#include <apt-pkg/progress.h>
#include <apt-pkg/sourcelist.h>
#include <apt-pkg/configuration.h>
-#include <apt-pkg/strutl.h>
-#include <apt-pkg/sptr.h>
#include <apt-pkg/pkgsystem.h>
#include <apt-pkg/macros.h>
#include <apt-pkg/metaindex.h>
#include <iostream>
#include <string>
#include <vector>
+#include <memory>
+#include <algorithm>
#include <sys/stat.h>
#include <unistd.h>
#include <apti18n.h>
- /*}}}*/
+
+template<class T> using Dynamic = pkgCacheGenerator::Dynamic<T>; /*}}}*/
typedef std::vector<pkgIndexFile *>::iterator FileIterator;
template <typename Iter> std::vector<Iter*> pkgCacheGenerator::Dynamic<Iter>::toReMap;
/* We set the dirty flag and make sure that is written to the disk */
pkgCacheGenerator::pkgCacheGenerator(DynamicMMap *pMap,OpProgress *Prog) :
Map(*pMap), Cache(pMap,false), Progress(Prog),
- CurrentRlsFile(NULL), CurrentFile(NULL), FoundFileDeps(0), d(NULL)
+ 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]));
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;
continue;
}
- if (Arch.empty() == true)
- {
- // use the pseudo arch 'none' for arch-less packages
- Arch = "none";
- /* We might built a SingleArchCache here, which we don't want to blow up
- just for these :none packages to a proper MultiArchCache, so just ensure
- that we have always a native package structure first for SingleArch */
- pkgCache::PkgIterator NP;
- Dynamic<pkgCache::PkgIterator> DynPkg(NP);
- if (NewPackage(NP, PackageName, _config->Find("APT::Architecture")) == false)
- // TRANSLATOR: The first placeholder is a package name,
- // the other two should be copied verbatim as they include debug info
- return _error->Error(_("Error occurred while processing %s (%s%d)"),
- PackageName.c_str(), "NewPackage", 0);
- }
-
// Get a pointer to the package structure
pkgCache::PkgIterator Pkg;
Dynamic<pkgCache::PkgIterator> DynPkg(Pkg);
}
if (OutVer != 0)
- {
- FoundFileDeps |= List.HasFileDeps();
return true;
- }
}
if (Cache.HeaderP->PackageCount >= std::numeric_limits<map_id_t>::max())
return _error->Error(_("Wow, you exceeded the number of dependencies "
"this APT is capable of."));
- FoundFileDeps |= List.HasFileDeps();
return true;
}
// CacheGenerator::MergeListGroup /*{{{*/
// 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);
return _error->Error(_("Error occurred while processing %s (%s%d)"),
Pkg.Name(), "AddImplicitDepends", 1);
}
- /* :none packages are packages without an architecture. They are forbidden by
- debian-policy, so usually they will only be in (old) dpkg status files -
- and dpkg will complain about them - and are pretty rare. We therefore do
- usually not create conflicts while the parent is created, but only if a :none
- package (= the target) appears. This creates incorrect dependencies on :none
- for architecture-specific dependencies on the package we copy from, but we
- will ignore this bug as architecture-specific dependencies are only allowed
- in jessie and until then the :none packages should be extinct (hopefully).
- In other words: This should work long enough to allow graceful removal of
- these packages, it is not supposed to allow users to keep using them … */
- if (strcmp(Pkg.Arch(), "none") == 0)
- {
- pkgCache::PkgIterator M = Grp.FindPreferredPkg();
- if (M.end() == false && Pkg != M)
- {
- pkgCache::DepIterator D = M.RevDependsList();
- Dynamic<pkgCache::DepIterator> DynD(D);
- for (; D.end() == false; ++D)
- {
- if ((D->Type != pkgCache::Dep::Conflicts &&
- D->Type != pkgCache::Dep::DpkgBreaks &&
- D->Type != pkgCache::Dep::Replaces) ||
- D.ParentPkg().Group() == Grp)
- continue;
-
- map_pointer_t *OldDepLast = NULL;
- pkgCache::VerIterator ConVersion = D.ParentVer();
- Dynamic<pkgCache::VerIterator> DynV(ConVersion);
- // duplicate the Conflicts/Breaks/Replaces for :none arch
- NewDepends(Pkg, ConVersion, D->Version,
- D->CompareOp, D->Type, OldDepLast);
- }
- }
- }
}
if (unlikely(AddImplicitDepends(Grp, Pkg, Ver) == false))
return _error->Error(_("Error occurred while processing %s (%s%d)"),
