#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;
MD5SumValue const &CurMd5, std::string const &CurLang);
using std::string;
+using APT::StringView;
// CacheGenerator::pkgCacheGenerator - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* 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)
+{
+}
+bool pkgCacheGenerator::Start()
{
- 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)
- return;
+ _error->PushToStack();
+ Map.RawAllocate(sizeof(pkgCache::Header));
+ bool const newError = _error->PendingError();
+ _error->MergeWithStack();
+ if (newError)
+ return false;
+ if (Map.Size() <= 0)
+ return false;
Map.UsePools(*Cache.HeaderP->Pools,sizeof(Cache.HeaderP->Pools)/sizeof(Cache.HeaderP->Pools[0]));
// make room for the hashtables for packages and groups
if (Map.RawAllocate(2 * (Cache.HeaderP->GetHashTableSize() * sizeof(map_pointer_t))) == 0)
- return;
+ return false;
map_stringitem_t const idxVerSysName = WriteStringInMap(_system->VS->Label);
if (unlikely(idxVerSysName == 0))
- return;
- Cache.HeaderP->VerSysName = idxVerSysName;
+ return false;
map_stringitem_t const idxArchitecture = StoreString(MIXED, _config->Find("APT::Architecture"));
if (unlikely(idxArchitecture == 0))
- return;
- Cache.HeaderP->Architecture = idxArchitecture;
+ return false;
+ map_stringitem_t idxArchitectures;
std::vector<std::string> archs = APT::Configuration::getArchitectures();
if (archs.size() > 1)
std::string list = *a;
for (++a; a != archs.end(); ++a)
list.append(",").append(*a);
- map_stringitem_t const idxArchitectures = WriteStringInMap(list);
+ idxArchitectures = WriteStringInMap(list);
if (unlikely(idxArchitectures == 0))
- return;
- Cache.HeaderP->SetArchitectures(idxArchitectures);
+ return false;
}
else
- Cache.HeaderP->SetArchitectures(idxArchitecture);
+ idxArchitectures = idxArchitecture;
+ Cache.HeaderP = (pkgCache::Header *)Map.Data();
+ Cache.HeaderP->VerSysName = idxVerSysName;
+ Cache.HeaderP->Architecture = idxArchitecture;
+ Cache.HeaderP->SetArchitectures(idxArchitectures);
+
+ // Calculate the hash for the empty map, so ReMap does not fail
+ Cache.HeaderP->CacheFileSize = Cache.CacheHash();
Cache.ReMap();
}
else
Cache.ReMap();
Map.UsePools(*Cache.HeaderP->Pools,sizeof(Cache.HeaderP->Pools)/sizeof(Cache.HeaderP->Pools[0]));
if (Cache.VS != _system->VS)
- {
- _error->Error(_("Cache has an incompatible versioning system"));
- return;
- }
+ return _error->Error(_("Cache has an incompatible versioning system"));
}
Cache.HeaderP->Dirty = true;
Map.Sync(0,sizeof(pkgCache::Header));
+ return true;
}
/*}}}*/
// CacheGenerator::~pkgCacheGenerator - Destructor /*{{{*/
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;
Cache.HeaderP->Dirty = false;
- Cache.HeaderP->CacheFileSize = Map.Size();
+ Cache.HeaderP->CacheFileSize = Cache.CacheHash();
+
+ if (_config->FindB("Debug::pkgCacheGen", false))
+ std::clog << "Produced cache with hash " << Cache.HeaderP->CacheFileSize << std::endl;
Map.Sync(0,sizeof(pkgCache::Header));
}
/*}}}*/
-void pkgCacheGenerator::ReMap(void const * const oldMap, void const * const newMap) {/*{{{*/
+void pkgCacheGenerator::ReMap(void const * const oldMap, void const * const newMap, size_t oldSize) {/*{{{*/
+ // Prevent multiple remaps of the same iterator. If seen.insert(iterator)
+ // returns (something, true) the iterator was not yet seen and we can
+ // remap it.
