// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: pkgcachegen.cc,v 1.10 1998/07/16 06:08:38 jgg Exp $
+// $Id: pkgcachegen.cc,v 1.53.2.1 2003/12/24 23:09:17 mdz Exp $
/* ######################################################################
Package Cache Generator - Generator for the cache structure.
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
-#ifdef __GNUG__
-#pragma implementation "apt-pkg/pkgcachegen.h"
-#endif
+#define APT_COMPATIBILITY 986
#include <apt-pkg/pkgcachegen.h>
#include <apt-pkg/error.h>
#include <apt-pkg/version.h>
-#include <strutl.h>
+#include <apt-pkg/progress.h>
+#include <apt-pkg/sourcelist.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/aptconfiguration.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/sptr.h>
+#include <apt-pkg/pkgsystem.h>
+#include <apt-pkg/macros.h>
+
+#include <apt-pkg/tagfile.h>
+
+#include <apti18n.h>
+
+#include <vector>
#include <sys/stat.h>
#include <unistd.h>
+#include <errno.h>
+#include <stdio.h>
/*}}}*/
+typedef vector<pkgIndexFile *>::iterator FileIterator;
+template <typename Iter> std::vector<Iter*> pkgCacheGenerator::Dynamic<Iter>::toReMap;
// CacheGenerator::pkgCacheGenerator - Constructor /*{{{*/
// ---------------------------------------------------------------------
-/* We set the diry flag and make sure that is written to the disk */
-pkgCacheGenerator::pkgCacheGenerator(DynamicMMap &Map) : Map(Map), Cache(Map)
+/* 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),
+ FoundFileDeps(0)
{
+ CurrentFile = 0;
+ memset(UniqHash,0,sizeof(UniqHash));
+
if (_error->PendingError() == true)
return;
-
+
if (Map.Size() == 0)
{
- Map.RawAllocate(sizeof(pkgCache::Header));
+ // Setup the map interface..
+ Cache.HeaderP = (pkgCache::Header *)Map.Data();
+ if (Map.RawAllocate(sizeof(pkgCache::Header)) == 0 && _error->PendingError() == true)
+ return;
+
+ Map.UsePools(*Cache.HeaderP->Pools,sizeof(Cache.HeaderP->Pools)/sizeof(Cache.HeaderP->Pools[0]));
+
+ // Starting header
*Cache.HeaderP = pkgCache::Header();
+ map_ptrloc const idxVerSysName = WriteStringInMap(_system->VS->Label);
+ Cache.HeaderP->VerSysName = idxVerSysName;
+ map_ptrloc const idxArchitecture = WriteStringInMap(_config->Find("APT::Architecture"));
+ Cache.HeaderP->Architecture = idxArchitecture;
+ if (unlikely(idxVerSysName == 0 || idxArchitecture == 0))
+ return;
+ Cache.ReMap();
}
+ else
+ {
+ // Map directly from the existing file
+ 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;
+ }
+ }
+
Cache.HeaderP->Dirty = true;
Map.Sync(0,sizeof(pkgCache::Header));
- Map.UsePools(*Cache.HeaderP->Pools,sizeof(Cache.HeaderP->Pools)/sizeof(Cache.HeaderP->Pools[0]));
}
/*}}}*/
// CacheGenerator::~pkgCacheGenerator - Destructor /*{{{*/
Map.Sync(0,sizeof(pkgCache::Header));
}
/*}}}*/
+void pkgCacheGenerator::ReMap(void const * const oldMap, void const * const newMap) {/*{{{*/
+ if (oldMap == newMap)
+ return;
+
+ Cache.ReMap(false);
+
+ CurrentFile += (pkgCache::PackageFile*) newMap - (pkgCache::PackageFile*) oldMap;
+
+ for (size_t i = 0; i < _count(UniqHash); ++i)
+ if (UniqHash[i] != 0)
+ UniqHash[i] += (pkgCache::StringItem*) newMap - (pkgCache::StringItem*) oldMap;
+
+ for (std::vector<pkgCache::GrpIterator*>::const_iterator i = Dynamic<pkgCache::GrpIterator>::toReMap.begin();
+ i != Dynamic<pkgCache::GrpIterator>::toReMap.end(); ++i)
+ (*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);
+ for (std::vector<pkgCache::VerIterator*>::const_iterator i = Dynamic<pkgCache::VerIterator>::toReMap.begin();
+ i != Dynamic<pkgCache::VerIterator>::toReMap.end(); ++i)
+ (*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);
+ for (std::vector<pkgCache::DescIterator*>::const_iterator i = Dynamic<pkgCache::DescIterator>::toReMap.begin();
+ i != Dynamic<pkgCache::DescIterator>::toReMap.end(); ++i)
+ (*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);
+ for (std::vector<pkgCache::PkgFileIterator*>::const_iterator i = Dynamic<pkgCache::PkgFileIterator>::toReMap.begin();
+ i != Dynamic<pkgCache::PkgFileIterator>::toReMap.end(); ++i)
+ (*i)->ReMap(oldMap, newMap);
+} /*}}}*/
+// CacheGenerator::WriteStringInMap /*{{{*/
+map_ptrloc pkgCacheGenerator::WriteStringInMap(const char *String,
+ const unsigned long &Len) {
+ void const * const oldMap = Map.Data();
+ map_ptrloc const index = Map.WriteString(String, Len);
+ if (index != 0)
+ ReMap(oldMap, Map.Data());
