1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 7 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 2006-2017 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Andrey Hristov <andrey@php.net> |
16 | Ulf Wendel <uw@php.net> |
17 | Georg Richter <georg@php.net> |
18 +----------------------------------------------------------------------+
19 */
20
21 /* $Id: mysqlnd_debug.c 309303 2011-03-16 12:42:59Z andrey $ */
22 #include "php.h"
23 #include "mysqlnd.h"
24 #include "mysqlnd_priv.h"
25 #include "mysqlnd_debug.h"
26 #include "mysqlnd_wireprotocol.h"
27 #include "mysqlnd_statistics.h"
28
29
30 static const char mysqlnd_emalloc_name[] = "_mysqlnd_emalloc";
31 static const char mysqlnd_pemalloc_name[] = "_mysqlnd_pemalloc";
32 static const char mysqlnd_ecalloc_name[] = "_mysqlnd_ecalloc";
33 static const char mysqlnd_pecalloc_name[] = "_mysqlnd_pecalloc";
34 static const char mysqlnd_erealloc_name[] = "_mysqlnd_erealloc";
35 static const char mysqlnd_perealloc_name[] = "_mysqlnd_perealloc";
36 static const char mysqlnd_efree_name[] = "_mysqlnd_efree";
37 static const char mysqlnd_pefree_name[] = "_mysqlnd_pefree";
38 static const char mysqlnd_malloc_name[] = "_mysqlnd_malloc";
39 static const char mysqlnd_calloc_name[] = "_mysqlnd_calloc";
40 static const char mysqlnd_realloc_name[] = "_mysqlnd_realloc";
41 static const char mysqlnd_free_name[] = "_mysqlnd_free";
42 static const char mysqlnd_pestrndup_name[] = "_mysqlnd_pestrndup";
43 static const char mysqlnd_pestrdup_name[] = "_mysqlnd_pestrdup";
44
45 PHPAPI const char * mysqlnd_debug_std_no_trace_funcs[] =
46 {
47 mysqlnd_emalloc_name,
48 mysqlnd_ecalloc_name,
49 mysqlnd_efree_name,
50 mysqlnd_erealloc_name,
51 mysqlnd_pemalloc_name,
52 mysqlnd_pecalloc_name,
53 mysqlnd_pefree_name,
54 mysqlnd_perealloc_name,
55 mysqlnd_malloc_name,
56 mysqlnd_calloc_name,
57 mysqlnd_realloc_name,
58 mysqlnd_free_name,
59 mysqlnd_pestrndup_name,
60 mysqlnd_read_header_name,
61 mysqlnd_read_body_name,
62 NULL /* must be always last */
63 };
64
65
66 #if ZEND_DEBUG
67 #else
68 #define __zend_orig_filename "/unknown/unknown"
69 #define __zend_orig_lineno 0
70 #endif
71
72 #define REAL_SIZE(s) (collect_memory_statistics? (s) + sizeof(size_t) : (s))
73 #define REAL_PTR(p) (collect_memory_statistics && (p)? (((char *)(p)) - sizeof(size_t)) : (p))
74 #define FAKE_PTR(p) (collect_memory_statistics && (p)? (((char *)(p)) + sizeof(size_t)) : (p))
75
76 /* {{{ _mysqlnd_emalloc */
_mysqlnd_emalloc(size_t size MYSQLND_MEM_D)77 void * _mysqlnd_emalloc(size_t size MYSQLND_MEM_D)
78 {
79 void *ret;
80 zend_bool collect_memory_statistics = MYSQLND_G(collect_memory_statistics);
81 #if PHP_DEBUG
82 zend_long * threshold = &MYSQLND_G(debug_emalloc_fail_threshold);
83 #endif
84 TRACE_ALLOC_ENTER(mysqlnd_emalloc_name);
85
86 #if PHP_DEBUG
87 {
88 char * fn = strrchr(__zend_orig_filename, PHP_DIR_SEPARATOR);
89 TRACE_ALLOC_INF_FMT("file=%-15s line=%4d", fn? fn + 1:__zend_orig_filename, __zend_orig_lineno);
90 }
91 #endif
92
93 #if PHP_DEBUG
94 /* -1 is also "true" */
95 if (*threshold) {
96 #endif
97 ret = _emalloc(REAL_SIZE(size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
98 #if PHP_DEBUG
99 --*threshold;
100 } else if (*threshold == 0) {
101 ret = NULL;
102 }
103 #endif
104
105 TRACE_ALLOC_INF_FMT("size=%lu ptr=%p", size, ret);
106
107 if (ret && collect_memory_statistics) {
108 *(size_t *) ret = size;
