The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 1 | /* |
| 2 | * xmlmemory.c: libxml memory allocator wrapper. |
| 3 | * |
| 4 | * daniel@veillard.com |
| 5 | */ |
| 6 | |
| 7 | #define IN_LIBXML |
| 8 | #include "libxml.h" |
| 9 | |
| 10 | #include <string.h> |
| 11 | |
| 12 | #ifdef HAVE_SYS_TYPES_H |
| 13 | #include <sys/types.h> |
| 14 | #endif |
| 15 | |
| 16 | #ifdef HAVE_TIME_H |
| 17 | #include <time.h> |
| 18 | #endif |
| 19 | |
| 20 | #ifdef HAVE_STDLIB_H |
| 21 | #include <stdlib.h> |
| 22 | #else |
| 23 | #ifdef HAVE_MALLOC_H |
| 24 | #include <malloc.h> |
| 25 | #endif |
| 26 | #endif |
| 27 | |
| 28 | #ifdef HAVE_CTYPE_H |
| 29 | #include <ctype.h> |
| 30 | #endif |
| 31 | |
| 32 | /* #define DEBUG_MEMORY */ |
| 33 | |
| 34 | /** |
| 35 | * MEM_LIST: |
| 36 | * |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 37 | * keep track of all allocated blocks for error reporting |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 38 | * Always build the memory list ! |
| 39 | */ |
| 40 | #ifdef DEBUG_MEMORY_LOCATION |
| 41 | #ifndef MEM_LIST |
| 42 | #define MEM_LIST /* keep a list of all the allocated memory blocks */ |
| 43 | #endif |
| 44 | #endif |
| 45 | |
| 46 | #include <libxml/globals.h> /* must come before xmlmemory.h */ |
| 47 | #include <libxml/xmlmemory.h> |
| 48 | #include <libxml/xmlerror.h> |
| 49 | #include <libxml/threads.h> |
| 50 | |
| 51 | static int xmlMemInitialized = 0; |
| 52 | static unsigned long debugMemSize = 0; |
| 53 | static unsigned long debugMemBlocks = 0; |
| 54 | static unsigned long debugMaxMemSize = 0; |
| 55 | static xmlMutexPtr xmlMemMutex = NULL; |
| 56 | |
| 57 | void xmlMallocBreakpoint(void); |
| 58 | |
| 59 | /************************************************************************ |
| 60 | * * |
Selim Gurun | 94442ad | 2013-12-30 18:23:42 -0800 | [diff] [blame] | 61 | * Macros, variables and associated types * |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 62 | * * |
| 63 | ************************************************************************/ |
| 64 | |
| 65 | #if !defined(LIBXML_THREAD_ENABLED) && !defined(LIBXML_THREAD_ALLOC_ENABLED) |
| 66 | #ifdef xmlMalloc |
| 67 | #undef xmlMalloc |
| 68 | #endif |
| 69 | #ifdef xmlRealloc |
| 70 | #undef xmlRealloc |
| 71 | #endif |
| 72 | #ifdef xmlMemStrdup |
| 73 | #undef xmlMemStrdup |
| 74 | #endif |
| 75 | #endif |
| 76 | |
| 77 | /* |
| 78 | * Each of the blocks allocated begin with a header containing informations |
| 79 | */ |
| 80 | |
| 81 | #define MEMTAG 0x5aa5 |
| 82 | |
| 83 | #define MALLOC_TYPE 1 |
| 84 | #define REALLOC_TYPE 2 |
| 85 | #define STRDUP_TYPE 3 |
| 86 | #define MALLOC_ATOMIC_TYPE 4 |
| 87 | #define REALLOC_ATOMIC_TYPE 5 |
| 88 | |
| 89 | typedef struct memnod { |
| 90 | unsigned int mh_tag; |
| 91 | unsigned int mh_type; |
| 92 | unsigned long mh_number; |
| 93 | size_t mh_size; |
| 94 | #ifdef MEM_LIST |
| 95 | struct memnod *mh_next; |
| 96 | struct memnod *mh_prev; |
| 97 | #endif |
| 98 | const char *mh_file; |
| 99 | unsigned int mh_line; |
| 100 | } MEMHDR; |
| 101 | |
| 102 | |
| 103 | #ifdef SUN4 |
| 104 | #define ALIGN_SIZE 16 |
| 105 | #else |
| 106 | #define ALIGN_SIZE sizeof(double) |
| 107 | #endif |
| 108 | #define HDR_SIZE sizeof(MEMHDR) |
| 109 | #define RESERVE_SIZE (((HDR_SIZE + (ALIGN_SIZE-1)) \ |
| 110 | / ALIGN_SIZE ) * ALIGN_SIZE) |
| 111 | |
Xin Li | e742c3a | 2017-03-02 10:59:49 -0800 | [diff] [blame] | 112 | #define MAX_SIZE_T ((size_t)-1) |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 113 | |
| 114 | #define CLIENT_2_HDR(a) ((MEMHDR *) (((char *) (a)) - RESERVE_SIZE)) |
| 115 | #define HDR_2_CLIENT(a) ((void *) (((char *) (a)) + RESERVE_SIZE)) |
| 116 | |
| 117 | |
| 118 | static unsigned int block=0; |
| 119 | static unsigned int xmlMemStopAtBlock = 0; |
| 120 | static void *xmlMemTraceBlockAt = NULL; |
| 121 | #ifdef MEM_LIST |
| 122 | static MEMHDR *memlist = NULL; |
| 123 | #endif |
| 124 | |
| 125 | static void debugmem_tag_error(void *addr); |
| 126 | #ifdef MEM_LIST |
| 127 | static void debugmem_list_add(MEMHDR *); |
| 128 | static void debugmem_list_delete(MEMHDR *); |
| 129 | #endif |
| 130 | #define Mem_Tag_Err(a) debugmem_tag_error(a); |
| 131 | |
| 132 | #ifndef TEST_POINT |
| 133 | #define TEST_POINT |
| 134 | #endif |
| 135 | |
| 136 | /** |
| 137 | * xmlMallocBreakpoint: |
| 138 | * |
| 139 | * Breakpoint to use in conjunction with xmlMemStopAtBlock. When the block |
| 140 | * number reaches the specified value this function is called. One need to add a breakpoint |
| 141 | * to it to get the context in which the given block is allocated. |
| 142 | */ |
| 143 | |
| 144 | void |
| 145 | xmlMallocBreakpoint(void) { |
| 146 | xmlGenericError(xmlGenericErrorContext, |
| 147 | "xmlMallocBreakpoint reached on block %d\n", xmlMemStopAtBlock); |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * xmlMallocLoc: |
| 152 | * @size: an int specifying the size in byte to allocate. |
| 153 | * @file: the file name or NULL |
| 154 | * @line: the line number |
| 155 | * |
