1 |
|
|
/* |
2 |
|
|
* The ManaPlus Client |
3 |
|
|
* Copyright (C) 2013-2018 The ManaPlus Developers |
4 |
|
|
* |
5 |
|
|
* This file is part of The ManaPlus Client. |
6 |
|
|
* |
7 |
|
|
* This program is free software; you can redistribute it and/or modify |
8 |
|
|
* it under the terms of the GNU General Public License as published by |
9 |
|
|
* the Free Software Foundation; either version 2 of the License, or |
10 |
|
|
* any later version. |
11 |
|
|
* |
12 |
|
|
* This program is distributed in the hope that it will be useful, |
13 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 |
|
|
* GNU General Public License for more details. |
16 |
|
|
* |
17 |
|
|
* You should have received a copy of the GNU General Public License |
18 |
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>. |
19 |
|
|
*/ |
20 |
|
|
|
21 |
|
|
#include "fs/virtfs/fsdirrwops.h" |
22 |
|
|
|
23 |
|
|
#include "fs/virtfs/file.h" |
24 |
|
|
|
25 |
|
|
#include "utils/cast.h" |
26 |
|
|
#include "utils/checkutils.h" |
27 |
|
|
|
28 |
|
|
PRAGMA48(GCC diagnostic push) |
29 |
|
|
PRAGMA48(GCC diagnostic ignored "-Wshadow") |
30 |
|
|
#include <SDL_rwops.h> |
31 |
|
|
PRAGMA48(GCC diagnostic pop) |
32 |
|
|
|
33 |
|
|
#include "debug.h" |
34 |
|
|
|
35 |
|
|
namespace VirtFs |
36 |
|
|
{ |
37 |
|
|
|
38 |
|
|
namespace FsDir |
39 |
|
|
{ |
40 |
|
72363 |
RWOPSINT rwops_seek(SDL_RWops *const rw, |
41 |
|
|
const RWOPSINT offset, |
42 |
|
|
const int whence) |
43 |
|
|
{ |
44 |
✓✗ |
72363 |
if (rw == nullptr) |
45 |
|
|
return -1; |
46 |
|
|
File *const handle = static_cast<File *>( |
47 |
|
72363 |
rw->hidden.unknown.data1); |
48 |
|
72363 |
FILEHTYPE fd = handle->mFd; |
49 |
|
72363 |
RWOPSINT pos = 0; |
50 |
|
|
|
51 |
✓✓ |
72363 |
if (whence == SEEK_SET) |
52 |
|
|
{ |
53 |
|
|
pos = offset; |
54 |
|
|
} |
55 |
✓✓ |
4000 |
else if (whence == SEEK_CUR) |
56 |
|
|
{ |
57 |
|
|
#ifdef USE_FILE_FOPEN |
58 |
|
3989 |
const int64_t current = ftell(fd); |
59 |
|
|
#else // USE_FILE_FOPEN |
60 |
|
|
const int64_t current = lseek(fd, 0, SEEK_CUR); |
61 |
|
|
#endif // USE_FILE_FOPEN |
62 |
|
|
|
63 |
✗✓ |
3989 |
if (current == -1) |
64 |
|
|
{ |
65 |
|
|
logger->assertLog( |
66 |
|
|
"VirtFs::rwops_seek: Can't find position in file."); |
67 |
|
|
return -1; |
68 |
|
|
} |
69 |
|
|
|
70 |
|
3989 |
pos = CAST_S32(current); |
71 |
✗✓ |
3989 |
if (static_cast<int64_t>(pos) != current) |
72 |
|
|
{ |
73 |
|
|
logger->assertLog("VirtFs::rwops_seek: " |
74 |
|
|
"Can't fit current file position in an int!"); |
75 |
|
|
return -1; |
76 |
|
|
} |
77 |
|
|
|
78 |
✓✓ |
3989 |
if (offset == 0) /* this is a "tell" call. We're done. */ |
79 |
|
|
return pos; |
80 |
|
|
|
81 |
|
25 |
pos += offset; |
82 |
|
|
} |
83 |
✓✗ |
11 |
else if (whence == SEEK_END) |
84 |
|
|
{ |
85 |
|
11 |
int64_t len = 0; |
86 |
|
|
#ifdef USE_FILE_FOPEN |
87 |
|
11 |
const long curpos = ftell(fd); |
