hvirtual/cinelerra/renderfarmfsclient.C

   1 // Disable 64 bit indirections so we can override both functions.
   2 #undef _LARGEFILE64_SOURCE
   3 #undef _LARGEFILE_SOURCE
   4 #undef _FILE_OFFSET_BITS
   5
   6 #include "mutex.h"
   7 #include "renderfarm.h"
   8 #include "renderfarmclient.h"
   9 #include "renderfarmfsclient.h"
  10 #include "renderfarmfsserver.inc"
  11 #include "units.h"
  12
  13 #include <dlfcn.h>
  14 #include <fcntl.h>
  15 #include <stdarg.h>
  16 #include <stdio.h>
  17 #include <string.h>
  18 #include <sys/stat.h>
  19 #include <unistd.h>
  20
  21
  22 #define DEBUG 0
  23
  24 // These are hacks to get all the file I/O libraries to transparently
  25 // go over the network without rewriting them.
  26
  27
  28 extern "C"
  29 {
  30
  31
  32
  33
  34
  35
  36
  37 RenderFarmFSClient *renderfarm_fs_global = 0;
  38
  39
  40 // open doesn't seem overridable
  41 // int open (__const char *path, int flags, ...)
  42 // {
  43 //      static int (*func)(__const char *__file, int __oflag) = 0;
  44 //      int result = -1;
  45 // printf("open %s\n", path);
  46 //
  47 //      if (!func)
  48 //      func = (int(*)(const char *path, int flags))dlsym(RTLD_NEXT, "open");
  49 //
  50 //      result = (*func)(path, flags);
  51 //      return result;
  52 // }
  53
  54
  55 FILE* fopen(const char *path, const char *mode)
  56 {
  57         static FILE* (*func)(const char *path, const char *mode) = 0;
  58 // This pointer is meaningless except on the server.
  59         FILE *result = 0;
  60
  61         if (!func)
  62         func = (FILE*(*)(const char *path, const char *mode))dlsym(RTLD_NEXT, "fopen");
  63
  64 // VFS path
  65         if(!strncmp(path, RENDERFARM_FS_PREFIX, strlen(RENDERFARM_FS_PREFIX)))
  66         {
  67                 renderfarm_fs_global->lock();
  68                 result = renderfarm_fs_global->fopen(path, mode);
  69                 renderfarm_fs_global->unlock();
  70         }
  71         else
  72                 result = (*func)(path, mode);
  73
  74     return result;
  75 }
  76
  77 FILE* fopen64(const char *path, const char *mode)
  78 {
  79         static FILE* (*func)(const char *path, const char *mode) = 0;
  80 // This pointer is meaningless except on the server.
  81         FILE *result = 0;
  82
  83 //printf("fopen64 %s\n", path);
  84         if (!func)
  85         func = (FILE*(*)(const char *path, const char *mode))dlsym(RTLD_NEXT, "fopen64");
  86
  87 // VFS path
  88         if(!strncmp(path, RENDERFARM_FS_PREFIX, strlen(RENDERFARM_FS_PREFIX)))
  89         {
  90                 renderfarm_fs_global->lock();
  91                 result = renderfarm_fs_global->fopen(path, mode);
  92                 renderfarm_fs_global->unlock();
  93         }
  94         else
  95                 result = (*func)(path, mode);
  96
  97     return result;
  98 }
  99
 100
 101
 102 int fclose(FILE *file)
 103 {
 104         static int (*func)(FILE *) = 0;
 105         int result = 0, done = 0;
 106         if(!func)
 107         func = (int(*)(FILE *))dlsym(RTLD_NEXT, "fclose");
 108 //printf("fclose\n");
 109
 110         if(renderfarm_fs_global)
 111         {
 112                 renderfarm_fs_global->lock();
 113                 if(renderfarm_fs_global->is_open(file))
 114                 {
 115                         result = renderfarm_fs_global->fclose(file);
 116                         done = 1;
 117                 }
 118                 renderfarm_fs_global->unlock();
 119         }
 120
 121         if(!done) result = (*func)(file);
 122         return result;
 123 }
 124
 125 int fileno (FILE *stream)
 126 {
 127         static int (*func)(FILE *) = 0;
 128         int result = -1;
 129         if(!func)
 130         func = (int(*)(FILE *))dlsym(RTLD_NEXT, "fileno");
 131         if(renderfarm_fs_global)
 132         {
 133                 renderfarm_fs_global->lock();
 134                 if(renderfarm_fs_global->is_open(stream))
 135                 {
 136                         result = renderfarm_fs_global->fileno(stream);
 137                 }
 138                 renderfarm_fs_global->unlock();
