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