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00023 #ifndef _ASTERISK_UTILS_H
00024 #define _ASTERISK_UTILS_H
00025
00026 #include "asterisk/network.h"
00027
00028 #include <time.h>
00029 #include <unistd.h>
00030
00031 #include "asterisk/lock.h"
00032 #include "asterisk/time.h"
00033 #include "asterisk/logger.h"
00034 #include "asterisk/localtime.h"
00035
00036
00037
00038
00039
00040
00041
00042
00043
00044
00045
00046
00047
00048
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00057
00058
00059 extern unsigned int __unsigned_int_flags_dummy;
00060
00061 #define ast_test_flag(p,flag) ({ \
00062 typeof ((p)->flags) __p = (p)->flags; \
00063 typeof (__unsigned_int_flags_dummy) __x = 0; \
00064 (void) (&__p == &__x); \
00065 ((p)->flags & (flag)); \
00066 })
00067
00068 #define ast_set_flag(p,flag) do { \
00069 typeof ((p)->flags) __p = (p)->flags; \
00070 typeof (__unsigned_int_flags_dummy) __x = 0; \
00071 (void) (&__p == &__x); \
00072 ((p)->flags |= (flag)); \
00073 } while(0)
00074
00075 #define ast_clear_flag(p,flag) do { \
00076 typeof ((p)->flags) __p = (p)->flags; \
00077 typeof (__unsigned_int_flags_dummy) __x = 0; \
00078 (void) (&__p == &__x); \
00079 ((p)->flags &= ~(flag)); \
00080 } while(0)
00081
00082 #define ast_copy_flags(dest,src,flagz) do { \
00083 typeof ((dest)->flags) __d = (dest)->flags; \
00084 typeof ((src)->flags) __s = (src)->flags; \
00085 typeof (__unsigned_int_flags_dummy) __x = 0; \
00086 (void) (&__d == &__x); \
00087 (void) (&__s == &__x); \
00088 (dest)->flags &= ~(flagz); \
00089 (dest)->flags |= ((src)->flags & (flagz)); \
00090 } while (0)
00091
00092 #define ast_set2_flag(p,value,flag) do { \
00093 typeof ((p)->flags) __p = (p)->flags; \
00094 typeof (__unsigned_int_flags_dummy) __x = 0; \
00095 (void) (&__p == &__x); \
00096 if (value) \
00097 (p)->flags |= (flag); \
00098 else \
00099 (p)->flags &= ~(flag); \
00100 } while (0)
00101
00102 #define ast_set_flags_to(p,flag,value) do { \
00103 typeof ((p)->flags) __p = (p)->flags; \
00104 typeof (__unsigned_int_flags_dummy) __x = 0; \
00105 (void) (&__p == &__x); \
00106 (p)->flags &= ~(flag); \
00107 (p)->flags |= (value); \
00108 } while (0)
00109
00110
00111
00112
00113
00114
00115
00116 extern uint64_t __unsigned_int_flags_dummy64;
00117
00118 #define ast_test_flag64(p,flag) ({ \
00119 typeof ((p)->flags) __p = (p)->flags; \
00120 typeof (__unsigned_int_flags_dummy64) __x = 0; \
00121 (void) (&__p == &__x); \
00122 ((p)->flags & (flag)); \
00123 })
00124
00125 #define ast_set_flag64(p,flag) do { \
00126 typeof ((p)->flags) __p = (p)->flags; \
00127 typeof (__unsigned_int_flags_dummy64) __x = 0; \
00128 (void) (&__p == &__x); \
00129 ((p)->flags |= (flag)); \
00130 } while(0)
00131
00132 #define ast_clear_flag64(p,flag) do { \
00133 typeof ((p)->flags) __p = (p)->flags; \
00134 typeof (__unsigned_int_flags_dummy64) __x = 0; \
00135 (void) (&__p == &__x); \
00136 ((p)->flags &= ~(flag)); \
00137 } while(0)
00138
00139 #define ast_copy_flags64(dest,src,flagz) do { \
00140 typeof ((dest)->flags) __d = (dest)->flags; \
00141 typeof ((src)->flags) __s = (src)->flags; \
00142 typeof (__unsigned_int_flags_dummy64) __x = 0; \
00143 (void) (&__d == &__x); \
00144 (void) (&__s == &__x); \
00145 (dest)->flags &= ~(flagz); \
00146 (dest)->flags |= ((src)->flags & (flagz)); \
00147 } while (0)
00148
00149 #define ast_set2_flag64(p,value,flag) do { \
00150 typeof ((p)->flags) __p = (p)->flags; \
00151 typeof (__unsigned_int_flags_dummy64) __x = 0; \
00152 (void) (&__p == &__x); \
00153 if (value) \
00154 (p)->flags |= (flag); \
00155 else \