+ return index;
+}
+ /*}}}*/
+// CacheGenerator::WriteStringInMap /*{{{*/
+map_ptrloc pkgCacheGenerator::WriteStringInMap(const char *String) {
+ void const * const oldMap = Map.Data();
+ map_ptrloc const index = Map.WriteString(String);
+ if (index != 0)
+ ReMap(oldMap, Map.Data());
+ return index;
+}
+ /*}}}*/
+map_ptrloc pkgCacheGenerator::AllocateInMap(const unsigned long &size) {/*{{{*/
+ void const * const oldMap = Map.Data();
+ map_ptrloc const index = Map.Allocate(size);
+ if (index != 0)
+ ReMap(oldMap, Map.Data());
+ return index;
+}
+ /*}}}*/
// CacheGenerator::MergeList - Merge the package list /*{{{*/
// ---------------------------------------------------------------------
/* This provides the generation of the entries in the cache. Each loop
goes through a single package record from the underlying parse engine. */
-bool pkgCacheGenerator::MergeList(ListParser &List)
+bool pkgCacheGenerator::MergeList(ListParser &List,
+ pkgCache::VerIterator *OutVer)
{
List.Owner = this;
+ unsigned int Counter = 0;
while (List.Step() == true)
{
+ string const PackageName = List.Package();
+ if (PackageName.empty() == true)
+ return false;
+
+ string const Arch = List.Architecture();
+
// Get a pointer to the package structure
- string PackageName = List.Package();
pkgCache::PkgIterator Pkg;
- if (NewPackage(Pkg,PackageName) == false)
- return false;
-
+ Dynamic<pkgCache::PkgIterator> DynPkg(Pkg);
+ if (NewPackage(Pkg, PackageName, Arch) == false)
+ return _error->Error(_("Error occurred while processing %s (NewPackage)"),PackageName.c_str());
+ Counter++;
+ if (Counter % 100 == 0 && Progress != 0)
+ Progress->Progress(List.Offset());
+
/* Get a pointer to the version structure. We know the list is sorted
so we use that fact in the search. Insertion of new versions is
done with correct sorting */
string Version = List.Version();
if (Version.empty() == true)
{
- if (List.UsePackage(Pkg,pkgCache::VerIterator(Cache)) == false)
- return false;
+ // we first process the package, then the descriptions
+ // (this has the bonus that we get MMap error when we run out
+ // of MMap space)
+ pkgCache::VerIterator Ver(Cache);
+ Dynamic<pkgCache::VerIterator> DynVer(Ver);
+ if (List.UsePackage(Pkg, Ver) == false)
+ return _error->Error(_("Error occurred while processing %s (UsePackage1)"),
+ PackageName.c_str());
+
+ // Find the right version to write the description
+ MD5SumValue CurMd5 = List.Description_md5();
+ Ver = Pkg.VersionList();
+
+ for (; Ver.end() == false; ++Ver)
+ {
+ pkgCache::DescIterator Desc = Ver.DescriptionList();
+ Dynamic<pkgCache::DescIterator> DynDesc(Desc);
+ map_ptrloc *LastDesc = &Ver->DescriptionList;
+ bool duplicate=false;
+
+ // don't add a new description if we have one for the given
+ // md5 && language
+ for ( ; Desc.end() == false; Desc++)
+ if (MD5SumValue(Desc.md5()) == CurMd5 &&
+ Desc.LanguageCode() == List.DescriptionLanguage())
+ duplicate=true;
+ if(duplicate)
+ continue;
+
+ for (Desc = Ver.DescriptionList();
+ Desc.end() == false;
+ LastDesc = &Desc->NextDesc, Desc++)
+ {
+ if (MD5SumValue(Desc.md5()) == CurMd5)
+ {
+ // Add new description
+ void const * const oldMap = Map.Data();
+ map_ptrloc const descindex = NewDescription(Desc, List.DescriptionLanguage(), CurMd5, *LastDesc);
+ if (oldMap != Map.Data())
+ LastDesc += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap;
+ *LastDesc = descindex;
+ Desc->ParentPkg = Pkg.Index();
+
+ if ((*LastDesc == 0 && _error->PendingError()) || NewFileDesc(Desc,List) == false)
+ return _error->Error(_("Error occurred while processing %s (NewFileDesc1)"),PackageName.c_str());
+ break;
+ }
+ }
+ }
+
continue;
}
pkgCache::VerIterator Ver = Pkg.VersionList();
- unsigned long *Last = &Pkg->VersionList;
+ Dynamic<pkgCache::VerIterator> DynVer(Ver);
+ map_ptrloc *LastVer = &Pkg->VersionList;
+ void const * oldMap = Map.Data();
int Res = 1;
- for (; Ver.end() == false; Last = &Ver->NextVer, Ver++)
+ unsigned long const Hash = List.VersionHash();
+ for (; Ver.end() == false; LastVer = &Ver->NextVer, Ver++)
{
- Res = pkgVersionCompare(Version.begin(),Version.end(),Ver.VerStr(),
- Ver.VerStr() + strlen(Ver.VerStr()));
- if (Res >= 0)
+ Res = Cache.VS->CmpVersion(Version,Ver.VerStr());
+ // Version is higher as current version - insert here
+ if (Res > 0)
+ break;
+ // Versionstrings are equal - is hash also equal?