| 156 | * a malloc() equivalent, with logging of the allocation info. |
| 157 | * |
| 158 | * Returns a pointer to the allocated area or NULL in case of lack of memory. |
| 159 | */ |
| 160 | |
| 161 | void * |
| 162 | xmlMallocLoc(size_t size, const char * file, int line) |
| 163 | { |
| 164 | MEMHDR *p; |
| 165 | void *ret; |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 166 | |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 167 | if (!xmlMemInitialized) xmlInitMemory(); |
| 168 | #ifdef DEBUG_MEMORY |
| 169 | xmlGenericError(xmlGenericErrorContext, |
| 170 | "Malloc(%d)\n",size); |
| 171 | #endif |
| 172 | |
| 173 | TEST_POINT |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 174 | |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 175 | p = (MEMHDR *) malloc(RESERVE_SIZE+size); |
| 176 | |
| 177 | if (!p) { |
| 178 | xmlGenericError(xmlGenericErrorContext, |
| 179 | "xmlMallocLoc : Out of free space\n"); |
| 180 | xmlMemoryDump(); |
| 181 | return(NULL); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 182 | } |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 183 | p->mh_tag = MEMTAG; |
| 184 | p->mh_size = size; |
| 185 | p->mh_type = MALLOC_TYPE; |
| 186 | p->mh_file = file; |
| 187 | p->mh_line = line; |
| 188 | xmlMutexLock(xmlMemMutex); |
| 189 | p->mh_number = ++block; |
| 190 | debugMemSize += size; |
| 191 | debugMemBlocks++; |
| 192 | if (debugMemSize > debugMaxMemSize) debugMaxMemSize = debugMemSize; |
| 193 | #ifdef MEM_LIST |
| 194 | debugmem_list_add(p); |
| 195 | #endif |
| 196 | xmlMutexUnlock(xmlMemMutex); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 197 | |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 198 | #ifdef DEBUG_MEMORY |
| 199 | xmlGenericError(xmlGenericErrorContext, |
| 200 | "Malloc(%d) Ok\n",size); |
| 201 | #endif |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 202 | |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 203 | if (xmlMemStopAtBlock == p->mh_number) xmlMallocBreakpoint(); |
| 204 | |
| 205 | ret = HDR_2_CLIENT(p); |
| 206 | |
| 207 | if (xmlMemTraceBlockAt == ret) { |
| 208 | xmlGenericError(xmlGenericErrorContext, |
Selim Gurun | df143a5 | 2012-03-05 14:35:53 -0800 | [diff] [blame] | 209 | "%p : Malloc(%lu) Ok\n", xmlMemTraceBlockAt, |
| 210 | (long unsigned)size); |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 211 | xmlMallocBreakpoint(); |
| 212 | } |
| 213 | |
| 214 | TEST_POINT |
| 215 | |
| 216 | return(ret); |
| 217 | } |
| 218 | |
| 219 | /** |
| 220 | * xmlMallocAtomicLoc: |
Xin Li | e742c3a | 2017-03-02 10:59:49 -0800 | [diff] [blame] | 221 | * @size: an unsigned int specifying the size in byte to allocate. |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 222 | * @file: the file name or NULL |
| 223 | * @line: the line number |
| 224 | * |
| 225 | * a malloc() equivalent, with logging of the allocation info. |
| 226 | * |
| 227 | * Returns a pointer to the allocated area or NULL in case of lack of memory. |
| 228 | */ |
| 229 | |
| 230 | void * |
| 231 | xmlMallocAtomicLoc(size_t size, const char * file, int line) |
| 232 | { |
| 233 | MEMHDR *p; |
| 234 | void *ret; |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 235 | |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 236 | if (!xmlMemInitialized) xmlInitMemory(); |
| 237 | #ifdef DEBUG_MEMORY |
| 238 | xmlGenericError(xmlGenericErrorContext, |
| 239 | "Malloc(%d)\n",size); |
| 240 | #endif |
| 241 | |
| 242 | TEST_POINT |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 243 | |
Xin Li | e742c3a | 2017-03-02 10:59:49 -0800 | [diff] [blame] | 244 | if (size > (MAX_SIZE_T - RESERVE_SIZE)) { |
| 245 | xmlGenericError(xmlGenericErrorContext, |
| 246 | "xmlMallocAtomicLoc : Unsigned overflow prevented\n"); |
| 247 | xmlMemoryDump(); |
| 248 | return(NULL); |
| 249 | } |
| 250 | |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 251 | p = (MEMHDR *) malloc(RESERVE_SIZE+size); |
| 252 | |
| 253 | if (!p) { |
| 254 | xmlGenericError(xmlGenericErrorContext, |
Xin Li | e742c3a | 2017-03-02 10:59:49 -0800 | [diff] [blame] | 255 | "xmlMallocAtomicLoc : Out of free space\n"); |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 256 | xmlMemoryDump(); |
| 257 | return(NULL); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 258 | } |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 259 | p->mh_tag = MEMTAG; |
| 260 | p->mh_size = size; |
| 261 | p->mh_type = MALLOC_ATOMIC_TYPE; |
| 262 | p->mh_file = file; |
| 263 | p->mh_line = line; |
| 264 | xmlMutexLock(xmlMemMutex); |
| 265 | p->mh_number = ++block; |
| 266 | debugMemSize += size; |
| 267 | debugMemBlocks++; |
| 268 | if (debugMemSize > debugMaxMemSize) debugMaxMemSize = debugMemSize; |
| 269 | #ifdef MEM_LIST |
| 270 | debugmem_list_add(p); |
| 271 | #endif |
| 272 | xmlMutexUnlock(xmlMemMutex); |
| 273 | |
| 274 | #ifdef DEBUG_MEMORY |
| 275 | xmlGenericError(xmlGenericErrorContext, |
| 276 | "Malloc(%d) Ok\n",size); |
| 277 | #endif |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 278 | |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 279 | if (xmlMemStopAtBlock == p->mh_number) xmlMallocBreakpoint(); |