109 MYSQLND_INC_GLOBAL_STATISTIC_W_VALUE2(STAT_MEM_EMALLOC_COUNT, 1, STAT_MEM_EMALLOC_AMOUNT, size);
110 }
111 TRACE_ALLOC_RETURN(FAKE_PTR(ret));
112 }
113 /* }}} */
114
115
116 /* {{{ _mysqlnd_pemalloc */
_mysqlnd_pemalloc(size_t size,zend_bool persistent MYSQLND_MEM_D)117 void * _mysqlnd_pemalloc(size_t size, zend_bool persistent MYSQLND_MEM_D)
118 {
119 void *ret;
120 zend_bool collect_memory_statistics = MYSQLND_G(collect_memory_statistics);
121 #if PHP_DEBUG
122 zend_long * threshold = persistent? &MYSQLND_G(debug_malloc_fail_threshold):&MYSQLND_G(debug_emalloc_fail_threshold);
123 #endif
124 TRACE_ALLOC_ENTER(mysqlnd_pemalloc_name);
125
126 #if PHP_DEBUG
127 {
128 char * fn = strrchr(__zend_orig_filename, PHP_DIR_SEPARATOR);
129 TRACE_ALLOC_INF_FMT("file=%-15s line=%4d", fn? fn + 1:__zend_orig_filename, __zend_orig_lineno);
130 }
131 #endif
132
133 #if PHP_DEBUG
134 /* -1 is also "true" */
135 if (*threshold) {
136 #endif
137 ret = (persistent) ? __zend_malloc(REAL_SIZE(size)) : _emalloc(REAL_SIZE(size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
138 #if PHP_DEBUG
139 --*threshold;
140 } else if (*threshold == 0) {
141 ret = NULL;
142 }
143 #endif
144
145 TRACE_ALLOC_INF_FMT("size=%lu ptr=%p persistent=%u", size, ret, persistent);
146
147 if (ret && collect_memory_statistics) {
148 enum mysqlnd_collected_stats s1 = persistent? STAT_MEM_MALLOC_COUNT:STAT_MEM_EMALLOC_COUNT;
149 enum mysqlnd_collected_stats s2 = persistent? STAT_MEM_MALLOC_AMOUNT:STAT_MEM_EMALLOC_AMOUNT;
150 *(size_t *) ret = size;
151 MYSQLND_INC_GLOBAL_STATISTIC_W_VALUE2(s1, 1, s2, size);
152 }
153
154 TRACE_ALLOC_RETURN(FAKE_PTR(ret));
155 }
156 /* }}} */
157
158
159 /* {{{ _mysqlnd_ecalloc */
_mysqlnd_ecalloc(unsigned int nmemb,size_t size MYSQLND_MEM_D)160 void * _mysqlnd_ecalloc(unsigned int nmemb, size_t size MYSQLND_MEM_D)
161 {
162 void *ret;
163 zend_bool collect_memory_statistics = MYSQLND_G(collect_memory_statistics);
164 #if PHP_DEBUG
165 zend_long * threshold = &MYSQLND_G(debug_ecalloc_fail_threshold);
166 #endif
167 TRACE_ALLOC_ENTER(mysqlnd_ecalloc_name);
168
169 #if PHP_DEBUG
170 {
171 char * fn = strrchr(__zend_orig_filename, PHP_DIR_SEPARATOR);
172 TRACE_ALLOC_INF_FMT("file=%-15s line=%4d", fn? fn + 1:__zend_orig_filename, __zend_orig_lineno);
173 }
174 #endif
175 TRACE_ALLOC_INF_FMT("before: %lu", zend_memory_usage(FALSE));
176
177 #if PHP_DEBUG
178 /* -1 is also "true" */
179 if (*threshold) {
180 #endif
181 ret = _ecalloc(nmemb, REAL_SIZE(size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
182 #if PHP_DEBUG
183 --*threshold;
184 } else if (*threshold == 0) {
185 ret = NULL;
186 }
187 #endif
188
189 TRACE_ALLOC_INF_FMT("after : %lu", zend_memory_usage(FALSE));
190 TRACE_ALLOC_INF_FMT("size=%lu ptr=%p", size, ret);
191 if (ret && collect_memory_statistics) {
192 *(size_t *) ret = size;
193 MYSQLND_INC_GLOBAL_STATISTIC_W_VALUE2(STAT_MEM_ECALLOC_COUNT, 1, STAT_MEM_ECALLOC_AMOUNT, size);
194 }
195 TRACE_ALLOC_RETURN(FAKE_PTR(ret));
196 }
197 /* }}} */
198
199
200 /* {{{ _mysqlnd_pecalloc */
_mysqlnd_pecalloc(unsigned int nmemb,size_t size,zend_bool persistent MYSQLND_MEM_D)201 void * _mysqlnd_pecalloc(unsigned int nmemb, size_t size, zend_bool persistent MYSQLND_MEM_D)
202 {
203 void *ret;
204 zend_bool collect_memory_statistics = MYSQLND_G(collect_memory_statistics);
205 #if PHP_DEBUG
206 zend_long * threshold = persistent? &MYSQLND_G(debug_calloc_fail_threshold):&MYSQLND_G(debug_ecalloc_fail_threshold);
207 #endif
