Mercurial > hg > dmlib
annotate src/dmlib.c @ 908:03bda6477ad4
Add new error code DMERR_DATA_ERROR.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Mon, 23 Feb 2015 22:51:28 +0200 |
parents | fc272f5f2d15 |
children | 6b2f41844580 |
rev | line source |
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0 | 1 #include "dmlib.h" |
2 #include <errno.h> | |
3 | |
4 | |
5 int dmVerbosity = 0; | |
6 char *dmProgName = NULL, | |
7 *dmProgDesc = NULL, | |
8 *dmProgVersion = NULL, | |
9 *dmProgAuthor = NULL, | |
10 *dmProgLicense = NULL; | |
11 | |
12 | |
13 void dmInitProg(char *name, char *desc, char *version, char *author, char *license) | |
14 { | |
15 dmProgName = name; | |
16 dmProgDesc = desc; | |
17 dmProgVersion = version; | |
804 | 18 dmProgAuthor = author ? author : DM_PROG_AUTHOR; |
19 dmProgLicense = license ? license : DM_PROG_LICENSE; | |
0 | 20 } |
21 | |
22 | |
23 void dmPrintBanner(FILE *outFile, const char *name, const char *usage) | |
24 { | |
25 fprintf(outFile, | |
804 | 26 "\n%s v%s (%s)\n" |
27 "%s\n" | |
28 "%s\n" | |
29 "Usage: %s %s\n", | |
30 dmProgName, dmProgVersion, dmProgDesc, | |
31 dmProgAuthor, dmProgLicense, name, usage); | |
0 | 32 } |
33 | |
34 | |
35 void dmMsgVA(int level, const char *fmt, va_list ap) | |
36 { | |
37 if (dmVerbosity >= level) | |
38 { | |
39 fprintf(stderr, "%s: ", dmProgName); | |
40 vfprintf(stderr, fmt, ap); | |
41 } | |
42 } | |
43 | |
44 | |
45 void dmPrintVA(int level, const char *fmt, va_list ap) | |
46 { | |
47 if (dmVerbosity >= level) | |
48 { | |
49 vfprintf(stderr, fmt, ap); | |
50 } | |
51 } | |
52 | |
53 | |
54 void dmErrorVA(const char *fmt, va_list ap) | |
55 { | |
56 fprintf(stderr, "%s: ", dmProgName); | |
57 vfprintf(stderr, fmt, ap); | |
58 } | |
59 | |
60 | |
61 void dmError(const char *fmt, ...) | |
62 { | |
63 va_list ap; | |
64 | |
65 va_start(ap, fmt); | |
66 dmErrorVA(fmt, ap); | |
67 va_end(ap); | |
68 } | |
69 | |
70 | |
71 void dmMsg(int level, const char *fmt, ...) | |
72 { | |
73 va_list ap; | |
74 | |
75 va_start(ap, fmt); | |
76 dmMsgVA(level, fmt, ap); | |
77 va_end(ap); | |
78 } | |
79 | |
80 | |
81 void dmPrint(int level, const char *fmt, ...) | |
82 { | |
83 va_list ap; | |
84 | |
85 va_start(ap, fmt); | |
86 dmPrintVA(level, fmt, ap); | |
87 va_end(ap); | |
88 } | |
89 | |
90 | |
91 /* Memory handling routines | |
92 */ | |
93 void *dmMalloc(size_t l) | |
94 { | |
95 return malloc(l); | |
96 } | |
97 | |
98 | |
99 void *dmMalloc0(size_t l) | |
100 { | |
101 return calloc(1, l); | |
102 } | |
103 | |
104 | |
105 void *dmCalloc(size_t n, size_t l) | |
106 { | |
107 return calloc(n, l); | |
108 } | |
109 | |
110 | |
111 void *dmRealloc(void *p, size_t l) | |
112 { | |
113 return realloc(p, l); | |
114 } | |
115 | |
116 | |
117 void dmFree(void *p) | |
118 { | |
119 /* Check for NULL pointers for portability due to some libc | |
120 * implementations not handling free(NULL) too well. | |
121 */ | |
122 if (p) free(p); | |
123 } | |
124 | |
125 | |
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126 BOOL dmGetIntVal(const char *s, unsigned int *i) |
0 | 127 { |
128 if (s[0] == '$') | |
129 { | |
130 if (sscanf(&s[1], "%x", i) < 1) | |
131 return FALSE; | |
132 } | |
133 else if (s[0] == '0' && s[1] == 'x') | |
134 { | |
135 if (sscanf(&s[2], "%x", i) < 1) | |
136 return FALSE; | |
137 } | |
138 else | |
139 { | |
140 if (sscanf(s, "%u", i) < 1) | |
141 return FALSE; | |
142 } | |
143 return TRUE; | |
144 } | |
145 | |
146 | |
147 /* Error handling | |
148 */ | |
149 #define DM_SYSTEM_ERRORS 100000 | |
150 | |
151 int dmGetErrno() | |
152 { | |
153 return DM_SYSTEM_ERRORS + errno; | |
154 } | |
155 | |
156 | |
157 const char *dmErrorStr(int error) | |
158 { | |
159 if (error >= DM_SYSTEM_ERRORS) | |
160 return strerror(error - DM_SYSTEM_ERRORS); | |
161 | |
162 switch (error) | |
163 { | |
164 case DMERR_OK: return "No error"; | |
165 case DMERR_FOPEN: return "File open error"; | |
166 case DMERR_FREAD: return "Read error"; | |
167 case DMERR_FWRITE: return "Write error"; | |
168 case DMERR_FSEEK: return "Seek error"; | |
169 case DMERR_NOT_FOUND: return "Resource not found"; | |
170 | |
171 case DMERR_INVALID_DATA: return "Invalid data"; | |
172 case DMERR_MALLOC: return "Memory allocation failure"; | |
173 case DMERR_ALREADY_INIT: return "Already initialized"; | |
174 case DMERR_INIT_FAIL: return "Initialization failed"; | |
175 case DMERR_INVALID_ARGS: return "Invalid arguments"; | |
176 | |
177 case DMERR_NULLPTR: return "NULL pointer"; | |
178 case DMERR_NOT_SUPPORTED: return "Operation not supported"; | |
179 case DMERR_OUT_OF_DATA: return "Out of data"; | |
180 case DMERR_EXTRA_DATA: return "Extra data"; | |
181 case DMERR_BOUNDS: return "Bounds check failed"; | |
182 | |
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183 case DMERR_DATA_ERROR: return "Data decoding/encoding/parsing error"; |
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184 |
0 | 185 case DMERR_NOTPACK: return "File is not a PACK"; |
186 case DMERR_VERSION: return "Unsupported PACK version"; | |
187 case DMERR_INVALID: return "Invalid data, corrupted file"; | |
188 case DMERR_COMPRESSION: return "Error in compression"; | |
189 | |
190 default: return "Unknown error"; | |
191 } | |
192 } | |
294
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193 |
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194 |
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195 #ifdef DM_MUTEX_DEBUG |
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196 |
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197 static DMMutexLock * dmGetMutexThreadIDLock(DMMutex *mutex) |
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198 { |
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199 Uint32 id = SDL_ThreadID(); |
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200 int i; |
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201 for (i = 0; i < 8; i++) |
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202 { |
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203 DMMutexLock *lock = &(mutex->locks[i]); |
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204 if (lock->used && lock->id == id) |
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205 return lock; |
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206 } |
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207 return NULL; |
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208 } |
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209 |
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210 static void dmPrintMutexLocks(DMMutex *mutex, const char *state, const char *file, const int line) |
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211 { |
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212 int i; |
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213 |
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214 fprintf(stderr, |
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215 "----------------------\n" |
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216 "%s --> %p @ %s:%d\n" |
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217 "Current thread: %d\n" |
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218 "Mutex : %p (created @ %s:%d)\n", |
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219 state, mutex, file, line, |
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220 SDL_ThreadID(), mutex, mutex->cr_file, mutex->cr_line); |
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221 |
