X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/2e5f4e45f593535e2c88181ff7a9e2d32a5e60f9..3bbcf3b90405b25fc3a53dad0a6afdf341de528c:/apt-pkg/pkgcachegen.cc diff --git a/apt-pkg/pkgcachegen.cc b/apt-pkg/pkgcachegen.cc index 5649cd6f8..0e6ae698d 100644 --- a/apt-pkg/pkgcachegen.cc +++ b/apt-pkg/pkgcachegen.cc @@ -36,6 +36,7 @@ #include /*}}}*/ typedef vector::iterator FileIterator; +template std::vector pkgCacheGenerator::Dynamic::toReMap; // CacheGenerator::pkgCacheGenerator - Constructor /*{{{*/ // --------------------------------------------------------------------- @@ -61,8 +62,12 @@ pkgCacheGenerator::pkgCacheGenerator(DynamicMMap *pMap,OpProgress *Prog) : // Starting header *Cache.HeaderP = pkgCache::Header(); - Cache.HeaderP->VerSysName = Map.WriteString(_system->VS->Label); - Cache.HeaderP->Architecture = Map.WriteString(_config->Find("APT::Architecture")); + map_ptrloc const idxVerSysName = WriteStringInMap(_system->VS->Label); + Cache.HeaderP->VerSysName = idxVerSysName; + map_ptrloc const idxArchitecture = WriteStringInMap(_config->Find("APT::Architecture")); + Cache.HeaderP->Architecture = idxArchitecture; + if (unlikely(idxVerSysName == 0 || idxArchitecture == 0)) + return; Cache.ReMap(); } else @@ -93,9 +98,74 @@ pkgCacheGenerator::~pkgCacheGenerator() return; Cache.HeaderP->Dirty = false; + Cache.HeaderP->CacheFileSize = Map.Size(); Map.Sync(0,sizeof(pkgCache::Header)); } /*}}}*/ +void pkgCacheGenerator::ReMap(void const * const oldMap, void const * const newMap) {/*{{{*/ + if (oldMap == newMap) + return; + + if (_config->FindB("Debug::pkgCacheGen", false)) + std::clog << "Remaping from " << oldMap << " to " << newMap << std::endl; + + Cache.ReMap(false); + + CurrentFile += (pkgCache::PackageFile*) newMap - (pkgCache::PackageFile*) oldMap; + + for (size_t i = 0; i < _count(UniqHash); ++i) + if (UniqHash[i] != 0) + UniqHash[i] += (pkgCache::StringItem*) newMap - (pkgCache::StringItem*) oldMap; + + for (std::vector::const_iterator i = Dynamic::toReMap.begin(); + i != Dynamic::toReMap.end(); ++i) + (*i)->ReMap(oldMap, newMap); + for (std::vector::const_iterator i = Dynamic::toReMap.begin(); + i != Dynamic::toReMap.end(); ++i) + (*i)->ReMap(oldMap, newMap); + for (std::vector::const_iterator i = Dynamic::toReMap.begin(); + i != Dynamic::toReMap.end(); ++i) + (*i)->ReMap(oldMap, newMap); + for (std::vector::const_iterator i = Dynamic::toReMap.begin(); + i != Dynamic::toReMap.end(); ++i) + (*i)->ReMap(oldMap, newMap); + for (std::vector::const_iterator i = Dynamic::toReMap.begin(); + i != Dynamic::toReMap.end(); ++i) + (*i)->ReMap(oldMap, newMap); + for (std::vector::const_iterator i = Dynamic::toReMap.begin(); + i != Dynamic::toReMap.end(); ++i) + (*i)->ReMap(oldMap, newMap); + for (std::vector::const_iterator i = Dynamic::toReMap.begin(); + i != Dynamic::toReMap.end(); ++i) + (*i)->ReMap(oldMap, newMap); +} /*}}}*/ +// CacheGenerator::WriteStringInMap /*{{{*/ +map_ptrloc pkgCacheGenerator::WriteStringInMap(const char *String, + const unsigned long &Len) { + void const * const oldMap = Map.Data(); + map_ptrloc const index = Map.WriteString(String, Len); + if (index != 0) + ReMap(oldMap, Map.Data()); + return index; +} + /*}}}*/ +// CacheGenerator::WriteStringInMap /*{{{*/ +map_ptrloc pkgCacheGenerator::WriteStringInMap(const char *String) { + void const * const oldMap = Map.Data(); + map_ptrloc const index = Map.WriteString(String); + if (index != 0) + ReMap(oldMap, Map.Data()); + return