blob: a0e5b19a03adc6ff34fecc1b6ff6c056a88523e6 [file] [log] [blame]
static const uint MaxVolumes=65535;
RecVolumes5::RecVolumes5(bool TestOnly)
{
RealBuf=NULL;
RealReadBuffer=NULL;
DataCount=0;
RecCount=0;
TotalCount=0;
RecBufferSize=0;
for (uint I=0;I<ASIZE(ThreadData);I++)
{
ThreadData[I].RecRSPtr=this;
ThreadData[I].RS=NULL;
}
if (TestOnly)
{
#ifdef RAR_SMP
RecThreadPool=NULL;
#endif
}
else
{
#ifdef RAR_SMP
RecThreadPool=CreateThreadPool();
#endif
RealBuf=new byte[TotalBufferSize+SSE_ALIGNMENT];
Buf=(byte *)ALIGN_VALUE(RealBuf,SSE_ALIGNMENT);
}
}
RecVolumes5::~RecVolumes5()
{
delete[] RealBuf;
delete[] RealReadBuffer;
for (uint I=0;I<RecItems.Size();I++)
delete RecItems[I].f;
for (uint I=0;I<ASIZE(ThreadData);I++)
delete ThreadData[I].RS;
#ifdef RAR_SMP
DestroyThreadPool(RecThreadPool);
#endif
}
#ifdef RAR_SMP
THREAD_PROC(RecThreadRS)
{
RecRSThreadData *td=(RecRSThreadData *)Data;
td->RecRSPtr->ProcessAreaRS(td);
}
#endif
void RecVolumes5::ProcessRS(RAROptions *Cmd,uint DataNum,const byte *Data,uint MaxRead,bool Encode)
{
/*
RSCoder16 RS;
RS.Init(DataCount,RecCount,Encode ? NULL:ValidFlags);
uint Count=Encode ? RecCount : MissingVolumes;
for (uint I=0;I<Count;I++)
RS.UpdateECC(DataNum, I, Data, Buf+I*RecBufferSize, MaxRead);
*/
#ifdef RAR_SMP
uint ThreadNumber=Cmd->Threads;
#else
uint ThreadNumber=1;
#endif
const uint MinThreadBlock=0x1000;
ThreadNumber=Min(ThreadNumber,MaxRead/MinThreadBlock);
if (ThreadNumber<1)
ThreadNumber=1;
uint ThreadDataSize=MaxRead/ThreadNumber;
ThreadDataSize+=(ThreadDataSize&1); // Must be even for 16-bit RS coder.
#ifdef USE_SSE
ThreadDataSize=ALIGN_VALUE(ThreadDataSize,SSE_ALIGNMENT); // Alignment for SSE operations.
#endif
if (ThreadDataSize<MinThreadBlock)
ThreadDataSize=MinThreadBlock;
for (size_t I=0,CurPos=0;I<ThreadNumber && CurPos<MaxRead;I++)
{
RecRSThreadData *td=ThreadData+I;
if (td->RS==NULL)
{
td->RS=new RSCoder16;
td->RS->Init(DataCount,RecCount,Encode ? NULL:ValidFlags);
}
td->DataNum=DataNum;
td->Data=Data;
td->Encode=Encode;
td->StartPos=CurPos;
size_t EndPos=CurPos+ThreadDataSize;
if (EndPos>MaxRead || I==ThreadNumber-1)
EndPos=MaxRead;
td->Size=EndPos-CurPos;
CurPos=EndPos;
#ifdef RAR_SMP
if (ThreadNumber>1)
RecThreadPool->AddTask(RecThreadRS,(void*)td);
else
ProcessAreaRS(td);
#else
ProcessAreaRS(td);
#endif
}
#ifdef RAR_SMP
RecThreadPool->WaitDone();
#endif // RAR_SMP
}
void RecVolumes5::ProcessAreaRS(RecRSThreadData *td)
{
uint Count=td->Encode ? RecCount : MissingVolumes;
for (uint I=0;I<Count;I++)
td->RS->UpdateECC(td->DataNum, I, td->Data+td->StartPos, Buf+I*RecBufferSize+td->StartPos, td->Size);
}
bool RecVolumes5::Restore(RAROptions *Cmd,const wchar *Name,bool Silent)
{
wchar ArcName[NM];
wcsncpyz(ArcName,Name,ASIZE(ArcName));
wchar *Num=GetVolNumPart(ArcName);
while (Num>ArcName && IsDigit(*(Num-1)))
Num--;
if (Num==ArcName)
return false; // Numeric part is missing or entire volume name is numeric, not possible for RAR or REV volume.
