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1 | /** |
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2 | * ZANavi, Zoff Android Navigation system. |
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3 | * Copyright (C) 2011-2012 Zoff <zoff@zoff.cc> |
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4 | * |
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5 | * This program is free software; you can redistribute it and/or |
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6 | * modify it under the terms of the GNU General Public License |
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7 | * version 2 as published by the Free Software Foundation. |
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8 | * |
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9 | * This program is distributed in the hope that it will be useful, |
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10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 | * GNU General Public License for more details. |
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13 | * |
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14 | * You should have received a copy of the GNU General Public License |
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15 | * along with this program; if not, write to the |
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16 | * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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17 | * Boston, MA 02110-1301, USA. |
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18 | */ |
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19 | |
1 | /** |
20 | /** |
2 | * Navit, a modular navigation system. |
21 | * Navit, a modular navigation system. |
3 | * Copyright (C) 2005-2011 Navit Team |
22 | * Copyright (C) 2005-2011 Navit Team |
4 | * |
23 | * |
5 | * This program is free software; you can redistribute it and/or |
24 | * This program is free software; you can redistribute it and/or |
… | |
… | |
14 | * You should have received a copy of the GNU General Public License |
33 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write to the |
34 | * along with this program; if not, write to the |
16 | * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
35 | * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
17 | * Boston, MA 02110-1301, USA. |
36 | * Boston, MA 02110-1301, USA. |
18 | */ |
37 | */ |
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38 | |
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39 | #define _FILE_OFFSET_BITS 64 |
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40 | #define _LARGEFILE_SOURCE |
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41 | #define _LARGEFILE64_SOURCE |
19 | #include <stdlib.h> |
42 | #include <stdlib.h> |
20 | #include "maptool.h" |
43 | #include "maptool.h" |
21 | #include "debug.h" |
44 | #include "debug.h" |
22 | |
45 | |
23 | void |
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24 | save_buffer(char *filename, struct buffer *b, long long offset) |
46 | void save_buffer(char *filename, struct buffer *b, long long offset) |
25 | { |
47 | { |
26 | FILE *f; |
48 | FILE *f; |
27 | f=fopen(filename,"rb+"); |
49 | f = fopen(filename, "rb+"); |
28 | if (! f) |
50 | if (!f) |
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51 | { |
29 | f=fopen(filename,"wb+"); |
52 | f = fopen(filename, "wb+"); |
30 | |
53 | } |
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54 | |
31 | dbg_assert(f != NULL); |
55 | dbg_assert(f != NULL); |
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56 | |
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57 | off_t offset_64 = (off_t) offset; |
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58 | |
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59 | if (verbose_mode) fprintf(stderr,"save_buffer:seeking bytes in %s to "LONGLONG_FMT"\n", filename, offset_64); |
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60 | if (verbose_mode) fprintf(stderr,"save_buffer: base "LONGLONG_FMT"\n", b->base); |
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61 | |
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62 | int ret; |
32 | fseek(f, offset, SEEK_SET); |
63 | // ret=fseek(f, offset, SEEK_SET); |
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64 | ret = fseeko(f, offset_64, SEEK_SET); |
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65 | //fprintf(stderr,"ret.code of seek=%d\n", ret); |
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66 | size_t ret2; |
33 | fwrite(b->base, b->size, 1, f); |
67 | ret2 = fwrite(b->base, b->size, 1, f); |
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68 | //fprintf(stderr,"ret.code of fwrite=%d\n", ret2); |
34 | fclose(f); |
69 | fclose(f); |
35 | } |
70 | } |
36 | |
71 | |
37 | void |
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38 | load_buffer(char *filename, struct buffer *b, long long offset, long long size) |
72 | void load_buffer_fp(FILE *f, struct buffer *b, long long offset, long long size) |
39 | { |
73 | { |
40 | FILE *f; |
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41 | long long len; |
74 | long long len; |
42 | int ret; |
75 | int ret; |
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76 | |
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77 | if (verbose_mode) fprintf(stderr,"load_buffer:offset="LONGLONG_FMT" size="LONGLONG_FMT"\n", offset, size); |
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78 | |
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79 | // fprintf(stderr,"load_buffer 1 buffer ptr=%d\n", b->base); |
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80 | |