index; +} + /*}}}*/ +map_ptrloc pkgCacheGenerator::AllocateInMap(const unsigned long &size) {/*{{{*/ + void const * const oldMap = Map.Data(); + map_ptrloc const index = Map.Allocate(size); + if (index != 0) + ReMap(oldMap, Map.Data()); + return index; +} + /*}}}*/ // CacheGenerator::MergeList - Merge the package list /*{{{*/ // --------------------------------------------------------------------- /* This provides the generation of the entries in the cache. Each loop @@ -112,22 +182,12 @@ bool pkgCacheGenerator::MergeList(ListParser &List, if (PackageName.empty() == true) return false; - /* As we handle Arch all packages as architecture bounded - we add all information to every (simulated) arch package */ - std::vector genArch; - if (List.ArchitectureAll() == true) { - genArch = APT::Configuration::getArchitectures(); - if (genArch.size() != 1) - genArch.push_back("all"); - } else - genArch.push_back(List.Architecture()); - - for (std::vector::const_iterator arch = genArch.begin(); - arch != genArch.end(); ++arch) - { + string const Arch = List.Architecture(); + // Get a pointer to the package structure pkgCache::PkgIterator Pkg; - if (NewPackage(Pkg, PackageName, *arch) == false) + Dynamic DynPkg(Pkg); + if (NewPackage(Pkg, PackageName, Arch) == false) return _error->Error(_("Error occurred while processing %s (NewPackage)"),PackageName.c_str()); Counter++; if (Counter % 100 == 0 && Progress != 0) @@ -142,18 +202,20 @@ bool pkgCacheGenerator::MergeList(ListParser &List, // we first process the package, then the descriptions // (this has the bonus that we get MMap error when we run out // of MMap space) - if (List.UsePackage(Pkg,pkgCache::VerIterator(Cache)) == false) + pkgCache::VerIterator Ver(Cache); + Dynamic DynVer(Ver); + if (List.UsePackage(Pkg, Ver) == false) return _error->Error(_("Error occurred while processing %s (UsePackage1)"), PackageName.c_str()); // Find the right version to write the description MD5SumValue CurMd5 = List.Description_md5(); - pkgCache::VerIterator Ver = Pkg.VersionList(); - map_ptrloc *LastVer = &Pkg->VersionList; + Ver = Pkg.VersionList(); - for (; Ver.end() == false; LastVer = &Ver->NextVer, Ver++) + for (; Ver.end() == false; ++Ver) { pkgCache::DescIterator Desc = Ver.DescriptionList(); + Dynamic DynDesc(Desc); map_ptrloc *LastDesc = &Ver->DescriptionList; bool duplicate=false; @@ -173,7 +235,11 @@ bool pkgCacheGenerator::MergeList(ListParser &List, if (MD5SumValue(Desc.md5()) == CurMd5) { // Add new description - *LastDesc = NewDescription(Desc, List.DescriptionLanguage(), CurMd5, *LastDesc); + void const * const oldMap = Map.Data(); + map_ptrloc const descindex = NewDescription(Desc, List.DescriptionLanguage(), CurMd5, *LastDesc); + if (oldMap != Map.Data()) + LastDesc += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap; + *LastDesc = descindex; Desc->ParentPkg = Pkg.Index(); if ((*LastDesc == 0 && _error->PendingError()) || NewFileDesc(Desc,List) == false) @@ -187,7 +253,9 @@ bool pkgCacheGenerator::MergeList(ListParser &List, } pkgCache::VerIterator Ver = Pkg.VersionList(); + Dynamic DynVer(Ver); map_ptrloc *LastVer = &Pkg->VersionList; + void const * oldMap = Map.Data(); int Res = 1; unsigned long const Hash = List.VersionHash(); for (; Ver.end() == false; LastVer = &Ver->NextVer, Ver++) @@ -226,21 +294,28 @@ bool pkgCacheGenerator::MergeList(ListParser &List, } // Add a new version - *LastVer = NewVersion(Ver,Version,*LastVer); + map_ptrloc const verindex = NewVersion(Ver,Version,*LastVer); + if (verindex == 0 && _error->PendingError()) + return _error->Error(_("Error occurred while processing %s (NewVersion%d)"), + PackageName.c_str(), 1); + + if (oldMap != Map.Data()) + LastVer += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap; + *LastVer = verindex; Ver->ParentPkg = Pkg.Index(); Ver->Hash = Hash; - if ((*LastVer == 0 && _error->PendingError()) || List.NewVersion(Ver) == false) - return _error->Error(_("Error occurred while processing %s (NewVersion1)"), - PackageName.c_str()); + if (List.NewVersion(Ver) == false) + return _error->Error(_("Error occurred while processing %s (NewVersion%d)"), + PackageName.c_str(), 2); if (List.UsePackage(Pkg,Ver) == false) return _error->Error(_("Error occurred while processing %s (UsePackage3)"), PackageName.c_str()); if (NewFileVer(Ver,List) == false) - return _error->Error(_("Error occurred while processing %s (NewVersion2)"), - PackageName.c_str()); + return _error->Error(_("Error occurred while processing %s (NewVersion%d)"), + PackageName.c_str(), 3); // Read only a single record and return if (OutVer != 0) @@ -253,18 +328,22 @@ bool pkgCacheGenerator::MergeList(ListParser &List, /* Record the Description data. Description data always exist in Packages and Translation-* files. */ pkgCache::DescIterator Desc = Ver.DescriptionList(); + Dynamic DynDesc(Desc); map_ptrloc *LastDesc = &Ver->DescriptionList; - + // Skip to the end of description set for (; Desc.end() == false; LastDesc = &Desc->NextDesc, Desc++); // Add new description - *LastDesc = NewDescription(Desc, List.DescriptionLanguage(), List.Description_md5(), *LastDesc); + oldMap = Map.Data(); + map_ptrloc const descindex = NewDescription(Desc, List.DescriptionLanguage(), List.Description_md5(), *LastDesc); + if (oldMap != Map.Data()) + LastDesc += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap; + *LastDesc = descindex; Desc->ParentPkg = Pkg.Index(); if ((*LastDesc == 0 && _error->PendingError()) || NewFileDesc(Desc,List) == false) return _error->Error(_("Error occurred while processing %s (NewFileDesc2)"),PackageName.c_str()); - } } FoundFileDeps |= List.HasFileDeps(); @@ -306,6 +385,7 @@ bool pkgCacheGenerator::MergeFileProvides(ListParser &List) continue; pkgCache::PkgIterator Pkg = Cache.FindPkg(PackageName); + Dynamic DynPkg(Pkg); if (Pkg.end() == true) return _error->Error(_("Error occurred while processing %s (FindPkg)"), PackageName.c_str()); @@ -315,6 +395,7 @@ bool pkgCacheGenerator::MergeFileProvides(ListParser &List) unsigned long Hash = List.VersionHash(); pkgCache::VerIterator Ver = Pkg.VersionList(); + Dynamic DynVer(Ver); for (; Ver.end() == false; Ver++) { if (Ver->Hash == Hash && Version.c_str() == Ver.VerStr()) @@ -342,14 +423,15 @@ bool pkgCacheGenerator::NewGroup(pkgCache::GrpIterator &Grp, const string &Name) return true; // Get a structure - unsigned long const Group = Map.Allocate(sizeof(pkgCache::Group)); + map_ptrloc const Group = AllocateInMap(sizeof(pkgCache::Group)); if (unlikely(Group == 0)) return false; Grp = pkgCache::GrpIterator(Cache, Cache.GrpP + Group); - Grp->Name = Map.WriteString(Name); - if (unlikely(Grp->Name == 0)) + map_ptrloc const idxName = WriteStringInMap(Name); + if (unlikely(idxName == 0)) return false; + Grp->Name = idxName; // Insert it into the hash table unsigned long const Hash = Cache.Hash(Name); @@ -366,6 +448,7 @@ bool pkgCacheGenerator::NewGroup(pkgCache::GrpIterator &Grp, const string &Name) bool