X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/38a5b1ceeeca6ff530a2816a39bcd10d14c85d33..29636cc759c6fbb92c6c462c90611eefb67cbbd4:/apt-pkg/pkgcache.cc diff --git a/apt-pkg/pkgcache.cc b/apt-pkg/pkgcache.cc index 4d8b9bc41..83cb6149e 100644 --- a/apt-pkg/pkgcache.cc +++ b/apt-pkg/pkgcache.cc @@ -45,6 +45,7 @@ /*}}}*/ using std::string; +using APT::StringView; // Cache::Header::Header - Constructor /*{{{*/ @@ -58,7 +59,7 @@ pkgCache::Header::Header() /* Whenever the structures change the major version should be bumped, whenever the generator changes the minor version should be bumped. */ APT_HEADER_SET(MajorVersion, 10); - APT_HEADER_SET(MinorVersion, 3); + APT_HEADER_SET(MinorVersion, 5); APT_HEADER_SET(Dirty, false); APT_HEADER_SET(HeaderSz, sizeof(pkgCache::Header)); @@ -94,7 +95,7 @@ pkgCache::Header::Header() VerSysName = 0; Architecture = 0; SetArchitectures(0); - SetHashTableSize(_config->FindI("APT::Cache-HashTableSize", 15013)); + SetHashTableSize(_config->FindI("APT::Cache-HashTableSize", 50503)); memset(Pools,0,sizeof(Pools)); CacheFileSize = 0; @@ -126,7 +127,7 @@ bool pkgCache::Header::CheckSizes(Header &Against) const // --------------------------------------------------------------------- /* */ APT_IGNORE_DEPRECATED_PUSH -pkgCache::pkgCache(MMap *Map, bool DoMap) : Map(*Map), d(NULL) +pkgCache::pkgCache(MMap *Map, bool DoMap) : Map(*Map), VS(nullptr), d(NULL) { // call getArchitectures() with cached=false to ensure that the // architectures cache is re-evaulated. this is needed in cases @@ -183,10 +184,12 @@ bool pkgCache::ReMap(bool const &Errorchecks) // Check the architecture std::vector archs = APT::Configuration::getArchitectures(); - std::vector::const_iterator a = archs.begin(); - std::string list = *a; - for (++a; a != archs.end(); ++a) - list.append(",").append(*a); + std::string list = ""; + for (auto const & arch : archs) { + if (!list.empty()) + list.append(","); + list.append(arch); + } if (_config->Find("APT::Architecture") != StrP + HeaderP->Architecture || list != StrP + HeaderP->GetArchitectures()) return _error->Error(_("The package cache was built for different architectures: %s vs %s"), StrP + HeaderP->GetArchitectures(), list.c_str()); @@ -206,6 +209,13 @@ bool pkgCache::ReMap(bool const &Errorchecks) /* This is used to generate the hash entries for the HashTable. With my package list from bo this function gets 94% table usage on a 512 item table (480 used items) */ +map_id_t pkgCache::sHash(StringView Str) const +{ + uint32_t Hash = 5381; + for (auto I = Str.begin(); I != Str.end(); ++I) + Hash = 33 * Hash + tolower_ascii(*I); + return Hash % HeaderP->GetHashTableSize(); +} map_id_t pkgCache::sHash(const string &Str) const { uint32_t Hash = 5381; @@ -251,10 +261,14 @@ uint32_t pkgCache::CacheHash() // --------------------------------------------------------------------- /* Returns 0 on error, pointer to the package otherwise */ pkgCache::PkgIterator pkgCache::FindPkg(const string &Name) { - size_t const found = Name.find(':'); + return FindPkg(StringView(Name)); +} + +pkgCache::PkgIterator pkgCache::FindPkg(StringView Name) { + auto const found = Name.rfind(':'); if (found == string::npos) return FindPkg(Name, "native"); - string const Arch = Name.substr(found+1); + auto const Arch = Name.substr(found+1); /* Beware: This is specialcased to handle pkg:any in dependencies as these are linked to virtual pkg:any named packages. If you want any arch from a pkg, use FindPkg(pkg,"any") */ @@ -267,6 +281,10 @@ pkgCache::PkgIterator pkgCache::FindPkg(const string &Name) { // --------------------------------------------------------------------- /* Returns 0 on error, pointer to the package otherwise */ pkgCache::PkgIterator pkgCache::FindPkg(const string &Name, string const &Arch) { + return