+ if (Res == 0 && Ver->Hash == Hash)
break;
+ // proceed with the next till we have either the right
+ // or we found another version (which will be lower)
}
-
- /* We already have a version for this item, record that we
- saw it */
- if (Res == 0)
+
+ /* We already have a version for this item, record that we saw it */
+ if (Res == 0 && Ver.end() == false && Ver->Hash == Hash)
{
if (List.UsePackage(Pkg,Ver) == false)
- return false;
-
+ return _error->Error(_("Error occurred while processing %s (UsePackage2)"),
+ PackageName.c_str());
+
if (NewFileVer(Ver,List) == false)
- return false;
+ return _error->Error(_("Error occurred while processing %s (NewFileVer1)"),
+ PackageName.c_str());
+
+ // Read only a single record and return
+ if (OutVer != 0)
+ {
+ *OutVer = Ver;
+ FoundFileDeps |= List.HasFileDeps();
+ return true;
+ }
continue;
- }
+ }
// Add a new version
- *Last = NewVersion(Ver,Version,*Last);
+ map_ptrloc const verindex = NewVersion(Ver,Version,*LastVer);
+ if (verindex == 0 && _error->PendingError())
+ return _error->Error(_("Error occurred while processing %s (NewVersion%d)"),
+ PackageName.c_str(), 1);
+
+ if (oldMap != Map.Data())
+ LastVer += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap;
+ *LastVer = verindex;
Ver->ParentPkg = Pkg.Index();
+ Ver->Hash = Hash;
+
if (List.NewVersion(Ver) == false)
- return false;
+ return _error->Error(_("Error occurred while processing %s (NewVersion%d)"),
+ PackageName.c_str(), 2);
if (List.UsePackage(Pkg,Ver) == false)
- return false;
+ return _error->Error(_("Error occurred while processing %s (UsePackage3)"),
+ PackageName.c_str());
if (NewFileVer(Ver,List) == false)
+ return _error->Error(_("Error occurred while processing %s (NewVersion%d)"),
+ PackageName.c_str(), 3);
+
+ // Read only a single record and return
+ if (OutVer != 0)
+ {
+ *OutVer = Ver;
+ FoundFileDeps |= List.HasFileDeps();
+ return true;
+ }
+
+ /* Record the Description data. Description data always exist in
+ Packages and Translation-* files. */
+ pkgCache::DescIterator Desc = Ver.DescriptionList();
+ Dynamic<pkgCache::DescIterator> DynDesc(Desc);
+ map_ptrloc *LastDesc = &Ver->DescriptionList;
+
+ // Skip to the end of description set
+ for (; Desc.end() == false; LastDesc = &Desc->NextDesc, Desc++);
+
+ // Add new description
+ oldMap = Map.Data();
+ map_ptrloc const descindex = NewDescription(Desc, List.DescriptionLanguage(), List.Description_md5(), *LastDesc);
+ if (oldMap != Map.Data())
+ LastDesc += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap;
+ *LastDesc = descindex;
+ Desc->ParentPkg = Pkg.Index();
+
+ if ((*LastDesc == 0 && _error->PendingError()) || NewFileDesc(Desc,List) == false)
+ return _error->Error(_("Error occurred while processing %s (NewFileDesc2)"),PackageName.c_str());
+ }
+
+ FoundFileDeps |= List.HasFileDeps();
+
+ if (Cache.HeaderP->PackageCount >= (1ULL<<sizeof(Cache.PkgP->ID)*8)-1)
+ return _error->Error(_("Wow, you exceeded the number of package "
+ "names this APT is capable of."));
+ if (Cache.HeaderP->VersionCount >= (1ULL<<(sizeof(Cache.VerP->ID)*8))-1)
+ return _error->Error(_("Wow, you exceeded the number of versions "
+ "this APT is capable of."));
+ if (Cache.HeaderP->DescriptionCount >= (1ULL<<(sizeof(Cache.DescP->ID)*8))-1)
+ return _error->Error(_("Wow, you exceeded the number of descriptions "
+ "this APT is capable of."));
+ if (Cache.HeaderP->DependsCount >= (1ULL<<(sizeof(Cache.DepP->ID)*8))-1ULL)
+ return _error->Error(_("Wow, you exceeded the number of dependencies "
+ "this APT is capable of."));
+ return true;
+}
+ /*}}}*/
+// 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 (FindPkg)"),
+ PackageName.c_str());
+ Counter++;
+ if (Counter % 100 == 0 && Progress != 0)
+ Progress->Progress(List.Offset());
+
+ unsigned long Hash = List.VersionHash();
+ pkgCache::VerIterator Ver = Pkg.VersionList();
+ Dynamic<pkgCache::VerIterator> DynVer(Ver);
+ for (; Ver.end() == false; Ver++)
+ {
+ if (Ver->Hash == Hash && Version.c_str() == Ver.VerStr())
+ {
+ if (List.CollectFileProvides(Cache,Ver) == false)
+ return _error->Error(_("Error occurred while processing %s (CollectFileProvides)"),PackageName.c_str());
+ 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::NewPackage - Add a new package /*{{{*/
+// CacheGenerator::NewGroup - Add a new group /*{{{*/
// ---------------------------------------------------------------------
-/* This creates a new package structure and adds it to the hash table */
-bool pkgCacheGenerator::NewPackage(pkgCache::PkgIterator &Pkg,string Name)
+/* This creates a new group structure and adds it to the hash table */
+bool pkgCacheGenerator::NewGroup(pkgCache::GrpIterator &Grp, const string &Name)
{
- Pkg = Cache.FindPkg(Name);
- if (Pkg.end() == false)
+ Grp = Cache.FindGrp(Name);
+ if (Grp.end() == false)
return true;
-
+
// Get a structure
- unsigned long Package = Map.Allocate(sizeof(pkgCache::Package));
- if (Package == 0)
+ map_ptrloc const Group = AllocateInMap(sizeof(pkgCache::Group));
+ if (unlikely(Group == 0))
return false;
-
- Pkg = pkgCache::PkgIterator(Cache,Cache.PkgP + Package);
-
+
+ Grp = pkgCache::GrpIterator(Cache, Cache.GrpP + Group);
+ map_ptrloc const idxName = WriteStringInMap(Name);
+ if (unlikely(idxName == 0))
+ return false;
+ Grp->Name = idxName;
+
// Insert it into the hash table
- unsigned long Hash = Cache.Hash(Name);
- Pkg->NextPackage = Cache.HeaderP->HashTable[Hash];
- Cache.HeaderP->HashTable[Hash] = Package;
-
- // Set the name and the ID
- Pkg->Name = Map.WriteString(Name);
- if (Pkg->Name == 0)
+ unsigned long const Hash = Cache.Hash(Name);