 139         }
 140         else
 141                 result = (*func)(stream);
 142         return result;
 143 }
 144
 145 // int fflush(FILE *file)
 146 // {
 147 //      static int (*func)(FILE *) = 0;
 148 //      int result = 0, done = 0;
 149 //      if(!func)
 150 //      func = (int(*)(FILE *))dlsym(RTLD_NEXT, "fflush");
 151 // //printf("fflush\n");
 152 //
 153 //      renderfarm_fs_global->lock();
 154 //      if(renderfarm_fs_global->is_open(file))
 155 //      {
 156 //              result = renderfarm_fs_global->fflush(file);
 157 //              done = 1;
 158 //      }
 159 //      renderfarm_fs_global->unlock();
 160 //
 161 //      if(!done) result = (*func)(file);
 162 //      return result;
 163 // }
 164
 165 int remove (__const char *__filename)
 166 {
 167         static int (*func)(__const char *) = 0;
 168         int result = 0;
 169         if(!func)
 170         func = (int(*)(__const char *))dlsym(RTLD_NEXT, "remove");
 171 //printf("remove\n");
 172
 173 // VFS path
 174         if(!strncmp(__filename, RENDERFARM_FS_PREFIX, strlen(RENDERFARM_FS_PREFIX)))
 175         {
 176                 renderfarm_fs_global->lock();
 177                 result = renderfarm_fs_global->remove(__filename);
 178                 renderfarm_fs_global->unlock();
 179         }
 180         else
 181                 result = (*func)(__filename);
 182
 183         return result;
 184 }
 185
 186 int rename (__const char *__old, __const char *__new)
 187 {
 188         static int (*func)(__const char *, __const char *) = 0;
 189         int result = 0;
 190         if(!func)
 191         func = (int(*)(__const char *, __const char *))dlsym(RTLD_NEXT, "rename");
 192 //printf("rename\n");
 193
 194 // VFS path
 195         if(!strncmp(__old, RENDERFARM_FS_PREFIX, strlen(RENDERFARM_FS_PREFIX)))
 196         {
 197                 renderfarm_fs_global->lock();
 198                 result = renderfarm_fs_global->rename(__old, __new);
 199                 renderfarm_fs_global->unlock();
 200         }
 201         else
 202                 result = (*func)(__old, __new);
 203
 204         return result;
 205 }
 206
 207 int fgetc (FILE *__stream)
 208 {
 209         static int (*func)(FILE *) = 0;
 210         int result = 0, done = 0;
 211         if(!func)
 212         func = (int(*)(FILE *))dlsym(RTLD_NEXT, "fgetc");
 213 //printf("fgetc\n");
 214
 215         if(renderfarm_fs_global)
 216         {
 217                 renderfarm_fs_global->lock();
 218                 if(renderfarm_fs_global->is_open(__stream))
 219                 {
 220                         result = renderfarm_fs_global->fgetc(__stream);
 221                         done = 1;
 222                 }
 223                 renderfarm_fs_global->unlock();
 224         }
 225
 226         if(!done) result = (*func)(__stream);
 227         return result;
 228 }
 229
 230 int getc (FILE *__stream)
 231 {
 232         return fgetc(__stream);
 233 }
 234
 235 int fputc (int __c, FILE *__stream)
 236 {
 237         static int (*func)(int, FILE *) = 0;
 238         int result = 0, done = 0;
 239         if(!func)
 240         func = (int(*)(int, FILE *))dlsym(RTLD_NEXT, "fputc");
 241 //printf("fputc\n");
 242
 243         if(renderfarm_fs_global)
 244         {
 245                 renderfarm_fs_global->lock();
 246                 if(renderfarm_fs_global->is_open(__stream))
 247                 {
 248                         result = renderfarm_fs_global->fputc(__c, __stream);
 249                         done = 1;
 250                 }
 251                 renderfarm_fs_global->unlock();
 252         }
 253
 254         if(!done) result = (*func)(__c, __stream);
 255         return result;
 256 }
 257
 258 int putc (int __c, FILE *__stream)
 259 {
 260         return fputc(__c, __stream);
 261 }
 262
 263 size_t fread (void *__restrict __ptr, size_t __size,
 264                      size_t __n, FILE *__restrict __stream)
 265 {
 266         static int (*func)(void *, size_t, size_t, FILE *) = 0;
 267         size_t result = 0;
 268         int done = 0;
 269         if(!func)
 270         func = (int(*)(void *, size_t, size_t, FILE *))dlsym(RTLD_NEXT, "fread");