Dynamic<pkgCache::DescIterator> 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);
}
/*}}}*/
/*}}}*/
-// CacheGenerator::MergeFileProvides - Merge file provides /*{{{*/
-// ---------------------------------------------------------------------
-/* If we found any file depends while parsing the main list we need to
- resolve them. Since it is undesired to load the entire list of files
- into the cache as virtual packages we do a two stage effort. MergeList
- identifies the file depends and this creates Provdies for them by
- re-parsing all the indexs. */
-bool pkgCacheGenerator::MergeFileProvides(ListParser &List)
-{
- List.Owner = this;
-
- unsigned int Counter = 0;
- while (List.Step() == true)
- {
- string PackageName = List.Package();
- if (PackageName.empty() == true)
- return false;
- string Version = List.Version();
- if (Version.empty() == true)
- continue;
-
- pkgCache::PkgIterator Pkg = Cache.FindPkg(PackageName);
- Dynamic<pkgCache::PkgIterator> DynPkg(Pkg);
- if (Pkg.end() == true)
- return _error->Error(_("Error occurred while processing %s (%s%d)"),
- PackageName.c_str(), "FindPkg", 1);
- Counter++;
- if (Counter % 100 == 0 && Progress != 0)
- Progress->Progress(List.Offset());
-
- unsigned short Hash = List.VersionHash();
- pkgCache::VerIterator Ver = Pkg.VersionList();
- Dynamic<pkgCache::VerIterator> DynVer(Ver);
- for (; Ver.end() == false; ++Ver)
- {
- if (List.SameVersion(Hash, Ver) == true && Version == Ver.VerStr())
- {
- if (List.CollectFileProvides(Cache,Ver) == false)
- return _error->Error(_("Error occurred while processing %s (%s%d)"),
- PackageName.c_str(), "CollectFileProvides", 1);
- break;
- }
- }
-
- if (Ver.end() == true)
- _error->Warning(_("Package %s %s was not found while processing file dependencies"),PackageName.c_str(),Version.c_str());
- }
-
- return true;
-}
- /*}}}*/
// CacheGenerator::NewGroup - Add a new group /*{{{*/
// ---------------------------------------------------------------------
/* This creates a new group structure and adds it to the hash table */
if (APT::Configuration::checkArchitecture(Pkg.Arch()) == true)
{
pkgCache::PkgIterator const M = Grp.FindPreferredPkg(false); // native or any foreign pkg will do
- if (M.end() == false)
- for (pkgCache::PrvIterator Prv = M.ProvidesList(); Prv.end() == false; ++Prv)
+ if (M.end() == false) {
+ pkgCache::PrvIterator Prv;
+ Dynamic<pkgCache::PrvIterator> DynPrv(Prv);
+ for (Prv = M.ProvidesList(); Prv.end() == false; ++Prv)
{
if ((Prv->Flags & pkgCache::Flag::ArchSpecific) != 0)
continue;
pkgCache::VerIterator Ver = Prv.OwnerVer();
+ Dynamic<pkgCache::VerIterator> DynVer(Ver);
if ((Ver->MultiArch & pkgCache::Version::Allowed) == pkgCache::Version::Allowed ||
((Ver->MultiArch & pkgCache::Version::Foreign) == pkgCache::Version::Foreign &&
(Prv->Flags & pkgCache::Flag::MultiArchImplicit) == 0))
if (NewProvides(Ver, Pkg, Prv->ProvideVersion, Prv->Flags) == false)
return false;
}
+ }
+
+
+ pkgCache::PkgIterator P;
+ pkgCache::VerIterator Ver;
+ Dynamic<pkgCache::PkgIterator> DynP(P);
+ Dynamic<pkgCache::VerIterator> DynVer(Ver);
- for (pkgCache::PkgIterator P = Grp.PackageList(); P.end() == false; P = Grp.NextPkg(P))
- for (pkgCache::VerIterator Ver = P.VersionList(); Ver.end() == false; ++Ver)
+ for (P = Grp.PackageList(); P.end() == false; P = Grp.NextPkg(P))
+ for (Ver = P.VersionList(); Ver.end() == false; ++Ver)
if ((Ver->MultiArch & pkgCache::Version::Foreign) == pkgCache::Version::Foreign)
if (NewProvides(Ver, Pkg, Ver->VerStr, pkgCache::Flag::MultiArchImplicit) == false)
return false;
}
+ // and negative dependencies, don't forget negative dependencies
+ {
+ pkgCache::PkgIterator const M = Grp.FindPreferredPkg(false);
+ if (M.end() == false) {
+ pkgCache::DepIterator Dep;
+ Dynamic<pkgCache::DepIterator> DynDep(Dep);
+ for (Dep = M.RevDependsList(); Dep.end() == false; ++Dep)
+ {
+ if ((Dep->CompareOp & (pkgCache::Dep::ArchSpecific | pkgCache::Dep::MultiArchImplicit)) != 0)
+ continue;