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81 | int reuse_buffer = 0; |
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82 | |
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83 | if (verbose_mode) fprintf(stderr,"load_buffer:info has b->malloced=%d\n", b->malloced); |
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84 | if (verbose_mode) fprintf(stderr,"load_buffer:info has b->size="LONGLONG_FMT"\n", (size_t)b->size); |
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85 | if (verbose_mode) fprintf(stderr,"load_buffer:info want size="LONGLONG_FMT"\n", size); |
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86 | if (verbose_mode) fprintf(stderr,"load_buffer:info base="LONGLONG_FMT"\n", b->base); |
43 | if (b->base) |
87 | if (b->base) |
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88 | { |
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89 | if (size > b->size) |
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90 | { |
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91 | if (verbose_mode) fprintf(stderr, "load_buffer:# freeing buffer #\n"); |
44 | free(b->base); |
92 | free(b->base); |
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93 | //fprintf(stderr,"load_buffer 2 buffer ptr=%d\n", b->base); |
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94 | b->base = NULL; |
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95 | } |
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96 | else |
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97 | { |
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98 | if (verbose_mode) fprintf(stderr, "load_buffer:@ re-using buffer @\n"); |
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99 | reuse_buffer = 1; |
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100 | } |
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101 | } |
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102 | else |
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103 | { |
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104 | //fprintf(stderr,"* no buffer to free *\n"); |
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105 | } |
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106 | //fprintf(stderr,"load_buffer 3 buffer ptr=%d\n", b->base); |
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107 | |
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108 | if (!reuse_buffer) |
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109 | { |
45 | b->malloced=0; |
110 | b->malloced = 0; |
46 | f=fopen(filename,"rb"); |
111 | } |
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112 | |
47 | fseek(f, 0, SEEK_END); |
113 | fseek(f, 0, SEEK_END); |
48 | len=ftell(f); |
114 | len = ftello(f); // 64bit |
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115 | //fprintf(stderr,"filep=%p\n", f); |
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116 | //fprintf(stderr,"load_buffer ftell="LONGLONG_FMT"\n", len); |
49 | if (offset+size > len) { |
117 | if (offset + size > len) |
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118 | { |
50 | size=len-offset; |
119 | size = len - offset; |
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120 | if (verbose_mode) fprintf(stderr,"load_buffer new size="LONGLONG_FMT"\n", size); |
51 | ret=1; |
121 | ret = 1; |
52 | } |
122 | } |
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123 | |
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124 | b->size = size; |
53 | b->size=b->malloced=size; |
125 | b->malloced = size; |
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126 | |
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127 | off_t offset_64 = (off_t) offset; |
54 | fprintf(stderr,"reading "LONGLONG_FMT" bytes from %s at "LONGLONG_FMT"\n", b->size, filename, offset); |
128 | if (verbose_mode) fprintf(stderr,"load_buffer:reading "LONGLONG_FMT" bytes at "LONGLONG_FMT"\n", b->size, offset_64); |
55 | fseek(f, offset, SEEK_SET); |
129 | |
56 | b->base=malloc(b->size); |
130 | int ret3; |
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131 | ret3 = fseeko(f, offset_64, SEEK_SET); // 64bit |
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132 | |
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133 | if (!reuse_buffer) |
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134 | { |
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135 | b->base = malloc((size_t) size); |
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136 | if (verbose_mode) fprintf(stderr, "load_buffer:ret.code of malloc="LONGLONG_FMT"\n", b->base); |
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137 | } |
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138 | |
57 | dbg_assert(b->base != NULL); |
139 | dbg_assert(b->base != NULL); |
58 | fread(b->base, b->size, 1, f); |
140 | fread(b->base, b->size, 1, f); |
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141 | } |
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142 | |
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143 | void load_buffer(char *filename, struct buffer *b, long long offset, long long size) |
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144 | { |
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145 | // wrapper for "filename" -> "file pointer" |
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146 | FILE *f; |
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147 | |
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148 | f = fopen(filename, "rb"); |
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149 | load_buffer_fp(f, b, offset, size); |
59 | fclose(f); |
150 | fclose(f); |
60 | } |
151 | } |
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152 | |