FindPkg(StringView(Name), StringView(Arch)); +} + +pkgCache::PkgIterator pkgCache::FindPkg(StringView Name, StringView Arch) { /* We make a detour via the GrpIterator here as on a multi-arch environment a group is easier to find than a package (less entries in the buckets) */ @@ -281,13 +299,17 @@ pkgCache::PkgIterator pkgCache::FindPkg(const string &Name, string const &Arch) // --------------------------------------------------------------------- /* Returns End-Pointer on error, pointer to the group otherwise */ pkgCache::GrpIterator pkgCache::FindGrp(const string &Name) { + return FindGrp(StringView(Name)); +} + +pkgCache::GrpIterator pkgCache::FindGrp(StringView Name) { if (unlikely(Name.empty() == true)) return GrpIterator(*this,0); // Look at the hash bucket for the group Group *Grp = GrpP + HeaderP->GrpHashTableP()[sHash(Name)]; for (; Grp != GrpP; Grp = GrpP + Grp->Next) { - int const cmp = strcmp(Name.c_str(), StrP + Grp->Name); + int const cmp = Name.compare(ViewString(Grp->Name)); if (cmp == 0) return GrpIterator(*this, Grp); else if (cmp < 0) @@ -350,6 +372,12 @@ const char *pkgCache::Priority(unsigned char Prio) // --------------------------------------------------------------------- /* Returns an End-Pointer on error, pointer to the package otherwise */ pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(string Arch) const { + return FindPkg(StringView(Arch)); +} +pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(const char *Arch) const { + return FindPkg(StringView(Arch)); +} +pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(StringView Arch) const { if (unlikely(IsGood() == false || S->FirstPackage == 0)) return PkgIterator(*Owner, 0); @@ -363,7 +391,7 @@ pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(string Arch) const { // Iterate over the list to find the matching arch for (pkgCache::Package *Pkg = PackageList(); Pkg != Owner->PkgP; Pkg = Owner->PkgP + Pkg->NextPackage) { - if (stringcmp(Arch, Owner->StrP + Pkg->Arch) == 0) + if (Arch == Owner->ViewString(Pkg->Arch)) return PkgIterator(*Owner, Pkg); if ((Owner->PkgP + S->LastPackage) == Pkg) break; @@ -376,7 +404,7 @@ pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(string Arch) const { // --------------------------------------------------------------------- /* Returns an End-Pointer on error, pointer to the package otherwise */ pkgCache::PkgIterator pkgCache::GrpIterator::FindPreferredPkg(bool const &PreferNonVirtual) const { - pkgCache::PkgIterator Pkg = FindPkg("native"); + pkgCache::PkgIterator Pkg = FindPkg(StringView("native", 6)); if (Pkg.end() == false && (PreferNonVirtual == false || Pkg->VersionList != 0)) return Pkg; @@ -388,7 +416,7 @@ pkgCache::PkgIterator pkgCache::GrpIterator::FindPreferredPkg(bool const &Prefer return Pkg; } // packages without an architecture - Pkg = FindPkg("none"); + Pkg = FindPkg(StringView("none", 4)); if (Pkg.end() == false && (PreferNonVirtual == false || Pkg->VersionList != 0)) return Pkg; @@ -472,7 +500,7 @@ pkgCache::PkgIterator::OkState pkgCache::PkgIterator::State() const if (S->CurrentState == pkgCache::State::UnPacked || S->CurrentState == pkgCache::State::HalfConfigured) - // we leave triggers alone complettely. dpkg deals with + // we leave triggers alone completely. dpkg deals with // them in a hard-to-predict manner and if they get // resolved by dpkg before apt run dpkg --configure on // the TriggersPending package dpkg returns a error @@ -774,7 +802,7 @@ bool pkgCache::DepIterator::IsImplicit() const return false; } /*}}}*/ -// ostream operator to handle string representation of a dependecy /*{{{*/ +// ostream operator to handle string representation of a dependency /*{{{*/ // --------------------------------------------------------------------- /* */ std::ostream& operator<<(std::ostream& out, pkgCache::DepIterator D)