X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/3addaba1ff6fe27cc96af5c2d345ee039c2bffec..5df91bc70aeac9f39f33d748a3b5602fbf2a3e81:/apt-pkg/pkgcachegen.cc diff --git a/apt-pkg/pkgcachegen.cc b/apt-pkg/pkgcachegen.cc index 10d3fcf21..61f7a1124 100644 --- a/apt-pkg/pkgcachegen.cc +++ b/apt-pkg/pkgcachegen.cc @@ -57,14 +57,15 @@ pkgCacheGenerator::pkgCacheGenerator(DynamicMMap *pMap,OpProgress *Prog) : Map(*pMap), Cache(pMap,false), Progress(Prog), CurrentRlsFile(NULL), CurrentFile(NULL), d(NULL) { - if (_error->PendingError() == true) - return; - if (Map.Size() == 0) { // Setup the map interface.. Cache.HeaderP = (pkgCache::Header *)Map.Data(); - if (Map.RawAllocate(sizeof(pkgCache::Header)) == 0 && _error->PendingError() == true) + _error->PushToStack(); + Map.RawAllocate(sizeof(pkgCache::Header)); + bool const newError = _error->PendingError(); + _error->MergeWithStack(); + if (newError) return; Map.UsePools(*Cache.HeaderP->Pools,sizeof(Cache.HeaderP->Pools)/sizeof(Cache.HeaderP->Pools[0])); @@ -124,7 +125,7 @@ pkgCacheGenerator::pkgCacheGenerator(DynamicMMap *pMap,OpProgress *Prog) : advoid a problem during a crash */ pkgCacheGenerator::~pkgCacheGenerator() { - if (_error->PendingError() == true) + if (_error->PendingError() == true || Map.validData() == false) return; if (Map.Sync() == false) return; @@ -382,7 +383,7 @@ bool pkgCacheGenerator::MergeListVersion(ListParser &List, pkgCache::PkgIterator // Add a new version map_pointer_t const verindex = NewVersion(Ver, Version, Pkg.Index(), Hash, *LastVer); - if (verindex == 0 && _error->PendingError()) + if (unlikely(verindex == 0)) return _error->Error(_("Error occurred while processing %s (%s%d)"), Pkg.Name(), "NewVersion", 1); @@ -470,7 +471,7 @@ bool pkgCacheGenerator::AddNewDescription(ListParser &List, pkgCache::VerIterato Dynamic DynDesc(Desc); map_pointer_t const descindex = NewDescription(Desc, lang, CurMd5, md5idx); - if (unlikely(descindex == 0 && _error->PendingError())) + if (unlikely(descindex == 0)) return _error->Error(_("Error occurred while processing %s (%s%d)"), Ver.ParentPkg().Name(), "NewDescription", 1); @@ -1069,7 +1070,8 @@ bool pkgCacheListParser::NewProvides(pkgCache::VerIterator &Ver, // We do not add self referencing provides if (Ver.ParentPkg().Name() == PkgName && (PkgArch == Ver.ParentPkg().Arch() || - (PkgArch == "all" && strcmp((Cache.StrP + Cache.HeaderP->Architecture), Ver.ParentPkg().Arch()) == 0))) + (PkgArch == "all" && strcmp((Cache.StrP + Cache.HeaderP->Architecture), Ver.ParentPkg().Arch()) == 0)) && + (Version.empty() || Version == Ver.VerStr())) return true; // Locate the target package @@ -1274,12 +1276,18 @@ map_stringitem_t pkgCacheGenerator::StoreString(enum StringType const type, cons /* This just verifies that each file in the list of index files exists, has matching attributes with the cache and the cache does not have any extra files. */ +class APT_HIDDEN ScopedErrorRevert { +public: + ScopedErrorRevert() { _error->PushToStack(); } + ~ScopedErrorRevert() { _error->RevertToStack(); } +}; static bool CheckValidity(const string &CacheFile, pkgSourceList &List, FileIterator const Start, FileIterator const End, MMap **OutMap = 0) { + ScopedErrorRevert ser; bool const Debug = _config->FindB("Debug::pkgCacheGen", false); // No file, certainly invalid if (CacheFile.empty() == true || FileExists(CacheFile) == false) @@ -1299,12 +1307,13 @@ static bool CheckValidity(const string &CacheFile, // Map it FileFd CacheF(CacheFile,FileFd::ReadOnly); std::unique_ptr Map(new MMap(CacheF,0)); + if (unlikely(Map->validData()) == false) + return false; pkgCache Cache(Map.get()); - if (_error->PendingError() == true || Map->Size() == 0) + if (_error->PendingError() || Map->Size() == 0) { if (Debug == true) std::clog << "Errors are pending or Map is