Mercurial > hg > dmlib
annotate src/dmlib.c @ 957:b66653c9acb3
Oops, forgot to add const in the actual function .. 100L.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Fri, 27 Feb 2015 02:21:57 +0200 |
parents | 6b2f41844580 |
children | 985225a93aeb |
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 | |
955 | 147 /* |
148 * Error handling and messages | |
0 | 149 */ |
150 #define DM_SYSTEM_ERRORS 100000 | |
151 | |
955 | 152 |
0 | 153 int dmGetErrno() |
154 { | |
155 return DM_SYSTEM_ERRORS + errno; | |
156 } | |
157 | |
158 | |
957
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159 const char *dmErrorStr(const int error) |
0 | 160 { |
161 if (error >= DM_SYSTEM_ERRORS) | |
162 return strerror(error - DM_SYSTEM_ERRORS); | |
163 | |
164 switch (error) | |
165 { | |
166 case DMERR_OK: return "No error"; | |
167 case DMERR_FOPEN: return "File open error"; | |
168 case DMERR_FREAD: return "Read error"; | |
169 case DMERR_FWRITE: return "Write error"; | |
170 case DMERR_FSEEK: return "Seek error"; | |
171 case DMERR_NOT_FOUND: return "Resource not found"; | |
172 | |
173 case DMERR_INVALID_DATA: return "Invalid data"; | |
174 case DMERR_MALLOC: return "Memory allocation failure"; | |
175 case DMERR_ALREADY_INIT: return "Already initialized"; | |
176 case DMERR_INIT_FAIL: return "Initialization failed"; | |
177 case DMERR_INVALID_ARGS: return "Invalid arguments"; | |
178 | |
179 case DMERR_NULLPTR: return "NULL pointer"; | |
180 case DMERR_NOT_SUPPORTED: return "Operation not supported"; | |
181 case DMERR_OUT_OF_DATA: return "Out of data"; | |
182 case DMERR_EXTRA_DATA: return "Extra data"; | |
183 case DMERR_BOUNDS: return "Bounds check failed"; | |
184 | |
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185 case DMERR_DATA_ERROR: return "Data decoding/encoding/parsing error"; |
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186 |
0 | 187 case DMERR_NOTPACK: return "File is not a PACK"; |
188 case DMERR_VERSION: return "Unsupported PACK version"; | |
189 case DMERR_INVALID: return "Invalid data, corrupted file"; | |
190 case DMERR_COMPRESSION: return "Error in compression"; | |
191 | |
192 default: return "Unknown error"; | |
193 } | |
194 } | |
294
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195 |
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196 |
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197 #ifdef DM_MUTEX_DEBUG |
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198 |
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199 static DMMutexLock * dmGetMutexThreadIDLock(DMMutex *mutex) |
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200 { |
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201 Uint32 id = SDL_ThreadID(); |
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202 int i; |
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203 for (i = 0; i < 8; i++) |
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204 { |
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205 DMMutexLock *lock = &(mutex->locks[i]); |
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206 if (lock->used && lock->id == id) |
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207 return lock; |
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208 } |
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209 return NULL; |
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210 } |
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211 |
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212 static void dmPrintMutexLocks(DMMutex *mutex, const char *state, const char *file, const int line) |
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213 { |
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214 int i; |
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215 |
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216 fprintf(stderr, |
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217 "----------------------\n" |
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218 "%s --> %p @ %s:%d\n" |
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219 "Current thread: %d\n" |
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220 "Mutex : %p (created @ %s:%d)\n", |
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221 state, mutex, file, line, |
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222 SDL_ThreadID(), mutex, mutex->cr_file, mutex->cr_line); |
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223 |
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224 for (i = 0; i < 8; i++) |
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225 { |
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226 DMMutexLock *lock = &(mutex->locks[i]); |
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227 if (lock->used) |
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228 { |
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229 fprintf(stderr, |
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230 "Lock #%d: thread=%d, state=%d\n", |
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231 i, lock->id, lock->state); |
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232 } |
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233 } |
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234 } |
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235 |
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236 int dmDOMutexLock(DMMutex *mutex, const char *file, const int line) |
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237 { |
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238 if (mutex != NULL) |
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239 { |
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240 dmPrintMutexLocks(mutex, "LOCKING", file, line); |
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241 |
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242 DMMutexLock *lock = dmGetMutexThreadIDLock(mutex); |
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243 if (lock != NULL) |
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244 { |
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245 int res; |
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246 if (lock->state == 0) |
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247 res = SDL_mutexP(mutex->m); |
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248 else |
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249 res = 1; |
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250 lock->state++; |
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251 fprintf(stderr, "LOCKING %p @ thread=%d done [1].\n", mutex, SDL_ThreadID()); |
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252 return res; |
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253 } |
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254 else |
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255 { |
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256 int i; |
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257 for (i = 0; i < 8; i++) |
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258 { |
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259 DMMutexLock *lock = &(mutex->locks[i]); |
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260 if (!lock->used) |
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261 { |
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262 int res; |
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263 lock->used = TRUE; |
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264 lock->id = SDL_ThreadID(); |
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265 lock->state++; |
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266 res = SDL_mutexP(mutex->m); |
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267 fprintf(stderr, "LOCKING %p @ thread=%d done [2].\n", mutex, SDL_ThreadID()); |
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268 return res; |
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269 } |
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270 } |
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271 return -2; |
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272 } |
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273 } |
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274 return -1; |
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275 } |
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276 |
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277 |
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278 int dmDOMutexUnlock(DMMutex *mutex, const char *file, const int line) |
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279 { |
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280 if (mutex != NULL) |
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281 { |
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282 dmPrintMutexLocks(mutex, "UN-LOCKING", file, line); |
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283 |
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284 DMMutexLock *lock = dmGetMutexThreadIDLock(mutex); |
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285 if (lock != NULL) |
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286 { |
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287 int res; |
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288 lock->state--; |
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289 if (lock->state == 0) |
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290 res = SDL_mutexV(mutex->m); |
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291 else |
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292 res = lock->state; |
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293 return res; |
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294 } |
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295 else |
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296 { |
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297 return -2; |
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298 } |
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299 } |
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300 return -1; |
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301 } |
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302 |
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303 |
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304 DMMutex * dmDOCreateMutex(const char *file, const int line) |
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305 { |
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306 DMMutex *mutex = dmMalloc0(sizeof(DMMutex)); |
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307 if (mutex == NULL) |
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308 return NULL; |
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309 mutex->cr_file = dm_strdup(file); |
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310 mutex->cr_line = line; |
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311 mutex->m = SDL_CreateMutex(); |
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312 return mutex; |
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313 } |
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314 |
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315 |
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316 void dmDestroyMutex(DMMutex *mutex) |
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317 { |
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318 if (mutex != NULL) |
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319 { |
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320 SDL_DestroyMutex(mutex->m); |
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321 dmFree(mutex); |
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322 } |
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323 } |
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324 |
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325 #endif |