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) 1999-2004 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. |
… | |
… | |
17 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
17 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
18 | */ |
18 | */ |
19 | |
19 | |
20 | |
20 | |
21 | #include "config.h" |
21 | #include "config.h" |
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22 | #include "compat.h" |
22 | #include <stddef.h> |
23 | #include <stddef.h> |
23 | #include <stdlib.h> |
24 | #include <stdlib.h> |
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25 | #include <string.h> |
24 | #include <stdio.h> |
26 | #include <stdio.h> |
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27 | #include "general.h" |
25 | #include "list.h" |
28 | #include "list.h" |
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29 | #include "error.h" |
26 | |
30 | |
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31 | #ifdef DMALLOC |
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32 | #include <dmalloc.h> |
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33 | #endif |
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34 | |
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35 | |
27 | static void psiconv_list_resize(psiconv_list l,unsigned int nr); |
36 | static int psiconv_list_resize(psiconv_list l,psiconv_u32 nr); |
28 | |
37 | |
29 | struct psiconv_list_s { |
38 | struct psiconv_list_s { |
30 | int cur_len; |
39 | psiconv_u32 cur_len; |
31 | int max_len; |
40 | psiconv_u32 max_len; |
32 | int el_size; |
41 | size_t el_size; |
33 | void *els; |
42 | void *els; |
34 | }; |
43 | }; |
35 | |
44 | |
36 | psiconv_list psiconv_list_new(int element_size) |
45 | psiconv_list psiconv_list_new(size_t element_size) |
37 | { |
46 | { |
38 | psiconv_list l; |
47 | psiconv_list l; |
39 | l = malloc(sizeof(*l)); |
48 | l = malloc(sizeof(*l)); |
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49 | if (!l) |
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50 | return NULL; |
40 | l->cur_len = 0; |
51 | l->cur_len = 0; |
41 | l->max_len = 0; |
52 | l->max_len = 0; |
42 | l->el_size=element_size; |
53 | l->el_size=element_size; |
43 | l->els = NULL; |
54 | l->els = NULL; |
44 | return l; |
55 | return l; |
… | |
… | |
46 | |
57 | |
47 | void psiconv_list_free(psiconv_list l) |
58 | void psiconv_list_free(psiconv_list l) |
48 | { |
59 | { |
49 | if (l->max_len) |
60 | if (l->max_len) |
50 | free(l->els); |
61 | free(l->els); |
51 | l->max_len = 0; |
62 | free(l); |
52 | l->cur_len = 0; |
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53 | l->els = NULL; |
63 | l = NULL; |
54 | } |
64 | } |
55 | |
65 | |
56 | void psiconv_list_free_el(psiconv_list l, void free_el(void *el)) |
66 | void psiconv_list_free_el(psiconv_list l, void free_el(void *el)) |
57 | { |
67 | { |
58 | psiconv_list_foreach_el(l,free_el); |
68 | psiconv_list_foreach_el(l,free_el); |
59 | psiconv_list_free(l); |
69 | psiconv_list_free(l); |
60 | } |
70 | } |
61 | |
71 | |
62 | int psiconv_list_length(const psiconv_list l) |
72 | psiconv_u32 psiconv_list_length(const psiconv_list l) |
63 | { |
73 | { |
64 | return l->cur_len; |
74 | return l->cur_len; |
65 | } |
75 | } |
66 | |
76 | |
67 | int psiconv_list_is_empty(const psiconv_list l) |
77 | int psiconv_list_is_empty(const psiconv_list l) |
68 | { |
78 | { |
69 | return l->cur_len == 0; |
79 | return l->cur_len == 0; |
70 | } |
80 | } |
71 | |
81 | |
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82 | void psiconv_list_empty(psiconv_list l) |
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83 | { |
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84 | l->cur_len = 0; |
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85 | } |
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86 | |
72 | void *psiconv_list_get(const psiconv_list l, unsigned int indx) |
87 | void *psiconv_list_get(const psiconv_list l, psiconv_u32 indx) |
73 | { |
88 | { |
74 | if (indx >= l->cur_len) |
89 | if (indx >= l->cur_len) |
75 | return NULL; |
90 | return NULL; |
76 | else |
91 | else |
77 | return ((char *) (l->els)) + indx * l->el_size; |
92 | return ((char *) (l->els)) + indx * l->el_size; |
78 | } |
93 | } |
79 | |
94 | |
80 | void psiconv_list_add(psiconv_list l, void *el) |
95 | int psiconv_list_add(psiconv_list l, const void *el) |
81 | { |
96 | { |
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97 | int res; |
82 | psiconv_list_resize(l,l->cur_len + 1); |
98 | if ((res = psiconv_list_resize(l,l->cur_len + 1))) |
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99 | return res; |
83 | memcpy(((char *) (l->els)) + l->cur_len * l->el_size, el, l->el_size); |
100 | memcpy(((char *) (l->els)) + l->cur_len * l->el_size, el, l->el_size); |
84 | l->cur_len ++; |
101 | l->cur_len ++; |
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102 | return 0; |
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103 | } |
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104 | |
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105 | int psiconv_list_pop(psiconv_list l, void *el) |
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106 | { |
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107 | if (! l->cur_len) |
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108 | return -PSICONV_E_OTHER; |
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109 | l->cur_len --; |
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110 | memcpy(el,((char *)(l->els)) + l->cur_len * l->el_size,l->el_size); |
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111 | return -PSICONV_E_OK; |
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112 | } |
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113 | |
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114 | int psiconv_list_replace(psiconv_list l, psiconv_u32 indx, const void *el) |
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115 | { |
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116 | if (indx >= l->cur_len) |
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117 | return -PSICONV_E_OTHER; |
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118 | memcpy(((char *) (l->els)) + indx * l->el_size,el, l->el_size); |
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119 | return -PSICONV_E_OK; |
85 | } |
120 | } |
86 | |
121 | |
87 | void psiconv_list_foreach_el(psiconv_list l, void action(void *el)) |
122 | void psiconv_list_foreach_el(psiconv_list l, void action(void *el)) |
88 | { |
123 | { |
89 | int i; |
124 | psiconv_u32 i; |
90 | for (i = 0; i < l->cur_len; i ++) |
125 | for (i = 0; i < l->cur_len; i ++) |