+ std::unordered_set<void *> seen;
if (oldMap == newMap)
return;
for (std::vector<pkgCache::GrpIterator*>::const_iterator i = Dynamic<pkgCache::GrpIterator>::toReMap.begin();
i != Dynamic<pkgCache::GrpIterator>::toReMap.end(); ++i)
- (*i)->ReMap(oldMap, newMap);
+ if (std::get<1>(seen.insert(*i)) == true)
+ (*i)->ReMap(oldMap, newMap);
for (std::vector<pkgCache::PkgIterator*>::const_iterator i = Dynamic<pkgCache::PkgIterator>::toReMap.begin();
i != Dynamic<pkgCache::PkgIterator>::toReMap.end(); ++i)
- (*i)->ReMap(oldMap, newMap);
+ if (std::get<1>(seen.insert(*i)) == true)
+ (*i)->ReMap(oldMap, newMap);
for (std::vector<pkgCache::VerIterator*>::const_iterator i = Dynamic<pkgCache::VerIterator>::toReMap.begin();
i != Dynamic<pkgCache::VerIterator>::toReMap.end(); ++i)
- (*i)->ReMap(oldMap, newMap);
+ if (std::get<1>(seen.insert(*i)) == true)
+ (*i)->ReMap(oldMap, newMap);
for (std::vector<pkgCache::DepIterator*>::const_iterator i = Dynamic<pkgCache::DepIterator>::toReMap.begin();
i != Dynamic<pkgCache::DepIterator>::toReMap.end(); ++i)
- (*i)->ReMap(oldMap, newMap);
+ if (std::get<1>(seen.insert(*i)) == true)
+ (*i)->ReMap(oldMap, newMap);
for (std::vector<pkgCache::DescIterator*>::const_iterator i = Dynamic<pkgCache::DescIterator>::toReMap.begin();
i != Dynamic<pkgCache::DescIterator>::toReMap.end(); ++i)
- (*i)->ReMap(oldMap, newMap);
+ if (std::get<1>(seen.insert(*i)) == true)
+ (*i)->ReMap(oldMap, newMap);
for (std::vector<pkgCache::PrvIterator*>::const_iterator i = Dynamic<pkgCache::PrvIterator>::toReMap.begin();
i != Dynamic<pkgCache::PrvIterator>::toReMap.end(); ++i)
- (*i)->ReMap(oldMap, newMap);
+ if (std::get<1>(seen.insert(*i)) == true)
+ (*i)->ReMap(oldMap, newMap);
for (std::vector<pkgCache::PkgFileIterator*>::const_iterator i = Dynamic<pkgCache::PkgFileIterator>::toReMap.begin();
i != Dynamic<pkgCache::PkgFileIterator>::toReMap.end(); ++i)
- (*i)->ReMap(oldMap, newMap);
+ if (std::get<1>(seen.insert(*i)) == true)
+ (*i)->ReMap(oldMap, newMap);
for (std::vector<pkgCache::RlsFileIterator*>::const_iterator i = Dynamic<pkgCache::RlsFileIterator>::toReMap.begin();
i != Dynamic<pkgCache::RlsFileIterator>::toReMap.end(); ++i)
- (*i)->ReMap(oldMap, newMap);
+ if (std::get<1>(seen.insert(*i)) == true)
+ (*i)->ReMap(oldMap, newMap);
+ for (APT::StringView* ViewP : Dynamic<APT::StringView>::toReMap) {
+ if (std::get<1>(seen.insert(ViewP)) == false)
+ continue;
+ // Ignore views outside of the cache.