+ if (Dep->Type != pkgCache::Dep::DpkgBreaks && Dep->Type != pkgCache::Dep::Conflicts &&
+ Dep->Type != pkgCache::Dep::Replaces)
+ continue;
+ pkgCache::VerIterator Ver = Dep.ParentVer();
+ Dynamic<pkgCache::VerIterator> DynVer(Ver);
+ map_pointer_t * unused = NULL;
+ if (NewDepends(Pkg, Ver, Dep->Version, Dep->CompareOp, Dep->Type, unused) == false)
+ return false;
+ }
+ }
+ }
// this package is the new last package
pkgCache::PkgIterator LastPkg(Cache, Cache.PkgP + Grp->LastPackage);
LastPkg->NextPackage = Package;
}
Grp->LastPackage = Package;
+
+ // lazy-create foo (of amd64) provides foo:amd64 at the time we first need it
+ if (Arch == "any")
+ {
+ size_t const found = Name.find(':');
+ std::string const NameA = Name.substr(0, found);
+ std::string const ArchA = Name.substr(found + 1);
+ pkgCache::PkgIterator PkgA = Cache.FindPkg(NameA, ArchA);
+ if (PkgA.end() == false)
+ {
+ Dynamic<pkgCache::PkgIterator> DynPkgA(PkgA);
+ pkgCache::PrvIterator Prv = PkgA.ProvidesList();
+ for (; Prv.end() == false; ++Prv)
+ {
+ if (Prv.IsMultiArchImplicit())
+ continue;
+ pkgCache::VerIterator V = Prv.OwnerVer();
+ if (ArchA != V.ParentPkg().Arch())
+ continue;
+ if (NewProvides(V, Pkg, V->VerStr, pkgCache::Flag::MultiArchImplicit | pkgCache::Flag::ArchSpecific) == false)
+ return false;
+ }
+ pkgCache::VerIterator V = PkgA.VersionList();
+ Dynamic<pkgCache::VerIterator> DynV(V);
+ for (; V.end() == false; ++V)
+ {
+ if (NewProvides(V, Pkg, V->VerStr, pkgCache::Flag::MultiArchImplicit | pkgCache::Flag::ArchSpecific) == false)
+ return false;
+ }
+ }
+ }
return true;
}
/*}}}*/
// ---------------------------------------------------------------------
/* This creates a dependency element in the tree. It is linked to the
version and to the package that it is pointing to. */
-bool pkgCacheGenerator::NewDepends(pkgCache::PkgIterator &Pkg,
- pkgCache::VerIterator &Ver,
- string const &Version,
- uint8_t const Op,
- uint8_t const Type,
- map_stringitem_t* &OldDepLast)
-{
- map_stringitem_t index = 0;
- if (Version.empty() == false)
- {
- int const CmpOp = Op & 0x0F;
- // =-deps are used (79:1) for lockstep on same-source packages (e.g. data-packages)
- if (CmpOp == pkgCache::Dep::Equals && strcmp(Version.c_str(), Ver.VerStr()) == 0)
- index = Ver->VerStr;
-
- if (index == 0)
- {
- void const * const oldMap = Map.Data();
- index = StoreString(VERSIONNUMBER, Version);
- if (unlikely(index == 0))
- return false;
- if (OldDepLast != 0 && oldMap != Map.Data())
- OldDepLast += (map_pointer_t const * const) Map.Data() - (map_pointer_t const * const) oldMap;
- }
- }
- return NewDepends(Pkg, Ver, index, Op, Type, OldDepLast);
-}
bool pkgCacheGenerator::NewDepends(pkgCache::PkgIterator &Pkg,
pkgCache::VerIterator &Ver,
map_pointer_t const Version,
// ---------------------------------------------------------------------
/* 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 pkgCacheListParser::NewDepends(pkgCache::VerIterator &Ver,
const string &PackageName,
const string &Arch,
const string &Version,
if (unlikely(Owner->NewGroup(Grp, PackageName) == false))
return false;
- // Locate the target package
- pkgCache::PkgIterator Pkg = Grp.FindPkg(Arch);
- // we don't create 'none' packages and their dependencies if we can avoid it …
- if (Pkg.end() == true && Arch == "none" && strcmp(Ver.ParentPkg().Arch(), "none") != 0)
- return true;
- Dynamic<pkgCache::PkgIterator> DynPkg(Pkg);
- if (Pkg.end() == true) {
- if (unlikely(Owner->NewPackage(Pkg, PackageName, Arch) == false))
- return false;
+ map_stringitem_t idxVersion = 0;
+ if (Version.empty() == false)
+ {
+ int const CmpOp = Op & 0x0F;
+ // =-deps are used (79:1) for lockstep on same-source packages (e.g. data-packages)
+ if (CmpOp == pkgCache::Dep::Equals && strcmp(Version.c_str(), Ver.VerStr()) == 0)
+ idxVersion = Ver->VerStr;
+
+ if (idxVersion == 0)
+ {
+ idxVersion = StoreString(pkgCacheGenerator::VERSIONNUMBER, Version);
+ if (unlikely(idxVersion == 0))
+ return false;
+ }
}
- // Is it a file dependency?
