diff options
Diffstat (limited to 'apt-pkg/pkgcachegen.cc')
| -rw-r--r-- | apt-pkg/pkgcachegen.cc | 688 |
1 files changed, 249 insertions, 439 deletions
diff --git a/apt-pkg/pkgcachegen.cc b/apt-pkg/pkgcachegen.cc index c3cddd615..2fcccaf4a 100644 --- a/apt-pkg/pkgcachegen.cc +++ b/apt-pkg/pkgcachegen.cc @@ -1,6 +1,6 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: pkgcachegen.cc,v 1.45 2000/01/14 06:26:36 jgg Exp $ +// $Id: pkgcachegen.cc,v 1.46 2001/02/20 07:03:17 jgg Exp $ /* ###################################################################### Package Cache Generator - Generator for the cache structure. @@ -14,15 +14,20 @@ #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 <apt-pkg/progress.h> #include <apt-pkg/sourcelist.h> #include <apt-pkg/configuration.h> -#include <apt-pkg/deblistparser.h> #include <apt-pkg/strutl.h> +#include <apt-pkg/sptr.h> +#include <apt-pkg/pkgsystem.h> +#include <apti18n.h> + #include <sys/stat.h> #include <unistd.h> #include <errno.h> @@ -33,23 +38,42 @@ // CacheGenerator::pkgCacheGenerator - Constructor /*{{{*/ // --------------------------------------------------------------------- /* We set the diry flag and make sure that is written to the disk */ -pkgCacheGenerator::pkgCacheGenerator(DynamicMMap &Map,OpProgress &Prog) : - Map(Map), Cache(Map), Progress(&Prog) +pkgCacheGenerator::pkgCacheGenerator(DynamicMMap *pMap,OpProgress *Prog) : + Map(*pMap), Cache(pMap,false), Progress(Prog) { CurrentFile = 0; + memset(UniqHash,0,sizeof(UniqHash)); if (_error->PendingError() == true) return; - + if (Map.Size() == 0) { + // Setup the map interface.. + Cache.HeaderP = (pkgCache::Header *)Map.Data(); Map.RawAllocate(sizeof(pkgCache::Header)); + Map.UsePools(*Cache.HeaderP->Pools,sizeof(Cache.HeaderP->Pools)/sizeof(Cache.HeaderP->Pools[0])); + + // Starting header *Cache.HeaderP = pkgCache::Header(); + Cache.HeaderP->VerSysName = Map.WriteString(_system->VS->Label); + Cache.HeaderP->Architecture = Map.WriteString(_config->Find("APT::Architecture")); + 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])); - memset(UniqHash,0,sizeof(UniqHash)); } /*}}}*/ // CacheGenerator::~pkgCacheGenerator - Destructor /*{{{*/ @@ -86,7 +110,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, pkgCache::PkgIterator Pkg; if (NewPackage(Pkg,PackageName) == false) - return _error->Error("Error occured while processing %s (NewPackage)",PackageName.c_str()); + return _error->Error(_("Error occured while processing %s (NewPackage)"),PackageName.c_str()); Counter++; if (Counter % 100 == 0 && Progress != 0) Progress->Progress(List.Offset()); @@ -98,7 +122,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, if (Version.empty() == true) { if (List.UsePackage(Pkg,pkgCache::VerIterator(Cache)) == false) - return _error->Error("Error occured while processing %s (UsePackage1)",PackageName.c_str()); + return _error->Error(_("Error occured while processing %s (UsePackage1)"),PackageName.c_str()); continue; } @@ -107,7 +131,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, int Res = 1; for (; Ver.end() == false; Last = &Ver->NextVer, Ver++) { - Res = pkgVersionCompare(Version.begin(),Version.end(),Ver.VerStr(), + Res = Cache.VS->DoCmpVersion(Version.begin(),Version.end(),Ver.VerStr(), Ver.VerStr() + strlen(Ver.VerStr())); if (Res >= 0) break; @@ -119,10 +143,10 @@ bool pkgCacheGenerator::MergeList(ListParser &List, if (Res == 0 && Ver->Hash == Hash) { if (List.UsePackage(Pkg,Ver) == false) - return _error->Error("Error occured while processing %s (UsePackage2)",PackageName.c_str()); + return _error->Error(_("Error occured while processing %s (UsePackage2)"),PackageName.c_str()); if (NewFileVer(Ver,List) == false) - return _error->Error("Error occured while processing %s (NewFileVer1)",PackageName.c_str()); + return _error->Error(_("Error occured while processing %s (NewFileVer1)"),PackageName.c_str()); // Read only a single record and return if (OutVer != 0) @@ -139,7 +163,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, { for (; Ver.end() == false; Last = &Ver->NextVer, Ver++) { - Res = pkgVersionCompare(Version.begin(),Version.end(),Ver.VerStr(), + Res = Cache.VS->DoCmpVersion(Version.begin(),Version.end(),Ver.VerStr(), Ver.VerStr() + strlen(Ver.VerStr())); if (Res != 0) break; @@ -151,13 +175,13 @@ bool pkgCacheGenerator::MergeList(ListParser &List, Ver->ParentPkg = Pkg.Index(); Ver->Hash = Hash; if (List.NewVersion(Ver) == false) - return _error->Error("Error occured while processing %s (NewVersion1)",PackageName.c_str()); + return _error->Error(_("Error occured while processing %s (NewVersion1)"),PackageName.c_str()); if (List.UsePackage(Pkg,Ver) == false) - return _error->Error("Error occured while processing %s (UsePackage3)",PackageName.c_str()); + return _error->Error(_("Error occured while processing %s (UsePackage3)"),PackageName.c_str()); if (NewFileVer(Ver,List) == false) - return _error->Error("Error occured while processing %s (NewVersion2)",PackageName.c_str()); + return _error->Error(_("Error occured while processing %s (NewVersion2)"),PackageName.c_str()); // Read only a single record and return if (OutVer != 0) @@ -288,7 +312,7 @@ bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver, // 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++, Hit++) +/* 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) @@ -342,7 +366,7 @@ bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator Ver, 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 && (Prv->ProvideVersion = WriteString(Version)) == 0) return false; // Locate the target package @@ -361,13 +385,11 @@ bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator Ver, // 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(string File,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) @@ -375,20 +397,20 @@ bool pkgCacheGenerator::SelectFile(string File,unsigned long Flags) // Fill it in CurrentFile->FileName = Map.WriteString(File); - CurrentFile->Size = Buf.st_size; - CurrentFile->mtime = Buf.st_mtime; + CurrentFile->Site = WriteUniqString(Site); CurrentFile->NextFile = Cache.HeaderP->FileList; CurrentFile->Flags = Flags; CurrentFile->ID = Cache.HeaderP->PackageFileCount; + CurrentFile->IndexType = WriteUniqString(Index.GetType()->Label); PkgFileName = File; Cache.HeaderP->FileList = CurrentFile - Cache.PkgFileP; Cache.HeaderP->PackageFileCount++; - + if (CurrentFile->FileName == 0) return false; if (Progress != 0) - Progress->SubProgress(Buf.st_size); + Progress->SubProgress(Index.Size()); return true; } /*}}}*/ @@ -443,491 +465,279 @@ unsigned long pkgCacheGenerator::WriteUniqString(const char *S, } /*}}}*/ -// SrcCacheCheck - Check if the source package cache is uptodate /*{{{*/ +// CheckValidity - Check that a cache is up-to-date /*{{{*/ // --------------------------------------------------------------------- -/* The source cache is checked against the source list and the files - on disk, any difference results in a false. */ -bool pkgSrcCacheCheck(pkgSourceList &List) +/* 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(string CacheFile,pkgIndexFile **Start, + pkgIndexFile **End,MMap **OutMap = 0) { - if (_error->PendingError() == true) - return false; - - string CacheFile = _config->FindFile("Dir::Cache::srcpkgcache"); - string ListDir = _config->FindDir("Dir::State::lists"); - - // Count the number of missing files - int Missing = 0; - for (pkgSourceList::const_iterator