208 TRACE_ALLOC_ENTER(mysqlnd_pecalloc_name);
209 #if PHP_DEBUG
210 {
211 char * fn = strrchr(__zend_orig_filename, PHP_DIR_SEPARATOR);
212 TRACE_ALLOC_INF_FMT("file=%-15s line=%4d", fn? fn + 1:__zend_orig_filename, __zend_orig_lineno);
213 }
214 #endif
215
216 #if PHP_DEBUG
217 /* -1 is also "true" */
218 if (*threshold) {
219 #endif
220 ret = (persistent) ? __zend_calloc(nmemb, REAL_SIZE(size)) : _ecalloc(nmemb, REAL_SIZE(size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
221 #if PHP_DEBUG
222 --*threshold;
223 } else if (*threshold == 0) {
224 ret = NULL;
225 }
226 #endif
227
228 TRACE_ALLOC_INF_FMT("size=%lu ptr=%p", size, ret);
229
230 if (ret && collect_memory_statistics) {
231 enum mysqlnd_collected_stats s1 = persistent? STAT_MEM_CALLOC_COUNT:STAT_MEM_ECALLOC_COUNT;
232 enum mysqlnd_collected_stats s2 = persistent? STAT_MEM_CALLOC_AMOUNT:STAT_MEM_ECALLOC_AMOUNT;
233 *(size_t *) ret = size;
234 MYSQLND_INC_GLOBAL_STATISTIC_W_VALUE2(s1, 1, s2, size);
235 }
236
237 TRACE_ALLOC_RETURN(FAKE_PTR(ret));
238 }
239 /* }}} */
240
241
242 /* {{{ _mysqlnd_erealloc */
_mysqlnd_erealloc(void * ptr,size_t new_size MYSQLND_MEM_D)243 void * _mysqlnd_erealloc(void *ptr, size_t new_size MYSQLND_MEM_D)
244 {
245 void *ret;
246 zend_bool collect_memory_statistics = MYSQLND_G(collect_memory_statistics);
247 size_t old_size = collect_memory_statistics && ptr? *(size_t *) (((char*)ptr) - sizeof(size_t)) : 0;
248 #if PHP_DEBUG
249 zend_long * threshold = &MYSQLND_G(debug_erealloc_fail_threshold);
250 #endif
251 TRACE_ALLOC_ENTER(mysqlnd_erealloc_name);
252
253 #if PHP_DEBUG
254 {
255 char * fn = strrchr(__zend_orig_filename, PHP_DIR_SEPARATOR);
256 TRACE_ALLOC_INF_FMT("file=%-15s line=%4d", fn? fn + 1:__zend_orig_filename, __zend_orig_lineno);
257 }
258 #endif
259 TRACE_ALLOC_INF_FMT("ptr=%p old_size=%lu, new_size=%lu", ptr, old_size, new_size);
260
261 #if PHP_DEBUG
262 /* -1 is also "true" */
263 if (*threshold) {
264 #endif
265 ret = _erealloc(REAL_PTR(ptr), REAL_SIZE(new_size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
266 #if PHP_DEBUG
267 --*threshold;
268 } else if (*threshold == 0) {
269 ret = NULL;
270 }
271 #endif
272
273 TRACE_ALLOC_INF_FMT("new_ptr=%p", (char*)ret);
274 if (ret && collect_memory_statistics) {
275 *(size_t *) ret = new_size;
276 MYSQLND_INC_GLOBAL_STATISTIC_W_VALUE2(STAT_MEM_EREALLOC_COUNT, 1, STAT_MEM_EREALLOC_AMOUNT, new_size);
277 }
278 TRACE_ALLOC_RETURN(FAKE_PTR(ret));
279 }
280 /* }}} */
281
282
283 /* {{{ _mysqlnd_perealloc */
_mysqlnd_perealloc(void * ptr,size_t new_size,zend_bool persistent MYSQLND_MEM_D)284 void * _mysqlnd_perealloc(void *ptr, size_t new_size, zend_bool persistent MYSQLND_MEM_D)
285 {
286 void *ret;
287 zend_bool collect_memory_statistics = MYSQLND_G(collect_memory_statistics);
288 size_t old_size = collect_memory_statistics && ptr? *(size_t *) (((char*)ptr) - sizeof(size_t)) : 0;
289 #if PHP_DEBUG
290 zend_long * threshold = persistent? &MYSQLND_G(debug_realloc_fail_threshold):&MYSQLND_G(debug_erealloc_fail_threshold);
291 #endif
292 TRACE_ALLOC_ENTER(mysqlnd_perealloc_name);
293
294 #if PHP_DEBUG
295 {
296 char * fn = strrchr(__zend_orig_filename, PHP_DIR_SEPARATOR);
297 TRACE_ALLOC_INF_FMT("file=%-15s line=%4d", fn? fn + 1:__zend_orig_filename, __zend_orig_lineno);
298 }
299 #endif
300 TRACE_ALLOC_INF_FMT("ptr=%p old_size=%lu new_size=%lu persistent=%u", ptr, old_size, new_size, persistent);
301
302 #if PHP_DEBUG
303 /* -1 is also "true" */