- if (unlikely(PackageName[0] == '/'))
- FoundFileDeps = true;
+ bool const isNegative = (Type == pkgCache::Dep::DpkgBreaks ||
+ Type == pkgCache::Dep::Conflicts ||
+ Type == pkgCache::Dep::Replaces);
- /* Caching the old end point speeds up generation substantially */
- if (OldDepVer != Ver) {
- OldDepLast = NULL;
- OldDepVer = Ver;
+ pkgCache::PkgIterator Pkg;
+ Dynamic<pkgCache::PkgIterator> DynPkg(Pkg);
+ if (isNegative == false || (Op & pkgCache::Dep::ArchSpecific) == pkgCache::Dep::ArchSpecific || Grp->FirstPackage == 0)
+ {
+ // Locate the target package
+ Pkg = Grp.FindPkg(Arch);
+ if (Pkg.end() == true) {
+ if (unlikely(Owner->NewPackage(Pkg, PackageName, Arch) == false))
+ return false;
+ }
+
+ /* Caching the old end point speeds up generation substantially */
+ if (OldDepVer != Ver) {
+ OldDepLast = NULL;
+ OldDepVer = Ver;
+ }
+
+ return Owner->NewDepends(Pkg, Ver, idxVersion, Op, Type, OldDepLast);
}
+ else
+ {
+ /* Caching the old end point speeds up generation substantially */
+ if (OldDepVer != Ver) {
+ OldDepLast = NULL;
+ OldDepVer = Ver;
+ }
- return Owner->NewDepends(Pkg, Ver, Version, Op, Type, OldDepLast);
+ for (Pkg = Grp.PackageList(); Pkg.end() == false; Pkg = Grp.NextPkg(Pkg))
+ {
+ if (Owner->NewDepends(Pkg, Ver, idxVersion, Op, Type, OldDepLast) == false)
+ return false;
+ }
+ }
+ return true;
}
/*}}}*/
// ListParser::NewProvides - Create a Provides element /*{{{*/
-bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator &Ver,
+bool pkgCacheListParser::NewProvides(pkgCache::VerIterator &Ver,
const string &PkgName,
const string &PkgArch,
const string &Version,
// 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
map_stringitem_t idxProvideVersion = 0;
if (Version.empty() == false) {
- idxProvideVersion = StoreString(VERSIONNUMBER, Version);
+ idxProvideVersion = StoreString(pkgCacheGenerator::VERSIONNUMBER, Version);
if (unlikely(idxProvideVersion == 0))
return false;
}
}
/*}}}*/
// ListParser::NewProvidesAllArch - add provides for all architectures /*{{{*/
-bool pkgCacheGenerator::ListParser::NewProvidesAllArch(pkgCache::VerIterator &Ver, string const &Package,
+bool pkgCacheListParser::NewProvidesAllArch(pkgCache::VerIterator &Ver, string const &Package,
string const &Version, uint8_t const Flags) {
pkgCache &Cache = Owner->Cache;
- pkgCache::GrpIterator const Grp = Cache.FindGrp(Package);
+ pkgCache::GrpIterator Grp = Cache.FindGrp(Package);
+ Dynamic<pkgCache::GrpIterator> DynGrp(Grp);
+
if (Grp.end() == true)
return NewProvides(Ver, Package, Cache.NativeArch(), Version, Flags);
else
{
map_stringitem_t idxProvideVersion = 0;
if (Version.empty() == false) {
- idxProvideVersion = StoreString(VERSIONNUMBER, Version);
+ idxProvideVersion = StoreString(pkgCacheGenerator::VERSIONNUMBER, Version);
if (unlikely(idxProvideVersion == 0))
return false;
}
bool const isImplicit = (Flags & pkgCache::Flag::MultiArchImplicit) == pkgCache::Flag::MultiArchImplicit;
bool const isArchSpecific = (Flags & pkgCache::Flag::ArchSpecific) == pkgCache::Flag::ArchSpecific;
- pkgCache::PkgIterator const OwnerPkg = Ver.ParentPkg();
- for (pkgCache::PkgIterator Pkg = Grp.PackageList(); Pkg.end() == false; Pkg = Grp.NextPkg(Pkg))
+ pkgCache::PkgIterator OwnerPkg = Ver.ParentPkg();
+ Dynamic<pkgCache::PkgIterator> DynOwnerPkg(OwnerPkg);
+ pkgCache::PkgIterator Pkg;
+ Dynamic<pkgCache::PkgIterator> DynPkg(Pkg);
+ for (Pkg = Grp.PackageList(); Pkg.end() == false; Pkg = Grp.NextPkg(Pkg))
{
if (isImplicit && OwnerPkg == Pkg)
continue;
return true;
}
/*}}}*/
-bool pkgCacheGenerator::ListParser::SameVersion(unsigned short const Hash,/*{{{*/
+bool pkgCacheListParser::SameVersion(unsigned short const Hash, /*{{{*/
pkgCache::VerIterator const &Ver)
{
return Hash == Ver->Hash;
/* 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,
+class APT_HIDDEN ScopedErrorRevert {
+public:
+ ScopedErrorRevert() { _error->PushToStack(); }
+ ~ScopedErrorRevert() { _error->RevertToStack(); }
+};
+static bool CheckValidity(const string &CacheFile,
pkgSourceList &List,
- FileIterator Start,
- FileIterator End,
+ 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)
{
if (Debug == true)
- std::clog << "CacheFile doesn't exist" << std::endl;
+ std::clog << "CacheFile " << CacheFile << " doesn't exist" << std::endl;
return false;
}
// Map it
FileFd CacheF(CacheFile,FileFd::ReadOnly);
- SPtr<MMap> Map = new MMap(CacheF,0);
- pkgCache Cache(Map);
- if (_error->PendingError() == true || Map->Size() == 0)
+ std::unique_ptr<MMap> Map(new MMap(CacheF,0));
+ if (unlikely(Map->validData()) == false)
+ return false;
+ pkgCache Cache(Map.get());
+ if (_error->PendingError() || Map->Size() == 0)
