Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tag: php-5.0.4RC1
Fetching contributors…

Octocat-spinner-32-eaf2f5

Cannot retrieve contributors at this time

file 693 lines (598 sloc) 18.472 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692
/*
+----------------------------------------------------------------------+
| Thread Safe Resource Manager |
+----------------------------------------------------------------------+
| Copyright (c) 1999, 2000, Andi Gutmans, Sascha Schumann, Zeev Suraski|
| This source file is subject to the TSRM license, that is bundled |
| with this package in the file LICENSE |
+----------------------------------------------------------------------+
| Authors: Zeev Suraski <zeev@zend.com> |
+----------------------------------------------------------------------+
*/

#include "TSRM.h"

#ifdef ZTS

#include <stdio.h>

#if HAVE_STDARG_H
#include <stdarg.h>
#endif

typedef struct _tsrm_tls_entry tsrm_tls_entry;

struct _tsrm_tls_entry {
void **storage;
int count;
THREAD_T thread_id;
tsrm_tls_entry *next;
};


typedef struct {
size_t size;
ts_allocate_ctor ctor;
ts_allocate_dtor dtor;
#ifdef MBO_0
int done;
#endif
} tsrm_resource_type;


/* The memory manager table */
static tsrm_tls_entry **tsrm_tls_table=NULL;
static int tsrm_tls_table_size;
static ts_rsrc_id id_count;

/* The resource sizes table */
static tsrm_resource_type *resource_types_table=NULL;
static int resource_types_table_size;


static MUTEX_T tsmm_mutex; /* thread-safe memory manager mutex */

/* New thread handlers */
static tsrm_thread_begin_func_t tsrm_new_thread_begin_handler;
static tsrm_thread_end_func_t tsrm_new_thread_end_handler;

/* Debug support */
int tsrm_error(int level, const char *format, ...);

/* Read a resource from a thread's resource storage */
static int tsrm_error_level;
static FILE *tsrm_error_file;

#if TSRM_DEBUG
#define TSRM_ERROR(args) tsrm_error args
#define TSRM_SAFE_RETURN_RSRC(array, offset, range) \
{ \
int unshuffled_offset = TSRM_UNSHUFFLE_RSRC_ID(offset); \
\
if (offset==0) { \
return &array; \
} else if ((unshuffled_offset)>=0 && (unshuffled_offset)<(range)) { \
TSRM_ERROR((TSRM_ERROR_LEVEL_INFO, "Successfully fetched resource id %d for thread id %ld - 0x%0.8X", \
unshuffled_offset, (long) thread_resources->thread_id, array[unshuffled_offset])); \
return array[unshuffled_offset]; \
} else { \
TSRM_ERROR((TSRM_ERROR_LEVEL_ERROR, "Resource id %d is out of range (%d..%d)", \
unshuffled_offset, TSRM_SHUFFLE_RSRC_ID(0), TSRM_SHUFFLE_RSRC_ID(thread_resources->count-1))); \
return NULL; \
} \
}
#else
#define TSRM_ERROR(args)
#define TSRM_SAFE_RETURN_RSRC(array, offset, range) \
if (offset==0) { \
return &array; \
} else { \
return array[TSRM_UNSHUFFLE_RSRC_ID(offset)]; \
}
#endif

#if defined(PTHREADS)
/* Thread local storage */
static pthread_key_t tls_key;
#elif defined(TSRM_ST)
static int tls_key;
#elif defined(TSRM_WIN32)
static DWORD tls_key;
#elif defined(BETHREADS)
static int32 tls_key;
#endif

/* Startup TSRM (call once for the entire process) */
TSRM_API int tsrm_startup(int expected_threads, int expected_resources, int debug_level, char *debug_filename)
{
#if defined(GNUPTH)
pth_init();
#elif defined(PTHREADS)
pthread_key_create( &tls_key, 0 );
#elif defined(TSRM_ST)
st_init();
st_key_create(&tls_key, 0);
#elif defined(TSRM_WIN32)
tls_key = TlsAlloc();
#elif defined(BETHREADS)
tls_key = tls_allocate();
#endif

tsrm_error_file = stderr;
tsrm_error_set(debug_level, debug_filename);
tsrm_tls_table_size = expected_threads;

tsrm_tls_table = (tsrm_tls_entry **) calloc(tsrm_tls_table_size, sizeof(tsrm_tls_entry *));
if (!tsrm_tls_table) {
TSRM_ERROR((TSRM_ERROR_LEVEL_ERROR, "Unable to allocate TLS table"));
return 0;
}
id_count=0;

resource_types_table_size = expected_resources;
resource_types_table = (tsrm_resource_type *) calloc(resource_types_table_size, sizeof(tsrm_resource_type));
if (!resource_types_table) {
TSRM_ERROR((TSRM_ERROR_LEVEL_ERROR, "Unable to allocate resource types table"));
free(tsrm_tls_table);
tsrm_tls_table = NULL;
return 0;
}

tsmm_mutex = tsrm_mutex_alloc();

tsrm_new_thread_begin_handler = tsrm_new_thread_end_handler = NULL;

TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Started up TSRM, %d expected threads, %d expected resources", expected_threads, expected_resources));
return 1;
}


/* Shutdown TSRM (call once for the entire process) */
TSRM_API void tsrm_shutdown(void)
{
int i;

if (tsrm_tls_table) {
for (i=0; i<tsrm_tls_table_size; i++) {
tsrm_tls_entry *p = tsrm_tls_table[i], *next_p;

while (p) {
int j;

next_p = p->next;
for (j=0; j<p->count; j++) {
if (p->storage[j]) {
#ifdef MBO_0
if (resource_types_table && !resource_types_table[j].done && resource_types_table[j].dtor) {
resource_types_table[j].dtor(p->storage[j], &p->storage);
}
#endif
free(p->storage[j]);
}
}
free(p->storage);
free(p);
p = next_p;
}
}
free(tsrm_tls_table);
tsrm_tls_table = NULL;
}
if (resource_types_table) {
free(resource_types_table);
resource_types_table=NULL;
}
tsrm_mutex_free(tsmm_mutex);
tsmm_mutex = NULL;
TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Shutdown TSRM"));
if (tsrm_error_file!=stderr) {
fclose(tsrm_error_file);
}
#if defined(GNUPTH)
pth_kill();
#elif defined(PTHREADS)
pthread_setspecific(tls_key, 0);
pthread_key_delete(tls_key);
#elif defined(TSRM_WIN32)
TlsFree(tls_key);
#endif
}


/* allocates a new thread-safe-resource id */
TSRM_API ts_rsrc_id ts_allocate_id(ts_rsrc_id *rsrc_id, size_t size, ts_allocate_ctor ctor, ts_allocate_dtor dtor)
{
int i;

TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Obtaining a new resource id, %d bytes", size));

tsrm_mutex_lock(tsmm_mutex);

/* obtain a resource id */
*rsrc_id = TSRM_SHUFFLE_RSRC_ID(id_count++);
TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Obtained resource id %d", *rsrc_id));

/* store the new resource type in the resource sizes table */
if (resource_types_table_size < id_count) {
resource_types_table = (tsrm_resource_type *) realloc(resource_types_table, sizeof(tsrm_resource_type)*id_count);
if (!resource_types_table) {
tsrm_mutex_unlock(tsmm_mutex);
TSRM_ERROR((TSRM_ERROR_LEVEL_ERROR, "Unable to allocate storage for resource"));
*rsrc_id = 0;
return 0;
}
resource_types_table_size = id_count;
}
resource_types_table[TSRM_UNSHUFFLE_RSRC_ID(*rsrc_id)].size = size;
resource_types_table[TSRM_UNSHUFFLE_RSRC_ID(*rsrc_id)].ctor = ctor;
resource_types_table[TSRM_UNSHUFFLE_RSRC_ID(*rsrc_id)].dtor = dtor;
#ifdef MBO_0
resource_types_table[TSRM_UNSHUFFLE_RSRC_ID(*rsrc_id)].done = 0;
#endif

/* enlarge the arrays for the already active threads */
for (i=0; i<tsrm_tls_table_size; i++) {
tsrm_tls_entry *p = tsrm_tls_table[i];

while (p) {
if (p->count < id_count) {
int j;

p->storage = (void *) realloc(p->storage, sizeof(void *)*id_count);
for (j=p->count; j<id_count; j++) {
p->storage[j] = (void *) malloc(resource_types_table[j].size);
if (resource_types_table[j].ctor) {
resource_types_table[j].ctor(p->storage[j], &p->storage);
}
}
p->count = id_count;
}
p = p->next;
}
}
tsrm_mutex_unlock(tsmm_mutex);

TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Successfully allocated new resource id %d", *rsrc_id));
return *rsrc_id;
}


static void allocate_new_resource(tsrm_tls_entry **thread_resources_ptr, THREAD_T thread_id)
{
int i;

TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Creating data structures for thread %x", thread_id));
(*thread_resources_ptr) = (tsrm_tls_entry *) malloc(sizeof(tsrm_tls_entry));
(*thread_resources_ptr)->storage = (void **) malloc(sizeof(void *)*id_count);
(*thread_resources_ptr)->count = id_count;
(*thread_resources_ptr)->thread_id = thread_id;
(*thread_resources_ptr)->next = NULL;

#if defined(PTHREADS)
/* Set thread local storage to this new thread resources structure */
pthread_setspecific(tls_key, (void *) *thread_resources_ptr);
#elif defined(TSRM_ST)
st_thread_setspecific(tls_key, (void *) *thread_resources_ptr);
#elif defined(TSRM_WIN32)
TlsSetValue(tls_key, (void *) *thread_resources_ptr);
#elif defined(BETHREADS)
tls_set(tls_key, (void*) *thread_resources_ptr);
#endif

if (tsrm_new_thread_begin_handler) {
tsrm_new_thread_begin_handler(thread_id, &((*thread_resources_ptr)->storage));
}
for (i=0; i<id_count; i++) {
#if MBO_0
if (resource_types_table[i].done) {
(*thread_resources_ptr)->storage[i] = NULL;
} else
#endif
{
(*thread_resources_ptr)->storage[i] = (void *) malloc(resource_types_table[i].size);
if (resource_types_table[i].ctor) {
resource_types_table[i].ctor((*thread_resources_ptr)->storage[i], &(*thread_resources_ptr)->storage);
}
}
}

tsrm_mutex_unlock(tsmm_mutex);

if (tsrm_new_thread_end_handler) {
tsrm_new_thread_end_handler(thread_id, &((*thread_resources_ptr)->storage));
}
}


/* fetches the requested resource for the current thread */
TSRM_API void *ts_resource_ex(ts_rsrc_id id, THREAD_T *th_id)
{
THREAD_T thread_id;
int hash_value;
tsrm_tls_entry *thread_resources;

#ifdef NETWARE
/* The below if loop is added for NetWare to fix an abend while unloading PHP
* when an Apache unload command is issued on the system console.
* While exiting from PHP, at the end for some reason, this function is called
* with tsrm_tls_table = NULL. When this happened, the server abends when
* tsrm_tls_table is accessed since it is NULL.
*/
if(tsrm_tls_table) {
#endif
if (!th_id) {
#if defined(PTHREADS)
/* Fast path for looking up the resources for the current
* thread. Its used by just about every call to
* ts_resource_ex(). This avoids the need for a mutex lock
* and our hashtable lookup.
*/
thread_resources = pthread_getspecific(tls_key);
#elif defined(TSRM_ST)
thread_resources = st_thread_getspecific(tls_key);
#elif defined(TSRM_WIN32)
thread_resources = TlsGetValue(tls_key);
#elif defined(BETHREADS)
thread_resources = (tsrm_tls_entry*)tls_get(tls_key);
#else
thread_resources = NULL;
#endif
if (thread_resources) {
TSRM_ERROR((TSRM_ERROR_LEVEL_INFO, "Fetching resource id %d for current thread %d", id, (long) thread_resources->thread_id));
/* Read a specific resource from the thread's resources.
* This is called outside of a mutex, so have to be aware about external
* changes to the structure as we read it.
*/
TSRM_SAFE_RETURN_RSRC(thread_resources->storage, id, thread_resources->count);
}
thread_id = tsrm_thread_id();
} else {
thread_id = *th_id;
}

TSRM_ERROR((TSRM_ERROR_LEVEL_INFO, "Fetching resource id %d for thread %ld", id, (long) thread_id));
tsrm_mutex_lock(tsmm_mutex);

hash_value = THREAD_HASH_OF(thread_id, tsrm_tls_table_size);
thread_resources = tsrm_tls_table[hash_value];

if (!thread_resources) {
allocate_new_resource(&tsrm_tls_table[hash_value], thread_id);
return ts_resource_ex(id, &thread_id);
} else {
do {
if (thread_resources->thread_id == thread_id) {
break;
}
if (thread_resources->next) {
thread_resources = thread_resources->next;
} else {
allocate_new_resource(&thread_resources->next, thread_id);
return ts_resource_ex(id, &thread_id);
/*
* thread_resources = thread_resources->next;
* break;
*/
}
} while (thread_resources);
}
tsrm_mutex_unlock(tsmm_mutex);
/* Read a specific resource from the thread's resources.
* This is called outside of a mutex, so have to be aware about external
* changes to the structure as we read it.
*/
TSRM_SAFE_RETURN_RSRC(thread_resources->storage, id, thread_resources->count);
#ifdef NETWARE
} /* if(tsrm_tls_table) */
#endif
}