91 | action(psiconv_list_get(l,i)); |
126 | action(psiconv_list_get(l,i)); |
92 | } |
127 | } |
93 | |
128 | |
94 | psiconv_list psiconv_list_clone(const psiconv_list l) |
129 | psiconv_list psiconv_list_clone(const psiconv_list l) |
95 | { |
130 | { |
96 | psiconv_list l2; |
131 | psiconv_list l2; |
97 | int i; |
132 | psiconv_u32 i; |
98 | l2 = psiconv_list_new(l->el_size); |
133 | l2 = psiconv_list_new(l->el_size); |
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134 | if (!l2) |
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135 | return NULL; |
99 | for (i = 0; i < l->cur_len; i ++) |
136 | for (i = 0; i < l->cur_len; i ++) |
100 | psiconv_list_add(l2,psiconv_list_get(l,i)); |
137 | if (psiconv_list_add(l2,psiconv_list_get(l,i))) { |
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138 | psiconv_list_free(l2); |
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139 | return NULL; |
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140 | } |
101 | return l2; |
141 | return l2; |
102 | |
142 | |
103 | } |
143 | } |
104 | |
144 | |
105 | psiconv_list psiconv_list_clone_el(const psiconv_list l,void clone_el(void *el)) |
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106 | { |
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107 | psiconv_list l2 = psiconv_list_clone(l); |
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108 | psiconv_list_foreach_el(l2,clone_el); |
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109 | return l2; |
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110 | } |
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111 | |
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112 | size_t psiconv_list_fread(psiconv_list l,size_t size, FILE *f) |
145 | size_t psiconv_list_fread(psiconv_list l,size_t size, FILE *f) |
113 | { |
146 | { |
114 | size_t res; |
147 | size_t res; |
115 | psiconv_list_resize(l,l->cur_len + size); |
148 | if (psiconv_list_resize(l,l->cur_len + size)) |
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149 | return 0; |
116 | res = fread(((char *) (l->els)) + l->cur_len * l->el_size,l->el_size,size,f); |
150 | res = fread(((char *) (l->els)) + l->cur_len * l->el_size,l->el_size,size,f); |
117 | l->cur_len += res; |
151 | l->cur_len += res; |
118 | return res; |
152 | return res; |
119 | } |
153 | } |
120 | |
154 | |
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155 | int psiconv_list_fread_all(psiconv_list l, FILE *f) |
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156 | { |
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157 | while (!feof(f)) { |
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158 | if (!psiconv_list_fread(l,1024,f) && !feof(f)) |
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159 | return -PSICONV_E_NOMEM; |
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160 | } |
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161 | return -PSICONV_E_OK; |
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162 | } |
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163 | |
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164 | int psiconv_list_fwrite_all(const psiconv_list l, FILE *f) |
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165 | { |
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166 | psiconv_u32 pos = 0; |
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167 | psiconv_u32 written; |
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168 | psiconv_u32 len = psiconv_list_length(l); |
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169 | while (pos < len) { |
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170 | if (!(written = fwrite(((char *)(l->els)) + pos * l->el_size,l->el_size, |
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171 | len - pos,f))) |
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172 | return -PSICONV_E_OTHER; |
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173 | pos += written; |
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174 | } |
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175 | return -PSICONV_E_OK; |
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176 | } |
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177 | |
121 | void psiconv_list_resize(psiconv_list l,unsigned int nr) |
178 | int psiconv_list_resize(psiconv_list l,psiconv_u32 nr) |
122 | { |
179 | { |
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180 | void * temp; |
123 | if (nr > l->max_len) { |
181 | if (nr > l->max_len) { |
124 | l->max_len = 1.1 * nr; |
182 | l->max_len = 1.1 * nr; |
125 | l->max_len += 16 - l->max_len % 16; |
183 | l->max_len += 16 - l->max_len % 16; |
126 | l->els = realloc(l->els,l->max_len * l->el_size); |
184 | temp = realloc(l->els,l->max_len * l->el_size); |
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185 | if (temp) { |
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186 | l->els = temp; |
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187 | return -PSICONV_E_OK; |
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188 | } else |
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189 | return -PSICONV_E_NOMEM; |
127 | } |
190 | } |
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191 | return -PSICONV_E_OK; |
128 | } |
192 | } |
129 | |
193 | |
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194 | int psiconv_list_concat(psiconv_list l, const psiconv_list extra) |
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195 | { |
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196 | int res; |
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197 | if (l->el_size != extra->el_size) |
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198 | return -PSICONV_E_OTHER; |
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199 | if ((res = psiconv_list_resize(l, |
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200 | l->cur_len + extra->cur_len))) |
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201 | return res; |
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202 | /* Unreadable but correct. */ |
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203 | memcpy(((char *) (l->els)) + l->cur_len * l->el_size,extra->els, |
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204 | extra->cur_len * extra->el_size); |
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205 | l->cur_len += extra->cur_len; |
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206 | return 0; |
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207 | } |
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208 | |
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209 | |