88 |
✗✓ |
11 |
if (curpos < 0) |
89 |
|
|
{ |
90 |
|
|
reportAlways("FsDir::fileLength ftell error."); |
91 |
|
|
return -1; |
92 |
|
|
} |
93 |
|
11 |
fseek(fd, 0, SEEK_END); |
94 |
|
11 |
len = ftell(fd); |
95 |
|
|
// fseek(fd, curpos, SEEK_SET); |
96 |
|
|
#else // USE_FILE_FOPEN |
97 |
|
|
struct stat statbuf; |
98 |
|
|
if (fstat(fd, &statbuf) == -1) |
99 |
|
|
{ |
100 |
|
|
reportAlways("FsDir::fileLength error."); |
101 |
|
|
len = -1; |
102 |
|
|
} |
103 |
|
|
else |
104 |
|
|
{ |
105 |
|
|
len = static_cast<int64_t>(statbuf.st_size); |
106 |
|
|
} |
107 |
|
|
#endif // USE_FILE_FOPEN |
108 |
|
|
|
109 |
✗✓ |
11 |
if (len == -1) |
110 |
|
|
{ |
111 |
|
|
#ifdef USE_FILE_FOPEN |
112 |
|
|
if (fseek(fd, curpos, SEEK_SET) < 0) |
113 |
|
|
{ |
114 |
|
|
reportAlways("FsDir::fileLength fseek error."); |
115 |
|
|
} |
116 |
|
|
#endif // USE_FILE_FOPEN |
117 |
|
|
logger->assertLog( |
118 |
|
|
"VirtFs::rwops_seek:Can't find end of file."); |
119 |
|
|
return -1; |
120 |
|
|
} |
121 |
|
|
|
122 |
|
11 |
pos = static_cast<RWOPSINT>(len); |
123 |
|
|
if (static_cast<int64_t>(pos) != len) |
124 |
|
|
{ |
125 |
|
|
#ifdef USE_FILE_FOPEN |
126 |
|
|
fseek(fd, curpos, SEEK_SET); |
127 |
|
|
#endif // USE_FILE_FOPEN |
128 |
|
|
logger->assertLog("VirtFs::rwops_seek: " |
129 |
|
|
"Can't fit end-of-file position in an int!"); |
130 |
|
|
return -1; |
131 |
|
|
} |
132 |
|
|
|
133 |
|
11 |
pos += offset; |
134 |
|
|
} |
135 |
|
|
else |
136 |
|
|
{ |
137 |
|
|
logger->assertLog( |
138 |
|
|
"VirtFs::rwops_seek: Invalid 'whence' parameter."); |
139 |
|
|
return -1; |
140 |
|
|
} |
141 |
|
|
|
142 |
✓✓ |
68399 |
if (pos < 0) |
143 |
|
|
{ |
144 |
|
1 |
logger->assertLog("VirtFs::rwops_seek: " |
145 |
|
1 |
"Attempt to seek past start of file."); |
146 |
|
1 |
return -1; |
147 |
|
|
} |
148 |
|
|
|
149 |
|
68398 |
const int64_t res = FILESEEK(fd, pos, SEEK_SET); |
150 |
✗✓ |
68398 |
if (res == -1) |
151 |
|
|
{ |
152 |
|
|
logger->assertLog("VirtFs::rwops_seek: seek error."); |
153 |
|
|
return -1; |
154 |
|
|
} |
155 |
|
|
|
156 |
|
|
return pos; |
157 |
|
|
} |
158 |
|
|
|
159 |
|
83046 |
RWOPSSIZE rwops_read(SDL_RWops *const rw, |
160 |
|
|
void *const ptr, |
161 |
|
|
const RWOPSSIZE size, |
162 |
|
|
const RWOPSSIZE maxnum) |
163 |
|
|
{ |
164 |
✓✗ |
83046 |
if (rw == nullptr) |
165 |
|
|
return 0; |
166 |
|
|
File *const handle = static_cast<File *>( |
167 |
|
83046 |
rw->hidden.unknown.data1); |
168 |
|
83046 |
FILEHTYPE fd = handle->mFd; |
169 |
|
|
|
170 |
|
|
#ifdef USE_FILE_FOPEN |
171 |
|
83046 |
const int64_t rc = fread(ptr, size, maxnum, fd); |
172 |
|
|
#else // USE_FILE_FOPEN |
173 |
|
|
int max = size * maxnum; |
174 |
|
|
int cnt = ::read(fd, ptr, max); |
175 |
|
|
if (cnt <= 0) |
176 |
|
|
return cnt; |
177 |
|
|
const int64_t rc = cnt / size; |
178 |
|
|
#endif // USE_FILE_FOPEN |
179 |
|
|
|
180 |
|
|
#ifndef USE_FILE_FOPEN |