{
if (Debug == true)
- std::clog << "Errors are pending or Map is empty()" << std::endl;
- _error->Discard();
+ std::clog << "Errors are pending or Map is empty() for " << CacheFile << std::endl;
return false;
}
- SPtrArray<bool> RlsVisited = new bool[Cache.HeaderP->ReleaseFileCount];
- memset(RlsVisited,0,sizeof(*RlsVisited)*Cache.HeaderP->ReleaseFileCount);
+ std::unique_ptr<bool[]> RlsVisited(new bool[Cache.HeaderP->ReleaseFileCount]);
+ memset(RlsVisited.get(),0,sizeof(RlsVisited[0])*Cache.HeaderP->ReleaseFileCount);
std::vector<pkgIndexFile *> Files;
for (pkgSourceList::const_iterator i = List.begin(); i != List.end(); ++i)
{
if (Debug == true)
std::clog << "with ID " << RlsFile->ID << " is valid" << std::endl;
- std::vector <pkgIndexFile *> *Indexes = (*i)->GetIndexFiles();
- for (std::vector<pkgIndexFile *>::const_iterator j = Indexes->begin(); j != Indexes->end(); ++j)
- if ((*j)->HasPackages())
- Files.push_back (*j);
+ std::vector <pkgIndexFile *> const * const Indexes = (*i)->GetIndexFiles();
+ std::copy_if(Indexes->begin(), Indexes->end(), std::back_inserter(Files),
+ [](pkgIndexFile const * const I) { return I->HasPackages(); });
}
for (unsigned I = 0; I != Cache.HeaderP->ReleaseFileCount; ++I)
if (RlsVisited[I] == false)
return false;
}
- for (; Start != End; ++Start)
- Files.push_back(*Start);
+ std::copy(Start, End, std::back_inserter(Files));
/* Now we check every index file, see if it is in the cache,
verify the IMS data and check that it is on the disk too.. */
- SPtrArray<bool> Visited = new bool[Cache.HeaderP->PackageFileCount];
- memset(Visited,0,sizeof(*Visited)*Cache.HeaderP->PackageFileCount);
+ std::unique_ptr<bool[]> Visited(new bool[Cache.HeaderP->PackageFileCount]);
+ memset(Visited.get(),0,sizeof(Visited[0])*Cache.HeaderP->PackageFileCount);
for (std::vector<pkgIndexFile *>::const_reverse_iterator PkgFile = Files.rbegin(); PkgFile != Files.rend(); ++PkgFile)
{
if (Debug == true)
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.UnGuard();
+ *OutMap = Map.release();
return true;
}
/*}}}*/
}
/*}}}*/
// BuildCache - Merge the list of index files into the cache /*{{{*/
-// ---------------------------------------------------------------------
-/* */
static bool BuildCache(pkgCacheGenerator &Gen,
- OpProgress *Progress,
+ OpProgress * const Progress,
map_filesize_t &CurrentSize,map_filesize_t TotalSize,
pkgSourceList const * const List,
- FileIterator Start, FileIterator End)
+ FileIterator const Start, FileIterator const End)
{
- std::vector<pkgIndexFile *> Files;
- bool const HasFileDeps = Gen.HasFileDeps();
+ bool mergeFailure = false;
+
+ auto const indexFileMerge = [&](pkgIndexFile * const I) {
+ if (I->HasPackages() == false || mergeFailure)
+ return;
+
+ if (I->Exists() == false)
+ return;
+
+ if (I->FindInCache(Gen.GetCache()).end() == false)
+ {
+ _error->Warning("Duplicate sources.list entry %s",
+ I->Describe().c_str());
+ return;
+ }
+
+ map_filesize_t const Size = I->Size();
+ if (Progress != NULL)
+ Progress->OverallProgress(CurrentSize, TotalSize, Size, _("Reading package lists"));
+ CurrentSize += Size;
+
+ if (I->Merge(Gen,Progress) == false)
+ mergeFailure = true;
+ };
if (List != NULL)
{
return false;
std::vector <pkgIndexFile *> *Indexes = (*i)->GetIndexFiles();
- for (std::vector<pkgIndexFile *>::const_iterator I = Indexes->begin(); I != Indexes->end(); ++I)
- {
- if (HasFileDeps)
- Files.push_back(*I);
-
- if ((*I)->HasPackages() == false)
- continue;
-
- if ((*I)->Exists() == false)
- continue;
-
- if ((*I)->FindInCache(Gen.GetCache()).end() == false)
- {
- _error->Warning("Duplicate sources.list entry %s",
- (*I)->Describe().c_str());
- continue;
- }
-
- map_filesize_t Size = (*I)->Size();
- if (Progress != NULL)
- Progress->OverallProgress(CurrentSize,TotalSize,Size,_("Reading package lists"));
- CurrentSize += Size;
-
- if ((*I)->Merge(Gen,Progress) == false)
- return false;
- }
+ if (Indexes != NULL)
+ std::for_each(Indexes->begin(), Indexes->end(), indexFileMerge);
+ if (mergeFailure)
+ return false;
}
}
- Gen.SelectReleaseFile("", "");
- FileIterator I;
- for (I = Start; I != End; ++I)
+ if (Start != End)
{
- if (HasFileDeps)
- Files.push_back(*I);
-
- if ((*I)->HasPackages() == false)
- continue;
-
- if ((*I)->Exists() == false)
- continue;
-
- if ((*I)->FindInCache(Gen.GetCache()).end() == false)
- {
- _error->Warning("Duplicate sources.list entry %s",
- (*I)->Describe().c_str());
- continue;
- }
-
- map_filesize_t Size = (*I)->Size();
- if (Progress != NULL)
- Progress->OverallProgress(CurrentSize,TotalSize,Size,_("Reading package lists"));
- CurrentSize += Size;
-
- if ((*I)->Merge(Gen,Progress) == false)