00156 (p)->flags &= ~(flag); \
00157 } while (0)
00158
00159 #define ast_set_flags_to64(p,flag,value) do { \
00160 typeof ((p)->flags) __p = (p)->flags; \
00161 typeof (__unsigned_int_flags_dummy64) __x = 0; \
00162 (void) (&__p == &__x); \
00163 (p)->flags &= ~(flag); \
00164 (p)->flags |= (value); \
00165 } while (0)
00166
00167
00168
00169
00170
00171 #define ast_test_flag_nonstd(p,flag) \
00172 ((p)->flags & (flag))
00173
00174 #define ast_set_flag_nonstd(p,flag) do { \
00175 ((p)->flags |= (flag)); \
00176 } while(0)
00177
00178 #define ast_clear_flag_nonstd(p,flag) do { \
00179 ((p)->flags &= ~(flag)); \
00180 } while(0)
00181
00182 #define ast_copy_flags_nonstd(dest,src,flagz) do { \
00183 (dest)->flags &= ~(flagz); \
00184 (dest)->flags |= ((src)->flags & (flagz)); \
00185 } while (0)
00186
00187 #define ast_set2_flag_nonstd(p,value,flag) do { \
00188 if (value) \
00189 (p)->flags |= (flag); \
00190 else \
00191 (p)->flags &= ~(flag); \
00192 } while (0)
00193
00194 #define AST_FLAGS_ALL UINT_MAX
00195
00196
00197
00198 struct ast_flags {
00199 unsigned int flags;
00200 };
00201
00202
00203
00204 struct ast_flags64 {
00205 uint64_t flags;
00206 };
00207
00208 struct ast_hostent {
00209 struct hostent hp;
00210 char buf[1024];
00211 };
00212
00213
00214 struct hostent *ast_gethostbyname(const char *host, struct ast_hostent *hp);
00215
00216
00217 void ast_md5_hash(char *output, char *input);
00218
00219 void ast_sha1_hash(char *output, char *input);
00220
00221 int ast_base64encode_full(char *dst, const unsigned char *src, int srclen, int max, int linebreaks);
00222
00223
00224
00225
00226
00227
00228
00229
00230
00231 int ast_base64encode(char *dst, const unsigned char *src, int srclen, int max);
00232
00233
00234
00235
00236
00237
00238
00239
00240
00241
00242 int ast_base64decode(unsigned char *dst, const char *src, int max);
00243
00244
00245
00246
00247
00248
00249
00250
00251
00252
00253
00254
00255
00256
00257
00258
00259 char *ast_uri_encode(const char *string, char *outbuf, int buflen, int doreserved);
00260
00261
00262
00263
00264 void ast_uri_decode(char *s);
00265
00266 static force_inline void ast_slinear_saturated_add(short *input, short *value)
00267 {
00268 int res;
00269
00270 res = (int) *input + *value;
00271 if (res > 32767)
00272 *input = 32767;
00273 else if (res < -32767)
00274 *input = -32767;
00275 else
00276 *input = (short) res;
00277 }
00278
00279 static force_inline void ast_slinear_saturated_subtract(short *input, short *value)
00280 {
00281 int res;
00282
00283 res = (int) *input - *value;
00284 if (res > 32767)
00285 *input = 32767;
00286 else if (res < -32767)
00287 *input = -32767;
00288 else
00289 *input = (short) res;
00290 }
00291
00292 static force_inline void ast_slinear_saturated_multiply(short *input, short *value)
00293 {
00294 int res;
00295
00296 res = (int) *input * *value;
00297 if (res > 32767)
00298 *input = 32767;
00299 else if (res < -32767)
00300 *input = -32767;
00301 else
00302 *input = (short) res;
00303 }
00304
00305 static force_inline void ast_slinear_saturated_divide(short *input, short *value)
00306 {
00307 *input /= *value;
00308 }
00309
00310 #ifdef localtime_r
00311 #undef localtime_r
00312 #endif
00313 #define localtime_r __dont_use_localtime_r_use_ast_localtime_instead__
00314
00315 int ast_utils_init(void);
00316 int ast_wait_for_input(int fd, int ms);
00317
00318
00319
00320
00321
00322
00323
00324
00325
00326
00327 int ast_carefulwrite(int fd, char *s, int len, int timeoutms);
00328
00329
00330
00331
00332
00333
00334
00335
00336
00337
00338
00339
00340
00341