I = List.begin(); I != List.end(); I++) - { - // Only cache deb source types. - if (I->Type != pkgSourceList::Item::Deb) - { - Missing++; - continue; - } - - string File = ListDir + URItoFileName(I->PackagesURI()); - struct stat Buf; - if (stat(File.c_str(),&Buf) != 0) - { - // Old format file name.. rename it - if (File[0] == '_' && stat(File.c_str()+1,&Buf) == 0) - { - if (rename(File.c_str()+1,File.c_str()) != 0) - return _error->Errno("rename","Failed to rename %s to %s", - File.c_str()+1,File.c_str()); - continue; - } - - _error->WarningE("stat","Couldn't stat source package list '%s' (%s)", - I->PackagesInfo().c_str(),File.c_str()); - Missing++; - } - } - - // Open the source package cache - if (FileExists(CacheFile) == false) + // No file, certainly invalid + if (CacheFile.empty() == true || FileExists(CacheFile) == false) return false; + // Map it FileFd CacheF(CacheFile,FileFd::ReadOnly); - if (_error->PendingError() == true) - { - _error->Discard(); - return false; - } - - MMap Map(CacheF,MMap::Public | MMap::ReadOnly); - if (_error->PendingError() == true || Map.Size() == 0) - { - _error->Discard(); - return false; - } - + SPtr<MMap> Map = new MMap(CacheF,MMap::Public | MMap::ReadOnly); pkgCache Cache(Map); - if (_error->PendingError() == true) + if (_error->PendingError() == true || Map->Size() == 0) { _error->Discard(); return false; } - - // They are certianly out of sync - if (Cache.Head().PackageFileCount != List.size() - Missing) - return false; - for (pkgCache::PkgFileIterator F(Cache); F.end() == false; F++) - { - // Search for a match in the source list - bool Bad = true; - for (pkgSourceList::const_iterator I = List.begin(); - I != List.end(); I++) + /* 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 ((*Start)->HasPackages() == false) + continue; + + if ((*Start)->Exists() == false) { - // Only cache deb source types. - if (I->Type != pkgSourceList::Item::Deb) - continue; - - string File = ListDir + URItoFileName(I->PackagesURI()); - if (F.FileName() == File) - { - Bad = false; - break; - } + _error->WarningE("stat",_("Couldn't stat source package list %s"), + (*Start)->Describe().c_str()); + continue; } - - // Check if the file matches what was cached - Bad |= !F.IsOk(); - if (Bad == true) + + // FindInCache is also expected to do an IMS check. + pkgCache::PkgFileIterator File = (*Start)->FindInCache(Cache); + if (File.end() == true) return false; + + Visited[File->ID] = true; } - return true; -} - /*}}}*/ -// PkgCacheCheck - Check if the package cache is uptodate /*{{{*/ -// --------------------------------------------------------------------- -/* This does a simple check of all files used to compose the cache */ -bool pkgPkgCacheCheck(string CacheFile) -{ - if (_error->PendingError() == true) - return false; - - // Open the source package cache - if (FileExists(CacheFile) == false) - return false; - - FileFd CacheF(CacheFile,FileFd::ReadOnly); - if (_error->PendingError() == true) - { - _error->Discard(); - return false; - } - - MMap Map(CacheF,MMap::Public | MMap::ReadOnly); - if (_error->PendingError() == true || Map.Size() == 0) - { - _error->Discard(); - return false; - } + for (unsigned I = 0; I != Cache.HeaderP->PackageFileCount; I++) + if (Visited[I] == false) + return false; - pkgCache Cache(Map); if (_error->PendingError() == true) { _error->Discard(); return false; } - - // Status files that must be in the cache - string Status[3]; - Status[0] = _config->FindFile("Dir::State::xstatus"); - Status[1]= _config->FindFile("Dir::State::userstatus"); - Status[2] = _config->FindFile("Dir::State::status"); - - // Cheack each file - for (pkgCache::PkgFileIterator F(Cache); F.end() == false; F++) - { - if (F.IsOk() == false) - return false; - - // See if this is one of the status files - for (int I = 0; I != 3; I++) - if (F.FileName() == Status[I]) - Status[I] = string(); - } - - // Make sure all the status files are loaded. - for (int I = 0; I != 3; I++) - { - if (Status[I].empty() == false && FileExists(Status[I]) == true) - return false; - } - - return true; -} - /*}}}*/ -// AddStatusSize - Add the size of the status files /*{{{*/ -// --------------------------------------------------------------------- -/* This adds the size of all the status files to the size counter */ -bool pkgAddStatusSize(unsigned long &TotalSize) -{ - // Grab the file names - string xstatus = _config->FindFile("Dir::State::xstatus"); - string userstatus = _config->FindFile("Dir::State::userstatus"); - string status = _config->FindFile("Dir::State::status"); - - // Grab the sizes - struct stat Buf; - if (stat(xstatus.c_str(),&Buf) == 0) - TotalSize += Buf.st_size; - if (stat(userstatus.c_str(),&Buf) == 0) - TotalSize += Buf.st_size; - if (stat(status.c_str(),&Buf) != 0) - return _error->Errno("stat","Couldn't stat the status file %s",status.c_str()); - TotalSize += Buf.st_size; + if (OutMap != 0) + *OutMap = Map.UnGuard(); return true; } /*}}}*/ -// MergeStatus - Add the status files to the cache /*{{{*/ +// ComputeSize - Compute the total size of a bunch of files /*{{{*/ // --------------------------------------------------------------------- -/* This adds the status files to the map */ -bool pkgMergeStatus(OpProgress &Progress,pkgCacheGenerator &Gen, - unsigned long &CurrentSize,unsigned long TotalSize) +/* Size is kind of an abstract notion that is only used for the progress + meter */ +static unsigned long ComputeSize(pkgIndexFile **Start,pkgIndexFile **End) { - // Grab the file names - string Status[3]; - Status[0] = _config->FindFile("Dir::State::xstatus"); - Status[1]= _config->FindFile("Dir::State::userstatus"); - Status[2] = _config->FindFile("Dir::State::status"); - - for (int I = 0; I != 3; I++) + unsigned long TotalSize = 0; + for (; Start != End; Start++) { - // Check if the file exists and it is not the primary status file. - string File = Status[I]; - if (I != 2 && FileExists(File) == false) - continue; - - FileFd Pkg(File,FileFd::ReadOnly); - debListParser Parser(Pkg); - Progress.OverallProgress(CurrentSize,TotalSize,Pkg.Size(),"Reading Package Lists"); - if (_error->PendingError() == true) - return _error->Error("Problem opening %s",File.c_str()); - CurrentSize += Pkg.Size(); - - Progress.SubProgress(0,"Local Package State - " + flNotDir(File)); - if (Gen.SelectFile(File,pkgCache::Flag::NotSource) == false) - return _error->Error("Problem with SelectFile %s",File.c_str()); - - if (Gen.MergeList(Parser) == false) - return _error->Error("Problem with MergeList %s",File.c_str()); - Progress.Progress(Pkg.Size()); + if ((*Start)->HasPackages() == false) + continue; + TotalSize += (*Start)->Size(); } - - return true; + return TotalSize; } /*}}}*/ -// GenerateSrcCache - Write the source package lists to the map /*{{{*/ +// BuildCache - Merge the list of index files into the cache /*{{{*/ // --------------------------------------------------------------------- -/* This puts the source package cache into the given generator. */ -bool pkgGenerateSrcCache(pkgSourceList &List,OpProgress &Progress, - pkgCacheGenerator &Gen, - unsigned long &CurrentSize,unsigned long &TotalSize) +/* */ +static bool BuildCache(pkgCacheGenerator &Gen, + OpProgress &Progress, + unsigned long &CurrentSize,unsigned long TotalSize, + pkgIndexFile **Start,pkgIndexFile **End) { - string ListDir = _config->FindDir("Dir::State::lists"); - - // Prepare the progress indicator - TotalSize = 