| 280 | |
| 281 | ret = HDR_2_CLIENT(p); |
| 282 | |
| 283 | if (xmlMemTraceBlockAt == ret) { |
| 284 | xmlGenericError(xmlGenericErrorContext, |
Selim Gurun | df143a5 | 2012-03-05 14:35:53 -0800 | [diff] [blame] | 285 | "%p : Malloc(%lu) Ok\n", xmlMemTraceBlockAt, |
| 286 | (long unsigned)size); |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 287 | xmlMallocBreakpoint(); |
| 288 | } |
| 289 | |
| 290 | TEST_POINT |
| 291 | |
| 292 | return(ret); |
| 293 | } |
| 294 | /** |
| 295 | * xmlMemMalloc: |
| 296 | * @size: an int specifying the size in byte to allocate. |
| 297 | * |
| 298 | * a malloc() equivalent, with logging of the allocation info. |
| 299 | * |
| 300 | * Returns a pointer to the allocated area or NULL in case of lack of memory. |
| 301 | */ |
| 302 | |
| 303 | void * |
| 304 | xmlMemMalloc(size_t size) |
| 305 | { |
| 306 | return(xmlMallocLoc(size, "none", 0)); |
| 307 | } |
| 308 | |
| 309 | /** |
| 310 | * xmlReallocLoc: |
| 311 | * @ptr: the initial memory block pointer |
| 312 | * @size: an int specifying the size in byte to allocate. |
| 313 | * @file: the file name or NULL |
| 314 | * @line: the line number |
| 315 | * |
| 316 | * a realloc() equivalent, with logging of the allocation info. |
| 317 | * |
| 318 | * Returns a pointer to the allocated area or NULL in case of lack of memory. |
| 319 | */ |
| 320 | |
| 321 | void * |
| 322 | xmlReallocLoc(void *ptr,size_t size, const char * file, int line) |
| 323 | { |
Xin Li | e742c3a | 2017-03-02 10:59:49 -0800 | [diff] [blame] | 324 | MEMHDR *p, *tmp; |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 325 | unsigned long number; |
| 326 | #ifdef DEBUG_MEMORY |
| 327 | size_t oldsize; |
| 328 | #endif |
| 329 | |
| 330 | if (ptr == NULL) |
| 331 | return(xmlMallocLoc(size, file, line)); |
| 332 | |
| 333 | if (!xmlMemInitialized) xmlInitMemory(); |
| 334 | TEST_POINT |
| 335 | |
| 336 | p = CLIENT_2_HDR(ptr); |
| 337 | number = p->mh_number; |
| 338 | if (xmlMemStopAtBlock == number) xmlMallocBreakpoint(); |
| 339 | if (p->mh_tag != MEMTAG) { |
| 340 | Mem_Tag_Err(p); |
| 341 | goto error; |
| 342 | } |
| 343 | p->mh_tag = ~MEMTAG; |
| 344 | xmlMutexLock(xmlMemMutex); |
| 345 | debugMemSize -= p->mh_size; |
| 346 | debugMemBlocks--; |
| 347 | #ifdef DEBUG_MEMORY |
| 348 | oldsize = p->mh_size; |
| 349 | #endif |
| 350 | #ifdef MEM_LIST |
| 351 | debugmem_list_delete(p); |
| 352 | #endif |
| 353 | xmlMutexUnlock(xmlMemMutex); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 354 | |
Xin Li | e742c3a | 2017-03-02 10:59:49 -0800 | [diff] [blame] | 355 | tmp = (MEMHDR *) realloc(p,RESERVE_SIZE+size); |
| 356 | if (!tmp) { |
| 357 | free(p); |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 358 | goto error; |
| 359 | } |
Xin Li | e742c3a | 2017-03-02 10:59:49 -0800 | [diff] [blame] | 360 | p = tmp; |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 361 | if (xmlMemTraceBlockAt == ptr) { |
| 362 | xmlGenericError(xmlGenericErrorContext, |
Selim Gurun | df143a5 | 2012-03-05 14:35:53 -0800 | [diff] [blame] | 363 | "%p : Realloced(%lu -> %lu) Ok\n", |
| 364 | xmlMemTraceBlockAt, (long unsigned)p->mh_size, |
| 365 | (long unsigned)size); |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 366 | xmlMallocBreakpoint(); |
| 367 | } |
| 368 | p->mh_tag = MEMTAG; |
| 369 | p->mh_number = number; |
| 370 | p->mh_type = REALLOC_TYPE; |
| 371 | p->mh_size = size; |
| 372 | p->mh_file = file; |
| 373 | p->mh_line = line; |
| 374 | xmlMutexLock(xmlMemMutex); |
| 375 | debugMemSize += size; |
| 376 | debugMemBlocks++; |
| 377 | if (debugMemSize > debugMaxMemSize) debugMaxMemSize = debugMemSize; |
| 378 | #ifdef MEM_LIST |
| 379 | debugmem_list_add(p); |
| 380 | #endif |
| 381 | xmlMutexUnlock(xmlMemMutex); |
| 382 | |
| 383 | TEST_POINT |
| 384 | |
| 385 | #ifdef DEBUG_MEMORY |
| 386 | xmlGenericError(xmlGenericErrorContext, |
| 387 | "Realloced(%d to %d) Ok\n", oldsize, size); |
| 388 | #endif |
| 389 | return(HDR_2_CLIENT(p)); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 390 | |
| 391 | error: |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 392 | return(NULL); |
| 393 | } |
| 394 | |
| 395 | /** |
| 396 | * xmlMemRealloc: |
| 397 | * @ptr: the initial memory block pointer |
| 398 | * @size: an int specifying the size in byte to allocate. |
| 399 | * |
| 400 | * a realloc() equivalent, with logging of the allocation info. |
| 401 | * |
| 402 | * Returns a pointer to the allocated area or NULL in case of lack of memory. |
| 403 | */ |
| 404 | |
| 405 | void * |
| 406 | xmlMemRealloc(void *ptr,size_t size) { |
| 407 | return(xmlReallocLoc(ptr, size, "none", 0)); |
| 408 | } |
| 409 | |
| 410 | /** |
| 411 | * xmlMemFree: |
| 412 | * @ptr: the memory block pointer |
| 413 | * |
| 414 | * a free() equivalent, with error checking. |
| 415 | */ |
| 416 | void |
| 417 | xmlMemFree(void *ptr) |
| 418 | { |
| 419 | MEMHDR *p; |
| 420 | char *target; |
| 421 | #ifdef DEBUG_MEMORY |