+ if (ViewP->data() < static_cast<const char*>(oldMap)
+ || ViewP->data() > static_cast<const char*>(oldMap) + oldSize)
+ continue;
+ const char *data = ViewP->data() + (static_cast<const char*>(newMap) - static_cast<const char*>(oldMap));
+ *ViewP = StringView(data , ViewP->size());
+ }
} /*}}}*/
// CacheGenerator::WriteStringInMap /*{{{*/
map_stringitem_t pkgCacheGenerator::WriteStringInMap(const char *String,
const unsigned long &Len) {
+ size_t oldSize = Map.Size();
void const * const oldMap = Map.Data();
map_stringitem_t const index = Map.WriteString(String, Len);
if (index != 0)
- ReMap(oldMap, Map.Data());
+ ReMap(oldMap, Map.Data(), oldSize);
return index;
}
/*}}}*/
// CacheGenerator::WriteStringInMap /*{{{*/
map_stringitem_t pkgCacheGenerator::WriteStringInMap(const char *String) {
+ size_t oldSize = Map.Size();
void const * const oldMap = Map.Data();
map_stringitem_t const index = Map.WriteString(String);
if (index != 0)
- ReMap(oldMap, Map.Data());
+ ReMap(oldMap, Map.Data(), oldSize);
return index;
}
/*}}}*/
map_pointer_t pkgCacheGenerator::AllocateInMap(const unsigned long &size) {/*{{{*/
+ size_t oldSize = Map.Size();
void const * const oldMap = Map.Data();
map_pointer_t const index = Map.Allocate(size);
if (index != 0)
- ReMap(oldMap, Map.Data());
+ ReMap(oldMap, Map.Data(), oldSize);
return index;
}
/*}}}*/
if (Counter % 100 == 0 && Progress != 0)
Progress->Progress(List.Offset());
- string Arch = List.Architecture();
- string const Version = List.Version();
+ APT::StringView Arch = List.Architecture();
+ Dynamic<APT::StringView> DynArch(Arch);
+ APT::StringView Version = List.Version();
+ Dynamic<APT::StringView> DynVersion(Version);
if (Version.empty() == true && Arch.empty() == true)
{
// package descriptions
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 /*{{{*/
// Find the right version to write the description
MD5SumValue CurMd5 = List.Description_md5();
- if (CurMd5.Value().empty() == true && List.Description("").empty() == true)
- return true;
std::vector<std::string> availDesc = List.AvailableDescriptionLanguages();
for (Ver = Pkg.VersionList(); Ver.end() == false; ++Ver)
{
/*}}}*/
// CacheGenerator::MergeListVersion /*{{{*/
bool pkgCacheGenerator::MergeListVersion(ListParser &List, pkgCache::PkgIterator &Pkg,
- std::string const &Version, pkgCache::VerIterator* &OutVer)
+ APT::StringView const &Version, pkgCache::VerIterator* &OutVer)
{
pkgCache::VerIterator Ver = Pkg.VersionList();
Dynamic<pkgCache::VerIterator> DynVer(Ver);
int Res = 1;
for (; Ver.end() == false; LastVer = &Ver->NextVer, ++Ver)
{
- Res = Cache.VS->CmpVersion(Version,Ver.VerStr());
+ char const * const VerStr = Ver.VerStr();
+ Res = Cache.VS->DoCmpVersion(Version.data(), Version.data() + Version.length(),
+ VerStr, VerStr + strlen(VerStr));
// Version is higher as current version - insert here
if (Res > 0)
break;
// 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)"),
/* Record the Description(s) based on their master md5sum */
MD5SumValue CurMd5 = List.Description_md5();
- if (CurMd5.Value().empty() == true && List.Description("").empty() == true)
- return true;
/* Before we add a new description we first search in the group for
a version with a description of the same MD5 - if so we reuse this
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 */
-bool pkgCacheGenerator::NewGroup(pkgCache::GrpIterator &Grp, const string &Name)
+bool pkgCacheGenerator::NewGroup(pkgCache::GrpIterator &Grp, StringView Name)
{
+ Dynamic<StringView> DName(Name);
Grp = Cache.FindGrp(Name);
if (Grp.end() == false)
return true;
// Insert it into the hash table
unsigned long const Hash = Cache.Hash(Name);
map_pointer_t *insertAt = &Cache.HeaderP->GrpHashTableP()[Hash];
- while (*insertAt != 0 && strcasecmp(Name.c_str(), Cache.StrP + (Cache.GrpP + *insertAt)->Name) > 0)
+
+ while (*insertAt != 0 && Name.compare(Cache.ViewString((Cache.GrpP + *insertAt)->Name)) > 0)
insertAt = &(Cache.GrpP + *insertAt)->Next;
Grp->Next = *insertAt;
*insertAt = Group;
// CacheGenerator::NewPackage - Add a new package /*{{{*/
// ---------------------------------------------------------------------
/* This creates a new package structure and adds it to the hash table */