0; - struct stat Buf; - for (pkgSourceList::const_iterator I = List.begin(); I != List.end(); I++) - { - string File = ListDir + URItoFileName(I->PackagesURI()); - if (stat(File.c_str(),&Buf) != 0) - continue; - TotalSize += Buf.st_size; - } - - if (pkgAddStatusSize(TotalSize) == false) - return false; - - // Generate the pkg source cache - CurrentSize = 0; - for (pkgSourceList::const_iterator I = List.begin(); I != List.end(); I++) + for (; Start != End; Start++) { - // Only cache deb source types. - if (I->Type != pkgSourceList::Item::Deb) + if ((*Start)->HasPackages() == false) continue; - string File = ListDir + URItoFileName(I->PackagesURI()); - - if (FileExists(File) == false) + if ((*Start)->Exists() == false) continue; + + unsigned long Size = (*Start)->Size(); + Progress.OverallProgress(CurrentSize,TotalSize,Size,_("Reading Package Lists")); + CurrentSize += Size; - FileFd Pkg(File,FileFd::ReadOnly); - debListParser Parser(Pkg); - Progress.OverallProgress(CurrentSize,TotalSize,Pkg.Size(),"Reading Package Lists"); - if (_error->PendingError() == true) - return _error->Error("Problem opening %s",File.c_str()); - CurrentSize += Pkg.Size(); - - Progress.SubProgress(0,I->PackagesInfo()); - if (Gen.SelectFile(File) == false) - return _error->Error("Problem with SelectFile %s",File.c_str()); - - if (Gen.MergeList(Parser) == false) - return _error->Error("Problem with MergeList %s",File.c_str()); - - // Check the release file - string RFile = ListDir + URItoFileName(I->ReleaseURI()); - if (FileExists(RFile) == true) - { - FileFd Rel(RFile,FileFd::ReadOnly); - if (_error->PendingError() == true) - return false; - Parser.LoadReleaseInfo(Gen.GetCurFile(),Rel); - } - } + if ((*Start)->Merge(Gen,Progress) == false) + return false; + } return true; } /*}}}*/ -// MakeStatusCache - Generates a cache that includes the status files /*{{{*/ +// MakeStatusCache - Construct the status cache /*{{{*/ // --------------------------------------------------------------------- -/* This copies the package source cache and then merges the status and - xstatus files into it. */ -bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress) +/* 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. */ +bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, + MMap **OutMap,bool AllowMem) { unsigned long MapSize = _config->FindI("APT::Cache-Limit",4*1024*1024); - Progress.OverallProgress(0,1,1,"Reading Package Lists"); + vector<pkgIndexFile *> Files(List.begin(),List.end()); + unsigned long EndOfSource = Files.size(); + if (_system->AddStatusFiles(Files) == false) + return false; + // Decide if we can write to the files.. string CacheFile = _config->FindFile("Dir::Cache::pkgcache"); - bool SrcOk = pkgSrcCacheCheck(List); - bool PkgOk = SrcOk && pkgPkgCacheCheck(CacheFile); - - // Rebuild the source and package caches - if (SrcOk == false) - { - string SCacheFile = _config->FindFile("Dir::Cache::srcpkgcache"); - FileFd SCacheF(SCacheFile,FileFd::WriteEmpty); - - /* Open the pkgcache, we want a new inode here so we do no corrupt - existing mmaps */ - unlink(CacheFile.c_str()); - FileFd CacheF(CacheFile,FileFd::WriteEmpty); - DynamicMMap Map(CacheF,MMap::Public,MapSize); + string SrcCacheFile = _config->FindFile("Dir::Cache::srcpkgcache"); + + // 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 (Writeable == false && AllowMem == false && CacheFile.empty() == false) + return _error->Error(_("Unable to write to %s"),flNotFile(CacheFile).c_str()); + + Progress.OverallProgress(0,1,1,_("Reading Package Lists")); + + // Cache is OK, Fin. + if (CheckValidity(CacheFile,Files.begin(),Files.end(),OutMap) == true) + { + Progress.OverallProgress(1,1,1,_("Reading Package