+ Gen.SelectReleaseFile("", "");
+ std::for_each(Start, End, indexFileMerge);
+ if (mergeFailure)
return false;
- }
-
- if (HasFileDeps == true)
- {
- if (Progress != NULL)
- Progress->Done();
- TotalSize = ComputeSize(List, Start, End);
- CurrentSize = 0;
- for (std::vector<pkgIndexFile *>::const_iterator I = Files.begin(); I != Files.end(); ++I)
- {
- map_filesize_t Size = (*I)->Size();
- if (Progress != NULL)
- Progress->OverallProgress(CurrentSize,TotalSize,Size,_("Collecting File Provides"));
- CurrentSize += Size;
- if ((*I)->MergeFileProvides(Gen,Progress) == false)
- return false;
- }
}
-
return true;
}
/*}}}*/
-// CacheGenerator::CreateDynamicMMap - load an mmap with configuration options /*{{{*/
-DynamicMMap* pkgCacheGenerator::CreateDynamicMMap(FileFd *CacheF, unsigned long Flags) {
+// CacheGenerator::MakeStatusCache - Construct the status cache /*{{{*/
+// ---------------------------------------------------------------------
+/* This makes sure that the status cache (the cache that has all
+ index files from the sources list and all local ones) is ready
+ to be mmaped. If OutMap is not zero then a MMap object representing
+ the cache will be stored there. This is pretty much mandetory if you
+ are using AllowMem. AllowMem lets the function be run as non-root
+ where it builds the cache 'fast' into a memory buffer. */
+static DynamicMMap* CreateDynamicMMap(FileFd * const CacheF, unsigned long Flags)
+{
map_filesize_t const MapStart = _config->FindI("APT::Cache-Start", 24*1024*1024);
map_filesize_t const MapGrow = _config->FindI("APT::Cache-Grow", 1*1024*1024);
map_filesize_t const MapLimit = _config->FindI("APT::Cache-Limit", 0);
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
- index files from the sources list and all local ones) is ready
- to be mmaped. If OutMap is not zero then a MMap object representing
- the cache will be stored there. This is pretty much mandetory if you
- are using AllowMem. AllowMem lets the function be run as non-root
- where it builds the cache 'fast' into a memory buffer. */
-APT_DEPRECATED bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress,
+static bool writeBackMMapToFile(pkgCacheGenerator * const Gen, DynamicMMap * const Map,
+ std::string const &FileName)
+{
+ FileFd SCacheF(FileName, FileFd::WriteAtomic);
+ if (SCacheF.IsOpen() == false || SCacheF.Failed())
+ return false;
+
+ fchmod(SCacheF.Fd(),0644);
+
+ // Write out the main data
+ if (SCacheF.Write(Map->Data(),Map->Size()) == false)
+ return _error->Error(_("IO Error saving source cache"));
+ SCacheF.Sync();
+
+ // Write out the proper header
+ Gen->GetCache().HeaderP->Dirty = false;
+ if (SCacheF.Seek(0) == false ||
+ SCacheF.Write(Map->Data(),sizeof(*Gen->GetCache().HeaderP)) == false)
+ return _error->Error(_("IO Error saving source cache"));
+ Gen->GetCache().HeaderP->Dirty = true;
+ SCacheF.Sync();
+ return true;
+}
+static bool loadBackMMapFromFile(std::unique_ptr<pkgCacheGenerator> &Gen,
+ std::unique_ptr<DynamicMMap> &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());
+ 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;
+}
+bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress,
MMap **OutMap, bool AllowMem)
{ return pkgCacheGenerator::MakeStatusCache(List, &Progress, OutMap, AllowMem); }
bool pkgCacheGenerator::MakeStatusCache(pkgSourceList &List,OpProgress *Progress,
- MMap **OutMap,bool AllowMem)
+ MMap **OutMap,bool)
{
+ // FIXME: deprecate the ignored AllowMem parameter
bool const Debug = _config->FindB("Debug::pkgCacheGen", false);
std::vector<pkgIndexFile *> Files;
- /*
- for (std::vector<metaIndex *>::const_iterator i = List.begin();
- i != List.end();
- ++i)
- {
- std::vector <pkgIndexFile *> *Indexes = (*i)->GetIndexFiles();
- for (std::vector<pkgIndexFile *>::const_iterator j = Indexes->begin();
- j != Indexes->end();
- ++j)
- Files.push_back (*j);
- }
-*/
if (_system->AddStatusFiles(Files) == false)
return false;
CreateDirectory(dir, flNotFile(SrcCacheFile));
}
- // Decide if we can write to the cache
- bool Writeable = false;
- if (CacheFile.empty() == false)
- Writeable = access(flNotFile(CacheFile).c_str(),W_OK) == 0;
- else
- if (SrcCacheFile.empty() == false)
- Writeable = access(flNotFile(SrcCacheFile).c_str(),W_OK) == 0;
- if (Debug == true)
- std::clog << "Do we have write-access to the cache files? " << (Writeable ? "YES" : "NO") << std::endl;
-
- if (Writeable == false && AllowMem == false && CacheFile.empty() == false)
- return _error->Error(_("Unable to write to %s"),flNotFile(CacheFile).c_str());
-
if (Progress != NULL)
Progress->OverallProgress(0,1,1,_("Reading package lists"));
- // Cache is OK, Fin.