+ Grp->Next = Cache.HeaderP->GrpHashTable[Hash];
+ Cache.HeaderP->GrpHashTable[Hash] = Group;
+
+ Grp->ID = Cache.HeaderP->GroupCount++;
+ return true;
+}
+ /*}}}*/
+// 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) {
+ pkgCache::GrpIterator Grp;
+ Dynamic<pkgCache::GrpIterator> DynGrp(Grp);
+ if (unlikely(NewGroup(Grp, Name) == false))
+ return false;
+
+ Pkg = Grp.FindPkg(Arch);
+ if (Pkg.end() == false)
+ return true;
+
+ // Get a structure
+ map_ptrloc const Package = AllocateInMap(sizeof(pkgCache::Package));
+ if (unlikely(Package == 0))
return false;
+ Pkg = pkgCache::PkgIterator(Cache,Cache.PkgP + Package);
+
+ // Insert the package into our package list
+ if (Grp->FirstPackage == 0) // the group is new
+ {
+ // Insert it into the hash table
+ unsigned long const Hash = Cache.Hash(Name);
+ Pkg->NextPackage = Cache.HeaderP->PkgHashTable[Hash];
+ Cache.HeaderP->PkgHashTable[Hash] = Package;
+ Grp->FirstPackage = Package;
+ }
+ else // Group the Packages together
+ {
+ // this package is the new last package
+ pkgCache::PkgIterator LastPkg(Cache, Cache.PkgP + Grp->LastPackage);
+ Pkg->NextPackage = LastPkg->NextPackage;
+ LastPkg->NextPackage = Package;
+ }
+ Grp->LastPackage = Package;
+
+ // Set the name, arch and the ID
+ Pkg->Name = Grp->Name;
+ Pkg->Group = Grp.Index();
+ // all is mapped to the native architecture
+ map_ptrloc const idxArch = (Arch == "all") ? Cache.HeaderP->Architecture : WriteUniqString(Arch.c_str());
+ if (unlikely(idxArch == 0))
+ return false;
+ Pkg->Arch = idxArch;
Pkg->ID = Cache.HeaderP->PackageCount++;
-
+
return true;
}
/*}}}*/
bool pkgCacheGenerator::NewFileVer(pkgCache::VerIterator &Ver,
ListParser &List)
{
+ if (CurrentFile == 0)
+ return true;
+
// Get a structure
- unsigned long VerFile = Map.Allocate(sizeof(pkgCache::VerFile));
+ map_ptrloc const VerFile = AllocateInMap(sizeof(pkgCache::VerFile));
if (VerFile == 0)
return 0;
pkgCache::VerFileIterator VF(Cache,Cache.VerFileP + VerFile);
VF->File = CurrentFile - Cache.PkgFileP;
- VF->NextFile = Ver->FileList;
- Ver->FileList = VF.Index();
+
+ // Link it to the end of the list
+ map_ptrloc *Last = &Ver->FileList;
+ for (pkgCache::VerFileIterator V = Ver.FileList(); V.end() == false; V++)
+ Last = &V->NextFile;
+ VF->NextFile = *Last;
+ *Last = VF.Index();
+
VF->Offset = List.Offset();
VF->Size = List.Size();
-
+ if (Cache.HeaderP->MaxVerFileSize < VF->Size)
+ Cache.HeaderP->MaxVerFileSize = VF->Size;
+ Cache.HeaderP->VerFileCount++;
+
return true;
}
/*}}}*/
// ---------------------------------------------------------------------
/* This puts a version structure in the linked list */
unsigned long pkgCacheGenerator::NewVersion(pkgCache::VerIterator &Ver,
- string VerStr,
+ const string &VerStr,
unsigned long Next)
{
// Get a structure
- unsigned long Version = Map.Allocate(sizeof(pkgCache::Version));
+ map_ptrloc const Version = AllocateInMap(sizeof(pkgCache::Version));
if (Version == 0)
return 0;
Ver = pkgCache::VerIterator(Cache,Cache.VerP + Version);
Ver->NextVer = Next;
Ver->ID = Cache.HeaderP->VersionCount++;
- Ver->VerStr = Map.WriteString(VerStr);
- if (Ver->VerStr == 0)
+ map_ptrloc const idxVerStr = WriteStringInMap(VerStr);
+ if (unlikely(idxVerStr == 0))
return 0;
+ Ver->VerStr = idxVerStr;
return Version;
}
/*}}}*/
-// ListParser::NewDepends - Create a dependency element /*{{{*/
+// CacheGenerator::NewFileDesc - Create a new File<->Desc association /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgCacheGenerator::NewFileDesc(pkgCache::DescIterator &Desc,
+ ListParser &List)
+{
+ if (CurrentFile == 0)
+ return true;
+
+ // Get a structure
+ map_ptrloc const DescFile = AllocateInMap(sizeof(pkgCache::DescFile));
+ if (DescFile == 0)
+ return false;
+
+ pkgCache::DescFileIterator DF(Cache,Cache.DescFileP + DescFile);
+ DF->File = CurrentFile - Cache.PkgFileP;
+
+ // Link it to the end of the list
+ map_ptrloc *Last = &Desc->FileList;
+ for (pkgCache::DescFileIterator D = Desc.FileList(); D.end() == false; D++)
+ Last = &D->NextFile;
+
+ DF->NextFile = *Last;
+ *Last = DF.Index();
+
+ DF->Offset = List.Offset();
+ DF->Size = List.Size();
+ if (Cache.HeaderP->MaxDescFileSize < DF->Size)
+ Cache.HeaderP->MaxDescFileSize = DF->Size;
+ Cache.HeaderP->DescFileCount++;
+
+ return true;
+}
+ /*}}}*/
+// CacheGenerator::NewDescription - Create a new Description /*{{{*/
+// ---------------------------------------------------------------------
+/* This puts a description structure in the linked list */
+map_ptrloc pkgCacheGenerator::NewDescription(pkgCache::DescIterator &Desc,
+ const string &Lang,
+ const MD5SumValue &md5sum,
+ map_ptrloc Next)
+{
+ // Get a structure
+ map_ptrloc const Description = AllocateInMap(sizeof(pkgCache::Description));
+ if (Description == 0)
+ return 0;
+
+ // Fill it in
+ Desc = pkgCache::DescIterator(Cache,Cache.DescP + Description);
+ Desc->NextDesc = Next;
+ Desc->ID = Cache.HeaderP->DescriptionCount++;
+ map_ptrloc const idxlanguage_code = WriteStringInMap(Lang);
+ map_ptrloc const idxmd5sum = WriteStringInMap(md5sum.Value());
+ if (unlikely(idxlanguage_code == 0 || idxmd5sum == 0))
+ return 0;
+ Desc->language_code = idxlanguage_code;
+ Desc->md5sum = idxmd5sum;
+
+ return Description;
+}
+ /*}}}*/
+// CacheGenerator::FinishCache - do various finish operations /*{{{*/
+// ---------------------------------------------------------------------
+/* This prepares the Cache for delivery */
+bool pkgCacheGenerator::FinishCache(OpProgress *Progress)
+{
+ // FIXME: add progress reporting for this operation
+ // Do we have different architectures in your groups ?