| 422 | size_t size; |
| 423 | #endif |
| 424 | |
| 425 | if (ptr == NULL) |
| 426 | return; |
| 427 | |
| 428 | if (ptr == (void *) -1) { |
| 429 | xmlGenericError(xmlGenericErrorContext, |
| 430 | "trying to free pointer from freed area\n"); |
| 431 | goto error; |
| 432 | } |
| 433 | |
| 434 | if (xmlMemTraceBlockAt == ptr) { |
| 435 | xmlGenericError(xmlGenericErrorContext, |
| 436 | "%p : Freed()\n", xmlMemTraceBlockAt); |
| 437 | xmlMallocBreakpoint(); |
| 438 | } |
| 439 | |
| 440 | TEST_POINT |
| 441 | |
| 442 | target = (char *) ptr; |
| 443 | |
| 444 | p = CLIENT_2_HDR(ptr); |
| 445 | if (p->mh_tag != MEMTAG) { |
| 446 | Mem_Tag_Err(p); |
| 447 | goto error; |
| 448 | } |
| 449 | if (xmlMemStopAtBlock == p->mh_number) xmlMallocBreakpoint(); |
| 450 | p->mh_tag = ~MEMTAG; |
| 451 | memset(target, -1, p->mh_size); |
| 452 | xmlMutexLock(xmlMemMutex); |
| 453 | debugMemSize -= p->mh_size; |
| 454 | debugMemBlocks--; |
| 455 | #ifdef DEBUG_MEMORY |
| 456 | size = p->mh_size; |
| 457 | #endif |
| 458 | #ifdef MEM_LIST |
| 459 | debugmem_list_delete(p); |
| 460 | #endif |
| 461 | xmlMutexUnlock(xmlMemMutex); |
| 462 | |
| 463 | free(p); |
| 464 | |
| 465 | TEST_POINT |
| 466 | |
| 467 | #ifdef DEBUG_MEMORY |
| 468 | xmlGenericError(xmlGenericErrorContext, |
| 469 | "Freed(%d) Ok\n", size); |
| 470 | #endif |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 471 | |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 472 | return; |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 473 | |
| 474 | error: |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 475 | xmlGenericError(xmlGenericErrorContext, |
| 476 | "xmlMemFree(%lX) error\n", (unsigned long) ptr); |
| 477 | xmlMallocBreakpoint(); |
| 478 | return; |
| 479 | } |
| 480 | |
| 481 | /** |
| 482 | * xmlMemStrdupLoc: |
| 483 | * @str: the initial string pointer |
| 484 | * @file: the file name or NULL |
| 485 | * @line: the line number |
| 486 | * |
| 487 | * a strdup() equivalent, with logging of the allocation info. |
| 488 | * |
| 489 | * Returns a pointer to the new string or NULL if allocation error occurred. |
| 490 | */ |
| 491 | |
| 492 | char * |
| 493 | xmlMemStrdupLoc(const char *str, const char *file, int line) |
| 494 | { |
| 495 | char *s; |
| 496 | size_t size = strlen(str) + 1; |
| 497 | MEMHDR *p; |
| 498 | |
| 499 | if (!xmlMemInitialized) xmlInitMemory(); |
| 500 | TEST_POINT |
| 501 | |
| 502 | p = (MEMHDR *) malloc(RESERVE_SIZE+size); |
| 503 | if (!p) { |
| 504 | goto error; |
| 505 | } |
| 506 | p->mh_tag = MEMTAG; |
| 507 | p->mh_size = size; |
| 508 | p->mh_type = STRDUP_TYPE; |
| 509 | p->mh_file = file; |
| 510 | p->mh_line = line; |
| 511 | xmlMutexLock(xmlMemMutex); |
| 512 | p->mh_number = ++block; |
| 513 | debugMemSize += size; |
| 514 | debugMemBlocks++; |
| 515 | if (debugMemSize > debugMaxMemSize) debugMaxMemSize = debugMemSize; |
| 516 | #ifdef MEM_LIST |
| 517 | debugmem_list_add(p); |
| 518 | #endif |
| 519 | xmlMutexUnlock(xmlMemMutex); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 520 | |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 521 | s = (char *) HDR_2_CLIENT(p); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 522 | |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 523 | if (xmlMemStopAtBlock == p->mh_number) xmlMallocBreakpoint(); |
| 524 | |
Xin Li | e742c3a | 2017-03-02 10:59:49 -0800 | [diff] [blame] | 525 | strcpy(s,str); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 526 | |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 527 | TEST_POINT |
| 528 | |
| 529 | if (xmlMemTraceBlockAt == s) { |
| 530 | xmlGenericError(xmlGenericErrorContext, |
| 531 | "%p : Strdup() Ok\n", xmlMemTraceBlockAt); |
| 532 | xmlMallocBreakpoint(); |
| 533 | } |
| 534 | |
| 535 | return(s); |
| 536 | |
| 537 | error: |
| 538 | return(NULL); |
| 539 | } |
| 540 | |
| 541 | /** |
| 542 | * xmlMemoryStrdup: |
| 543 | * @str: the initial string pointer |
| 544 | * |
| 545 | * a strdup() equivalent, with logging of the allocation info. |
| 546 | * |
| 547 | * Returns a pointer to the new string or NULL if allocation error occurred. |
| 548 | */ |
| 549 | |
| 550 | char * |
| 551 | xmlMemoryStrdup(const char *str) { |
| 552 | return(xmlMemStrdupLoc(str, "none", 0)); |
| 553 | } |
| 554 | |
| 555 | /** |
| 556 | * xmlMemUsed: |
| 557 | * |
| 558 | * Provides the amount of memory currently allocated |
| 559 | * |
| 560 | * Returns an int representing the amount of memory allocated. |
| 561 | */ |
| 562 | |
| 563 | int |
| 564 | xmlMemUsed(void) { |
Xin Li | e742c3a | 2017-03-02 10:59:49 -0800 | [diff] [blame] | 565 | int res; |
| 566 | |
| 567 | xmlMutexLock(xmlMemMutex); |
| 568 | res = debugMemSize; |
| 569 | xmlMutexUnlock(xmlMemMutex); |
| 570 | return(res); |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 571 | } |
| 572 | |
| 573 | /** |
| 574 | * xmlMemBlocks: |
| 575 | * |
| 576 | * Provides the number of memory areas currently allocated |
| 577 | * |
| 578 | * Returns an int representing the number of blocks |
| 579 | */ |