304 if (*threshold) {
305 #endif
306 ret = perealloc(REAL_PTR(ptr), REAL_SIZE(new_size), persistent);
307 #if PHP_DEBUG
308 --*threshold;
309 } else if (*threshold == 0) {
310 ret = NULL;
311 }
312 #endif
313
314 TRACE_ALLOC_INF_FMT("new_ptr=%p", (char*)ret);
315
316 if (ret && collect_memory_statistics) {
317 enum mysqlnd_collected_stats s1 = persistent? STAT_MEM_REALLOC_COUNT:STAT_MEM_EREALLOC_COUNT;
318 enum mysqlnd_collected_stats s2 = persistent? STAT_MEM_REALLOC_AMOUNT:STAT_MEM_EREALLOC_AMOUNT;
319 *(size_t *) ret = new_size;
320 MYSQLND_INC_GLOBAL_STATISTIC_W_VALUE2(s1, 1, s2, new_size);
321 }
322 TRACE_ALLOC_RETURN(FAKE_PTR(ret));
323 }
324 /* }}} */
325
326
327 /* {{{ _mysqlnd_efree */
_mysqlnd_efree(void * ptr MYSQLND_MEM_D)328 void _mysqlnd_efree(void *ptr MYSQLND_MEM_D)
329 {
330 size_t free_amount = 0;
331 zend_bool collect_memory_statistics = MYSQLND_G(collect_memory_statistics);
332 TRACE_ALLOC_ENTER(mysqlnd_efree_name);
333
334 #if PHP_DEBUG
335 {
336 char * fn = strrchr(__zend_orig_filename, PHP_DIR_SEPARATOR);
337 TRACE_ALLOC_INF_FMT("file=%-15s line=%4d", fn? fn + 1:__zend_orig_filename, __zend_orig_lineno);
338 }
339 #endif
340 TRACE_ALLOC_INF_FMT("ptr=%p", ptr);
341
342 if (ptr) {
343 if (collect_memory_statistics) {
344 free_amount = *(size_t *)(((char*)ptr) - sizeof(size_t));
345 TRACE_ALLOC_INF_FMT("ptr=%p size=%u", ((char*)ptr) - sizeof(size_t), (unsigned int) free_amount);
346 }
347 _efree(REAL_PTR(ptr) ZEND_FILE_LINE_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
348 }
349
350 if (collect_memory_statistics) {
351 MYSQLND_INC_GLOBAL_STATISTIC_W_VALUE2(STAT_MEM_EFREE_COUNT, 1, STAT_MEM_EFREE_AMOUNT, free_amount);
352 }
353 TRACE_ALLOC_VOID_RETURN;
354 }
355 /* }}} */
356
357
358 /* {{{ _mysqlnd_pefree */
_mysqlnd_pefree(void * ptr,zend_bool persistent MYSQLND_MEM_D)359 void _mysqlnd_pefree(void *ptr, zend_bool persistent MYSQLND_MEM_D)
360 {
361 size_t free_amount = 0;
362 zend_bool collect_memory_statistics = MYSQLND_G(collect_memory_statistics);
363 TRACE_ALLOC_ENTER(mysqlnd_pefree_name);
364
365 #if PHP_DEBUG
366 {
367 char * fn = strrchr(__zend_orig_filename, PHP_DIR_SEPARATOR);
368 TRACE_ALLOC_INF_FMT("file=%-15s line=%4d", fn? fn + 1:__zend_orig_filename, __zend_orig_lineno);
369 }
370 #endif
371 TRACE_ALLOC_INF_FMT("ptr=%p persistent=%u", ptr, persistent);
372
373 if (ptr) {
374 if (collect_memory_statistics) {
375 free_amount = *(size_t *)(((char*)ptr) - sizeof(size_t));
376 TRACE_ALLOC_INF_FMT("ptr=%p size=%u", ((char*)ptr) - sizeof(size_t), (unsigned int) free_amount);
377 }
378 (persistent) ? free(REAL_PTR(ptr)) : _efree(REAL_PTR(ptr) ZEND_FILE_LINE_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
379 }
380
381 if (collect_memory_statistics) {
382 MYSQLND_INC_GLOBAL_STATISTIC_W_VALUE2(persistent? STAT_MEM_FREE_COUNT:STAT_MEM_EFREE_COUNT, 1,
383 persistent? STAT_MEM_FREE_AMOUNT:STAT_MEM_EFREE_AMOUNT, free_amount);
384 }
385 TRACE_ALLOC_VOID_RETURN;
386 }
387 /* }}} */
388
389
390 /* {{{ _mysqlnd_malloc */
_mysqlnd_malloc(size_t size MYSQLND_MEM_D)391 void * _mysqlnd_malloc(size_t size MYSQLND_MEM_D)
392 {
393 void *ret;
394 zend_bool collect_memory_statistics = MYSQLND_G(collect_memory_statistics);
395 #if PHP_DEBUG
396 zend_long * threshold = &MYSQLND_G(debug_malloc_fail_threshold);
397 #endif
398 TRACE_ALLOC_ENTER(mysqlnd_malloc_name);
399
400 #if PHP_DEBUG
401 {
402 char * fn = strrchr(__zend_orig_filename, PHP_DIR_SEPARATOR);