 271 //printf("fread\n");
 272
 273         if(renderfarm_fs_global)
 274         {
 275                 renderfarm_fs_global->lock();
 276                 if(renderfarm_fs_global->is_open(__stream))
 277                 {
 278                         result = renderfarm_fs_global->fread(__ptr, __size, __n, __stream);
 279                         done = 1;
 280                 }
 281                 renderfarm_fs_global->unlock();
 282         }
 283
 284         if(!done) result = (*func)(__ptr, __size, __n, __stream);
 285
 286         return result;
 287 }
 288
 289 size_t fwrite (__const void *__restrict __ptr, size_t __size,
 290                       size_t __n, FILE *__restrict __s)
 291 {
 292         static int (*func)(__const void *, size_t, size_t, FILE *) = 0;
 293         size_t result = 0;
 294         int done = 0;
 295         if(!func)
 296         func = (int(*)(__const void *, size_t, size_t, FILE *))dlsym(RTLD_NEXT, "fwrite");
 297 //printf("fwrite\n");
 298
 299         if(renderfarm_fs_global)
 300         {
 301                 renderfarm_fs_global->lock();
 302                 if(renderfarm_fs_global->is_open(__s))
 303                 {
 304                         result = renderfarm_fs_global->fwrite(__ptr, __size, __n, __s);
 305                         done = 1;
 306                 }
 307                 renderfarm_fs_global->unlock();
 308         }
 309
 310         if(!done) result = (*func)(__ptr, __size, __n, __s);
 311
 312         return result;
 313 }
 314
 315 int fseek (FILE *__stream, long int __off, int __whence)
 316 {
 317         static int (*func)(FILE *, long int, int) = 0;
 318         int result = 0;
 319         int done = 0;
 320         if(!func)
 321         func = (int(*)(FILE *, long int, int))dlsym(RTLD_NEXT, "fseek");
 322 //printf("fseek\n");
 323
 324         if(renderfarm_fs_global)
 325         {
 326                 renderfarm_fs_global->lock();
 327                 if(renderfarm_fs_global->is_open(__stream))
 328                 {
 329                         result = renderfarm_fs_global->fseek(__stream, __off, __whence);
 330                         done = 1;
 331                 }
 332                 renderfarm_fs_global->unlock();
 333         }
 334
 335         if(!done) result = (*func)(__stream, __off, __whence);
 336
 337         return result;
 338 }
 339
 340 int fseeko64 (FILE *__stream, __off64_t __off, int __whence)
 341 {
 342         static int (*func)(FILE *, __off64_t, int) = 0;
 343         int result = 0;
 344         int done = 0;
 345         if(!func)
 346         func = (int(*)(FILE *, __off64_t, int))dlsym(RTLD_NEXT, "fseeko64");
 347 //printf("fseeko64\n");
 348
 349         if(renderfarm_fs_global)
 350         {
 351                 renderfarm_fs_global->lock();
 352                 if(renderfarm_fs_global->is_open(__stream))
 353                 {
 354                         result = renderfarm_fs_global->fseek(__stream, __off, __whence);
 355                         done = 1;
 356                 }
 357                 renderfarm_fs_global->unlock();
 358         }
 359
 360         if(!done) result = (*func)(__stream, __off, __whence);
 361
 362         return result;
 363 }
 364
 365 long int ftell (FILE *__stream)
 366 {
 367         static long int (*func)(FILE *) = 0;
 368         int result = 0;
 369         int done = 0;
 370         if(!func)
 371         func = (long int(*)(FILE *))dlsym(RTLD_NEXT, "ftell");
 372 //printf("ftell\n");
 373
 374         if(renderfarm_fs_global)
 375         {
 376                 renderfarm_fs_global->lock();
 377                 if(renderfarm_fs_global->is_open(__stream))
 378                 {
 379                         result = renderfarm_fs_global->ftell(__stream);
 380                         done = 1;
 381                 }
 382                 renderfarm_fs_global->unlock();
 383         }
 384
 385         if(!done) result = (*func)(__stream);
 386
 387         return result;
 388 }
 389
 390 __off64_t ftello64 (FILE *__stream)
 391 {
 392         static __off64_t (*func)(FILE *) = 0;
 393         __off64_t result = 0;