| 580 | |
| 581 | int |
| 582 | xmlMemBlocks(void) { |
Xin Li | e742c3a | 2017-03-02 10:59:49 -0800 | [diff] [blame] | 583 | int res; |
| 584 | |
| 585 | xmlMutexLock(xmlMemMutex); |
| 586 | res = debugMemBlocks; |
| 587 | xmlMutexUnlock(xmlMemMutex); |
| 588 | return(res); |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 589 | } |
| 590 | |
| 591 | #ifdef MEM_LIST |
| 592 | /** |
| 593 | * xmlMemContentShow: |
| 594 | * @fp: a FILE descriptor used as the output file |
| 595 | * @p: a memory block header |
| 596 | * |
| 597 | * tries to show some content from the memory block |
| 598 | */ |
| 599 | |
| 600 | static void |
| 601 | xmlMemContentShow(FILE *fp, MEMHDR *p) |
| 602 | { |
Xin Li | e742c3a | 2017-03-02 10:59:49 -0800 | [diff] [blame] | 603 | int i,j,k,len; |
| 604 | const char *buf; |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 605 | |
| 606 | if (p == NULL) { |
| 607 | fprintf(fp, " NULL"); |
| 608 | return; |
| 609 | } |
Xin Li | e742c3a | 2017-03-02 10:59:49 -0800 | [diff] [blame] | 610 | len = p->mh_size; |
| 611 | buf = (const char *) HDR_2_CLIENT(p); |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 612 | |
| 613 | for (i = 0;i < len;i++) { |
| 614 | if (buf[i] == 0) break; |
| 615 | if (!isprint((unsigned char) buf[i])) break; |
| 616 | } |
| 617 | if ((i < 4) && ((buf[i] != 0) || (i == 0))) { |
| 618 | if (len >= 4) { |
| 619 | MEMHDR *q; |
| 620 | void *cur; |
| 621 | |
| 622 | for (j = 0;(j < len -3) && (j < 40);j += 4) { |
| 623 | cur = *((void **) &buf[j]); |
| 624 | q = CLIENT_2_HDR(cur); |
| 625 | p = memlist; |
| 626 | k = 0; |
| 627 | while (p != NULL) { |
| 628 | if (p == q) break; |
| 629 | p = p->mh_next; |
| 630 | if (k++ > 100) break; |
| 631 | } |
| 632 | if ((p != NULL) && (p == q)) { |
| 633 | fprintf(fp, " pointer to #%lu at index %d", |
| 634 | p->mh_number, j); |
| 635 | return; |
| 636 | } |
| 637 | } |
| 638 | } |
| 639 | } else if ((i == 0) && (buf[i] == 0)) { |
| 640 | fprintf(fp," null"); |
| 641 | } else { |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 642 | if (buf[i] == 0) fprintf(fp," \"%.25s\"", buf); |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 643 | else { |
| 644 | fprintf(fp," ["); |
| 645 | for (j = 0;j < i;j++) |
| 646 | fprintf(fp,"%c", buf[j]); |
| 647 | fprintf(fp,"]"); |
| 648 | } |
| 649 | } |
| 650 | } |
| 651 | #endif |
| 652 | |
| 653 | /** |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 654 | * xmlMemDisplayLast: |
| 655 | * @fp: a FILE descriptor used as the output file, if NULL, the result is |
| 656 | * written to the file .memorylist |
| 657 | * @nbBytes: the amount of memory to dump |
| 658 | * |
| 659 | * the last nbBytes of memory allocated and not freed, useful for dumping |
| 660 | * the memory left allocated between two places at runtime. |
| 661 | */ |
| 662 | |
| 663 | void |
| 664 | xmlMemDisplayLast(FILE *fp, long nbBytes) |
| 665 | { |
| 666 | #ifdef MEM_LIST |
| 667 | MEMHDR *p; |
| 668 | unsigned idx; |
| 669 | int nb = 0; |
| 670 | #endif |
| 671 | FILE *old_fp = fp; |
| 672 | |
| 673 | if (nbBytes <= 0) |
| 674 | return; |
| 675 | |
| 676 | if (fp == NULL) { |
| 677 | fp = fopen(".memorylist", "w"); |
| 678 | if (fp == NULL) |
| 679 | return; |
| 680 | } |
| 681 | |
| 682 | #ifdef MEM_LIST |
| 683 | fprintf(fp," Last %li MEMORY ALLOCATED : %lu, MAX was %lu\n", |
| 684 | nbBytes, debugMemSize, debugMaxMemSize); |
| 685 | fprintf(fp,"BLOCK NUMBER SIZE TYPE\n"); |
| 686 | idx = 0; |
| 687 | xmlMutexLock(xmlMemMutex); |
| 688 | p = memlist; |
| 689 | while ((p) && (nbBytes > 0)) { |
| 690 | fprintf(fp,"%-5u %6lu %6lu ",idx++,p->mh_number, |
| 691 | (unsigned long)p->mh_size); |
| 692 | switch (p->mh_type) { |
| 693 | case STRDUP_TYPE:fprintf(fp,"strdup() in ");break; |
| 694 | case MALLOC_TYPE:fprintf(fp,"malloc() in ");break; |
| 695 | case REALLOC_TYPE:fprintf(fp,"realloc() in ");break; |
| 696 | case MALLOC_ATOMIC_TYPE:fprintf(fp,"atomicmalloc() in ");break; |
| 697 | case REALLOC_ATOMIC_TYPE:fprintf(fp,"atomicrealloc() in ");break; |
| 698 | default: |
| 699 | fprintf(fp,"Unknown memory block, may be corrupted"); |
| 700 | xmlMutexUnlock(xmlMemMutex); |
| 701 | if (old_fp == NULL) |
| 702 | fclose(fp); |
| 703 | return; |
| 704 | } |
| 705 | if (p->mh_file != NULL) fprintf(fp,"%s(%u)", p->mh_file, p->mh_line); |
| 706 | if (p->mh_tag != MEMTAG) |
| 707 | fprintf(fp," INVALID"); |
| 708 | nb++; |
| 709 | if (nb < 100) |
| 710 | xmlMemContentShow(fp, p); |
| 711 | else |
| 712 | fprintf(fp," skip"); |
| 713 | |
| 714 | fprintf(fp,"\n"); |
| 715 | nbBytes -= (unsigned long)p->mh_size; |
| 716 | p = p->mh_next; |
| 717 | } |
| 718 | xmlMutexUnlock(xmlMemMutex); |
| 719 | #else |
| 720 | fprintf(fp,"Memory list not compiled (MEM_LIST not defined !)\n"); |
| 721 | #endif |
| 722 | if (old_fp == NULL) |
| 723 | fclose(fp); |
| 724 | } |
| 725 | |
| 726 | /** |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 727 | * xmlMemDisplay: |
| 728 | * @fp: a FILE descriptor used as the output file, if NULL, the result is |
| 729 | * written to the file .memorylist |