wcsncpyz(Num,L"*.*",ASIZE(ArcName)-(Num-ArcName));
wchar FirstVolName[NM];
*FirstVolName=0;
int64 RecFileSize=0;
FindFile VolFind;
VolFind.SetMask(ArcName);
FindData fd;
uint FoundRecVolumes=0;
while (VolFind.Next(&fd))
{
Wait();
Archive *Vol=new Archive(Cmd);
int ItemPos=-1;
if (Vol->WOpen(fd.Name))
{
if (CmpExt(fd.Name,L"rev"))
{
uint RecNum=ReadHeader(Vol,FoundRecVolumes==0);
if (RecNum!=0)
{
if (FoundRecVolumes==0)
RecFileSize=Vol->FileLength();
ItemPos=RecNum;
FoundRecVolumes++;
}
}
else
if (Vol->IsArchive(true) && (Vol->SFXSize>0 || CmpExt(fd.Name,L"rar")))
{
if (!Vol->Volume && !Vol->BrokenHeader)
{
uiMsg(UIERROR_NOTVOLUME,ArcName);
return false;
}
// We work with archive as with raw data file, so we do not want
// to spend time to QOpen I/O redirection.
Vol->QOpenUnload();
Vol->Seek(0,SEEK_SET);
// RAR volume found. Get its number, store the handle in appropriate
// array slot, clean slots in between if we had to grow the array.
wchar *Num=GetVolNumPart(fd.Name);
uint VolNum=0;
for (uint K=1;Num>=fd.Name && IsDigit(*Num);K*=10,Num--)
VolNum+=(*Num-'0')*K;
if (VolNum==0 || VolNum>MaxVolumes)
continue;
size_t CurSize=RecItems.Size();
if (VolNum>CurSize)
{
RecItems.Alloc(VolNum);
for (size_t I=CurSize;I<VolNum;I++)
RecItems[I].f=NULL;
}
ItemPos=VolNum-1;
if (*FirstVolName==0)
VolNameToFirstName(fd.Name,FirstVolName,ASIZE(FirstVolName),true);
}
}
if (ItemPos==-1)
delete Vol; // Skip found file, it is not RAR or REV volume.
else
if ((uint)ItemPos<RecItems.Size()) // Check if found more REV than needed.
{
// Store found RAR or REV volume.
RecVolItem *Item=RecItems+ItemPos;
Item->f=Vol;
Item->New=false;
wcsncpyz(Item->Name,fd.Name,ASIZE(Item->Name));
}
}
if (!Silent || FoundRecVolumes!=0)
uiMsg(UIMSG_RECVOLFOUND,FoundRecVolumes);
if (FoundRecVolumes==0)
return false;
uiMsg(UIMSG_RECVOLCALCCHECKSUM);
MissingVolumes=0;
for (uint I=0;I<TotalCount;I++)
{
RecVolItem *Item=&RecItems[I];
if (Item->f!=NULL)
{
uiMsg(UIMSG_STRING,Item->Name);
uint RevCRC;
CalcFileSum(Item->f,&RevCRC,NULL,Cmd->Threads,INT64NDF,CALCFSUM_CURPOS);
Item->Valid=RevCRC==Item->CRC;
if (!Item->Valid)
{
uiMsg(UIMSG_CHECKSUM,Item->Name);
// Close only corrupt REV volumes here. We'll close and rename corrupt
// RAR volumes later, if we'll know that recovery is possible.
if (I>=DataCount)
{
Item->f->Close();
Item->f=NULL;
FoundRecVolumes--;
}
}
}
if (I<DataCount && (Item->f==NULL || !Item->Valid))
MissingVolumes++;
}
uiMsg(UIMSG_RECVOLMISSING,MissingVolumes);
if (MissingVolumes==0)
{
uiMsg(UIERROR_RECVOLALLEXIST);
return false;
}
if (MissingVolumes>FoundRecVolumes)
{
uiMsg(UIERROR_RECVOLFOUND,FoundRecVolumes); // Intentionally not displayed in console mode.