 394         int done = 0;
 395         if(!func)
 396         func = (__off64_t(*)(FILE *))dlsym(RTLD_NEXT, "ftello64");
 397
 398         if(renderfarm_fs_global)
 399         {
 400                 renderfarm_fs_global->lock();
 401                 if(renderfarm_fs_global->is_open(__stream))
 402                 {
 403                         result = renderfarm_fs_global->ftell(__stream);
 404                         done = 1;
 405                 }
 406                 renderfarm_fs_global->unlock();
 407         }
 408
 409         if(!done) result = (*func)(__stream);
 410
 411         return result;
 412         return (*func)(__stream);
 413 }
 414
 415
 416 // Glibc inlines the stat functions and redirects them to __xstat functions
 417 int __xstat (int __ver, __const char *__filename,
 418                     struct stat *__stat_buf)
 419 {
 420         static int (*func)(int __ver, __const char *__filename,
 421                     struct stat *__stat_buf) = 0;
 422
 423 // This pointer is meaningless except on the server.
 424         int result = 0;
 425
 426         if (!func)
 427         func = (int(*)(int __ver, __const char *__filename,
 428                     struct stat *__stat_buf))dlsym(RTLD_NEXT, "__xstat");
 429
 430 // VFS path
 431         if(!strncmp(__filename, RENDERFARM_FS_PREFIX, strlen(RENDERFARM_FS_PREFIX)))
 432         {
 433                 renderfarm_fs_global->lock();
 434                 result = renderfarm_fs_global->stat(__filename, __stat_buf);
 435                 renderfarm_fs_global->unlock();
 436         }
 437         else
 438         {
 439                 result = (*func)(__ver, __filename, __stat_buf);
 440         }
 441
 442     return result;
 443 }
 444
 445 int __xstat64 (int __ver, __const char *__filename,
 446                       struct stat64 *__stat_buf)
 447 {
 448         static int (*func)(int __ver, __const char *__restrict __file,
 449                  struct stat64 *__restrict __buf) = 0;
 450 // This pointer is meaningless except on the server.
 451         int result = 0;
 452
 453         if (!func)
 454         func = (int(*)(int __ver, __const char *__restrict __file,
 455                                         struct stat64 *__restrict __buf))dlsym(RTLD_NEXT, "__xstat64");
 456
 457 // VFS path
 458         if(!strncmp(__filename, RENDERFARM_FS_PREFIX, strlen(RENDERFARM_FS_PREFIX)))
 459         {
 460                 renderfarm_fs_global->lock();
 461                 result = renderfarm_fs_global->stat64(__filename, __stat_buf);
 462                 renderfarm_fs_global->unlock();
 463         }
 464         else
 465                 result = (*func)(__ver, __filename, __stat_buf);
 466
 467     return result;
 468 }
 469
 470 char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
 471 {
 472         static char* (*func)(char *__restrict __s, int __n, FILE *__restrict __stream) = 0;
 473         char *result = 0;
 474         int done = 0;
 475         if(!func)
 476         func = (char*(*)(char *__restrict __s, int __n, FILE *__restrict __stream))dlsym(RTLD_NEXT, "fgets");
 477
 478         if(renderfarm_fs_global)
 479         {
 480                 renderfarm_fs_global->lock();
 481                 if(renderfarm_fs_global->is_open(__stream))
 482                 {
 483                         result = renderfarm_fs_global->fgets(__s, __n, __stream);
 484                         done = 1;
 485                 }
 486                 renderfarm_fs_global->unlock();
 487         }
 488
 489         if(!done) result = (*func)(__s, __n, __stream);
 490
 491         return result;
 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 RenderFarmFSClient::RenderFarmFSClient(RenderFarmClientThread *client)
 519 {
 520         mutex_lock = new Mutex;
 521         this->client = client;
 522 }
 523
 524 RenderFarmFSClient::~RenderFarmFSClient()
 525 {
 526         delete mutex_lock;
 527 // Must not access filesystem until we get here
 528         renderfarm_fs_global = 0;
 529 }
 530
 531 void RenderFarmFSClient::initialize()
 532 {
 533         renderfarm_fs_global = this;
 534 }
 535
 536 void RenderFarmFSClient::lock()
