* adfCreateNextFileBlock * */
| 523 | * |
| 524 | */ |
| 525 | SECTNUM adfCreateNextFileBlock(struct File* file) |
| 526 | { |
| 527 | SECTNUM nSect, extSect; |
| 528 | struct bOFSDataBlock *data; |
| 529 | unsigned int blockSize; |
| 530 | int i; |
| 531 | /*puts("adfCreateNextFileBlock");*/ |
| 532 | blockSize = file->volume->datablockSize; |
| 533 | data = file->currentData; |
| 534 | |
| 535 | /* the first data blocks pointers are inside the file header block */ |
| 536 | if (file->nDataBlock<MAX_DATABLK) { |
| 537 | nSect = adfGet1FreeBlock(file->volume); |
| 538 | if (nSect==-1) return -1; |
| 539 | /*printf("adfCreateNextFileBlock fhdr %ld\n",nSect);*/ |
| 540 | if (file->nDataBlock==0) |
| 541 | file->fileHdr->firstData = nSect; |
| 542 | file->fileHdr->dataBlocks[MAX_DATABLK-1-file->nDataBlock] = nSect; |
| 543 | file->fileHdr->highSeq++; |
| 544 | } |
| 545 | else { |
| 546 | /* one more sector is needed for one file extension block */ |
| 547 | if ((file->nDataBlock%MAX_DATABLK)==0) { |
| 548 | extSect = adfGet1FreeBlock(file->volume); |
| 549 | /*printf("extSect=%ld\n",extSect);*/ |
| 550 | if (extSect==-1) return -1; |
| 551 | |
| 552 | /* the future block is the first file extension block */ |
| 553 | if (file->nDataBlock==MAX_DATABLK) { |
| 554 | file->currentExt=(struct bFileExtBlock*)malloc(sizeof(struct bFileExtBlock)); |
| 555 | if (!file->currentExt) { |
| 556 | adfSetBlockFree(file->volume, extSect); |
| 557 | (*adfEnv.eFct)("adfCreateNextFileBlock : malloc"); |
| 558 | return -1; |
| 559 | } |
| 560 | file->fileHdr->extension = extSect; |
| 561 | } |
| 562 | |
| 563 | /* not the first : save the current one, and link it with the future */ |
| 564 | if (file->nDataBlock>=2*MAX_DATABLK) { |
| 565 | file->currentExt->extension = extSect; |
| 566 | /*printf ("write ext=%d\n",file->currentExt->headerKey);*/ |
| 567 | adfWriteFileExtBlock(file->volume, file->currentExt->headerKey, |
| 568 | file->currentExt); |
| 569 | } |
| 570 | |
| 571 | /* initializes a file extension block */ |
| 572 | for(i=0; i<MAX_DATABLK; i++) |
| 573 | file->currentExt->dataBlocks[i] = 0L; |
| 574 | file->currentExt->headerKey = extSect; |
| 575 | file->currentExt->parent = file->fileHdr->headerKey; |
| 576 | file->currentExt->highSeq = 0L; |
| 577 | file->currentExt->extension = 0L; |
| 578 | file->posInExtBlk = 0L; |
| 579 | /*printf("extSect=%ld\n",extSect);*/ |
| 580 | } |
| 581 | nSect = adfGet1FreeBlock(file->volume); |
| 582 | if (nSect==-1) |
no test coverage detected