uiMsg(UIERROR_RECVOLCANNOTFIX);
return false;
}
uiMsg(UIMSG_RECONSTRUCTING);
// Create missing and rename bad volumes.
uint64 MaxVolSize=0;
for (uint I=0;I<DataCount;I++)
{
RecVolItem *Item=&RecItems[I];
if (Item->FileSize>MaxVolSize)
MaxVolSize=Item->FileSize;
if (Item->f!=NULL && !Item->Valid)
{
Item->f->Close();
wchar NewName[NM];
wcsncpyz(NewName,Item->Name,ASIZE(NewName));
wcsncatz(NewName,L".bad",ASIZE(NewName));
uiMsg(UIMSG_BADARCHIVE,Item->Name);
uiMsg(UIMSG_RENAMING,Item->Name,NewName);
RenameFile(Item->Name,NewName);
delete Item->f;
Item->f=NULL;
}
if ((Item->New=(Item->f==NULL))) // Additional parentheses to avoid GCC warning.
{
wcsncpyz(Item->Name,FirstVolName,ASIZE(Item->Name));
uiMsg(UIMSG_CREATING,Item->Name);
uiMsg(UIEVENT_NEWARCHIVE,Item->Name);
File *NewVol=new File;
bool UserReject;
if (!FileCreate(Cmd,NewVol,Item->Name,ASIZE(Item->Name),&UserReject))
{
if (!UserReject)
ErrHandler.CreateErrorMsg(Item->Name);
ErrHandler.Exit(UserReject ? RARX_USERBREAK:RARX_CREATE);
}
NewVol->Prealloc(Item->FileSize);
Item->f=NewVol;
Item->New=true;
}
NextVolumeName(FirstVolName,ASIZE(FirstVolName),false);
}
int64 ProcessedSize=0;
int LastPercent=-1;
mprintf(L" ");
// Even though we already preliminary calculated missing volume number,
// let's do it again now, when we have the final and exact information.
MissingVolumes=0;
ValidFlags=new bool[TotalCount];
for (uint I=0;I<TotalCount;I++)
{
ValidFlags[I]=RecItems[I].f!=NULL && !RecItems[I].New;
if (I<DataCount && !ValidFlags[I])
MissingVolumes++;
}
// Size of per file buffer.
RecBufferSize=TotalBufferSize/MissingVolumes;
if ((RecBufferSize&1)==1) // Must be even for our RS16 codec.
RecBufferSize--;
#ifdef USE_SSE
RecBufferSize&=~(SSE_ALIGNMENT-1); // Align for SSE.
#endif
uint *Data=new uint[TotalCount];
RSCoder16 RS;
if (!RS.Init(DataCount,RecCount,ValidFlags))
{
delete[] ValidFlags;
delete[] Data;
return false; // Should not happen, we check parameter validity above.
}
RealReadBuffer=new byte[RecBufferSize+SSE_ALIGNMENT];
byte *ReadBuf=(byte *)ALIGN_VALUE(RealReadBuffer,SSE_ALIGNMENT);
while (true)
{
Wait();
int MaxRead=0;
for (uint I=0,J=DataCount;I<DataCount;I++)
{
uint VolNum=I;
if (!ValidFlags[I]) // If next RAR volume is missing or invalid.
{
while (!ValidFlags[J]) // Find next valid REV volume.
J++;
VolNum=J++; // Use next valid REV volume data instead of RAR.
}
RecVolItem *Item=RecItems+VolNum;
byte *B=&ReadBuf[0];
int ReadSize=0;
if (Item->f!=NULL && !Item->New)
ReadSize=Item->f->Read(B,RecBufferSize);
if (ReadSize!=RecBufferSize)
memset(B+ReadSize,0,RecBufferSize-ReadSize);
if (ReadSize>MaxRead)
MaxRead=ReadSize;
// We can have volumes of different size. Let's use data chunk
// for largest volume size.