 537 {
 538         mutex_lock->lock();
 539 }
 540
 541 void RenderFarmFSClient::unlock()
 542 {
 543         mutex_lock->unlock();
 544 }
 545
 546 int RenderFarmFSClient::is_open(FILE *ptr)
 547 {
 548         for(int i = 0; i < files.total; i++)
 549                 if(files.values[i] == ptr) return 1;
 550         return 0;
 551 }
 552
 553 void RenderFarmFSClient::set_open(FILE *ptr)
 554 {
 555         files.append(ptr);
 556 }
 557
 558 void RenderFarmFSClient::unset_open(FILE *ptr)
 559 {
 560         files.remove(ptr);
 561 }
 562
 563
 564 FILE* RenderFarmFSClient::fopen(const char *path, const char *mode)
 565 {
 566         int len = strlen(path) - strlen(RENDERFARM_FS_PREFIX) + strlen(mode) + 2;
 567         char *buffer = new char[len];
 568         FILE *file = 0;
 569         strcpy(buffer, path + strlen(RENDERFARM_FS_PREFIX));
 570         strcpy(buffer + strlen(buffer) + 1, mode);
 571
 572
 573         client->lock();
 574         if(!client->send_request_header(RENDERFARM_FOPEN,
 575                 len))
 576         {
 577                 if(client->write_socket(buffer, len, RENDERFARM_TIMEOUT) == len)
 578                 {
 579                         unsigned char data[8];
 580                         if(client->read_socket((char*)data, 8, RENDERFARM_TIMEOUT) == 8)
 581                         {
 582                                 int64_t file_int64 = READ_INT64(data);
 583                                 file = (FILE*)Units::int64_to_ptr(file_int64);
 584                         }
 585                 }
 586         }
 587         client->unlock();
 588         if(file) set_open(file);
 589         delete [] buffer;
 590
 591 if(DEBUG)
 592 printf("RenderFarmFSClient::fopen path=%s mode=%s file=%p\n", path, mode, file);
 593
 594         return file;
 595 }
 596
 597 int RenderFarmFSClient::fclose(FILE *file)
 598 {
 599         int result = 0;
 600         unsigned char datagram[8];
 601         int i = 0;
 602         int file_int64 = Units::ptr_to_int64(file);
 603         STORE_INT64(file_int64);
 604
 605         client->lock();
 606         if(!client->send_request_header(RENDERFARM_FCLOSE, 8))
 607         {
 608                 if(client->write_socket((char*)datagram, 8, RENDERFARM_TIMEOUT) == 8)
 609                         result = 0;
 610                 else
 611                         result = -1;
 612         }
 613         else
 614                 result = -1;
 615         client->unlock();
 616         unset_open(file);
 617 if(DEBUG)
 618 printf("RenderFarmFSClient::fclose file=%p\n", file);
 619         return result;
 620 }
 621
 622 int RenderFarmFSClient::fileno(FILE *file)
 623 {
 624         int result = 0;
 625         unsigned char datagram[8];
 626         int i = 0;
 627         int file_int64 = Units::ptr_to_int64(file);
 628         STORE_INT64(file_int64);
 629
 630         client->lock();
 631         if(!client->send_request_header(RENDERFARM_FILENO, 8))
 632         {
 633                 if(client->write_socket((char*)datagram, 8, RENDERFARM_TIMEOUT) == 8)
 634                 {
 635                         unsigned char data[4];
 636                         if(client->read_socket((char*)data, 4, RENDERFARM_TIMEOUT) == 4)
 637                         {
 638                                 result = READ_INT32(data);
 639                         }
 640                 }
 641                 else
 642                         result = -1;
 643         }
 644         else
 645                 result = -1;
 646         client->unlock();
 647 if(DEBUG)
 648 printf("RenderFarmFSClient::fileno file=%p result=%d\n", file, result);
 649         return result;
 650 }
 651
 652 int RenderFarmFSClient::remove (__const char *__filename)
 653 {
 654         int result = 0;
 655         int len = strlen(__filename) + 1;
 656         char *datagram = new char[len];
 657         strcpy(datagram, __filename);
 658
 659         client->lock();
 660         if(!client->send_request_header(RENDERFARM_REMOVE, len))
 661         {
 662                 if(client->write_socket(datagram, len, RENDERFARM_TIMEOUT) != len)
 663                         result = -1;