00342
00343
00344
00345
00346 int ast_careful_fwrite(FILE *f, int fd, const char *s, size_t len, int timeoutms);
00347
00348
00349
00350
00351
00352 #define AST_STACKSIZE (((sizeof(void *) * 8 * 8) - 16) * 1024)
00353
00354 #if defined(LOW_MEMORY)
00355 #define AST_BACKGROUND_STACKSIZE (((sizeof(void *) * 8 * 2) - 16) * 1024)
00356 #else
00357 #define AST_BACKGROUND_STACKSIZE AST_STACKSIZE
00358 #endif
00359
00360 void ast_register_thread(char *name);
00361 void ast_unregister_thread(void *id);
00362
00363 int ast_pthread_create_stack(pthread_t *thread, pthread_attr_t *attr, void *(*start_routine)(void *),
00364 void *data, size_t stacksize, const char *file, const char *caller,
00365 int line, const char *start_fn);
00366
00367 int ast_pthread_create_detached_stack(pthread_t *thread, pthread_attr_t *attr, void*(*start_routine)(void *),
00368 void *data, size_t stacksize, const char *file, const char *caller,
00369 int line, const char *start_fn);
00370
00371 #define ast_pthread_create(a, b, c, d) \
00372 ast_pthread_create_stack(a, b, c, d, \
00373 0, __FILE__, __FUNCTION__, __LINE__, #c)
00374
00375 #define ast_pthread_create_detached(a, b, c, d) \
00376 ast_pthread_create_detached_stack(a, b, c, d, \
00377 0, __FILE__, __FUNCTION__, __LINE__, #c)
00378
00379 #define ast_pthread_create_background(a, b, c, d) \
00380 ast_pthread_create_stack(a, b, c, d, \
00381 AST_BACKGROUND_STACKSIZE, \
00382 __FILE__, __FUNCTION__, __LINE__, #c)
00383
00384 #define ast_pthread_create_detached_background(a, b, c, d) \
00385 ast_pthread_create_detached_stack(a, b, c, d, \
00386 AST_BACKGROUND_STACKSIZE, \
00387 __FILE__, __FUNCTION__, __LINE__, #c)
00388
00389
00390
00391
00392
00393
00394
00395
00396
00397 char *ast_process_quotes_and_slashes(char *start, char find, char replace_with);
00398
00399 long int ast_random(void);
00400
00401
00402
00403
00404
00405
00406
00407
00408 #ifdef __AST_DEBUG_MALLOC
00409 static void ast_free_ptr(void *ptr) attribute_unused;
00410 static void ast_free_ptr(void *ptr)
00411 {
00412 ast_free(ptr);
00413 }
00414 #else
00415 #define ast_free free
00416 #define ast_free_ptr ast_free
00417 #endif
00418
00419 #ifndef __AST_DEBUG_MALLOC
00420
00421 #define MALLOC_FAILURE_MSG \
00422 ast_log(LOG_ERROR, "Memory Allocation Failure in function %s at line %d of %s\n", func, lineno, file);
00423
00424
00425
00426
00427
00428
00429
00430
00431 #define ast_malloc(len) \
00432 _ast_malloc((len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00433
00434 AST_INLINE_API(
00435 void * attribute_malloc _ast_malloc(size_t len, const char *file, int lineno, const char *func),
00436 {
00437 void *p;
00438
00439 if (!(p = malloc(len)))
00440 MALLOC_FAILURE_MSG;
00441
00442 return p;
00443 }
00444 )
00445
00446
00447
00448
00449
00450
00451
00452
00453
00454 #define ast_calloc(num, len) \
00455 _ast_calloc((num), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00456
00457 AST_INLINE_API(
00458 void * attribute_malloc _ast_calloc(size_t num, size_t len, const char *file, int lineno, const char *func),
00459 {
00460 void *p;
00461
00462 if (!(p = calloc(num, len)))
00463 MALLOC_FAILURE_MSG;
00464
00465 return p;
00466 }
00467 )
00468
00469
00470
00471
00472
00473
00474
00475
00476
00477
00478
00479 #define ast_calloc_cache(num, len) \
00480 _ast_calloc((num), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00481
00482
00483
00484
00485
00486
00487
00488
00489
00490 #define ast_realloc(p, len) \
00491 _ast_realloc((p), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00492
00493 AST_INLINE_API(