181 |
|
|
if (rc != static_cast<int64_t>(maxnum)) |
182 |
|
|
{ |
183 |
|
|
const int64_t pos = lseek(fd, 0, SEEK_CUR); |
184 |
|
|
struct stat statbuf; |
185 |
|
|
if (fstat(fd, &statbuf) == -1) |
186 |
|
|
{ |
187 |
|
|
reportAlways("FsDir::fileLength error."); |
188 |
|
|
return CAST_S32(rc); |
189 |
|
|
} |
190 |
|
|
} |
191 |
|
|
#endif // USE_FILE_FOPEN |
192 |
|
83046 |
return CAST_S32(rc); |
193 |
|
|
} |
194 |
|
|
|
195 |
|
|
RWOPSSIZE rwops_write(SDL_RWops *const rw, |
196 |
|
|
const void *const ptr, |
197 |
|
|
const RWOPSSIZE size, |
198 |
|
|
const RWOPSSIZE maxnum) |
199 |
|
|
{ |
200 |
|
|
if (rw == nullptr) |
201 |
|
|
return 0; |
202 |
|
|
File *const handle = static_cast<File *>( |
203 |
|
|
rw->hidden.unknown.data1); |
204 |
|
|
FILEHTYPE fd = handle->mFd; |
205 |
|
|
|
206 |
|
|
#ifdef USE_FILE_FOPEN |
207 |
|
|
const int64_t rc = fwrite(ptr, size, maxnum, fd); |
208 |
|
|
#else // USE_FILE_FOPEN |
209 |
|
|
int max = size * maxnum; |
210 |
|
|
int cnt = ::write(fd, ptr, max); |
211 |
|
|
if (cnt <= 0) |
212 |
|
|
return cnt; |
213 |
|
|
const int64_t rc = cnt / size; |
214 |
|
|
#endif // USE_FILE_FOPEN |
215 |
|
|
|
216 |
|
|
#ifndef USE_FILE_FOPEN |
217 |
|
|
if (rc != static_cast<int64_t>(maxnum)) |
218 |
|
|
{ |
219 |
|
|
const int64_t pos = lseek(fd, 0, SEEK_CUR); |
220 |
|
|
struct stat statbuf; |
221 |
|
|
if (fstat(fd, &statbuf) == -1) |
222 |
|
|
{ |
223 |
|
|
reportAlways("FsDir::fileLength error."); |
224 |
|
|
return CAST_S32(rc); |
225 |
|
|
} |
226 |
|
|
} |
227 |
|
|
#endif // USE_FILE_FOPEN |
228 |
|
|
|
229 |
|
|
return CAST_S32(rc); |
230 |
|
|
} |
231 |
|
|
|
232 |
|
2319 |
int rwops_close(SDL_RWops *const rw) |
233 |
|
|
{ |
234 |
✓✗ |
2319 |
if (rw == nullptr) |
235 |
|
|
return 0; |
236 |
|
|
File *const handle = static_cast<File*>( |
237 |
|
2319 |
rw->hidden.unknown.data1); |
238 |
✓✗ |
2319 |
delete handle; |
239 |
|
2319 |
SDL_FreeRW(rw); |
240 |
|
2319 |
return 0; |
241 |
|
|
} |
242 |
|
|
|
243 |
|
|
#ifdef USE_SDL2 |
244 |
|
767 |
RWOPSINT rwops_size(SDL_RWops *const rw) |
245 |
|
|
{ |
246 |
|
|
File *const handle = static_cast<File *>( |
247 |
|
767 |
rw->hidden.unknown.data1); |
248 |
|
767 |
FILEHTYPE fd = handle->mFd; |
249 |
|
|
#ifdef USE_FILE_FOPEN |
250 |
|
767 |
const long pos = ftell(fd); |
251 |
|
767 |
fseek(fd, 0, SEEK_END); |
252 |
|
767 |
const long sz = ftell(fd); |
253 |
|
767 |
fseek(fd, pos, SEEK_SET); |
254 |
|
767 |
return sz; |
255 |
|
|
#else // USE_FILE_FOPEN |
256 |
|
|
struct stat statbuf; |
257 |
|
|
if (fstat(fd, &statbuf) == -1) |
258 |
|
|
{ |
259 |
|
|
reportAlways("FsDir::fileLength error."); |
260 |
|
|
return -1; |
261 |
|
|
} |
262 |
|
|
return static_cast<int64_t>(statbuf.st_size); |
263 |
|
|
#endif // USE_FILE_FOPEN |
264 |
|
|
} |
265 |
|
|
#endif // USE_SDL2 |
266 |
|
|
|
267 |
|
|
} // namespace FsDir |
268 |
|
|
|
269 |
|
|
} // namespace VirtFs |