 664                 else
 665                         result = 0;
 666         }
 667         else
 668                 result = -1;
 669         client->unlock();
 670
 671         delete [] datagram;
 672 if(DEBUG)
 673 printf("RenderFarmFSClient::remove path=%s\n", __filename);
 674         return result;
 675 }
 676
 677 int RenderFarmFSClient::rename (__const char *__old, __const char *__new)
 678 {
 679         int result = 0;
 680         int len = strlen(__old) + 1 + strlen(__new) + 1;
 681         char *datagram = new char[len];
 682         strcpy(datagram, __old);
 683         strcpy(datagram + strlen(__old) + 1, __new);
 684
 685         client->lock();
 686         if(!client->send_request_header(RENDERFARM_RENAME, len))
 687         {
 688                 if(client->write_socket(datagram, len, RENDERFARM_TIMEOUT) != len)
 689                         result = -1;
 690                 else
 691                         result = 0;
 692         }
 693         else
 694                 result = -1;
 695         client->unlock();
 696
 697         delete [] datagram;
 698 if(DEBUG)
 699 printf("RenderFarmFSClient::remove old=%s new=%s\n", __old, __new);
 700         return result;
 701 }
 702
 703 int RenderFarmFSClient::fgetc (FILE *__stream)
 704 {
 705         int result = 0;
 706         unsigned char datagram[8];
 707         int i = 0;
 708         int file_int64 = Units::ptr_to_int64(__stream);
 709         STORE_INT64(file_int64);
 710
 711         client->lock();
 712         if(!client->send_request_header(RENDERFARM_FGETC, 8))
 713         {
 714                 if(client->write_socket((char*)datagram, 8, RENDERFARM_TIMEOUT) != 8)
 715                         result = -1;
 716                 else
 717                 {
 718                         if(client->read_socket((char*)datagram, 1, RENDERFARM_TIMEOUT) != 1)
 719                                 result = -1;
 720                         else
 721                         {
 722                                 result = datagram[0];
 723                         }
 724                 }
 725         }
 726         else
 727                 result = -1;
 728         client->unlock();
 729 if(DEBUG)
 730 printf("RenderFarmFSClient::fgetc file=%p result=%02x\n", __stream, result);
 731
 732         return result;
 733 }
 734
 735 int RenderFarmFSClient::fputc (int __c, FILE *__stream)
 736 {
 737         int result = 0;
 738         unsigned char datagram[9];
 739         int i = 0;
 740         int file_int64 = Units::ptr_to_int64(__stream);
 741         STORE_INT64(file_int64);
 742         datagram[i++] = __c;
 743
 744         client->lock();
 745         if(!client->send_request_header(RENDERFARM_FPUTC, 9))
 746         {
 747                 if(client->write_socket((char*)datagram, 9, RENDERFARM_TIMEOUT) != 9)
 748                         result = -1;
 749                 else
 750                         result = __c;
 751         }
 752         else
 753                 result = -1;
 754         client->unlock();
 755 if(DEBUG)
 756 printf("RenderFarmFSClient::fputc file=%p result=%02x\n", __stream, result);
 757
 758         return result;
 759 }
 760
 761 char* RenderFarmFSClient::fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
 762 {
 763         char *result = 0;
 764         int bytes = 0;
 765         unsigned char datagram[12];
 766         int i = 0;
 767         int file_int64 = Units::ptr_to_int64(__stream);
 768         STORE_INT64(file_int64);
 769         STORE_INT32(__n);
 770
 771         client->lock();
 772         if(!client->send_request_header(RENDERFARM_FGETS, 12))
 773         {
 774                 if(client->write_socket((char*)datagram, 12, RENDERFARM_TIMEOUT) == 12)
 775                 {
 776 // fgets bytes to follow
 777                         if(client->read_socket((char*)datagram, 4, RENDERFARM_TIMEOUT) == 4)
 778                         {
 779 // fgets data
 780                                 bytes = READ_INT32(datagram);
 781                                 if(bytes)
 782                                 {
 783                                         if(client->read_socket((char*)__s, bytes, RENDERFARM_TIMEOUT) == bytes)