+ vector<string> archs = APT::Configuration::getArchitectures();
+ if (archs.size() > 1)
+ {
+ // Create Conflicts in between the group
+ pkgCache::GrpIterator G = GetCache().GrpBegin();
+ Dynamic<pkgCache::GrpIterator> DynG(G);
+ for (; G.end() != true; G++)
+ {
+ string const PkgName = G.Name();
+ pkgCache::PkgIterator P = G.PackageList();
+ Dynamic<pkgCache::PkgIterator> DynP(P);
+ for (; P.end() != true; P = G.NextPkg(P))
+ {
+ pkgCache::PkgIterator allPkg;
+ Dynamic<pkgCache::PkgIterator> DynallPkg(allPkg);
+ pkgCache::VerIterator V = P.VersionList();
+ Dynamic<pkgCache::VerIterator> DynV(V);
+ for (; V.end() != true; V++)
+ {
+ char const * const Arch = P.Arch();
+ map_ptrloc *OldDepLast = NULL;
+ /* MultiArch handling introduces a lot of implicit Dependencies:
+ - MultiArch: same → Co-Installable if they have the same version
+ - Architecture: all → Need to be Co-Installable for internal reasons
+ - All others conflict with all other group members */
+ bool const coInstall = ((V->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same);
+ for (vector<string>::const_iterator A = archs.begin(); A != archs.end(); ++A)
+ {
+ if (*A == Arch)
+ continue;
+ /* We allow only one installed arch at the time
+ per group, therefore each group member conflicts
+ with all other group members */
+ pkgCache::PkgIterator D = G.FindPkg(*A);
+ Dynamic<pkgCache::PkgIterator> DynD(D);
+ if (D.end() == true)
+ continue;
+ if (coInstall == true)
+ {
+ // Replaces: ${self}:other ( << ${binary:Version})
+ NewDepends(D, V, V.VerStr(),
+ pkgCache::Dep::Less, pkgCache::Dep::Replaces,
+ OldDepLast);
+ // Breaks: ${self}:other (!= ${binary:Version})
+ NewDepends(D, V, V.VerStr(),
+ pkgCache::Dep::NotEquals, pkgCache::Dep::DpkgBreaks,
+ OldDepLast);
+ } else {
+ // Conflicts: ${self}:other
+ NewDepends(D, V, "",
+ pkgCache::Dep::NoOp, pkgCache::Dep::Conflicts,
+ OldDepLast);
+ }
+ }
+ }
+ }
+ }
+ }
+ return true;
+}
+ /*}}}*/
+// CacheGenerator::NewDepends - Create a dependency element /*{{{*/
// ---------------------------------------------------------------------
/* 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::ListParser::NewDepends(pkgCache::VerIterator Ver,
- string PackageName,
- string Version,
- unsigned int Op,
- unsigned int Type)
+bool pkgCacheGenerator::NewDepends(pkgCache::PkgIterator &Pkg,
+ pkgCache::VerIterator &Ver,
+ string const &Version,
+ unsigned int const &Op,
+ unsigned int const &Type,
+ map_ptrloc *OldDepLast)
{
- pkgCache &Cache = Owner->Cache;
-
+ void const * const oldMap = Map.Data();
// Get a structure
- unsigned long Dependency = Owner->Map.Allocate(sizeof(pkgCache::Dependency));
- if (Dependency == 0)
+ map_ptrloc const Dependency = AllocateInMap(sizeof(pkgCache::Dependency));
+ if (unlikely(Dependency == 0))
return false;
// Fill it in
pkgCache::DepIterator Dep(Cache,Cache.DepP + Dependency);
+ Dynamic<pkgCache::DepIterator> DynDep(Dep);
Dep->ParentVer = Ver.Index();
Dep->Type = Type;
Dep->CompareOp = Op;
Dep->ID = Cache.HeaderP->DependsCount++;
-
- // Locate the target package
- pkgCache::PkgIterator Pkg;
- if (Owner->NewPackage(Pkg,PackageName) == false)
- return false;
-
+
// Probe the reverse dependency list for a version string that matches
if (Version.empty() == false)
{
- for (pkgCache::DepIterator I = Pkg.RevDependsList(); I.end() == false; I++)
+/* for (pkgCache::DepIterator I = Pkg.RevDependsList(); I.end() == false; I++)
if (I->Version != 0 && I.TargetVer() == Version)
- Dep->Version = I->Version;
- if (Dep->Version == 0)
- if ((Dep->Version = WriteString(Version)) == 0)
+ Dep->Version = I->Version;*/
+ if (Dep->Version == 0) {
+ map_ptrloc const index = WriteStringInMap(Version);
+ if (unlikely(index == 0))
return false;
+ Dep->Version = index;
+ }
}
-
+
// Link it to the package
Dep->Package = Pkg.Index();
Dep->NextRevDepends = Pkg->RevDepends;
Pkg->RevDepends = Dep.Index();
-
- // Link it to the version (at the end of the list)
- unsigned long *Last = &Ver->DependsList;
- for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; D++)
- Last = &D->NextDepends;
- Dep->NextDepends = *Last;
- *Last = Dep.Index();
-
+
+ // Do we know where to link the Dependency to?