Lists")); + return true; + } + + /* 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) + { + unlink(CacheFile.c_str()); + CacheF = new FileFd(CacheFile,FileFd::WriteEmpty); + Map = new DynamicMMap(*CacheF,MMap::Public,MapSize); if (_error->PendingError() == true) return false; - - pkgCacheGenerator Gen(Map,Progress); - unsigned long CurrentSize = 0; - unsigned long TotalSize = 0; - if (pkgGenerateSrcCache(List,Progress,Gen,CurrentSize,TotalSize) == false) - return false; - - // Write the src cache - Gen.GetCache().HeaderP->Dirty = false; - if (SCacheF.Write(Map.Data(),Map.Size()) == false) - return _error->Error("IO Error saving source cache"); - Gen.GetCache().HeaderP->Dirty = true; - - // Merge in the source caches - return pkgMergeStatus(Progress,Gen,CurrentSize,TotalSize); } - - if (PkgOk == true) + else { - Progress.OverallProgress(1,1,1,"Reading Package Lists"); - return true; + // Just build it in memory.. + Map = new DynamicMMap(MMap::Public,MapSize); } - // We use the source cache to generate the package cache - string SCacheFile = _config->FindFile("Dir::Cache::srcpkgcache"); - FileFd SCacheF(SCacheFile,FileFd::ReadOnly); - - /* Open the pkgcache, we want a new inode here so we do no corrupt - existing mmaps */ - unlink(CacheFile.c_str()); - FileFd CacheF(CacheFile,FileFd::WriteEmpty); - DynamicMMap Map(CacheF,MMap::Public,MapSize); - if (_error->PendingError() == true) - return false; - - // Preload the map with the source cache - if (SCacheF.Read((unsigned char *)Map.Data() + Map.RawAllocate(SCacheF.Size()), - SCacheF.Size()) == false) - return false; - - pkgCacheGenerator Gen(Map,Progress); - - // Compute the progress - unsigned long TotalSize = 0; - if (pkgAddStatusSize(TotalSize) == false) - return false; - + // Lets try the source cache. unsigned long CurrentSize = 0; - return pkgMergeStatus(Progress,Gen,CurrentSize,TotalSize); -} - /*}}}*/ -// MakeStatusCacheMem - Returns a map for the status cache /*{{{*/ -// --------------------------------------------------------------------- -/* This creates a map object for the status cache. If the process has write - access to the caches then it is the same as MakeStatusCache, otherwise it - creates a memory block and puts the cache in there. */ -MMap *pkgMakeStatusCacheMem(pkgSourceList &List,OpProgress &Progress) -{ - unsigned long MapSize = _config->FindI("APT::Cache-Limit",4*1024*1024); - - /* If the cache file is writeable this is just a wrapper for - MakeStatusCache */ - string CacheFile = _config->FindFile("Dir::Cache::pkgcache"); - bool Writeable = (access(CacheFile.c_str(),W_OK) == 0) || - (errno == ENOENT); - - if (Writeable == true) + unsigned long TotalSize = 0; + if (CheckValidity(SrcCacheFile,Files.begin(), + Files.begin()+EndOfSource) == true) { - if (pkgMakeStatusCache(List,Progress) == false) - return 0; - - // Open the cache file - FileFd File(_config->FindFile("Dir::Cache::pkgcache"),FileFd::ReadOnly); - if (_error->PendingError() == true) - return 0; + // Preload the map with the source cache + FileFd SCacheF(SrcCacheFile,FileFd::ReadOnly); + if (SCacheF.Read((unsigned char *)Map->Data() + Map->RawAllocate(SCacheF.Size()), + SCacheF.Size()) == false) + return false; + + TotalSize = ComputeSize(Files.begin()+EndOfSource,Files.end()); - MMap *Map = new MMap(File,MMap::Public | MMap::ReadOnly); + // Build the status cache + pkgCacheGenerator Gen(Map.Get(),&Progress); if (_error->PendingError() == true) - { - delete Map; - return 0; - } - return Map; - } - - // Mostly from MakeStatusCache.. - Progress.OverallProgress(0,1,1,"Reading Package Lists"); - - bool SrcOk = pkgSrcCacheCheck(List); - bool PkgOk = SrcOk && pkgPkgCacheCheck(CacheFile); - - // Rebuild the source and