 784                                         {
 785                                                 result = __s;
 786                                         }
 787                                 }
 788                         }
 789                 }
 790         }
 791         else
 792                 result = 0;
 793         client->unlock();
 794 if(DEBUG)
 795 printf("RenderFarmFSClient::fgets file=%p string=%p size=%d bytes=%p\n",
 796 __stream, __s, bytes, bytes);
 797
 798         return result;
 799 }
 800
 801
 802 size_t RenderFarmFSClient::fread (void *__restrict __ptr, size_t __size,
 803                      size_t __n, FILE *__restrict __stream)
 804 {
 805         size_t result = 0;
 806         unsigned char datagram[16];
 807         int i = 0;
 808         int file_int64 = Units::ptr_to_int64(__stream);
 809         STORE_INT64(file_int64);
 810         STORE_INT32(__size);
 811         STORE_INT32(__n);
 812
 813         client->lock();
 814         if(!client->send_request_header(RENDERFARM_FREAD, 16))
 815         {
 816                 if(client->write_socket((char*)datagram, 16, RENDERFARM_TIMEOUT) != 16)
 817                         result = 0;
 818                 else
 819                 {
 820 // fread result
 821                         if(client->read_socket((char*)datagram, 4, RENDERFARM_TIMEOUT) != 4)
 822                                 result = 0;
 823                         else
 824                         {
 825 // fread data
 826                                 result = READ_INT32(datagram);
 827                                 if(client->read_socket((char*)__ptr, __size * result, RENDERFARM_TIMEOUT) !=
 828                                         __size * result)
 829                                         result = 0;
 830                         }
 831                 }
 832         }
 833         else
 834                 result = 0;
 835         client->unlock();
 836 if(DEBUG)
 837 printf("RenderFarmFSClient::fread file=%p size=%d num=%d result=%d\n",
 838 __stream, __size, __n, result);
 839
 840         return result;
 841 }
 842
 843 size_t RenderFarmFSClient::fwrite (__const void *__restrict __ptr, size_t __size,
 844                       size_t __n, FILE *__restrict __s)
 845 {
 846         size_t result = 0;
 847         unsigned char datagram[16];
 848         int i = 0;
 849         int file_int64 = Units::ptr_to_int64(__s);
 850         STORE_INT64(file_int64);
 851         STORE_INT32(__size);
 852         STORE_INT32(__n);
 853
 854         client->lock();
 855         if(!client->send_request_header(RENDERFARM_FWRITE, 16))
 856         {
 857                 if(client->write_socket((char*)datagram, 16, RENDERFARM_TIMEOUT) != 16)
 858                         result = 0;
 859                 else
 860                 {
 861 // fwrite data
 862                         if(client->write_socket((char*)__ptr, __size * __n, RENDERFARM_TIMEOUT) !=
 863                                 __size * __n)
 864                         result = 0;
 865                         else
 866                         {
 867 // fwrite result
 868                                 if(client->read_socket((char*)datagram, 4, RENDERFARM_TIMEOUT) != 4)
 869                                         result = 0;
 870                                 else
 871                                 {
 872                                         result = READ_INT32(datagram);
 873                                 }
 874                         }
 875                 }
 876         }
 877         else
 878                 result = 0;
 879         client->unlock();
 880 if(DEBUG)
 881 printf("RenderFarmFSClient::fwrite file=%p size=%d num=%d result=%d\n",
 882 __s, __size, __n, result);
 883
 884         return result;
 885 }
 886
 887 int RenderFarmFSClient::fseek (FILE *__stream, int64_t __off, int __whence)
 888 {
 889         int result = 0;
 890         unsigned char datagram[20];
 891         int i = 0;
 892         int file_int64 = Units::ptr_to_int64(__stream);
 893         STORE_INT64(file_int64);
 894         STORE_INT64(__off);