| 730 | * |
| 731 | * show in-extenso the memory blocks allocated |
| 732 | */ |
| 733 | |
| 734 | void |
| 735 | xmlMemDisplay(FILE *fp) |
| 736 | { |
| 737 | #ifdef MEM_LIST |
| 738 | MEMHDR *p; |
| 739 | unsigned idx; |
| 740 | int nb = 0; |
| 741 | #if defined(HAVE_LOCALTIME) && defined(HAVE_STRFTIME) |
| 742 | time_t currentTime; |
| 743 | char buf[500]; |
| 744 | struct tm * tstruct; |
| 745 | #endif |
| 746 | #endif |
| 747 | FILE *old_fp = fp; |
| 748 | |
| 749 | if (fp == NULL) { |
| 750 | fp = fopen(".memorylist", "w"); |
| 751 | if (fp == NULL) |
| 752 | return; |
| 753 | } |
| 754 | |
| 755 | #ifdef MEM_LIST |
| 756 | #if defined(HAVE_LOCALTIME) && defined(HAVE_STRFTIME) |
| 757 | currentTime = time(NULL); |
| 758 | tstruct = localtime(¤tTime); |
| 759 | strftime(buf, sizeof(buf) - 1, "%I:%M:%S %p", tstruct); |
| 760 | fprintf(fp," %s\n\n", buf); |
| 761 | #endif |
| 762 | |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 763 | |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 764 | fprintf(fp," MEMORY ALLOCATED : %lu, MAX was %lu\n", |
| 765 | debugMemSize, debugMaxMemSize); |
| 766 | fprintf(fp,"BLOCK NUMBER SIZE TYPE\n"); |
| 767 | idx = 0; |
| 768 | xmlMutexLock(xmlMemMutex); |
| 769 | p = memlist; |
| 770 | while (p) { |
| 771 | fprintf(fp,"%-5u %6lu %6lu ",idx++,p->mh_number, |
| 772 | (unsigned long)p->mh_size); |
| 773 | switch (p->mh_type) { |
| 774 | case STRDUP_TYPE:fprintf(fp,"strdup() in ");break; |
| 775 | case MALLOC_TYPE:fprintf(fp,"malloc() in ");break; |
| 776 | case REALLOC_TYPE:fprintf(fp,"realloc() in ");break; |
| 777 | case MALLOC_ATOMIC_TYPE:fprintf(fp,"atomicmalloc() in ");break; |
| 778 | case REALLOC_ATOMIC_TYPE:fprintf(fp,"atomicrealloc() in ");break; |
| 779 | default: |
| 780 | fprintf(fp,"Unknown memory block, may be corrupted"); |
| 781 | xmlMutexUnlock(xmlMemMutex); |
| 782 | if (old_fp == NULL) |
| 783 | fclose(fp); |
| 784 | return; |
| 785 | } |
| 786 | if (p->mh_file != NULL) fprintf(fp,"%s(%u)", p->mh_file, p->mh_line); |
| 787 | if (p->mh_tag != MEMTAG) |
| 788 | fprintf(fp," INVALID"); |
| 789 | nb++; |
| 790 | if (nb < 100) |
| 791 | xmlMemContentShow(fp, p); |
| 792 | else |
| 793 | fprintf(fp," skip"); |
| 794 | |
| 795 | fprintf(fp,"\n"); |
| 796 | p = p->mh_next; |
| 797 | } |
| 798 | xmlMutexUnlock(xmlMemMutex); |
| 799 | #else |
| 800 | fprintf(fp,"Memory list not compiled (MEM_LIST not defined !)\n"); |
| 801 | #endif |
| 802 | if (old_fp == NULL) |
| 803 | fclose(fp); |
| 804 | } |
| 805 | |
| 806 | #ifdef MEM_LIST |
| 807 | |
| 808 | static void debugmem_list_add(MEMHDR *p) |
| 809 | { |
| 810 | p->mh_next = memlist; |
| 811 | p->mh_prev = NULL; |
| 812 | if (memlist) memlist->mh_prev = p; |
| 813 | memlist = p; |
| 814 | #ifdef MEM_LIST_DEBUG |
| 815 | if (stderr) |
| 816 | Mem_Display(stderr); |
| 817 | #endif |
| 818 | } |
| 819 | |
| 820 | static void debugmem_list_delete(MEMHDR *p) |
| 821 | { |
| 822 | if (p->mh_next) |
| 823 | p->mh_next->mh_prev = p->mh_prev; |
| 824 | if (p->mh_prev) |
| 825 | p->mh_prev->mh_next = p->mh_next; |
| 826 | else memlist = p->mh_next; |
| 827 | #ifdef MEM_LIST_DEBUG |
| 828 | if (stderr) |
| 829 | Mem_Display(stderr); |
| 830 | #endif |
| 831 | } |
| 832 | |
| 833 | #endif |
| 834 | |
| 835 | /* |
| 836 | * debugmem_tag_error: |
| 837 | * |
| 838 | * internal error function. |
| 839 | */ |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 840 | |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 841 | static void debugmem_tag_error(void *p) |
| 842 | { |
| 843 | xmlGenericError(xmlGenericErrorContext, |
| 844 | "Memory tag error occurs :%p \n\t bye\n", p); |
| 845 | #ifdef MEM_LIST |
| 846 | if (stderr) |
| 847 | xmlMemDisplay(stderr); |
| 848 | #endif |
| 849 | } |
| 850 | |
| 851 | #ifdef MEM_LIST |
| 852 | static FILE *xmlMemoryDumpFile = NULL; |
| 853 | #endif |
| 854 | |
| 855 | /** |
| 856 | * xmlMemShow: |
| 857 | * @fp: a FILE descriptor used as the output file |
| 858 | * @nr: number of entries to dump |
| 859 | * |
| 860 | * show a show display of the memory allocated, and dump |
| 861 | * the @nr last allocated areas which were not freed |
| 862 | */ |
| 863 | |
| 864 | void |
| 865 | xmlMemShow(FILE *fp, int nr ATTRIBUTE_UNUSED) |
| 866 | { |
| 867 | #ifdef MEM_LIST |
| 868 | MEMHDR *p; |
| 869 | #endif |
| 870 | |
| 871 | if (fp != NULL) |
| 872 | fprintf(fp," MEMORY ALLOCATED : %lu, MAX was %lu\n", |
| 873 | debugMemSize, debugMaxMemSize); |
| 874 | #ifdef MEM_LIST |
| 875 | xmlMutexLock(xmlMemMutex); |
| 876 | if (nr > 0) { |
| 877 | fprintf(fp,"NUMBER SIZE TYPE WHERE\n"); |
| 878 | p = memlist; |
| 879 | while ((p) && nr > 0) { |
| 880 | fprintf(fp,"%6lu %6lu ",p->mh_number,(unsigned long)p->mh_size); |
| 881 | switch (p->mh_type) { |
| 882 | case STRDUP_TYPE:fprintf(fp,"strdup() in ");break; |
| 883 | case MALLOC_TYPE:fprintf(fp,"malloc() in ");break; |
| 884 | case MALLOC_ATOMIC_TYPE:fprintf(fp,"atomicmalloc() in ");break; |
| 885 | case REALLOC_TYPE:fprintf(fp,"realloc() in ");break; |
