
23 | #include <stdlib.h> |
23 | #include <stdlib.h> |
24 | #include <stdio.h> |
24 | #include <stdio.h> |
25 | #include "list.h" |
25 | #include "list.h" |
|
|
26 | #include "error.h" |
26 | |
27 | |
27 | static void psiconv_list_resize(psiconv_list l,unsigned int nr); |
28 | static int psiconv_list_resize(psiconv_list l,unsigned int nr); |
28 | |
29 | |
29 | struct psiconv_list { |
30 | struct psiconv_list_s { |
30 | int cur_len; |
31 | int cur_len; |
31 | int max_len; |
32 | int max_len; |
32 | int el_size; |
33 | int el_size; |
33 | void *els; |
34 | void *els; |
34 | }; |
35 | }; |
35 | |
36 | |
36 | psiconv_list psiconv_list_new(int element_size) |
37 | psiconv_list psiconv_list_new(int element_size) |
37 | { |
38 | { |
38 | psiconv_list l; |
39 | psiconv_list l; |
39 | l = malloc(sizeof(*l)); |
40 | l = malloc(sizeof(*l)); |
|
|
41 | if (!l) |
|
|
42 | return NULL; |
40 | l->cur_len = 0; |
43 | l->cur_len = 0; |
41 | l->max_len = 0; |
44 | l->max_len = 0; |
42 | l->el_size=element_size; |
45 | l->el_size=element_size; |
43 | l->els = NULL; |
46 | l->els = NULL; |
44 | return l; |
47 | return l; |
… | |
… | |
75 | return NULL; |
78 | return NULL; |
76 | else |
79 | else |
77 | return ((char *) (l->els)) + indx * l->el_size; |
80 | return ((char *) (l->els)) + indx * l->el_size; |
78 | } |
81 | } |
79 | |
82 | |
80 | void psiconv_list_add(psiconv_list l, void *el) |
83 | int psiconv_list_add(psiconv_list l, void *el) |
81 | { |
84 | { |
82 | psiconv_list_resize(l,l->cur_len + 1); |
85 | if (psiconv_list_resize(l,l->cur_len + 1)) |
|
|
86 | return -PSICONV_E_NOMEM; |
83 | memcpy(((char *) (l->els)) + l->cur_len * l->el_size, el, l->el_size); |
87 | memcpy(((char *) (l->els)) + l->cur_len * l->el_size, el, l->el_size); |
84 | l->cur_len ++; |
88 | l->cur_len ++; |
|
|
89 | return 0; |
85 | } |
90 | } |
86 | |
91 | |
87 | void psiconv_list_foreach_el(psiconv_list l, void action(void *el)) |
92 | void psiconv_list_foreach_el(psiconv_list l, void action(void *el)) |
88 | { |
93 | { |
89 | int i; |
94 | int i; |
… | |
… | |
94 | psiconv_list psiconv_list_clone(const psiconv_list l) |
99 | psiconv_list psiconv_list_clone(const psiconv_list l) |
95 | { |
100 | { |
96 | psiconv_list l2; |
101 | psiconv_list l2; |
97 | int i; |
102 | int i; |
98 | l2 = psiconv_list_new(l->el_size); |
103 | l2 = psiconv_list_new(l->el_size); |
|
|
104 | if (!l2) |
|
|
105 | return NULL; |
99 | for (i = 0; i < l->cur_len; i ++) |
106 | for (i = 0; i < l->cur_len; i ++) |
100 | psiconv_list_add(l2,psiconv_list_get(l,i)); |
107 | if (psiconv_list_add(l2,psiconv_list_get(l,i))) { |
|
|
108 | psiconv_list_free(l2); |
|
|
109 | return NULL; |
|
|
110 | } |
101 | return l2; |
111 | return l2; |
102 | |
112 | |
103 | } |
113 | } |
104 | |
114 | |
105 | psiconv_list psiconv_list_clone_el(const psiconv_list l,void clone_el(void *el)) |
|
|
106 | { |
|
|
107 | psiconv_list l2 = psiconv_list_clone(l); |
|
|
108 | psiconv_list_foreach_el(l2,clone_el); |
|
|
109 | return l2; |
|
|
110 | } |
|
|
111 | |
115 | |
112 | size_t psiconv_list_fread(psiconv_list l,size_t size, FILE *f) |
116 | size_t psiconv_list_fread(psiconv_list l,size_t size, FILE *f) |
113 | { |
117 | { |
114 | size_t res; |
118 | size_t res; |
115 | psiconv_list_resize(l,l->cur_len + size); |
119 | if (psiconv_list_resize(l,l->cur_len + size)) |
|
|
120 | return 0; |
116 | res = fread(((char *) (l->els)) + l->cur_len * l->el_size,l->el_size,size,f); |
121 | res = fread(((char *) (l->els)) + l->cur_len * l->el_size,l->el_size,size,f); |
117 | l->cur_len += res; |
122 | l->cur_len += res; |
118 | return res; |
123 | return res; |
119 | } |
124 | } |
120 | |
125 | |
121 | void psiconv_list_resize(psiconv_list l,unsigned int nr) |
126 | int psiconv_list_resize(psiconv_list l,unsigned int nr) |
122 | { |
127 | { |
|
|
128 | void * temp; |
123 | if (nr > l->max_len) { |
129 | if (nr > l->max_len) { |
124 | l->max_len = 1.1 * nr; |
130 | l->max_len = 1.1 * nr; |
125 | l->max_len += 16 - l->max_len % 16; |
131 | l->max_len += 16 - l->max_len % 16; |
126 | l->els = realloc(l->els,l->max_len * l->el_size); |
132 | temp = realloc(l->els,l->max_len * l->el_size); |
|
|
133 | if (temp) { |
|
|
134 | l->els = temp; |
|
|
135 | return 0; |
|
|
136 | } else |
|
|
137 | return -PSICONV_E_NOMEM; |
127 | } |
138 | } |
|
|
139 | return 0; |
128 | } |
140 | } |
129 | |
141 | |