empty() for " << CacheFile << std::endl; - _error->Discard(); return false; } @@ -1383,12 +1392,11 @@ static bool CheckValidity(const string &CacheFile, if (Debug == true) { std::clog << "Validity failed because of pending errors:" << std::endl; - _error->DumpErrors(); + _error->DumpErrors(std::clog, GlobalError::DEBUG, false); } - _error->Discard(); return false; } - + if (OutMap != 0) *OutMap = Map.release(); return true; @@ -1428,7 +1436,6 @@ static bool BuildCache(pkgCacheGenerator &Gen, pkgSourceList const * const List, FileIterator const Start, FileIterator const End) { - std::vector Files; bool mergeFailure = false; auto const indexFileMerge = [&](pkgIndexFile * const I) { @@ -1511,7 +1518,7 @@ static bool writeBackMMapToFile(pkgCacheGenerator * const Gen, DynamicMMap * con std::string const &FileName) { FileFd SCacheF(FileName, FileFd::WriteAtomic); - if (_error->PendingError() == true) + if (SCacheF.IsOpen() == false || SCacheF.Failed()) return false; fchmod(SCacheF.Fd(),0644); @@ -1534,16 +1541,23 @@ static bool loadBackMMapFromFile(std::unique_ptr &Gen, std::unique_ptr &Map, OpProgress * const Progress, std::string const &FileName) { Map.reset(CreateDynamicMMap(NULL, 0)); + if (unlikely(Map->validData()) == false) + return false; FileFd CacheF(FileName, FileFd::ReadOnly); + if (CacheF.IsOpen() == false || CacheF.Failed()) + return false; + _error->PushToStack(); map_pointer_t const alloc = Map->RawAllocate(CacheF.Size()); - if ((alloc == 0 && _error->PendingError()) - || CacheF.Read((unsigned char *)Map->Data() + alloc, - CacheF.Size()) == false) + bool const newError = _error->PendingError(); + _error->MergeWithStack(); + if (alloc == 0 && newError) + return false; + if (CacheF.Read((unsigned char *)Map->Data() + alloc, CacheF.Size()) == false) return false; Gen.reset(new pkgCacheGenerator(Map.get(),Progress)); return true; } -APT_DEPRECATED bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, +bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, MMap **OutMap, bool AllowMem) { return pkgCacheGenerator::MakeStatusCache(List, &Progress, OutMap, AllowMem); } bool pkgCacheGenerator::MakeStatusCache(pkgSourceList &List,OpProgress *Progress, @@ -1618,6 +1632,8 @@ bool pkgCacheGenerator::MakeStatusCache(pkgSourceList &List,OpProgress *Progress // At this point we know we need to construct something, so get storage ready std::unique_ptr Map(CreateDynamicMMap(NULL, 0)); + if (unlikely(Map->validData()) == false) + return false; if (Debug == true) std::clog << "Open memory Map (not filebased)" << std::endl; @@ -1691,9 +1707,12 @@ bool pkgCacheGenerator::MakeStatusCache(pkgSourceList &List,OpProgress *Progress } /*}}}*/ // CacheGenerator::MakeOnlyStatusCache - Build only a status files cache/*{{{*/ -// --------------------------------------------------------------------- -/* */ -APT_DEPRECATED bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap) +class APT_HIDDEN ScopedErrorMerge { +public: + ScopedErrorMerge() { _error->PushToStack(); } + ~ScopedErrorMerge() { _error->MergeWithStack(); } +}; +bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap) { return pkgCacheGenerator::MakeOnlyStatusCache(&Progress, OutMap); } bool pkgCacheGenerator::MakeOnlyStatusCache(OpProgress *Progress,DynamicMMap **OutMap) { @@ -1701,12 +1720,14 @@ bool pkgCacheGenerator::MakeOnlyStatusCache(OpProgress *Progress,DynamicMMap **O if (_system->AddStatusFiles(Files) == false) return false; + ScopedErrorMerge sem; std::unique_ptr Map(CreateDynamicMMap(NULL, 0)); + if (unlikely(Map->validData()) == false) + return false; map_filesize_t CurrentSize = 0; map_filesize_t TotalSize = 0; - TotalSize = ComputeSize(NULL, Files.begin(), Files.end()); - + // Build the status cache if (Progress != NULL) Progress->OverallProgress(0,1,1,_("Reading package lists"));