- if (CheckValidity(CacheFile, List, Files.begin(),Files.end(),OutMap) == true)
+ bool pkgcache_fine = false;
+ bool srcpkgcache_fine = false;
+ bool volatile_fine = List.GetVolatileFiles().empty();
+
+ if (CheckValidity(CacheFile, List, Files.begin(), Files.end(), volatile_fine ? OutMap : NULL) == true)
{
- if (Progress != NULL)
- Progress->OverallProgress(1,1,1,_("Reading package lists"));
if (Debug == true)
- std::clog << "pkgcache.bin is valid - no need to build anything" << std::endl;
- return true;
+ std::clog << "pkgcache.bin is valid - no need to build any cache" << std::endl;
+ pkgcache_fine = true;
+ srcpkgcache_fine = true;
}
- else if (Debug == true)
- std::clog << "pkgcache.bin is NOT valid" << std::endl;
-
- /* At this point we know we need to reconstruct the package cache,
- begin. */
- SPtr<FileFd> CacheF;
- SPtr<DynamicMMap> Map;
- if (Writeable == true && CacheFile.empty() == false)
+ if (pkgcache_fine == false)
{
- _error->PushToStack();
- unlink(CacheFile.c_str());
- CacheF = new FileFd(CacheFile,FileFd::WriteAtomic);
- fchmod(CacheF->Fd(),0644);
- Map = CreateDynamicMMap(CacheF, MMap::Public);
- if (_error->PendingError() == 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 (CheckValidity(SrcCacheFile, List, Files.end(), Files.end()) == true)
{
- _error->MergeWithStack();
if (Debug == true)
- std::clog << "Open filebased MMap" << std::endl;
+ std::clog << "srcpkgcache.bin is valid - it can be reused" << std::endl;
+ srcpkgcache_fine = true;
}
}
- if (Writeable == false || CacheFile.empty() == true)
+
+ if (volatile_fine == true && srcpkgcache_fine == true && pkgcache_fine == true)
{
- // Just build it in memory..
- Map = CreateDynamicMMap(NULL);
- if (Debug == true)
- std::clog << "Open memory Map (not filebased)" << std::endl;
+ if (Progress != NULL)
+ Progress->OverallProgress(1,1,1,_("Reading package lists"));
+ return true;
}
-
- // Lets try the source cache.
- map_filesize_t CurrentSize = 0;
- map_filesize_t TotalSize = 0;
- if (CheckValidity(SrcCacheFile, List, Files.end(),
- Files.end()) == true)
+
+ bool Writeable = false;
+ if (srcpkgcache_fine == false || pkgcache_fine == false)
{
+ if (CacheFile.empty() == false)
+ Writeable = access(flNotFile(CacheFile).c_str(),W_OK) == 0;
+ else if (SrcCacheFile.empty() == false)
+ Writeable = access(flNotFile(SrcCacheFile).c_str(),W_OK) == 0;
+
if (Debug == true)
- std::clog << "srcpkgcache.bin is valid - populate MMap with it." << std::endl;
- // Preload the map with the source cache
- FileFd SCacheF(SrcCacheFile,FileFd::ReadOnly);
- map_pointer_t const alloc = Map->RawAllocate(SCacheF.Size());
- if ((alloc == 0 && _error->PendingError())
- || SCacheF.Read((unsigned char *)Map->Data() + alloc,
- SCacheF.Size()) == false)
- return false;
+ std::clog << "Do we have write-access to the cache files? " << (Writeable ? "YES" : "NO") << std::endl;
+ }
- TotalSize = ComputeSize(NULL, Files.begin(), Files.end());
+ // At this point we know we need to construct something, so get storage ready
+ std::unique_ptr<DynamicMMap> Map(CreateDynamicMMap(NULL, 0));
+ if (unlikely(Map->validData()) == false)
+ return false;
+ if (Debug == true)
+ std::clog << "Open memory Map (not filebased)" << std::endl;
- // Build the status cache
- pkgCacheGenerator Gen(Map.Get(),Progress);
- if (_error->PendingError() == true)
- return false;
- if (BuildCache(Gen, Progress, CurrentSize, TotalSize, NULL,
- Files.begin(),Files.end()) == false)
+ std::unique_ptr<pkgCacheGenerator> Gen{nullptr};
+ map_filesize_t CurrentSize = 0;
+ std::vector<pkgIndexFile*> VolatileFiles = List.GetVolatileFiles();
+ map_filesize_t TotalSize = ComputeSize(NULL, VolatileFiles.begin(), VolatileFiles.end());
+ if (srcpkgcache_fine == true && pkgcache_fine == false)
+ {
+ if (Debug == true)
+ std::clog << "srcpkgcache.bin was valid - populate MMap with it" << std::endl;
+ if (loadBackMMapFromFile(Gen, Map, Progress, SrcCacheFile) == false)
return false;
+ srcpkgcache_fine = true;