package caches - if (SrcOk == false) + return false; + if (BuildCache(Gen,Progress,CurrentSize,TotalSize, + Files.begin()+EndOfSource,Files.end()) == false) + return false; + } + else { - DynamicMMap *Map = new DynamicMMap(MMap::Public,MapSize); - if (_error->PendingError() == true) - { - delete Map; - return 0; - } + TotalSize = ComputeSize(Files.begin(),Files.end()); - pkgCacheGenerator Gen(*Map,Progress); - unsigned long CurrentSize = 0; - unsigned long TotalSize = 0; - if (pkgGenerateSrcCache(List,Progress,Gen,CurrentSize,TotalSize) == false) - { - delete Map; - return 0; - } + // 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; - // Merge in the source caches - if (pkgMergeStatus(Progress,Gen,CurrentSize,TotalSize) == false) + // Write it back + if (Writeable == true && SrcCacheFile.empty() == false) { - delete Map; - return 0; + FileFd SCacheF(SrcCacheFile,FileFd::WriteEmpty); + if (_error->PendingError() == true) + return false; + // 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")); + SCacheF.Sync(); + Gen.GetCache().HeaderP->Dirty = true; } - return Map; + // Build the status cache + if (BuildCache(Gen,Progress,CurrentSize,TotalSize, + Files.begin()+EndOfSource,Files.end()) == false) + return false; } - if (PkgOk == true) + if (_error->PendingError() == true) + return false; + if (OutMap != 0) { - Progress.OverallProgress(1,1,1,"Reading Package Lists"); - - // Open the cache file - FileFd File(_config->FindFile("Dir::Cache::pkgcache"),FileFd::ReadOnly); - if (_error->PendingError() == true) - return 0; - - MMap *Map = new MMap(File,MMap::Public | MMap::ReadOnly); - if (_error->PendingError() == true) + if (CacheF != 0) { - delete Map; - return 0; + delete Map.UnGuard(); + *OutMap = new MMap(*CacheF,MMap::Public | MMap::ReadOnly); } - return Map; + else + { + *OutMap = Map.UnGuard(); + } } - // We use the source cache to generate the package cache - string SCacheFile = _config->FindFile("Dir::Cache::srcpkgcache"); - FileFd SCacheF(SCacheFile,FileFd::ReadOnly); - DynamicMMap *Map = new DynamicMMap(MMap::Public,MapSize); + return true; +} + /*}}}*/ +// MakeOnlyStatusCache - Build a cache with just the status files /*{{{*/ +// --------------------------------------------------------------------- +/* */ +bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap) +{ + unsigned long MapSize = _config->FindI("APT::Cache-Limit",4*1024*1024); + vector<pkgIndexFile *> Files; + unsigned long EndOfSource = Files.size(); + if (_system->AddStatusFiles(Files) == false) + return false; + + SPtr<DynamicMMap> Map; + Map = new DynamicMMap(MMap::Public,MapSize); + unsigned long CurrentSize = 0; + unsigned long TotalSize = 0; + + TotalSize = ComputeSize(Files.begin()+EndOfSource,Files.end()); + + // Build the status cache + Progress.OverallProgress(0,1,1,_("Reading Package Lists")); + pkgCacheGenerator Gen(Map.Get(),&Progress); if (_error->PendingError() == true) - { - delete Map; - return 0; - } + return false; + if (BuildCache(Gen,Progress,CurrentSize,TotalSize, + Files.begin()+EndOfSource,Files.end()) == false) + return false; - // Preload the map with the source cache - if (SCacheF.Read((unsigned char *)Map->Data() + Map->RawAllocate(SCacheF.Size()), - SCacheF.Size()) == false) - { - delete Map; - return 0; - } - - pkgCacheGenerator Gen(*Map,Progress); + if (_error->PendingError() == true) + return false; + *OutMap = Map.UnGuard(); - // Compute the progress - unsigned long TotalSize = 0; - if (pkgAddStatusSize(TotalSize) == false) - { - delete Map; - return 0; - } - - unsigned long CurrentSize = 0; - if (pkgMergeStatus(Progress,Gen,CurrentSize,TotalSize) == false) - { - delete Map; - return 0; - } - - return Map; + return true; } /*}}}*/ |