/* frees all resources allocated for the current thread */
void ts_free_thread(void)
{
tsrm_tls_entry *thread_resources;
int i;
THREAD_T thread_id = tsrm_thread_id();
int hash_value;
tsrm_tls_entry *last=NULL;

tsrm_mutex_lock(tsmm_mutex);
hash_value = THREAD_HASH_OF(thread_id, tsrm_tls_table_size);
thread_resources = tsrm_tls_table[hash_value];

while (thread_resources) {
if (thread_resources->thread_id == thread_id) {
for (i=0; i<thread_resources->count; i++) {
if (resource_types_table[i].dtor) {
resource_types_table[i].dtor(thread_resources->storage[i], &thread_resources->storage);
}
}
for (i=0; i<thread_resources->count; i++) {
free(thread_resources->storage[i]);
}
free(thread_resources->storage);
if (last) {
last->next = thread_resources->next;
} else {
tsrm_tls_table[hash_value] = thread_resources->next;
}
#if defined(PTHREADS)
pthread_setspecific(tls_key, 0);
#elif defined(TSRM_WIN32)
TlsSetValue(tls_key, 0);
#endif
free(thread_resources);
break;
}
if (thread_resources->next) {
last = thread_resources;
}
thread_resources = thread_resources->next;
}
tsrm_mutex_unlock(tsmm_mutex);
}


/* deallocates all occurrences of a given id */
void ts_free_id(ts_rsrc_id id)
{
#ifdef MBO_0
int i;
int j = TSRM_UNSHUFFLE_RSRC_ID(id);

tsrm_mutex_lock(tsmm_mutex);

TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Freeing resource id %d", id));

if (tsrm_tls_table) {
for (i=0; i<tsrm_tls_table_size; i++) {
tsrm_tls_entry *p = tsrm_tls_table[i];

while (p) {
if (p->count > j && p->storage[j]) {
if (resource_types_table && resource_types_table[j].dtor) {
resource_types_table[j].dtor(p->storage[j], &p->storage);
}
free(p->storage[j]);
p->storage[j] = NULL;
}
p = p->next;
}
}
}
resource_types_table[j].done = 1;

tsrm_mutex_unlock(tsmm_mutex);

TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Successfully freed resource id %d", id));
#endif
}




/*
* Utility Functions
*/

/* Obtain the current thread id */
TSRM_API THREAD_T tsrm_thread_id(void)
{
#ifdef TSRM_WIN32
return GetCurrentThreadId();
#elif defined(GNUPTH)
return pth_self();
#elif defined(PTHREADS)
return pthread_self();
#elif defined(NSAPI)
return systhread_current();
#elif defined(PI3WEB)
return PIThread_getCurrent();
#elif defined(TSRM_ST)
return st_thread_self();
#elif defined(BETHREADS)
return find_thread(NULL);
#endif
}


/* Allocate a mutex */
TSRM_API MUTEX_T tsrm_mutex_alloc(void)
{
MUTEX_T mutexp;
#ifdef TSRM_WIN32
mutexp = malloc(sizeof(CRITICAL_SECTION));
InitializeCriticalSection(mutexp);
#elif defined(GNUPTH)
mutexp = (MUTEX_T) malloc(sizeof(*mutexp));
pth_mutex_init(mutexp);
#elif defined(PTHREADS)
mutexp = (pthread_mutex_t *)malloc(sizeof(pthread_mutex_t));
pthread_mutex_init(mutexp,NULL);
#elif defined(NSAPI)
mutexp = crit_init();
#elif defined(PI3WEB)
mutexp = PIPlatform_allocLocalMutex();
#elif defined(TSRM_ST)
mutexp = st_mutex_new();
#elif defined(BETHREADS)
mutexp = (beos_ben*)malloc(sizeof(beos_ben));
mutexp->ben = 0;
mutexp->sem = create_sem(1, "PHP sempahore");
#endif
#ifdef THR_DEBUG
printf("Mutex created thread: %d\n",mythreadid());
#endif
return( mutexp );
}