00494 void * attribute_malloc _ast_realloc(void *p, size_t len, const char *file, int lineno, const char *func),
00495 {
00496 void *newp;
00497
00498 if (!(newp = realloc(p, len)))
00499 MALLOC_FAILURE_MSG;
00500
00501 return newp;
00502 }
00503 )
00504
00505
00506
00507
00508
00509
00510
00511
00512
00513
00514
00515
00516
00517 #define ast_strdup(str) \
00518 _ast_strdup((str), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00519
00520 AST_INLINE_API(
00521 char * attribute_malloc _ast_strdup(const char *str, const char *file, int lineno, const char *func),
00522 {
00523 char *newstr = NULL;
00524
00525 if (str) {
00526 if (!(newstr = strdup(str)))
00527 MALLOC_FAILURE_MSG;
00528 }
00529
00530 return newstr;
00531 }
00532 )
00533
00534
00535
00536
00537
00538
00539
00540
00541
00542
00543
00544
00545
00546 #define ast_strndup(str, len) \
00547 _ast_strndup((str), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
00548
00549 AST_INLINE_API(
00550 char * attribute_malloc _ast_strndup(const char *str, size_t len, const char *file, int lineno, const char *func),
00551 {
00552 char *newstr = NULL;
00553
00554 if (str) {
00555 if (!(newstr = strndup(str, len)))
00556 MALLOC_FAILURE_MSG;
00557 }
00558
00559 return newstr;
00560 }
00561 )
00562
00563
00564
00565
00566
00567
00568
00569
00570
00571 #define ast_asprintf(ret, fmt, ...) \
00572 _ast_asprintf((ret), __FILE__, __LINE__, __PRETTY_FUNCTION__, fmt, __VA_ARGS__)
00573
00574 int __attribute__((format(printf, 5, 6)))
00575 _ast_asprintf(char **ret, const char *file, int lineno, const char *func, const char *fmt, ...);
00576
00577
00578
00579
00580
00581
00582
00583
00584
00585 #define ast_vasprintf(ret, fmt, ap) \
00586 _ast_vasprintf((ret), __FILE__, __LINE__, __PRETTY_FUNCTION__, (fmt), (ap))
00587
00588 AST_INLINE_API(
00589 __attribute__((format(printf, 5, 0)))
00590 int _ast_vasprintf(char **ret, const char *file, int lineno, const char *func, const char *fmt, va_list ap),
00591 {
00592 int res;
00593
00594 if ((res = vasprintf(ret, fmt, ap)) == -1)
00595 MALLOC_FAILURE_MSG;
00596
00597 return res;
00598 }
00599 )
00600
00601 #endif
00602
00603 #if !defined(ast_strdupa) && defined(__GNUC__)
00604
00605
00606
00607
00608
00609
00610
00611 #define ast_strdupa(s) \
00612 (__extension__ \
00613 ({ \
00614 const char *__old = (s); \
00615 size_t __len = strlen(__old) + 1; \
00616 char *__new = __builtin_alloca(__len); \
00617 memcpy (__new, __old, __len); \
00618 __new; \
00619 }))
00620 #endif
00621
00622
00623
00624
00625
00626
00627
00628
00629
00630
00631
00632
00633
00634
00635 void ast_enable_packet_fragmentation(int sock);
00636
00637
00638
00639
00640
00641
00642
00643
00644
00645 int ast_mkdir(const char *path, int mode);
00646
00647 #define ARRAY_LEN(a) (sizeof(a) / sizeof(0[a]))
00648
00649 #ifdef AST_DEVMODE
00650 #define ast_assert(a) _ast_assert(a, # a, __FILE__, __LINE__, __PRETTY_FUNCTION__)
00651 static void force_inline _ast_assert(int condition, const char *condition_str,
00652 const char *file, int line, const char *function)
00653 {
00654 if (__builtin_expect(!condition, 1)) {
00655
00656
00657 ast_log(__LOG_ERROR, file, line, function, "FRACK!, Failed assertion %s (%d)\n",
00658 condition_str, condition);
00659 fprintf(stderr, "FRACK!, Failed assertion %s (%d) at line %d in %s of %s\n",
00660 condition_str, condition, line, function, file);
00661
00662
00663 usleep(1);
00664 #ifdef DO_CRASH
00665 abort();
00666
00667
00668 *((int*)0)=0;
00669 #endif
00670 }
00671 }
00672 #else
00673 #define ast_assert(a)
00674 #endif
00675
00676 #include "asterisk/strings.h"
00677
00678 #endif