-bool pkgCacheGenerator::NewPackage(pkgCache::PkgIterator &Pkg,const string &Name,
- const string &Arch) {
+bool pkgCacheGenerator::NewPackage(pkgCache::PkgIterator &Pkg, StringView Name,
+ StringView Arch) {
pkgCache::GrpIterator Grp;
+ Dynamic<StringView> DName(Name);
+ Dynamic<StringView> DArch(Arch);
Dynamic<pkgCache::GrpIterator> DynGrp(Grp);
if (unlikely(NewGroup(Grp, Name) == false))
return false;
// Insert it into the hash table
map_id_t const Hash = Cache.Hash(Name);
map_pointer_t *insertAt = &Cache.HeaderP->PkgHashTableP()[Hash];
- while (*insertAt != 0 && strcasecmp(Name.c_str(), Cache.StrP + (Cache.GrpP + (Cache.PkgP + *insertAt)->Group)->Name) > 0)
+ while (*insertAt != 0 && Name.compare(Cache.StrP + (Cache.GrpP + (Cache.PkgP + *insertAt)->Group)->Name) > 0)
insertAt = &(Cache.PkgP + *insertAt)->NextPackage;
Pkg->NextPackage = *insertAt;
*insertAt = Package;
}
else // Group the Packages together
{
- // but first get implicit provides done
- if (APT::Configuration::checkArchitecture(Pkg.Arch()) == true)
+ // if sibling is provided by another package, this one is too
{
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 (APT::Configuration::checkArchitecture(Ver.ParentPkg().Arch()) == false)
+ continue;
if (NewProvides(Ver, Pkg, Prv->ProvideVersion, Prv->Flags) == false)
return false;
+ }
}
+ }
+ }
+ // let M-A:foreign package siblings provide this package
+ {
+ 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))
+ {
+ if (APT::Configuration::checkArchitecture(P.Arch()) == false)
+ continue;
+ 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)
- for (pkgCache::DepIterator Dep = M.RevDependsList(); Dep.end() == false; ++Dep)
+ 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;
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
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.rfind(':');
+ StringView ArchA = Name.substr(found + 1);
+ if (ArchA != "any")
+ {
+ // ArchA is used inside the loop which might remap (NameA is not used)
+ Dynamic<StringView> DynArchA(ArchA);
+ StringView NameA = Name.substr(0, found);
+ pkgCache::PkgIterator PkgA = Cache.FindPkg(NameA, ArchA);
+ Dynamic<pkgCache::PkgIterator> DynPkgA(PkgA);
+ if (PkgA.end())
+ {
+ Dynamic<StringView> DynNameA(NameA);
+ if (NewPackage(PkgA, NameA, ArchA) == false)
+ return false;
+ }
+ if (unlikely(PkgA.end()))
+ return _error->Fatal("NewPackage was successful for %s:%s,"
+ "but the package doesn't exist anyhow!",
+ NameA.to_string().c_str(), ArchA.to_string().c_str());
+ else
+ {
+ 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;
}
/*}}}*/
pkgCache::PkgIterator &P,
pkgCache::VerIterator &V)
{
- // 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();
+ APT::StringView Arch = P.Arch() == NULL ? "" : P.Arch();
+ Dynamic<APT::StringView> DynArch(Arch);
map_pointer_t *OldDepLast = NULL;
/* MultiArch handling introduces a lot of implicit Dependencies:
- MultiArch: same → Co-Installable if they have the same version
// ---------------------------------------------------------------------
/* This puts a version structure in the linked list */
map_pointer_t pkgCacheGenerator::NewVersion(pkgCache::VerIterator &Ver,
- const string &VerStr,
+ APT::StringView const &VerStr,
map_pointer_t const ParentPkg,
unsigned short const Hash,
map_pointer_t const Next)
continue;
for (pkgCache::VerIterator V = P.VersionList(); V.end() == false; ++V)
{
- int const cmp = strcmp(V.VerStr(), VerStr.c_str());
- if (cmp == 0)
+ int const cmp = strncmp(V.VerStr(), VerStr.data(), VerStr.length());
+ if (cmp == 0 && V.VerStr()[VerStr.length()] == '\0')
{
Ver->VerStr = V->VerStr;
return 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,
- const string &PackageName,
- const string &Arch,
- const string &Version,
+bool pkgCacheListParser::NewDepends(pkgCache::VerIterator &Ver,
+ StringView PackageName,
+ StringView Arch,
+ StringView Version,
uint8_t const Op,
uint8_t const Type)
{
pkgCache::GrpIterator Grp;
Dynamic<pkgCache::GrpIterator> DynGrp(Grp);
+ Dynamic<StringView> DynPackageName(PackageName);
+ Dynamic<StringView> DynArch(Arch);
+ Dynamic<StringView> DynVersion(Version);
if (unlikely(Owner->NewGroup(Grp, PackageName) == false))
return false;
- // Is it a file dependency?
