| 359 | |
| 360 | #if !defined(SFX_MODULE) |
| 361 | void CalcFileSum(File *SrcFile,uint *CRC32,byte *Blake2,uint Threads,int64 Size,uint Flags) |
| 362 | { |
| 363 | int64 SavePos=SrcFile->Tell(); |
| 364 | #ifndef SILENT |
| 365 | int64 FileLength=Size==INT64NDF ? SrcFile->FileLength() : Size; |
| 366 | #endif |
| 367 | |
| 368 | if ((Flags & (CALCFSUM_SHOWTEXT|CALCFSUM_SHOWPERCENT))!=0) |
| 369 | uiMsg(UIEVENT_FILESUMSTART); |
| 370 | |
| 371 | if ((Flags & CALCFSUM_CURPOS)==0) |
| 372 | SrcFile->Seek(0,SEEK_SET); |
| 373 | |
| 374 | const size_t BufSize=0x100000; |
| 375 | Array<byte> Data(BufSize); |
| 376 | |
| 377 | |
| 378 | DataHash HashCRC,HashBlake2; |
| 379 | HashCRC.Init(HASH_CRC32,Threads); |
| 380 | HashBlake2.Init(HASH_BLAKE2,Threads); |
| 381 | |
| 382 | int64 BlockCount=0; |
| 383 | int64 TotalRead=0; |
| 384 | while (true) |
| 385 | { |
| 386 | size_t SizeToRead; |
| 387 | if (Size==INT64NDF) // If we process the entire file. |
| 388 | SizeToRead=BufSize; // Then always attempt to read the entire buffer. |
| 389 | else |
| 390 | SizeToRead=(size_t)Min((int64)BufSize,Size); |
| 391 | int ReadSize=SrcFile->Read(&Data[0],SizeToRead); |
| 392 | if (ReadSize==0) |
| 393 | break; |
| 394 | TotalRead+=ReadSize; |
| 395 | |
| 396 | if ((++BlockCount & 0xf)==0) |
| 397 | { |
| 398 | #ifndef SILENT |
| 399 | if ((Flags & CALCFSUM_SHOWPROGRESS)!=0) |
| 400 | uiExtractProgress(TotalRead,FileLength,TotalRead,FileLength); |
| 401 | else |
| 402 | { |
| 403 | if ((Flags & CALCFSUM_SHOWPERCENT)!=0) |
| 404 | uiMsg(UIEVENT_FILESUMPROGRESS,ToPercent(TotalRead,FileLength)); |
| 405 | } |
| 406 | #endif |
| 407 | Wait(); |
| 408 | } |
| 409 | |
| 410 | if (CRC32!=NULL) |
| 411 | HashCRC.Update(&Data[0],ReadSize); |
| 412 | if (Blake2!=NULL) |
| 413 | HashBlake2.Update(&Data[0],ReadSize); |
| 414 | |
| 415 | if (Size!=INT64NDF) |
| 416 | Size-=ReadSize; |
| 417 | } |
| 418 | SrcFile->Seek(SavePos,SEEK_SET); |