| 886 | case REALLOC_ATOMIC_TYPE:fprintf(fp,"atomicrealloc() in ");break; |
| 887 | default:fprintf(fp," ??? in ");break; |
| 888 | } |
| 889 | if (p->mh_file != NULL) |
| 890 | fprintf(fp,"%s(%u)", p->mh_file, p->mh_line); |
| 891 | if (p->mh_tag != MEMTAG) |
| 892 | fprintf(fp," INVALID"); |
| 893 | xmlMemContentShow(fp, p); |
| 894 | fprintf(fp,"\n"); |
| 895 | nr--; |
| 896 | p = p->mh_next; |
| 897 | } |
| 898 | } |
| 899 | xmlMutexUnlock(xmlMemMutex); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 900 | #endif /* MEM_LIST */ |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 901 | } |
| 902 | |
| 903 | /** |
| 904 | * xmlMemoryDump: |
| 905 | * |
| 906 | * Dump in-extenso the memory blocks allocated to the file .memorylist |
| 907 | */ |
| 908 | |
| 909 | void |
| 910 | xmlMemoryDump(void) |
| 911 | { |
| 912 | #ifdef MEM_LIST |
| 913 | FILE *dump; |
| 914 | |
| 915 | if (debugMaxMemSize == 0) |
| 916 | return; |
| 917 | dump = fopen(".memdump", "w"); |
| 918 | if (dump == NULL) |
| 919 | xmlMemoryDumpFile = stderr; |
| 920 | else xmlMemoryDumpFile = dump; |
| 921 | |
| 922 | xmlMemDisplay(xmlMemoryDumpFile); |
| 923 | |
| 924 | if (dump != NULL) fclose(dump); |
| 925 | #endif /* MEM_LIST */ |
| 926 | } |
| 927 | |
| 928 | |
| 929 | /**************************************************************** |
| 930 | * * |
| 931 | * Initialization Routines * |
| 932 | * * |
| 933 | ****************************************************************/ |
| 934 | |
| 935 | /** |
| 936 | * xmlInitMemory: |
| 937 | * |
| 938 | * Initialize the memory layer. |
| 939 | * |
| 940 | * Returns 0 on success |
| 941 | */ |
| 942 | int |
| 943 | xmlInitMemory(void) |
| 944 | { |
| 945 | #ifdef HAVE_STDLIB_H |
| 946 | char *breakpoint; |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 947 | #endif |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 948 | #ifdef DEBUG_MEMORY |
| 949 | xmlGenericError(xmlGenericErrorContext, |
| 950 | "xmlInitMemory()\n"); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 951 | #endif |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 952 | /* |
| 953 | This is really not good code (see Bug 130419). Suggestions for |
| 954 | improvement will be welcome! |
| 955 | */ |
| 956 | if (xmlMemInitialized) return(-1); |
| 957 | xmlMemInitialized = 1; |
| 958 | xmlMemMutex = xmlNewMutex(); |
| 959 | |
| 960 | #ifdef HAVE_STDLIB_H |
| 961 | breakpoint = getenv("XML_MEM_BREAKPOINT"); |
| 962 | if (breakpoint != NULL) { |
| 963 | sscanf(breakpoint, "%ud", &xmlMemStopAtBlock); |
| 964 | } |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 965 | #endif |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 966 | #ifdef HAVE_STDLIB_H |
| 967 | breakpoint = getenv("XML_MEM_TRACE"); |
| 968 | if (breakpoint != NULL) { |
| 969 | sscanf(breakpoint, "%p", &xmlMemTraceBlockAt); |
| 970 | } |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 971 | #endif |
| 972 | |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 973 | #ifdef DEBUG_MEMORY |
| 974 | xmlGenericError(xmlGenericErrorContext, |
| 975 | "xmlInitMemory() Ok\n"); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 976 | #endif |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 977 | return(0); |
| 978 | } |
| 979 | |
| 980 | /** |
| 981 | * xmlCleanupMemory: |
| 982 | * |
| 983 | * Free up all the memory allocated by the library for its own |
| 984 | * use. This should not be called by user level code. |
| 985 | */ |
| 986 | void |
| 987 | xmlCleanupMemory(void) { |
| 988 | #ifdef DEBUG_MEMORY |
| 989 | xmlGenericError(xmlGenericErrorContext, |
| 990 | "xmlCleanupMemory()\n"); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 991 | #endif |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 992 | if (xmlMemInitialized == 0) |
| 993 | return; |
| 994 | |
| 995 | xmlFreeMutex(xmlMemMutex); |
| 996 | xmlMemMutex = NULL; |
| 997 | xmlMemInitialized = 0; |
| 998 | #ifdef DEBUG_MEMORY |
| 999 | xmlGenericError(xmlGenericErrorContext, |
| 1000 | "xmlCleanupMemory() Ok\n"); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 1001 | #endif |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 1002 | } |
| 1003 | |
| 1004 | /** |
| 1005 | * xmlMemSetup: |
| 1006 | * @freeFunc: the free() function to use |
| 1007 | * @mallocFunc: the malloc() function to use |
| 1008 | * @reallocFunc: the realloc() function to use |
| 1009 | * @strdupFunc: the strdup() function to use |
| 1010 | * |
| 1011 | * Override the default memory access functions with a new set |
| 1012 | * This has to be called before any other libxml routines ! |
| 1013 | * |
| 1014 | * Should this be blocked if there was already some allocations |
| 1015 | * done ? |
| 1016 | * |
| 1017 | * Returns 0 on success |
| 1018 | */ |
| 1019 | int |
| 1020 | xmlMemSetup(xmlFreeFunc freeFunc, xmlMallocFunc mallocFunc, |
| 1021 | xmlReallocFunc reallocFunc, xmlStrdupFunc strdupFunc) { |
| 1022 | #ifdef DEBUG_MEMORY |
| 1023 | xmlGenericError(xmlGenericErrorContext, |