- if (unlikely(PackageName[0] == '/'))
- FoundFileDeps = true;
-
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)
+ if (CmpOp == pkgCache::Dep::Equals && Version == Ver.VerStr())
idxVersion = Ver->VerStr;
if (idxVersion == 0)
{
- idxVersion = StoreString(VERSIONNUMBER, Version);
+ idxVersion = StoreString(pkgCacheGenerator::VERSIONNUMBER, Version);
if (unlikely(idxVersion == 0))
return false;
}
}
/*}}}*/
// ListParser::NewProvides - Create a Provides element /*{{{*/
-bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator &Ver,
- const string &PkgName,
- const string &PkgArch,
- const string &Version,
+bool pkgCacheListParser::NewProvides(pkgCache::VerIterator &Ver,
+ StringView PkgName,
+ StringView PkgArch,
+ StringView Version,
uint8_t const Flags)
{
pkgCache const &Cache = Owner->Cache;
+ Dynamic<StringView> DynPkgName(PkgName);
+ Dynamic<StringView> DynArch(PkgArch);
+ Dynamic<StringView> DynVersion(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,
- string const &Version, uint8_t const Flags) {
+bool pkgCacheListParser::NewProvidesAllArch(pkgCache::VerIterator &Ver, StringView Package,
+ StringView 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);
+ Dynamic<StringView> DynPackage(Package);
+ Dynamic<StringView> DynVersion(Version);
+
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;
map_stringitem_t pkgCacheGenerator::StoreString(enum StringType const type, const char *S,
unsigned int Size)
{
- std::string const key(S, Size);
-
- std::map<std::string,map_stringitem_t> * strings;
+ auto strings = &strMixed;
switch(type) {
case MIXED: strings = &strMixed; break;
case PKGNAME: strings = &strPkgNames; break;
case VERSIONNUMBER: strings = &strVersions; break;
case SECTION: strings = &strSections; break;
- default: _error->Fatal("Unknown enum type used for string storage of '%s'", key.c_str()); return 0;
+ default: _error->Fatal("Unknown enum type used for string storage of '%.*s'", Size, S); return 0;
}
- std::map<std::string,map_stringitem_t>::const_iterator const item = strings->find(key);
+ auto const item = strings->find({S, Size, nullptr, 0});
if (item != strings->end())
- return item->second;
+ return item->item;
map_stringitem_t const idxString = WriteStringInMap(S,Size);
- strings->insert(std::make_pair(key, idxString));
+ strings->insert({nullptr, Size, this, idxString});
return idxString;
}
/*}}}*/
/* 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,
- MMap **OutMap = 0)
+ FileIterator const Start,
+ FileIterator const End,
+ MMap **OutMap = 0,
+ pkgCache **OutCache = 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;
+ std::unique_ptr<pkgCache> CacheP(new pkgCache(Map.get()));
+ pkgCache &Cache = *CacheP.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();
+ if (OutCache != 0)
+ *OutCache = CacheP.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"));
+
+ // Write out the proper header
+ Gen->GetCache().HeaderP->Dirty = false;
+ Gen->GetCache().HeaderP->CacheFileSize = Gen->GetCache().CacheHash();
+ 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;
+ 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 Gen->Start();
+}
+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)
{
+ return pkgCacheGenerator::MakeStatusCache(List, Progress, OutMap, nullptr, true);
+}
+bool pkgCacheGenerator::MakeStatusCache(pkgSourceList &List,OpProgress *Progress,
+ MMap **OutMap,pkgCache **OutCache, 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,
+ volatile_fine ? OutCache : 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)
+ if (CheckValidity(SrcCacheFile, List, Files.end(), Files.end()) == 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
- {
- _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)
+ Gen.reset(new pkgCacheGenerator(Map.get(),Progress));
+ if (Gen->Start() == false)
return false;
- if (BuildCache(Gen, Progress, CurrentSize, TotalSize, &List,
- Files.end(),Files.end()) == false)
+
+ 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. " << (volatile_fine ? "No volatile files, so we are done here." : "Now bring in the volatile files") << 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);
- if (_error->PendingError() == true)
+ pkgCacheGenerator Gen(Map.get(),Progress);
+ if (Gen.Start() == false || _error->PendingError() == true)
return false;
if (BuildCache(Gen,Progress,CurrentSize,TotalSize, NULL,
Files.begin(), Files.end()) == false)
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