+ TotalSize += ComputeSize(NULL, Files.begin(), Files.end());
}
- else
+ else if (srcpkgcache_fine == false)
{
if (Debug == true)
std::clog << "srcpkgcache.bin is NOT valid - rebuild" << std::endl;
- TotalSize = ComputeSize(&List, Files.begin(),Files.end());
-
- // Build the source cache
- pkgCacheGenerator Gen(Map.Get(),Progress);
- if (_error->PendingError() == true)
- return false;
- if (BuildCache(Gen, Progress, CurrentSize, TotalSize, &List,
- Files.end(),Files.end()) == false)
+ Gen.reset(new pkgCacheGenerator(Map.get(),Progress));
+
+ TotalSize += ComputeSize(&List, Files.begin(),Files.end());
+ if (BuildCache(*Gen, Progress, CurrentSize, TotalSize, &List,
+ Files.end(),Files.end()) == false)
return false;
-
- // Write it back
+
if (Writeable == true && SrcCacheFile.empty() == false)
- {
- FileFd SCacheF(SrcCacheFile,FileFd::WriteAtomic);
- if (_error->PendingError() == true)
+ if (writeBackMMapToFile(Gen.get(), Map.get(), SrcCacheFile) == false)
return false;
-
- fchmod(SCacheF.Fd(),0644);
-
- // Write out the main data
- if (SCacheF.Write(Map->Data(),Map->Size()) == false)
- return _error->Error(_("IO Error saving source cache"));
- SCacheF.Sync();
-
- // Write out the proper header
- Gen.GetCache().HeaderP->Dirty = false;
- if (SCacheF.Seek(0) == false ||
- SCacheF.Write(Map->Data(),sizeof(*Gen.GetCache().HeaderP)) == false)
- return _error->Error(_("IO Error saving source cache"));
- Gen.GetCache().HeaderP->Dirty = true;
- SCacheF.Sync();
- }
-
- // Build the status cache
- if (BuildCache(Gen, Progress, CurrentSize, TotalSize, NULL,
- Files.begin(), Files.end()) == false)
+ }
+
+ if (pkgcache_fine == false)
+ {
+ if (Debug == true)
+ std::clog << "Building status cache in pkgcache.bin now" << std::endl;
+ if (BuildCache(*Gen, Progress, CurrentSize, TotalSize, NULL,
+ Files.begin(), Files.end()) == false)
return false;
+
+ if (Writeable == true && CacheFile.empty() == false)
+ if (writeBackMMapToFile(Gen.get(), Map.get(), CacheFile) == false)
+ return false;
}
+
if (Debug == true)
- std::clog << "Caches are ready for shipping" << std::endl;
+ std::clog << "Caches done. Now bring in the volatile files (if any)" << std::endl;
- if (_error->PendingError() == true)
- return false;
- if (OutMap != 0)
+ if (volatile_fine == false)
{
- if (CacheF != 0)
+ if (Gen == nullptr)
{
- delete Map.UnGuard();
- *OutMap = new MMap(*CacheF,0);
+ if (Debug == true)
+ std::clog << "Populate new MMap with cachefile contents" << std::endl;
+ if (loadBackMMapFromFile(Gen, Map, Progress, CacheFile) == false)
+ return false;
}
- else
- {
- *OutMap = Map.UnGuard();
- }
+
+ Files = List.GetVolatileFiles();
+ if (BuildCache(*Gen, Progress, CurrentSize, TotalSize, NULL,
+ Files.begin(), Files.end()) == false)
+ return false;
}
-
+
+ if (OutMap != nullptr)
+ *OutMap = Map.release();
+
+ if (Debug == true)
+ std::clog << "Everything is ready for shipping" << std::endl;
return true;
}
/*}}}*/
// 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)
{
if (_system->AddStatusFiles(Files) == false)
return false;
- SPtr<DynamicMMap> Map = CreateDynamicMMap(NULL);
+ ScopedErrorMerge sem;
+ std::unique_ptr<DynamicMMap> 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"));
- pkgCacheGenerator Gen(Map.Get(),Progress);
+ pkgCacheGenerator Gen(Map.get(),Progress);
if (_error->PendingError() == true)
return false;
if (BuildCache(Gen,Progress,CurrentSize,TotalSize, NULL,
if (_error->PendingError() == true)
return false;
- *OutMap = Map.UnGuard();
+ *OutMap = Map.release();
return true;
}
return false;
}
/*}}}*/
-// CacheGenerator::FinishCache /*{{{*/
-bool pkgCacheGenerator::FinishCache(OpProgress * /*Progress*/)
-{
- return true;
-}
- /*}}}*/
-pkgCacheGenerator::ListParser::ListParser() : Owner(NULL), OldDepLast(NULL), FoundFileDeps(false), d(NULL) {}
-pkgCacheGenerator::ListParser::~ListParser() {}
+pkgCacheListParser::pkgCacheListParser() : Owner(NULL), OldDepLast(NULL), d(NULL) {}
+pkgCacheListParser::~pkgCacheListParser() {}
projects / apt.git / blobdiff