 895         STORE_INT32(__whence);
 896
 897         client->lock();
 898         if(!client->send_request_header(RENDERFARM_FSEEK, 20))
 899         {
 900                 if(client->write_socket((char*)datagram, 20, RENDERFARM_TIMEOUT) != 20)
 901                         result = -1;
 902                 else
 903                 {
 904                         if(client->read_socket((char*)datagram, 4, RENDERFARM_TIMEOUT) != 4)
 905                                 result = -1;
 906                         else
 907                                 result = READ_INT32(datagram);
 908                 }
 909         }
 910         else
 911                 result = -1;
 912         client->unlock();
 913 if(DEBUG)
 914 printf("RenderFarmFSClient::fseek stream=%p offset=%lld whence=%d result=%d\n",
 915 __stream, __off, __whence, result);
 916         return result;
 917 }
 918
 919 int64_t RenderFarmFSClient::ftell (FILE *__stream)
 920 {
 921         int64_t result = 0;
 922         unsigned char datagram[8];
 923         int i = 0;
 924         int file_int64 = Units::ptr_to_int64(__stream);
 925         STORE_INT64(file_int64);
 926
 927         client->lock();
 928         if(!client->send_request_header(RENDERFARM_FTELL, 8))
 929         {
 930                 if(client->write_socket((char*)datagram, 8, RENDERFARM_TIMEOUT) != 8)
 931                         result = -1;
 932                 else
 933                 {
 934                         if(client->read_socket((char*)datagram, 8, RENDERFARM_TIMEOUT) != 8)
 935                                 result = -1;
 936                         else
 937                                 result = READ_INT64(datagram);
 938                 }
 939         }
 940         else
 941                 result = -1;
 942         client->unlock();
 943 if(DEBUG)
 944 printf("RenderFarmFSClient::fseek stream=%p result=%lld\n",
 945 __stream, result);
 946         return result;
 947 }
 948
 949 int RenderFarmFSClient::stat (__const char *__restrict __file,
 950                  struct stat *__restrict __buf)
 951 {
 952         int len = strlen(__file) + 1;
 953         int result = 0;
 954
 955         client->lock();
 956         if(!client->send_request_header(RENDERFARM_STAT, len))
 957         {
 958                 if(client->write_socket((char*)__file + strlen(RENDERFARM_FS_PREFIX), len, RENDERFARM_TIMEOUT) == len)
 959                 {
 960                         if(client->read_socket((char*)__buf, sizeof(struct stat), RENDERFARM_TIMEOUT) == sizeof(struct stat))
 961                         {
 962                                 ;
 963                         }
 964                         else
 965                                 result = 1;
 966                 }
 967                 else
 968                         result = 1;
 969         }
 970         else
 971                 result = 1;
 972         client->unlock();
 973 if(DEBUG)
 974 printf("RenderFarmFSClient::stat path=%s\n", __file);
 975
 976         return result;
 977 }
 978
 979
 980
 981 int RenderFarmFSClient::stat64 (__const char *__restrict __file,
 982                    struct stat64 *__restrict __buf)
 983 {
 984         int len = strlen(__file) + 1;
 985         int result = 0;
 986
 987         client->lock();
 988         if(!client->send_request_header(RENDERFARM_STAT64, len))
 989         {
 990                 if(client->write_socket((char*)__file + strlen(RENDERFARM_FS_PREFIX), len, RENDERFARM_TIMEOUT) == len)
 991                 {
 992                         if(client->read_socket((char*)__buf, sizeof(struct stat64), RENDERFARM_TIMEOUT) == sizeof(struct stat64))
 993                         {
 994                                 ;
 995                         }
 996                         else
 997                                 result = 1;
 998                 }
 999                 else
1000                         result = 1;
1001         }
1002         else
1003                 result = 1;
1004         client->unlock();
1005 if(DEBUG)
1006 printf("RenderFarmFSClient::stat64 path=%s\n", __file);
1007
1008         return result;
1009 }
1010
1011
1012