| 1024 | "xmlMemSetup()\n"); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 1025 | #endif |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 1026 | if (freeFunc == NULL) |
| 1027 | return(-1); |
| 1028 | if (mallocFunc == NULL) |
| 1029 | return(-1); |
| 1030 | if (reallocFunc == NULL) |
| 1031 | return(-1); |
| 1032 | if (strdupFunc == NULL) |
| 1033 | return(-1); |
| 1034 | xmlFree = freeFunc; |
| 1035 | xmlMalloc = mallocFunc; |
| 1036 | xmlMallocAtomic = mallocFunc; |
| 1037 | xmlRealloc = reallocFunc; |
| 1038 | xmlMemStrdup = strdupFunc; |
| 1039 | #ifdef DEBUG_MEMORY |
| 1040 | xmlGenericError(xmlGenericErrorContext, |
| 1041 | "xmlMemSetup() Ok\n"); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 1042 | #endif |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 1043 | return(0); |
| 1044 | } |
| 1045 | |
| 1046 | /** |
| 1047 | * xmlMemGet: |
| 1048 | * @freeFunc: place to save the free() function in use |
| 1049 | * @mallocFunc: place to save the malloc() function in use |
| 1050 | * @reallocFunc: place to save the realloc() function in use |
| 1051 | * @strdupFunc: place to save the strdup() function in use |
| 1052 | * |
| 1053 | * Provides the memory access functions set currently in use |
| 1054 | * |
| 1055 | * Returns 0 on success |
| 1056 | */ |
| 1057 | int |
| 1058 | xmlMemGet(xmlFreeFunc *freeFunc, xmlMallocFunc *mallocFunc, |
| 1059 | xmlReallocFunc *reallocFunc, xmlStrdupFunc *strdupFunc) { |
| 1060 | if (freeFunc != NULL) *freeFunc = xmlFree; |
| 1061 | if (mallocFunc != NULL) *mallocFunc = xmlMalloc; |
| 1062 | if (reallocFunc != NULL) *reallocFunc = xmlRealloc; |
| 1063 | if (strdupFunc != NULL) *strdupFunc = xmlMemStrdup; |
| 1064 | return(0); |
| 1065 | } |
| 1066 | |
| 1067 | /** |
| 1068 | * xmlGcMemSetup: |
| 1069 | * @freeFunc: the free() function to use |
| 1070 | * @mallocFunc: the malloc() function to use |
| 1071 | * @mallocAtomicFunc: the malloc() function to use for atomic allocations |
| 1072 | * @reallocFunc: the realloc() function to use |
| 1073 | * @strdupFunc: the strdup() function to use |
| 1074 | * |
| 1075 | * Override the default memory access functions with a new set |
| 1076 | * This has to be called before any other libxml routines ! |
| 1077 | * The mallocAtomicFunc is specialized for atomic block |
| 1078 | * allocations (i.e. of areas useful for garbage collected memory allocators |
| 1079 | * |
| 1080 | * Should this be blocked if there was already some allocations |
| 1081 | * done ? |
| 1082 | * |
| 1083 | * Returns 0 on success |
| 1084 | */ |
| 1085 | int |
| 1086 | xmlGcMemSetup(xmlFreeFunc freeFunc, xmlMallocFunc mallocFunc, |
| 1087 | xmlMallocFunc mallocAtomicFunc, xmlReallocFunc reallocFunc, |
| 1088 | xmlStrdupFunc strdupFunc) { |
| 1089 | #ifdef DEBUG_MEMORY |
| 1090 | xmlGenericError(xmlGenericErrorContext, |
| 1091 | "xmlGcMemSetup()\n"); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 1092 | #endif |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 1093 | if (freeFunc == NULL) |
| 1094 | return(-1); |
| 1095 | if (mallocFunc == NULL) |
| 1096 | return(-1); |
| 1097 | if (mallocAtomicFunc == NULL) |
| 1098 | return(-1); |
| 1099 | if (reallocFunc == NULL) |
| 1100 | return(-1); |
| 1101 | if (strdupFunc == NULL) |
| 1102 | return(-1); |
| 1103 | xmlFree = freeFunc; |
| 1104 | xmlMalloc = mallocFunc; |
| 1105 | xmlMallocAtomic = mallocAtomicFunc; |
| 1106 | xmlRealloc = reallocFunc; |
| 1107 | xmlMemStrdup = strdupFunc; |
| 1108 | #ifdef DEBUG_MEMORY |
| 1109 | xmlGenericError(xmlGenericErrorContext, |
| 1110 | "xmlGcMemSetup() Ok\n"); |
Patrick Scott | 60a4c35 | 2009-07-09 09:30:54 -0400 | [diff] [blame] | 1111 | #endif |
The Android Open Source Project | ab4e2e9 | 2009-03-03 19:30:06 -0800 | [diff] [blame] | 1112 | return(0); |
| 1113 | } |
| 1114 | |
| 1115 | /** |
| 1116 | * xmlGcMemGet: |
| 1117 | * @freeFunc: place to save the free() function in use |
| 1118 | * @mallocFunc: place to save the malloc() function in use |
| 1119 | * @mallocAtomicFunc: place to save the atomic malloc() function in use |
| 1120 | * @reallocFunc: place to save the realloc() function in use |
| 1121 | * @strdupFunc: place to save the strdup() function in use |
| 1122 | * |
| 1123 | * Provides the memory access functions set currently in use |
| 1124 | * The mallocAtomicFunc is specialized for atomic block |
| 1125 | * allocations (i.e. of areas useful for garbage collected memory allocators |
| 1126 | * |
| 1127 | * Returns 0 on success |
| 1128 | */ |
| 1129 | int |
| 1130 | xmlGcMemGet(xmlFreeFunc *freeFunc, xmlMallocFunc *mallocFunc, |
| 1131 | xmlMallocFunc *mallocAtomicFunc, xmlReallocFunc *reallocFunc, |
| 1132 | xmlStrdupFunc *strdupFunc) { |
| 1133 | if (freeFunc != NULL) *freeFunc = xmlFree; |
| 1134 | if (mallocFunc != NULL) *mallocFunc = xmlMalloc; |
| 1135 | if (mallocAtomicFunc != NULL) *mallocAtomicFunc = xmlMallocAtomic; |
| 1136 | if (reallocFunc != NULL) *reallocFunc = xmlRealloc; |
| 1137 | if (strdupFunc != NULL) *strdupFunc = xmlMemStrdup; |
| 1138 | return(0); |
| 1139 | } |
| 1140 | |
| 1141 | #define bottom_xmlmemory |
| 1142 | #include "elfgcchack.h" |