403 TRACE_ALLOC_INF_FMT("file=%-15s line=%4d", fn? fn + 1:__zend_orig_filename, __zend_orig_lineno);
404 }
405 #endif
406
407 #if PHP_DEBUG
408 /* -1 is also "true" */
409 if (*threshold) {
410 #endif
411 ret = malloc(REAL_SIZE(size));
412 #if PHP_DEBUG
413 --*threshold;
414 } else if (*threshold == 0) {
415 ret = NULL;
416 }
417 #endif
418
419 TRACE_ALLOC_INF_FMT("size=%lu ptr=%p", size, ret);
420 if (ret && collect_memory_statistics) {
421 *(size_t *) ret = size;
422 MYSQLND_INC_GLOBAL_STATISTIC_W_VALUE2(STAT_MEM_MALLOC_COUNT, 1, STAT_MEM_MALLOC_AMOUNT, size);
423 }
424 TRACE_ALLOC_RETURN(FAKE_PTR(ret));
425 }
426 /* }}} */
427
428
429 /* {{{ _mysqlnd_calloc */
_mysqlnd_calloc(unsigned int nmemb,size_t size MYSQLND_MEM_D)430 void * _mysqlnd_calloc(unsigned int nmemb, size_t size MYSQLND_MEM_D)
431 {
432 void *ret;
433 zend_bool collect_memory_statistics = MYSQLND_G(collect_memory_statistics);
434 #if PHP_DEBUG
435 zend_long * threshold = &MYSQLND_G(debug_calloc_fail_threshold);
436 #endif
437 TRACE_ALLOC_ENTER(mysqlnd_calloc_name);
438
439 #if PHP_DEBUG
440 {
441 char * fn = strrchr(__zend_orig_filename, PHP_DIR_SEPARATOR);
442 TRACE_ALLOC_INF_FMT("file=%-15s line=%4d", fn? fn + 1:__zend_orig_filename, __zend_orig_lineno);
443 }
444 #endif
445
446 #if PHP_DEBUG
447 /* -1 is also "true" */
448 if (*threshold) {
449 #endif
450 ret = calloc(nmemb, REAL_SIZE(size));
451 #if PHP_DEBUG
452 --*threshold;
453 } else if (*threshold == 0) {
454 ret = NULL;
455 }
456 #endif
457
458 TRACE_ALLOC_INF_FMT("size=%lu ptr=%p", size, ret);
459 if (ret && collect_memory_statistics) {
460 *(size_t *) ret = size;
461 MYSQLND_INC_GLOBAL_STATISTIC_W_VALUE2(STAT_MEM_CALLOC_COUNT, 1, STAT_MEM_CALLOC_AMOUNT, size);
462 }
463 TRACE_ALLOC_RETURN(FAKE_PTR(ret));
464 }
465 /* }}} */
466
467
468 /* {{{ _mysqlnd_realloc */
_mysqlnd_realloc(void * ptr,size_t new_size MYSQLND_MEM_D)469 void * _mysqlnd_realloc(void *ptr, size_t new_size MYSQLND_MEM_D)
470 {
471 void *ret;
472 zend_bool collect_memory_statistics = MYSQLND_G(collect_memory_statistics);
473 #if PHP_DEBUG
474 zend_long * threshold = &MYSQLND_G(debug_realloc_fail_threshold);
475 #endif
476 TRACE_ALLOC_ENTER(mysqlnd_realloc_name);
477
478 #if PHP_DEBUG
479 {
480 char * fn = strrchr(__zend_orig_filename, PHP_DIR_SEPARATOR);
481 TRACE_ALLOC_INF_FMT("file=%-15s line=%4d", fn? fn + 1:__zend_orig_filename, __zend_orig_lineno);
482 }
483 #endif
484 TRACE_ALLOC_INF_FMT("ptr=%p new_size=%lu ", new_size, ptr);
485 TRACE_ALLOC_INF_FMT("before: %lu", zend_memory_usage(TRUE));
486
487 #if PHP_DEBUG
488 /* -1 is also "true" */
489 if (*threshold) {
490 #endif
491 ret = realloc(REAL_PTR(ptr), REAL_SIZE(new_size));
492 #if PHP_DEBUG
493 --*threshold;
494 } else if (*threshold == 0) {
495 ret = NULL;
496 }
497 #endif
498
499 TRACE_ALLOC_INF_FMT("new_ptr=%p", (char*)ret);
500
501 if (ret && collect_memory_statistics) {
502 *(size_t *) ret = new_size;
503 MYSQLND_INC_GLOBAL_STATISTIC_W_VALUE2(STAT_MEM_REALLOC_COUNT, 1, STAT_MEM_REALLOC_AMOUNT, new_size);
504 }
505 TRACE_ALLOC_RETURN(FAKE_PTR(ret));
506 }
507 /* }}} */
508
509
510 /* {{{ _mysqlnd_free */
_mysqlnd_free(void * ptr MYSQLND_MEM_D)511 void _mysqlnd_free(void *ptr MYSQLND_MEM_D)
512 {
513 size_t free_amount = 0;
514 zend_bool collect_memory_statistics = MYSQLND_G(collect_memory_statistics);
515 TRACE_ALLOC_ENTER(mysqlnd_free_name);
516
517 #if PHP_DEBUG
518 {
519 char * fn = strrchr(__zend_orig_filename, PHP_DIR_SEPARATOR);