+ if (OldDepLast == NULL)
+ {
+ OldDepLast = &Ver->DependsList;
+ for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; D++)
+ OldDepLast = &D->NextDepends;
+ } else if (oldMap != Map.Data())
+ OldDepLast += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap;
+
+ Dep->NextDepends = *OldDepLast;
+ *OldDepLast = Dep.Index();
+ OldDepLast = &Dep->NextDepends;
+
return true;
}
/*}}}*/
+// ListParser::NewDepends - Create the environment for a new dependency /*{{{*/
+// ---------------------------------------------------------------------
+/* 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,
+ unsigned int Op,
+ unsigned int Type)
+{
+ pkgCache::GrpIterator Grp;
+ Dynamic<pkgCache::GrpIterator> DynGrp(Grp);
+ if (unlikely(Owner->NewGroup(Grp, PackageName) == false))
+ return false;
+
+ // Locate the target package
+ pkgCache::PkgIterator Pkg = Grp.FindPkg(Arch);
+ Dynamic<pkgCache::PkgIterator> DynPkg(Pkg);
+ if (Pkg.end() == true) {
+ if (unlikely(Owner->NewPackage(Pkg, PackageName, Arch) == false))
+ return false;
+ }
+
+ // Is it a file dependency?
+ if (unlikely(PackageName[0] == '/'))
+ FoundFileDeps = true;
+
+ /* 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);
+}
+ /*}}}*/
// ListParser::NewProvides - Create a Provides element /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator Ver,
- string PackageName,
- string Version)
+bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator &Ver,
+ const string &PkgName,
+ const string &PkgArch,
+ const string &Version)
{
pkgCache &Cache = Owner->Cache;
// We do not add self referencing provides
- if (Ver.ParentPkg().Name() == PackageName)
+ if (Ver.ParentPkg().Name() == PkgName && (PkgArch == Ver.ParentPkg().Arch() ||
+ (PkgArch == "all" && strcmp((Cache.StrP + Cache.HeaderP->Architecture), Ver.ParentPkg().Arch()) == 0)))
return true;
// Get a structure
- unsigned long Provides = Owner->Map.Allocate(sizeof(pkgCache::Provides));
- if (Provides == 0)
+ map_ptrloc const Provides = Owner->AllocateInMap(sizeof(pkgCache::Provides));
+ if (unlikely(Provides == 0))
return false;
+ Cache.HeaderP->ProvidesCount++;
// Fill it in
pkgCache::PrvIterator Prv(Cache,Cache.ProvideP + Provides,Cache.PkgP);
+ Dynamic<pkgCache::PrvIterator> DynPrv(Prv);
Prv->Version = Ver.Index();
Prv->NextPkgProv = Ver->ProvidesList;
Ver->ProvidesList = Prv.Index();
- if (Version.empty() == false && (Prv->Version = WriteString(Version)) == 0)
+ if (Version.empty() == false && unlikely((Prv->ProvideVersion = WriteString(Version)) == 0))
return false;
// Locate the target package
pkgCache::PkgIterator Pkg;
- if (Owner->NewPackage(Pkg,PackageName) == false)
+ Dynamic<pkgCache::PkgIterator> DynPkg(Pkg);
+ if (unlikely(Owner->NewPackage(Pkg,PkgName, PkgArch) == false))
return false;
// Link it to the package
// CacheGenerator::SelectFile - Select the current file being parsed /*{{{*/
// ---------------------------------------------------------------------
/* This is used to select which file is to be associated with all newly
- added versions. */
-bool pkgCacheGenerator::SelectFile(string File,unsigned long Flags)
+ added versions. The caller is responsible for setting the IMS fields. */
+bool pkgCacheGenerator::SelectFile(const string &File,const string &Site,
+ const pkgIndexFile &Index,
+ unsigned long Flags)
{
- struct stat Buf;
- if (stat(File.c_str(),&Buf) == -1)
- return _error->Errno("stat","Couldn't stat ",File.c_str());
-
// Get some space for the structure
- CurrentFile = Cache.PkgFileP + Map.Allocate(sizeof(*CurrentFile));
- if (CurrentFile == Cache.PkgFileP)
+ map_ptrloc const idxFile = AllocateInMap(sizeof(*CurrentFile));
+ if (unlikely(idxFile == 0))
return false;
-
+ CurrentFile = Cache.PkgFileP + idxFile;
+
// Fill it in
- CurrentFile->FileName = Map.WriteString(File);
- CurrentFile->Size = Buf.st_size;
- CurrentFile->mtime = Buf.st_mtime;
+ map_ptrloc const idxFileName = WriteStringInMap(File);
+ map_ptrloc const idxSite = WriteUniqString(Site);
+ if (unlikely(idxFileName == 0 || idxSite == 0))
+ return false;
+ CurrentFile->FileName = idxFileName;
+ CurrentFile->Site = idxSite;
CurrentFile->NextFile = Cache.HeaderP->FileList;
CurrentFile->Flags = Flags;
+ CurrentFile->ID = Cache.HeaderP->PackageFileCount;
+ map_ptrloc const idxIndexType = WriteUniqString(Index.GetType()->Label);
+ if (unlikely(idxIndexType == 0))
+ return false;
+ CurrentFile->IndexType = idxIndexType;
PkgFileName = File;
+ Cache.HeaderP->FileList = CurrentFile - Cache.PkgFileP;
+ Cache.HeaderP->PackageFileCount++;
- if (CurrentFile->FileName == 0)
- return false;
+ if (Progress != 0)
+ Progress->SubProgress(Index.Size());
return true;
}
/*}}}*/
unsigned long pkgCacheGenerator::WriteUniqString(const char *S,
unsigned int Size)
{
+ /* We use a very small transient hash table here, this speeds up generation
+ by a fair amount on slower machines */
+ pkgCache::StringItem *&Bucket = UniqHash[(S[0]*5 + S[1]) % _count(UniqHash)];
+ if (Bucket != 0 &&
+ stringcmp(S,S+Size,Cache.StrP + Bucket->String) == 0)
+ return Bucket->String;
+
// Search for an insertion point
pkgCache::StringItem *I = Cache.StringItemP + Cache.HeaderP->StringList;
int Res = 1;
- unsigned long *Last = &Cache.HeaderP->StringList;
+ map_ptrloc *Last = &Cache.HeaderP->StringList;
for (; I != Cache.StringItemP; Last = &I->NextItem,
I = Cache.StringItemP + I->NextItem)
{
// Match
if (Res == 0)
+ {
+ Bucket = I;
return I->String;
+ }
// Get a structure
- unsigned long Item = Map.Allocate(sizeof(pkgCache::StringItem));