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222 for (i = 0; i < 8; i++) |
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223 { |
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224 DMMutexLock *lock = &(mutex->locks[i]); |
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225 if (lock->used) |
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226 { |
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227 fprintf(stderr, |
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228 "Lock #%d: thread=%d, state=%d\n", |
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229 i, lock->id, lock->state); |
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230 } |
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231 } |
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232 } |
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233 |
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234 int dmDOMutexLock(DMMutex *mutex, const char *file, const int line) |
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235 { |
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236 if (mutex != NULL) |
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237 { |
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238 dmPrintMutexLocks(mutex, "LOCKING", file, line); |
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239 |
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240 DMMutexLock *lock = dmGetMutexThreadIDLock(mutex); |
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241 if (lock != NULL) |
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242 { |
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243 int res; |
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244 if (lock->state == 0) |
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245 res = SDL_mutexP(mutex->m); |
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246 else |
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247 res = 1; |
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248 lock->state++; |
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249 fprintf(stderr, "LOCKING %p @ thread=%d done [1].\n", mutex, SDL_ThreadID()); |
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250 return res; |
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251 } |
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252 else |
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253 { |
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254 int i; |
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255 for (i = 0; i < 8; i++) |
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256 { |
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257 DMMutexLock *lock = &(mutex->locks[i]); |
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258 if (!lock->used) |
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259 { |
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260 int res; |
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261 lock->used = TRUE; |
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262 lock->id = SDL_ThreadID(); |
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263 lock->state++; |
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264 res = SDL_mutexP(mutex->m); |
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265 fprintf(stderr, "LOCKING %p @ thread=%d done [2].\n", mutex, SDL_ThreadID()); |
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266 return res; |
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267 } |
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268 } |
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269 return -2; |
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270 } |
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271 } |
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272 return -1; |
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273 } |
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274 |
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275 |
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276 int dmDOMutexUnlock(DMMutex *mutex, const char *file, const int line) |
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277 { |
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278 if (mutex != NULL) |
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279 { |
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280 dmPrintMutexLocks(mutex, "UN-LOCKING", file, line); |
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281 |
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282 DMMutexLock *lock = dmGetMutexThreadIDLock(mutex); |
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283 if (lock != NULL) |
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284 { |
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285 int res; |
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286 lock->state--; |
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287 if (lock->state == 0) |
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288 res = SDL_mutexV(mutex->m); |
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289 else |
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290 res = lock->state; |
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291 return res; |
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292 } |
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293 else |
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294 { |
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295 return -2; |
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296 } |
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297 } |
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298 return -1; |
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299 } |
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300 |
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301 |
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302 DMMutex * dmDOCreateMutex(const char *file, const int line) |
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303 { |
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304 DMMutex *mutex = dmMalloc0(sizeof(DMMutex)); |
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305 if (mutex == NULL) |
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306 return NULL; |
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307 mutex->cr_file = dm_strdup(file); |
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308 mutex->cr_line = line; |
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309 mutex->m = SDL_CreateMutex(); |
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310 return mutex; |
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311 } |
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312 |
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313 |
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314 void dmDestroyMutex(DMMutex *mutex) |
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315 { |
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316 if (mutex != NULL) |
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317 { |
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318 SDL_DestroyMutex(mutex->m); |
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319 dmFree(mutex); |
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320 } |
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321 } |
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322 |
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323 #endif |