520 TRACE_ALLOC_INF_FMT("file=%-15s line=%4d", fn? fn + 1:__zend_orig_filename, __zend_orig_lineno);
521 }
522 #endif
523 TRACE_ALLOC_INF_FMT("ptr=%p", ptr);
524
525 if (ptr) {
526 if (collect_memory_statistics) {
527 free_amount = *(size_t *)(((char*)ptr) - sizeof(size_t));
528 TRACE_ALLOC_INF_FMT("ptr=%p size=%u", ((char*)ptr) - sizeof(size_t), (unsigned int) free_amount);
529 }
530 free(REAL_PTR(ptr));
531 }
532
533 if (collect_memory_statistics) {
534 MYSQLND_INC_GLOBAL_STATISTIC_W_VALUE2(STAT_MEM_FREE_COUNT, 1, STAT_MEM_FREE_AMOUNT, free_amount);
535 }
536 TRACE_ALLOC_VOID_RETURN;
537 }
538 /* }}} */
539
540 #define SMART_STR_START_SIZE 2048
541 #define SMART_STR_PREALLOC 512
542 #include "zend_smart_str.h"
543
544
545 /* {{{ _mysqlnd_pestrndup */
_mysqlnd_pestrndup(const char * const ptr,size_t length,zend_bool persistent MYSQLND_MEM_D)546 char * _mysqlnd_pestrndup(const char * const ptr, size_t length, zend_bool persistent MYSQLND_MEM_D)
547 {
548 char * ret;
549 zend_bool collect_memory_statistics = MYSQLND_G(collect_memory_statistics);
550 TRACE_ALLOC_ENTER(mysqlnd_pestrndup_name);
551
552 #if PHP_DEBUG
553 {
554 char * fn = strrchr(__zend_orig_filename, PHP_DIR_SEPARATOR);
555 TRACE_ALLOC_INF_FMT("file=%-15s line=%4d", fn? fn + 1:__zend_orig_filename, __zend_orig_lineno);
556 }
557 #endif
558 TRACE_ALLOC_INF_FMT("ptr=%p", ptr);
559
560 ret = (persistent) ? __zend_malloc(REAL_SIZE(length + 1)) : _emalloc(REAL_SIZE(length + 1) ZEND_FILE_LINE_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
561 {
562 size_t l = length;
563 char * p = (char *) ptr;
564 char * dest = (char *) FAKE_PTR(ret);
565 while (*p && l--) {
566 *dest++ = *p++;
567 }
568 *dest = '\0';
569 }
570
571 if (collect_memory_statistics) {
572 *(size_t *) ret = length;
573 MYSQLND_INC_GLOBAL_STATISTIC(persistent? STAT_MEM_STRNDUP_COUNT : STAT_MEM_ESTRNDUP_COUNT);
574 }
575
576 TRACE_ALLOC_RETURN(FAKE_PTR(ret));
577 }
578 /* }}} */
579
580
581 /* {{{ _mysqlnd_pestrdup */
_mysqlnd_pestrdup(const char * const ptr,zend_bool persistent MYSQLND_MEM_D)582 char * _mysqlnd_pestrdup(const char * const ptr, zend_bool persistent MYSQLND_MEM_D)
583 {
584 char * ret;
585 smart_str tmp_str = {0, 0};
586 const char * p = ptr;
587 zend_bool collect_memory_statistics = MYSQLND_G(collect_memory_statistics);
588 TRACE_ALLOC_ENTER(mysqlnd_pestrdup_name);
589 #if PHP_DEBUG
590 {
591 char * fn = strrchr(__zend_orig_filename, PHP_DIR_SEPARATOR);
592 TRACE_ALLOC_INF_FMT("file=%-15s line=%4d", fn? fn + 1:__zend_orig_filename, __zend_orig_lineno);
593 }
594 #endif
595 TRACE_ALLOC_INF_FMT("ptr=%p", ptr);
596 do {
597 smart_str_appendc(&tmp_str, *p);
598 } while (*p++);
599
600 ret = (persistent) ? __zend_malloc(ZSTR_LEN(tmp_str.s) + sizeof(size_t)) : _emalloc(REAL_SIZE(ZSTR_LEN(tmp_str.s) + sizeof(size_t)) ZEND_FILE_LINE_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
601 memcpy(FAKE_PTR(ret), ZSTR_VAL(tmp_str.s), ZSTR_LEN(tmp_str.s));
602
603 if (ret && collect_memory_statistics) {
604 *(size_t *) ret = ZSTR_LEN(tmp_str.s);
605 MYSQLND_INC_GLOBAL_STATISTIC(persistent? STAT_MEM_STRDUP_COUNT : STAT_MEM_ESTRDUP_COUNT);
606 }
607 smart_str_free(&tmp_str);
608
609 TRACE_ALLOC_RETURN(FAKE_PTR(ret));
610 }
611 /* }}} */
612
613
614 /* {{{ _mysqlnd_sprintf */
_mysqlnd_sprintf(char ** pbuf,size_t max_len,const char * format,...)615 PHPAPI int _mysqlnd_sprintf(char ** pbuf, size_t max_len, const char *format, ...)