/* Free a mutex */
TSRM_API void tsrm_mutex_free(MUTEX_T mutexp)
{
if (mutexp) {
#ifdef TSRM_WIN32
DeleteCriticalSection(mutexp);
free(mutexp);
#elif defined(NETWARE)
#ifdef USE_MPK
kMutexFree(mutexp);
#else
NXMutexFree(mutexp);
#endif
#elif defined(GNUPTH)
free(mutexp);
#elif defined(PTHREADS)
pthread_mutex_destroy(mutexp);
free(mutexp);
#elif defined(NSAPI)
crit_terminate(mutexp);
#elif defined(PI3WEB)
PISync_delete(mutexp);
#elif defined(TSRM_ST)
st_mutex_destroy(mutexp);
#elif defined(BETHREADS)
delete_sem(mutexp->sem);
free(mutexp);
#endif
}
#ifdef THR_DEBUG
printf("Mutex freed thread: %d\n",mythreadid());
#endif
}


/* Lock a mutex */
TSRM_API int tsrm_mutex_lock(MUTEX_T mutexp)
{
TSRM_ERROR((TSRM_ERROR_LEVEL_INFO, "Mutex locked thread: %ld", tsrm_thread_id()));
#ifdef TSRM_WIN32
EnterCriticalSection(mutexp);
return 1;
#elif defined(NETWARE)
#ifdef USE_MPK
return kMutexLock(mutexp);
#else
return NXLock(mutexp);
#endif
#elif defined(GNUPTH)
return pth_mutex_acquire(mutexp, 0, NULL);
#elif defined(PTHREADS)
return pthread_mutex_lock(mutexp);
#elif defined(NSAPI)
return crit_enter(mutexp);
#elif defined(PI3WEB)
return PISync_lock(mutexp);
#elif defined(TSRM_ST)
return st_mutex_lock(mutexp);
#elif defined(BETHREADS)
if (atomic_add(&mutexp->ben, 1) != 0)
return acquire_sem(mutexp->sem);
return 0;
#endif
}


/* Unlock a mutex */
TSRM_API int tsrm_mutex_unlock(MUTEX_T mutexp)
{
TSRM_ERROR((TSRM_ERROR_LEVEL_INFO, "Mutex unlocked thread: %ld", tsrm_thread_id()));
#ifdef TSRM_WIN32
LeaveCriticalSection(mutexp);
return 1;
#elif defined(NETWARE)
#ifdef USE_MPK
return kMutexUnlock(mutexp);
#else
return NXUnlock(mutexp);
#endif
#elif defined(GNUPTH)
return pth_mutex_release(mutexp);
#elif defined(PTHREADS)
return pthread_mutex_unlock(mutexp);
#elif defined(NSAPI)
return crit_exit(mutexp);
#elif defined(PI3WEB)
return PISync_unlock(mutexp);
#elif defined(TSRM_ST)
return st_mutex_unlock(mutexp);
#elif defined(BETHREADS)
if (atomic_add(&mutexp->ben, -1) != 1)
return release_sem(mutexp->sem);
return 0;
#endif
}


TSRM_API void *tsrm_set_new_thread_begin_handler(tsrm_thread_begin_func_t new_thread_begin_handler)
{
void *retval = (void *) tsrm_new_thread_begin_handler;

tsrm_new_thread_begin_handler = new_thread_begin_handler;
return retval;
}


TSRM_API void *tsrm_set_new_thread_end_handler(tsrm_thread_end_func_t new_thread_end_handler)
{
void *retval = (void *) tsrm_new_thread_end_handler;

tsrm_new_thread_end_handler = new_thread_end_handler;
return retval;
}



/*
* Debug support
*/

#if TSRM_DEBUG
int tsrm_error(int level, const char *format, ...)
{
if (level<=tsrm_error_level) {
va_list args;
int size;

fprintf(tsrm_error_file, "TSRM: ");
va_start(args, format);
size = vfprintf(tsrm_error_file, format, args);
va_end(args);
fprintf(tsrm_error_file, "\n");
fflush(tsrm_error_file);
return size;
} else {
return 0;
}
}
#endif


void tsrm_error_set(int level, char *debug_filename)
{
tsrm_error_level = level;

#if TSRM_DEBUG
if (tsrm_error_file!=stderr) { /* close files opened earlier */
fclose(tsrm_error_file);
}

if (debug_filename) {
tsrm_error_file = fopen(debug_filename, "w");
if (!tsrm_error_file) {
tsrm_error_file = stderr;
}
} else {
tsrm_error_file = stderr;
}
#endif
}

#endif /* ZTS */
Something went wrong with that request. Please try again.