+ void const * const oldMap = Map.Data();
+ map_ptrloc const Item = AllocateInMap(sizeof(pkgCache::StringItem));
if (Item == 0)
return 0;
+ map_ptrloc const idxString = WriteStringInMap(S,Size);
+ if (unlikely(idxString == 0))
+ return 0;
+ if (oldMap != Map.Data()) {
+ Last += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap;
+ I += (pkgCache::StringItem*) Map.Data() - (pkgCache::StringItem*) oldMap;
+ }
+ *Last = Item;
+
// Fill in the structure
pkgCache::StringItem *ItemP = Cache.StringItemP + Item;
ItemP->NextItem = I - Cache.StringItemP;
- *Last = Item;
- ItemP->String = Map.WriteString(S,Size);
- if (ItemP->String == 0)
- return 0;
-
+ ItemP->String = idxString;
+
+ Bucket = ItemP;
return ItemP->String;
}
/*}}}*/
+// CheckValidity - Check that a cache is up-to-date /*{{{*/
+// ---------------------------------------------------------------------
+/* This just verifies that each file in the list of index files exists,
+ has matching attributes with the cache and the cache does not have
+ any extra files. */
+static bool CheckValidity(const string &CacheFile, FileIterator Start,
+ FileIterator End,MMap **OutMap = 0)
+{
+ 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;
+ 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)
+ {
+ if (Debug == true)
+ std::clog << "Errors are pending or Map is empty()" << std::endl;
+ _error->Discard();
+ return false;
+ }
+
+ /* 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);
+ for (; Start != End; Start++)
+ {
+ if (Debug == true)
+ std::clog << "Checking PkgFile " << (*Start)->Describe() << ": ";
+ if ((*Start)->HasPackages() == false)
+ {
+ if (Debug == true)
+ std::clog << "Has NO packages" << std::endl;
+ continue;
+ }
+
+ if ((*Start)->Exists() == false)
+ {
+#if 0 // mvo: we no longer give a message here (Default Sources spec)
+ _error->WarningE("stat",_("Couldn't stat source package list %s"),
+ (*Start)->Describe().c_str());
+#endif
+ if (Debug == true)
+ std::clog << "file doesn't exist" << std::endl;
+ continue;
+ }
+
+ // FindInCache is also expected to do an IMS check.
+ pkgCache::PkgFileIterator File = (*Start)->FindInCache(Cache);
+ if (File.end() == true)
+ {
+ if (Debug == true)
+ std::clog << "FindInCache returned end-Pointer" << std::endl;
+ return false;
+ }
+
+ Visited[File->ID] = true;
+ if (Debug == true)
+ std::clog << "with ID " << File->ID << " is valid" << std::endl;
+ }
+
+ for (unsigned I = 0; I != Cache.HeaderP->PackageFileCount; I++)
+ if (Visited[I] == false)
+ {
+ if (Debug == true)
+ std::clog << "File with ID" << I << " wasn't visited" << std::endl;
+ return false;
+ }
+
+ if (_error->PendingError() == true)
+ {
+ if (Debug == true)
+ {
+ std::clog << "Validity failed because of pending errors:" << std::endl;
+ _error->DumpErrors();
+ }
+ _error->Discard();
+ return false;
+ }
+
+ if (OutMap != 0)
+ *OutMap = Map.UnGuard();
+ return true;
+}
+ /*}}}*/
+// ComputeSize - Compute the total size of a bunch of files /*{{{*/
+// ---------------------------------------------------------------------
+/* Size is kind of an abstract notion that is only used for the progress
+ meter */
+static unsigned long ComputeSize(FileIterator Start,FileIterator End)
+{
+ unsigned long TotalSize = 0;
+ for (; Start != End; Start++)
+ {
+ if ((*Start)->HasPackages() == false)
+ continue;
+ TotalSize += (*Start)->Size();
+ }
+ return TotalSize;
+}
+ /*}}}*/
+// BuildCache - Merge the list of index files into the cache /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+static bool BuildCache(pkgCacheGenerator &Gen,
+ OpProgress *Progress,
+ unsigned long &CurrentSize,unsigned long TotalSize,
+ FileIterator Start, FileIterator End)
+{
+ FileIterator I;
+ for (I = Start; I != End; 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;
+ }
+
+ unsigned long 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 (Gen.HasFileDeps() == true)
+ {
+ if (Progress != NULL)
+ Progress->Done();
+ TotalSize = ComputeSize(Start, End);
+ CurrentSize = 0;
+ for (I = Start; I != End; I++)
+ {
+ unsigned long 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) {
+ unsigned long const MapStart = _config->FindI("APT::Cache-Start", 24*1024*1024);
+ unsigned long const MapGrow = _config->FindI("APT::Cache-Grow", 1*1024*1024);
+ unsigned long const MapLimit = _config->FindI("APT::Cache-Limit", 0);
+ Flags |= MMap::Moveable;
+ if (_config->FindB("APT::Cache-Fallback", false) == true)
+ Flags |= MMap::Fallback;
+ if (CacheF != NULL)
+ return new DynamicMMap(*CacheF, Flags, MapStart, MapGrow, MapLimit);
+ else
+ return new DynamicMMap(Flags, MapStart, MapGrow, MapLimit);
+}
+ /*}}}*/
+// CacheGenerator::MakeStatusCache - Construct the status cache /*{{{*/
+// ---------------------------------------------------------------------
+/* This makes sure that the status cache (the cache that has all
+ 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. */
+__deprecated 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)
+{
+ bool const Debug = _config->FindB("Debug::pkgCacheGen", false);
+
+ vector<pkgIndexFile *> Files;
+ for (vector<metaIndex *>::const_iterator i = List.begin();
+ i != List.end();
+ i++)
+ {
+ vector <pkgIndexFile *> *Indexes = (*i)->GetIndexFiles();
+ for (vector<pkgIndexFile *>::const_iterator j = Indexes->begin();
+ j != Indexes->end();
+ j++)
+ Files.push_back (*j);
+ }
+
+ unsigned long const EndOfSource = Files.size();
+ if (_system->AddStatusFiles(Files) == false)
+ return false;
+
+ // Decide if we can write to the files..