pkgCacheGenerator::NewPackage(pkgCache::PkgIterator &Pkg,const string &Name, const string &Arch) { pkgCache::GrpIterator Grp; + Dynamic DynGrp(Grp); if (unlikely(NewGroup(Grp, Name) == false)) return false; @@ -374,7 +457,7 @@ bool pkgCacheGenerator::NewPackage(pkgCache::PkgIterator &Pkg,const string &Name return true; // Get a structure - unsigned long const Package = Map.Allocate(sizeof(pkgCache::Package)); + map_ptrloc const Package = AllocateInMap(sizeof(pkgCache::Package)); if (unlikely(Package == 0)) return false; Pkg = pkgCache::PkgIterator(Cache,Cache.PkgP + Package); @@ -400,9 +483,11 @@ bool pkgCacheGenerator::NewPackage(pkgCache::PkgIterator &Pkg,const string &Name // Set the name, arch and the ID Pkg->Name = Grp->Name; Pkg->Group = Grp.Index(); - Pkg->Arch = WriteUniqString(Arch.c_str()); - if (unlikely(Pkg->Arch == 0)) + // all is mapped to the native architecture + map_ptrloc const idxArch = (Arch == "all") ? Cache.HeaderP->Architecture : WriteUniqString(Arch.c_str()); + if (unlikely(idxArch == 0)) return false; + Pkg->Arch = idxArch; Pkg->ID = Cache.HeaderP->PackageCount++; return true; @@ -418,7 +503,7 @@ bool pkgCacheGenerator::NewFileVer(pkgCache::VerIterator &Ver, return true; // Get a structure - unsigned long VerFile = Map.Allocate(sizeof(pkgCache::VerFile)); + map_ptrloc const VerFile = AllocateInMap(sizeof(pkgCache::VerFile)); if (VerFile == 0) return 0; @@ -449,7 +534,7 @@ unsigned long pkgCacheGenerator::NewVersion(pkgCache::VerIterator &Ver, unsigned long Next) { // Get a structure - unsigned long Version = Map.Allocate(sizeof(pkgCache::Version)); + map_ptrloc const Version = AllocateInMap(sizeof(pkgCache::Version)); if (Version == 0) return 0; @@ -457,9 +542,10 @@ unsigned long pkgCacheGenerator::NewVersion(pkgCache::VerIterator &Ver, Ver = pkgCache::VerIterator(Cache,Cache.VerP + Version); Ver->NextVer = Next; Ver->ID = Cache.HeaderP->VersionCount++; - Ver->VerStr = Map.WriteString(VerStr); - if (Ver->VerStr == 0) + map_ptrloc const idxVerStr = WriteStringInMap(VerStr); + if (unlikely(idxVerStr == 0)) return 0; + Ver->VerStr = idxVerStr; return Version; } @@ -474,7 +560,7 @@ bool pkgCacheGenerator::NewFileDesc(pkgCache::DescIterator &Desc, return true; // Get a structure - unsigned long DescFile = Map.Allocate(sizeof(pkgCache::DescFile)); + map_ptrloc const DescFile = AllocateInMap(sizeof(pkgCache::DescFile)); if (DescFile == 0) return false; @@ -507,7 +593,7 @@ map_ptrloc pkgCacheGenerator::NewDescription(pkgCache::DescIterator &Desc, map_ptrloc Next) { // Get a structure - map_ptrloc Description = Map.Allocate(sizeof(pkgCache::Description)); + map_ptrloc const Description = AllocateInMap(sizeof(pkgCache::Description)); if (Description == 0) return 0; @@ -515,10 +601,12 @@ map_ptrloc pkgCacheGenerator::NewDescription(pkgCache::DescIterator &Desc, Desc = pkgCache::DescIterator(Cache,Cache.DescP + Description); Desc->NextDesc = Next; Desc->ID = Cache.HeaderP->DescriptionCount++; - Desc->language_code = Map.WriteString(Lang); - Desc->md5sum = Map.WriteString(md5sum.Value()); - if (Desc->language_code == 0 || Desc->md5sum == 0) + map_ptrloc const idxlanguage_code = WriteStringInMap(Lang); + map_ptrloc const idxmd5sum = WriteStringInMap(md5sum.Value()); + if (unlikely(idxlanguage_code == 0 || idxmd5sum == 0)) return 0; + Desc->language_code = idxlanguage_code; + Desc->md5sum = idxmd5sum; return Description; } @@ -534,34 +622,39 @@ bool pkgCacheGenerator::FinishCache(OpProgress *Progress) if (archs.size() > 1) { // Create Conflicts in between the group - for (pkgCache::GrpIterator G = GetCache().GrpBegin(); G.end() != true; G++) + pkgCache::GrpIterator G = GetCache().GrpBegin(); + Dynamic DynG(G); + for (; G.end() != true; G++) { string const PkgName = G.Name(); - for (pkgCache::PkgIterator P = G.PackageList(); P.end() != true; P = G.NextPkg(P)) + pkgCache::PkgIterator P = G.PackageList(); + Dynamic DynP(P); + for (; P.end() != true; P = G.NextPkg(P)) { - if (strcmp(P.Arch(),"all") == 0) - continue; pkgCache::PkgIterator allPkg; - for (pkgCache::VerIterator V = P.VersionList(); V.end() != true; V++) + Dynamic DynallPkg(allPkg); + pkgCache::VerIterator V = P.VersionList(); + Dynamic DynV(V); + for (; V.end() != true; V++) { - string const Arch = V.Arch(true); + // copy P.Arch() into a string here as a cache remap + // in NewDepends() later may alter the pointer location + string Arch = P.Arch() == NULL ? "" : P.Arch(); map_ptrloc *OldDepLast = NULL; /* MultiArch handling introduces a lot of implicit Dependencies: - MultiArch: same → Co-Installable if they have the same version - Architecture: all → Need to be Co-Installable for internal reasons - All others conflict with all other group members */ - bool const coInstall = (V->MultiArch == pkgCache::Version::All || - V->MultiArch == pkgCache::Version::Same); - if (V->MultiArch == pkgCache::Version::All && allPkg.end() == true) - allPkg = G.FindPkg("all"); + bool const coInstall = ((V->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same); for (vector::const_iterator A = archs.begin(); A != archs.end(); ++A) { - if (*A == Arch) + if (Arch == 0 || *A == Arch) continue; /* We allow only one installed arch at the time per group, therefore each group member conflicts with all other group members */ pkgCache::PkgIterator D = G.FindPkg(*A); + Dynamic DynD(D); if (D.end() == true) continue; if (coInstall == true) @@ -572,18 +665,8 @@ bool pkgCacheGenerator::FinishCache(OpProgress *Progress) OldDepLast); // Breaks: ${self}:other (!= ${binary:Version}) NewDepends(D, V, V.VerStr(), - pkgCache::Dep::Less, pkgCache::Dep::DpkgBreaks, - OldDepLast); - NewDepends(D, V, V.VerStr(), - pkgCache::Dep::Greater, pkgCache::Dep::DpkgBreaks, + pkgCache::Dep::NotEquals, pkgCache::Dep::DpkgBreaks, OldDepLast); - if (V->MultiArch == pkgCache::Version::All) - { - // Depend on ${self}:all which does depend on nothing - NewDepends(allPkg, V, V.VerStr(), - pkgCache::Dep::Equals, pkgCache::Dep::Depends, - OldDepLast); - } } else { // Conflicts: ${self}:other NewDepends(D, V, "", @@ -607,15 +690,17 @@ bool pkgCacheGenerator::NewDepends(pkgCache::PkgIterator &Pkg, string const &Version, unsigned int const &Op, unsigned int const &Type, - map_ptrloc *OldDepLast) + map_ptrloc* &OldDepLast) { + void const * const oldMap = Map.Data(); // Get a structure - unsigned long const Dependency = Map.Allocate(sizeof(pkgCache::Dependency)); + map_ptrloc const Dependency = AllocateInMap(sizeof(pkgCache::Dependency)); if (unlikely(Dependency == 0)) return false; // Fill it in pkgCache::DepIterator Dep(Cache,Cache.DepP + Dependency); + Dynamic DynDep(Dep); Dep->ParentVer = Ver.Index(); Dep->Type = Type; Dep->CompareOp = Op; @@ -627,9 +712,12 @@ bool pkgCacheGenerator::NewDepends(pkgCache::PkgIterator &Pkg, /* for (pkgCache::DepIterator I = Pkg.RevDependsList(); I.end() == false; I++) if (I->Version != 0 && I.TargetVer() == Version) Dep->Version = I->Version;*/ - if (Dep->Version == 0) - if (unlikely((Dep->Version = Map.WriteString(Version)) == 0)) + if (Dep->Version == 0) { + map_ptrloc const index = WriteStringInMap(Version); + if (unlikely(index == 0)) return false; + Dep->Version = index; + } } // Link it to the package @@ -643,7 +731,8 @@ bool pkgCacheGenerator::NewDepends(pkgCache::PkgIterator &Pkg, OldDepLast = &Ver->DependsList; for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; D++) OldDepLast = &D->NextDepends; - } + } else if (oldMap != Map.Data()) + OldDepLast += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap; Dep->NextDepends = *OldDepLast; *OldDepLast = Dep.Index(); @@ -656,7 +745,7 @@ bool pkgCacheGenerator::NewDepends(pkgCache::PkgIterator &Pkg, // --------------------------------------------------------------------- /* This creates a Group and the Package to link this dependency to if needed and handles also the caching of the old endpoint */ -bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver, +bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator &Ver, const string &PackageName, const string &Arch, const string &Version, @@ -664,11 +753,13 @@ bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver, unsigned int Type) { pkgCache::GrpIterator Grp; + Dynamic DynGrp(Grp); if (unlikely(Owner->NewGroup(Grp, PackageName) == false)) return false; // Locate the target package pkgCache::PkgIterator Pkg = Grp.FindPkg(Arch); + Dynamic DynPkg(Pkg); if (Pkg.end() == true) { if (unlikely(Owner->NewPackage(Pkg, PackageName, Arch) == false)) return false; @@ -690,7 +781,7 @@ bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver, // ListParser::NewProvides - Create a Provides element /*{{{*/ // --------------------------------------------------------------------- /* */ -bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator Ver, +bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator &Ver, const string &PkgName, const string &PkgArch, const string &Version) @@ -698,17 +789,19 @@ bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator Ver, pkgCache &Cache = Owner->Cache; // We do not add self referencing provides - if (Ver.ParentPkg().Name() == PkgName && PkgArch == Ver.Arch(true)) + if (Ver.ParentPkg().Name() == PkgName && (PkgArch == Ver.ParentPkg().Arch() || + (PkgArch == "all" && strcmp((Cache.StrP + Cache.HeaderP->Architecture), Ver.ParentPkg().Arch()) == 0))) return true; // Get a structure - unsigned long const Provides = Owner->Map.Allocate(sizeof(pkgCache::Provides)); + map_ptrloc const Provides = Owner->AllocateInMap(sizeof(pkgCache::Provides)); if (unlikely(Provides == 0)) return false; Cache.HeaderP->ProvidesCount++; // Fill it in pkgCache::PrvIterator Prv(Cache,Cache.ProvideP + Provides,Cache.PkgP); + Dynamic DynPrv(Prv); Prv->Version = Ver.Index(); Prv->NextPkgProv = Ver->ProvidesList; Ver->ProvidesList = Prv.Index(); @@ -717,6 +810,7 @@ bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator Ver, // Locate the target package pkgCache::PkgIterator Pkg; + Dynamic DynPkg(Pkg); if (unlikely(Owner->NewPackage(Pkg,PkgName, PkgArch) == false)) return false; @@ -737,24 +831,29 @@ bool pkgCacheGenerator::SelectFile(const string &File,const string &Site, unsigned long Flags) { // Get some space for the structure - CurrentFile = Cache.PkgFileP + Map.Allocate(sizeof(*CurrentFile)); - if (CurrentFile == Cache.PkgFileP) + map_ptrloc const idxFile = AllocateInMap(sizeof(*CurrentFile)); + if (unlikely(idxFile == 0)) return false; - + CurrentFile = Cache.PkgFileP + idxFile; + // Fill it in - CurrentFile->FileName = Map.WriteString(File); - CurrentFile->Site = WriteUniqString(Site); + map_ptrloc const idxFileName = WriteStringInMap(File); + map_ptrloc const idxSite = WriteUniqString(Site); + if (unlikely(idxFileName == 0 || idxSite == 0)) + return false; + CurrentFile->FileName = idxFileName; + CurrentFile->Site = idxSite; CurrentFile->NextFile = Cache.HeaderP->FileList; CurrentFile->Flags = Flags; CurrentFile->ID = Cache.HeaderP->PackageFileCount; - CurrentFile->IndexType = WriteUniqString(Index.GetType()->Label); + map_ptrloc const idxIndexType = WriteUniqString(Index.GetType()->Label); + if (unlikely(idxIndexType == 0)) + return false; + CurrentFile->IndexType = idxIndexType; PkgFileName = File; Cache.HeaderP->FileList = CurrentFile - Cache.PkgFileP; Cache.HeaderP->PackageFileCount++; - if (CurrentFile->FileName == 0) - return false; - if (Progress != 0) Progress->SubProgress(Index.Size()); return true; @@ -794,18 +893,25 @@ unsigned long pkgCacheGenerator::WriteUniqString(const char *S, } // Get a structure - unsigned long Item = Map.Allocate(sizeof(pkgCache::StringItem)); + void const * const oldMap = Map.Data(); + map_ptrloc const Item = AllocateInMap(sizeof(pkgCache::StringItem)); if (Item == 0) return 0; + map_ptrloc const idxString = WriteStringInMap(S,Size); + if (unlikely(idxString == 0)) + return 0; + if (oldMap != Map.Data()) { + Last += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap; + I += (pkgCache::StringItem*) Map.Data() - (pkgCache::StringItem*) oldMap; + } + *Last = Item; + // Fill in the structure pkgCache::StringItem *ItemP = Cache.StringItemP + Item; ItemP->NextItem = I - Cache.StringItemP; - *Last = Item; - ItemP->String = Map.WriteString(S,Size); - if (ItemP->String == 0) - return 0; - + ItemP->String = idxString; + Bucket = ItemP; return ItemP->String; } @@ -815,8 +921,11 @@ unsigned long pkgCacheGenerator::WriteUniqString(const char *S, /* 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. */ -static bool CheckValidity(const string &CacheFile, FileIterator Start, - FileIterator End,MMap **OutMap = 0) +static bool CheckValidity(const string &CacheFile, + pkgSourceList &List, + FileIterator Start, + FileIterator End, + MMap **OutMap = 0) { bool const Debug = _config->FindB("Debug::pkgCacheGen", false); // No file, certainly invalid @@ -827,6 +936,13 @@ static bool CheckValidity(const string &CacheFile, FileIterator Start, return false; } + if (List.GetLastModifiedTime() < GetModificationTime(CacheFile)) + { + if (Debug == true) + std::clog << "sources.list is newer than the cache" << std::endl; + return false; + } + // Map it FileFd CacheF(CacheFile,FileFd::ReadOnly); SPtr Map = new MMap(CacheF,0); @@ -972,6 +1088,20 @@ static bool BuildCache(pkgCacheGenerator &Gen, return true; } /*}}}*/ +// CacheGenerator::CreateDynamicMMap - load an mmap with configuration options /*{{{*/ +DynamicMMap* pkgCacheGenerator::CreateDynamicMMap(FileFd *CacheF, unsigned long Flags) { + unsigned long const MapStart = _config->FindI("APT::Cache-Start", 24*1024*1024); + unsigned long const MapGrow = _config->FindI("APT::Cache-Grow", 1*1024*1024); + unsigned long const MapLimit = _config->FindI("APT::Cache-Limit", 0); + Flags |= MMap::Moveable; + if (_config->FindB("APT::Cache-Fallback", false) == true) + Flags |= MMap::Fallback; + if (CacheF != NULL) + return new DynamicMMap(*CacheF, Flags, MapStart, MapGrow, MapLimit); + else + return new DynamicMMap(Flags, MapStart, MapGrow, MapLimit); +} + /*}}}*/ // CacheGenerator::MakeStatusCache - Construct the status cache /*{{{*/ // --------------------------------------------------------------------- /* This makes sure that the status cache (the cache that has all @@ -987,7 +1117,6 @@ bool pkgCacheGenerator::MakeStatusCache(pkgSourceList &List,OpProgress *Progress MMap **OutMap,bool AllowMem) { bool const Debug = _config->FindB("Debug::pkgCacheGen", false); - unsigned long const MapSize = _config->FindI("APT::Cache-Limit",24*1024*1024); vector Files; for (vector::const_iterator i = List.begin(); @@ -1039,7 +1168,7 @@ bool pkgCacheGenerator::MakeStatusCache(pkgSourceList &List,OpProgress *Progress Progress->OverallProgress(0,1,1,_("Reading package lists")); // Cache is OK, Fin. - if (CheckValidity(CacheFile,Files.begin(),Files.end(),OutMap) == true) + if (CheckValidity(CacheFile, List, Files.begin(),Files.end(),OutMap) == true) { if (Progress != NULL) Progress->OverallProgress(1,1,1,_("Reading package lists")); @@ -1056,19 +1185,35 @@ bool pkgCacheGenerator::MakeStatusCache(pkgSourceList &List,OpProgress *Progress SPtr Map; if (Writeable == true && CacheFile.empty() == false) { + _error->PushToStack(); unlink(CacheFile.c_str()); - CacheF = new FileFd(CacheFile,FileFd::WriteEmpty); + CacheF = new FileFd(CacheFile,FileFd::WriteAtomic); fchmod(CacheF->Fd(),0644); - Map = new DynamicMMap(*CacheF,MMap::Public,MapSize); + Map = CreateDynamicMMap(CacheF, MMap::Public); if (_error->PendingError() == true) - return false; - if (Debug == true) + { + delete CacheF.UnGuard(); + delete Map.UnGuard(); + if (Debug == true) + std::clog << "Open filebased MMap FAILED" << std::endl; + Writeable = false; + if (AllowMem == false) + { + _error->MergeWithStack(); + return false; + } + _error->RevertToStack(); + } + else if (Debug == true) + { + _error->MergeWithStack(); std::clog << "Open filebased MMap" << std::endl; + } } - else + if (Writeable == false || CacheFile.empty() == true) { // Just build it in memory.. - Map = new DynamicMMap(0,MapSize); + Map = CreateDynamicMMap(NULL); if (Debug == true) std::clog << "Open memory Map (not filebased)" << std::endl; } @@ -1076,7 +1221,7 @@ bool pkgCacheGenerator::MakeStatusCache(pkgSourceList &List,OpProgress *Progress // Lets try the source cache. unsigned long CurrentSize = 0; unsigned long TotalSize = 0; - if (CheckValidity(SrcCacheFile,Files.begin(), + if (CheckValidity(SrcCacheFile, List, Files.begin(), Files.begin()+EndOfSource) == true) { if (Debug == true) @@ -1119,7 +1264,7 @@ bool pkgCacheGenerator::MakeStatusCache(pkgSourceList &List,OpProgress *Progress // Write it back if (Writeable == true && SrcCacheFile.empty() == false) { - FileFd SCacheF(SrcCacheFile,FileFd::WriteEmpty); + FileFd SCacheF(SrcCacheFile,FileFd::WriteAtomic); if (_error->PendingError() == true) return false; @@ -1175,13 +1320,12 @@ __deprecated bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutM { return pkgCacheGenerator::MakeOnlyStatusCache(&Progress, OutMap); } bool pkgCacheGenerator::MakeOnlyStatusCache(OpProgress *Progress,DynamicMMap **OutMap) { - unsigned long MapSize = _config->FindI("APT::Cache-Limit",20*1024*1024); vector Files; unsigned long EndOfSource = Files.size(); if (_system->AddStatusFiles(Files) == false) return false; - - SPtr Map = new DynamicMMap(0,MapSize); + + SPtr Map = CreateDynamicMMap(NULL); unsigned long CurrentSize = 0; unsigned long TotalSize = 0;