uint DataToProcess=(uint)Min(RecBufferSize,MaxVolSize-ProcessedSize);
ProcessRS(Cmd,I,B,DataToProcess,false);
}
if (MaxRead==0)
break;
for (uint I=0,J=0;I<DataCount;I++)
if (!ValidFlags[I])
{
RecVolItem *Item=RecItems+I;
size_t WriteSize=(size_t)Min(MaxRead,Item->FileSize);
Item->f->Write(Buf+(J++)*RecBufferSize,WriteSize);
Item->FileSize-=WriteSize;
}
int CurPercent=ToPercent(ProcessedSize,RecFileSize);
if (!Cmd->DisablePercentage && CurPercent!=LastPercent)
{
uiProcessProgress("RV",ProcessedSize,RecFileSize);
LastPercent=CurPercent;
}
ProcessedSize+=MaxRead;
}
for (uint I=0;I<TotalCount;I++)
if (RecItems[I].f!=NULL)
RecItems[I].f->Close();
delete[] ValidFlags;
delete[] Data;
#if !defined(SILENT)
if (!Cmd->DisablePercentage)
mprintf(L"\b\b\b\b100%%");
if (!Silent && !Cmd->DisableDone)
mprintf(St(MDone));
#endif
return true;
}
uint RecVolumes5::ReadHeader(File *RecFile,bool FirstRev)
{
const size_t FirstReadSize=REV5_SIGN_SIZE+8;
byte ShortBuf[FirstReadSize];
if (RecFile->Read(ShortBuf,FirstReadSize)!=FirstReadSize)
return 0;
if (memcmp(ShortBuf,REV5_SIGN,REV5_SIGN_SIZE)!=0)
return 0;
uint HeaderSize=RawGet4(ShortBuf+REV5_SIGN_SIZE+4);
if (HeaderSize>0x100000 || HeaderSize<=5)
return 0;
uint BlockCRC=RawGet4(ShortBuf+REV5_SIGN_SIZE);
RawRead Raw(RecFile);
if (Raw.Read(HeaderSize)!=HeaderSize)
return 0;
// Calculate CRC32 of entire header including 4 byte size field.
uint CalcCRC=CRC32(0xffffffff,ShortBuf+REV5_SIGN_SIZE+4,4);
if ((CRC32(CalcCRC,Raw.GetDataPtr(),HeaderSize)^0xffffffff)!=BlockCRC)
return 0;
if (Raw.Get1()!=1) // Version check.
return 0;
DataCount=Raw.Get2();
RecCount=Raw.Get2();
TotalCount=DataCount+RecCount;
uint RecNum=Raw.Get2(); // Number of recovery volume.
if (RecNum>=TotalCount || TotalCount>MaxVolumes)
return 0;
uint RevCRC=Raw.Get4(); // CRC of current REV volume.
if (FirstRev)
{
// If we have read the first valid REV file, init data structures
// using information from REV header.
size_t CurSize=RecItems.Size();
RecItems.Alloc(TotalCount);
for (size_t I=CurSize;I<TotalCount;I++)
RecItems[I].f=NULL;
for (uint I=0;I<DataCount;I++)
{
RecItems[I].FileSize=Raw.Get8();
RecItems[I].CRC=Raw.Get4();
}
}
RecItems[RecNum].CRC=RevCRC; // Assign it here, after allocating RecItems.
return RecNum;
}
void RecVolumes5::Test(RAROptions *Cmd,const wchar *Name)
{
wchar VolName[NM];
wcsncpyz(VolName,Name,ASIZE(VolName));
uint FoundRecVolumes=0;
while (FileExist(VolName))
{
File CurFile;
if (!CurFile.Open(VolName))
{
ErrHandler.OpenErrorMsg(VolName); // It also sets RARX_OPEN.
continue;
}
if (!uiStartFileExtract(VolName,false,true,false))
return;
mprintf(St(MExtrTestFile),VolName);
mprintf(L" ");
bool Valid=false;
uint RecNum=ReadHeader(&CurFile,FoundRecVolumes==0);
if (RecNum!=0)
{
FoundRecVolumes++;
uint RevCRC;
CalcFileSum(&CurFile,&RevCRC,NULL,1,INT64NDF,CALCFSUM_CURPOS|(Cmd->DisablePercentage ? 0 : CALCFSUM_SHOWPROGRESS));
Valid=RevCRC==RecItems[RecNum].CRC;
}
if (Valid)
{
mprintf(L"%s%s ",L"\b\b\b\b\b ",St(MOk));
}
else
{
uiMsg(UIERROR_CHECKSUM,VolName,VolName);
ErrHandler.SetErrorCode(RARX_CRC);
}
NextVolumeName(VolName,ASIZE(VolName),false);
}
}