+ string const CacheFile = _config->FindFile("Dir::Cache::pkgcache");
+ string const SrcCacheFile = _config->FindFile("Dir::Cache::srcpkgcache");
+
+ // ensure the cache directory exists
+ if (CacheFile.empty() == false || SrcCacheFile.empty() == false)
+ {
+ string dir = _config->FindDir("Dir::Cache");
+ size_t const len = dir.size();
+ if (len > 5 && dir.find("/apt/", len - 6, 5) == len - 5)
+ dir = dir.substr(0, len - 5);
+ if (CacheFile.empty() == false)
+ CreateDirectory(dir, flNotFile(CacheFile));
+ if (SrcCacheFile.empty() == 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,Files.begin(),Files.end(),OutMap) == 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;
+ }
+ 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)
+ {
+ _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 (Debug == true)
+ {
+ _error->MergeWithStack();
+ std::clog << "Open filebased MMap" << std::endl;
+ }
+ }
+ if (Writeable == false || CacheFile.empty() == true)
+ {
+ // Just build it in memory..
+ Map = CreateDynamicMMap(NULL);
+ if (Debug == true)
+ std::clog << "Open memory Map (not filebased)" << std::endl;
+ }
+
+ // Lets try the source cache.
+ unsigned long CurrentSize = 0;
+ unsigned long TotalSize = 0;
+ if (CheckValidity(SrcCacheFile,Files.begin(),
+ Files.begin()+EndOfSource) == true)
+ {
+ 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);
+ unsigned long const alloc = Map->RawAllocate(SCacheF.Size());
+ if ((alloc == 0 && _error->PendingError())
+ || SCacheF.Read((unsigned char *)Map->Data() + alloc,
+ SCacheF.Size()) == false)
+ return false;
+
+ TotalSize = ComputeSize(Files.begin()+EndOfSource,Files.end());
+
+ // Build the status cache
+ pkgCacheGenerator Gen(Map.Get(),Progress);
+ if (_error->PendingError() == true)
+ return false;
+ if (BuildCache(Gen,Progress,CurrentSize,TotalSize,
+ Files.begin()+EndOfSource,Files.end()) == false)
+ return false;
+
+ // FIXME: move me to a better place
+ Gen.FinishCache(Progress);
+ }
+ else
+ {
+ if (Debug == true)
+ std::clog << "srcpkgcache.bin is NOT valid - rebuild" << std::endl;
+ TotalSize = ComputeSize(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,
+ Files.begin(),Files.begin()+EndOfSource) == false)
+ return false;
+
+ // Write it back
+ if (Writeable == true && SrcCacheFile.empty() == false)
+ {
+ FileFd SCacheF(SrcCacheFile,FileFd::WriteAtomic);
+ if (_error->PendingError() == true)
+ 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,
+ Files.begin()+EndOfSource,Files.end()) == false)
+ return false;
+
+ // FIXME: move me to a better place
+ Gen.FinishCache(Progress);
+ }
+ if (Debug == true)
+ std::clog << "Caches are ready for shipping" << std::endl;
+
+ if (_error->PendingError() == true)
+ return false;
+ if (OutMap != 0)
+ {
+ if (CacheF != 0)
+ {
+ delete Map.UnGuard();
+ *OutMap = new MMap(*CacheF,0);
+ }
+ else
+ {
+ *OutMap = Map.UnGuard();
+ }
+ }
+
+ return true;
+}
+ /*}}}*/
+// CacheGenerator::MakeOnlyStatusCache - Build only a status files cache/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+__deprecated bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap)
+ { return pkgCacheGenerator::MakeOnlyStatusCache(&Progress, OutMap); }
+bool pkgCacheGenerator::MakeOnlyStatusCache(OpProgress *Progress,DynamicMMap **OutMap)
+{
+ vector<pkgIndexFile *> Files;
+ unsigned long EndOfSource = Files.size();
+ if (_system->AddStatusFiles(Files) == false)
+ return false;
+
+ SPtr<DynamicMMap> Map = CreateDynamicMMap(NULL);
+ unsigned long CurrentSize = 0;
+ unsigned long TotalSize = 0;
+
+ TotalSize = ComputeSize(Files.begin()+EndOfSource,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)
+ return false;
+ if (BuildCache(Gen,Progress,CurrentSize,TotalSize,
+ Files.begin()+EndOfSource,Files.end()) == false)
+ return false;
+
+ // FIXME: move me to a better place
+ Gen.FinishCache(Progress);
+
+ if (_error->PendingError() == true)
+ return false;
+ *OutMap = Map.UnGuard();
+
+ return true;
+}
+ /*}}}*/
projects / apt.git / blobdiff