616 {
617 int len;
618 va_list ap;
619 va_start(ap, format);
620 len = vspprintf(pbuf, max_len, format, ap);
621 va_end(ap);
622 return len;
623 }
624 /* }}} */
625
626
627 /* {{{ _mysqlnd_sprintf_free */
_mysqlnd_sprintf_free(char * p)628 PHPAPI void _mysqlnd_sprintf_free(char * p)
629 {
630 efree(p);
631 }
632 /* }}} */
633
634 /* {{{ _mysqlnd_vsprintf */
_mysqlnd_vsprintf(char ** pbuf,size_t max_len,const char * format,va_list ap)635 PHPAPI int _mysqlnd_vsprintf(char ** pbuf, size_t max_len, const char * format, va_list ap)
636 {
637 return vspprintf(pbuf, max_len, format, ap);
638 }
639 /* }}} */
640
641
642 #define MYSQLND_DEBUG_MEMORY 1
643
644 #if MYSQLND_DEBUG_MEMORY == 0
645
646 /* {{{ mysqlnd_zend_mm_emalloc */
mysqlnd_zend_mm_emalloc(size_t size MYSQLND_MEM_D)647 static void * mysqlnd_zend_mm_emalloc(size_t size MYSQLND_MEM_D)
648 {
649 return emalloc(size);
650 }
651 /* }}} */
652
653
654 /* {{{ mysqlnd_zend_mm_pemalloc */
mysqlnd_zend_mm_pemalloc(size_t size,zend_bool persistent MYSQLND_MEM_D)655 static void * mysqlnd_zend_mm_pemalloc(size_t size, zend_bool persistent MYSQLND_MEM_D)
656 {
657 return pemalloc(size, persistent);
658 }
659 /* }}} */
660
661
662 /* {{{ mysqlnd_zend_mm_ecalloc */
mysqlnd_zend_mm_ecalloc(unsigned int nmemb,size_t size MYSQLND_MEM_D)663 static void * mysqlnd_zend_mm_ecalloc(unsigned int nmemb, size_t size MYSQLND_MEM_D)
664 {
665 return ecalloc(nmemb, size);
666 }
667 /* }}} */
668
669
670 /* {{{ mysqlnd_zend_mm_pecalloc */
mysqlnd_zend_mm_pecalloc(unsigned int nmemb,size_t size,zend_bool persistent MYSQLND_MEM_D)671 static void * mysqlnd_zend_mm_pecalloc(unsigned int nmemb, size_t size, zend_bool persistent MYSQLND_MEM_D)
672 {
673 return pecalloc(nmemb, size, persistent);
674 }
675 /* }}} */
676
677
678 /* {{{ mysqlnd_zend_mm_erealloc */
mysqlnd_zend_mm_erealloc(void * ptr,size_t new_size MYSQLND_MEM_D)679 static void * mysqlnd_zend_mm_erealloc(void *ptr, size_t new_size MYSQLND_MEM_D)
680 {
681 return erealloc(ptr, new_size);
682 }
683 /* }}} */
684
685
686 /* {{{ mysqlnd_zend_mm_perealloc */
mysqlnd_zend_mm_perealloc(void * ptr,size_t new_size,zend_bool persistent MYSQLND_MEM_D)687 static void * mysqlnd_zend_mm_perealloc(void *ptr, size_t new_size, zend_bool persistent MYSQLND_MEM_D)
688 {
689 return perealloc(ptr, new_size, persistent);
690 }
691 /* }}} */
692
693
694 /* {{{ mysqlnd_zend_mm_efree */
mysqlnd_zend_mm_efree(void * ptr MYSQLND_MEM_D)695 static void mysqlnd_zend_mm_efree(void * ptr MYSQLND_MEM_D)
696 {
697 efree(ptr);
698 }
699 /* }}} */
700
701
702 /* {{{ mysqlnd_zend_mm_pefree */
mysqlnd_zend_mm_pefree(void * ptr,zend_bool persistent MYSQLND_MEM_D)703 static void mysqlnd_zend_mm_pefree(void * ptr, zend_bool persistent MYSQLND_MEM_D)
704 {
705 pefree(ptr, persistent);
706 }
707 /* }}} */
708
709
710 /* {{{ mysqlnd_zend_mm_malloc */
mysqlnd_zend_mm_malloc(size_t size MYSQLND_MEM_D)711 static void * mysqlnd_zend_mm_malloc(size_t size MYSQLND_MEM_D)
712 {
713 return malloc(size);
714 }
715 /* }}} */
716
717
718 /* {{{ mysqlnd_zend_mm_calloc */
mysqlnd_zend_mm_calloc(unsigned int nmemb,size_t size MYSQLND_MEM_D)719 static void * mysqlnd_zend_mm_calloc(unsigned int nmemb, size_t size MYSQLND_MEM_D)
720 {
721 return calloc(nmemb, size);
722 }
723 /* }}} */
724
725
726 /* {{{ mysqlnd_zend_mm_realloc */
mysqlnd_zend_mm_realloc(void * ptr,size_t new_size MYSQLND_MEM_D)727 static void * mysqlnd_zend_mm_realloc(void * ptr, size_t new_size MYSQLND_MEM_D)
728 {
729 return realloc(ptr, new_size);
730 }
731 /* }}} */
732
733
734 /* {{{ mysqlnd_zend_mm_free */
mysqlnd_zend_mm_free(void * ptr MYSQLND_MEM_D)735 static void mysqlnd_zend_mm_free(void * ptr MYSQLND_MEM_D)
736 {
737 free(ptr);
738 }
739 /* }}} */
740
741
742 /* {{{ mysqlnd_zend_mm_pestrndup */
mysqlnd_zend_mm_pestrndup(const char * const ptr,size_t length,zend_bool persistent MYSQLND_MEM_D)743 static char * mysqlnd_zend_mm_pestrndup(const char * const ptr, size_t length, zend_bool persistent MYSQLND_MEM_D)
744 {
745 return pestrndup(ptr, length, persistent);
746 }
747 /* }}} */
748
749
750 /* {{{ mysqlnd_zend_mm_pestrdup */
mysqlnd_zend_mm_pestrdup(const char * const ptr,zend_bool persistent MYSQLND_MEM_D)751 static char * mysqlnd_zend_mm_pestrdup(const char * const ptr, zend_bool persistent MYSQLND_MEM_D)
752 {
753 return pestrdup(ptr, persistent);
754 }
755 /* }}} */
756
757 #endif
758
759
760 PHPAPI struct st_mysqlnd_allocator_methods mysqlnd_allocator =
761 {
762 #if MYSQLND_DEBUG_MEMORY
763 _mysqlnd_emalloc,
764 _mysqlnd_pemalloc,
765 _mysqlnd_ecalloc,
766 _mysqlnd_pecalloc,
767 _mysqlnd_erealloc,
768 _mysqlnd_perealloc,
769 _mysqlnd_efree,
770 _mysqlnd_pefree,
771 _mysqlnd_malloc,
772 _mysqlnd_calloc,
773 _mysqlnd_realloc,
774 _mysqlnd_free,
775 _mysqlnd_pestrndup,
776 _mysqlnd_pestrdup,
777 _mysqlnd_sprintf,
778 _mysqlnd_vsprintf,
779 _mysqlnd_sprintf_free
780 #else
781 mysqlnd_zend_mm_emalloc,
782 mysqlnd_zend_mm_pemalloc,
783 mysqlnd_zend_mm_ecalloc,
784 mysqlnd_zend_mm_pecalloc,
785 mysqlnd_zend_mm_erealloc,
786 mysqlnd_zend_mm_perealloc,
787 mysqlnd_zend_mm_efree,
788 mysqlnd_zend_mm_pefree,
789 mysqlnd_zend_mm_malloc,
790 mysqlnd_zend_mm_calloc,
791 mysqlnd_zend_mm_realloc,
792 mysqlnd_zend_mm_free,
793 mysqlnd_zend_mm_pestrndup,
794 mysqlnd_zend_mm_pestrdup
795 sprintf,
796 mysqlnd_zend_mm_efree,
797 #endif
798 };
799
800
801 /*
802 * Local variables:
803 * tab-width: 4
804 * c-basic-offset: 4
805 * End:
806 * vim600: noet sw=4 ts=4 fdm=marker
807 * vim<600: noet sw=4 ts=4
808 */
809
