From 92fcbfc16396d9a2fbde0edb0902d4ebe7ff0090 Mon Sep 17 00:00:00 2001 From: David Kalnischkies Date: Tue, 30 Jun 2009 21:37:30 +0200 Subject: add the various foldmarkers in apt-pkg & cmdline (no code change) --- apt-pkg/pkgcachegen.cc | 1 - 1 file changed, 1 deletion(-) (limited to 'apt-pkg/pkgcachegen.cc') diff --git a/apt-pkg/pkgcachegen.cc b/apt-pkg/pkgcachegen.cc index 397c19829..7833d6476 100644 --- a/apt-pkg/pkgcachegen.cc +++ b/apt-pkg/pkgcachegen.cc @@ -652,7 +652,6 @@ unsigned long pkgCacheGenerator::WriteUniqString(const char *S, 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, -- cgit v1.2.3 From c5f44afc2446d738e30ea4c6021d4b60915546b1 Mon Sep 17 00:00:00 2001 From: David Kalnischkies Date: Tue, 21 Jul 2009 16:54:28 +0200 Subject: eliminate (hopefully all) segfaults in pkgcachegen.cc and mmap.cc which can arise if cache doesn't fit into the mmap (Closes: #535218) This removes also the previously introduced SegfaultSignalHandler: The handler works, but is ugly by design... --- apt-pkg/pkgcachegen.cc | 45 +++++++++++++++++++++++++-------------------- 1 file changed, 25 insertions(+), 20 deletions(-) (limited to 'apt-pkg/pkgcachegen.cc') diff --git a/apt-pkg/pkgcachegen.cc b/apt-pkg/pkgcachegen.cc index 7833d6476..e2934d1fa 100644 --- a/apt-pkg/pkgcachegen.cc +++ b/apt-pkg/pkgcachegen.cc @@ -53,14 +53,16 @@ pkgCacheGenerator::pkgCacheGenerator(DynamicMMap *pMap,OpProgress *Prog) : { // Setup the map interface.. Cache.HeaderP = (pkgCache::Header *)Map.Data(); - Map.RawAllocate(sizeof(pkgCache::Header)); + 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(); Cache.HeaderP->VerSysName = Map.WriteString(_system->VS->Label); Cache.HeaderP->Architecture = Map.WriteString(_config->Find("APT::Architecture")); - Cache.ReMap(); + Cache.ReMap(); } else { @@ -135,7 +137,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, pkgCache::VerIterator Ver = Pkg.VersionList(); map_ptrloc *LastVer = &Pkg->VersionList; - for (; Ver.end() == false; LastVer = &Ver->NextVer, Ver++) + for (; Ver != 0 && Ver.end() == false; LastVer = &Ver->NextVer, Ver++) { pkgCache::DescIterator Desc = Ver.DescriptionList(); map_ptrloc *LastDesc = &Ver->DescriptionList; @@ -143,7 +145,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, // don't add a new description if we have one for the given // md5 && language - for ( ; Desc.end() == false; Desc++) + for ( ; Desc != 0 && Desc.end() == false; Desc++) if (MD5SumValue(Desc.md5()) == CurMd5 && Desc.LanguageCode() == List.DescriptionLanguage()) duplicate=true; @@ -151,7 +153,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, continue; for (Desc = Ver.DescriptionList(); - Desc.end() == false; + Desc != 0 && Desc.end() == false; LastDesc = &Desc->NextDesc, Desc++) { if (MD5SumValue(Desc.md5()) == CurMd5) @@ -160,7 +162,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, *LastDesc = NewDescription(Desc, List.DescriptionLanguage(), CurMd5, *LastDesc); Desc->ParentPkg = Pkg.Index(); - if (NewFileDesc(Desc,List) == false) + if ((*LastDesc == 0 && _error->PendingError()) || NewFileDesc(Desc,List) == false) return _error->Error(_("Error occurred while processing %s (NewFileDesc1)"),PackageName.c_str()); break; } @@ -173,7 +175,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, pkgCache::VerIterator Ver = Pkg.VersionList(); map_ptrloc *LastVer = &Pkg->VersionList; int Res = 1; - for (; Ver.end() == false; LastVer = &Ver->NextVer, Ver++) + for (; Ver != 0 && Ver.end() == false; LastVer = &Ver->NextVer, Ver++) { Res = Cache.VS->CmpVersion(Version,Ver.VerStr()); if (Res >= 0) @@ -207,7 +209,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, // Skip to the end of the same version set. if (Res == 0) { - for (; Ver.end() == false; LastVer = &Ver->NextVer, Ver++) + for (; Ver != 0 && Ver.end() == false; LastVer = &Ver->NextVer, Ver++) { Res = Cache.VS->CmpVersion(Version,Ver.VerStr()); if (Res != 0) @@ -220,7 +222,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, Ver->ParentPkg = Pkg.Index(); Ver->Hash = Hash; - if (List.NewVersion(Ver) == false) + if ((*LastVer == 0 && _error->PendingError()) || List.NewVersion(Ver) == false) return _error->Error(_("Error occurred while processing %s (NewVersion1)"), PackageName.c_str()); @@ -246,13 +248,13 @@ bool pkgCacheGenerator::MergeList(ListParser &List, map_ptrloc *LastDesc = &Ver->DescriptionList; // Skip to the end of description set - for (; Desc.end() == false; LastDesc = &Desc->NextDesc, Desc++); + for (; Desc != 0 && Desc.end() == false; LastDesc = &Desc->NextDesc, Desc++); // Add new description *LastDesc = NewDescription(Desc, List.DescriptionLanguage(), List.Description_md5(), *LastDesc); Desc->ParentPkg = Pkg.Index(); - if (NewFileDesc(Desc,List) == false) + if ((*LastDesc == 0 && _error->PendingError()) || NewFileDesc(Desc,List) == false) return _error->Error(_("Error occurred while processing %s (NewFileDesc2)"),PackageName.c_str()); } @@ -304,7 +306,7 @@ bool pkgCacheGenerator::MergeFileProvides(ListParser &List) unsigned long Hash = List.VersionHash(); pkgCache::VerIterator Ver = Pkg.VersionList(); - for (; Ver.end() == false; Ver++) + for (; Ver != 0 && Ver.end() == false; Ver++) { if (Ver->Hash == Hash && Version.c_str() == Ver.VerStr()) { @@ -370,7 +372,7 @@ bool pkgCacheGenerator::NewFileVer(pkgCache::VerIterator &Ver, // Link it to the end of the list map_ptrloc *Last = &Ver->FileList; - for (pkgCache::VerFileIterator V = Ver.FileList(); V.end() == false; V++) + for (pkgCache::VerFileIterator V = Ver.FileList(); V != 0 && V.end() == false; V++) Last = &V->NextFile; VF->NextFile = *Last; *Last = VF.Index(); @@ -419,14 +421,14 @@ bool pkgCacheGenerator::NewFileDesc(pkgCache::DescIterator &Desc, // Get a structure unsigned long DescFile = Map.Allocate(sizeof(pkgCache::DescFile)); if (DescFile == 0) - return 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++) + for (pkgCache::DescFileIterator D = Desc.FileList(); D != 0 && D.end() == false; D++) Last = &D->NextFile; DF->NextFile = *Last; @@ -460,6 +462,8 @@ map_ptrloc pkgCacheGenerator::NewDescription(pkgCache::DescIterator &Desc, Desc->ID = Cache.HeaderP->DescriptionCount++; Desc->language_code = Map.WriteString(Lang); Desc->md5sum = Map.WriteString(md5sum.Value()); + if (Desc->language_code == 0 || Desc->md5sum == 0) + return 0; return Description; } @@ -514,7 +518,7 @@ bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver, if (OldDepVer != Ver) { OldDepLast = &Ver->DependsList; - for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; D++) + for (pkgCache::DepIterator D = Ver.DependsList(); D != 0 && D.end() == false; D++) OldDepLast = &D->NextDepends; OldDepVer = Ver; } @@ -809,7 +813,7 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, 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"); string SrcCacheFile = _config->FindFile("Dir::Cache::srcpkgcache"); @@ -861,8 +865,9 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, { // 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) + unsigned long alloc = Map->RawAllocate(SCacheF.Size()); + if (alloc == 0 || SCacheF.Read((unsigned char *)Map->Data() + alloc, + SCacheF.Size()) == false) return false; TotalSize = ComputeSize(Files.begin()+EndOfSource,Files.end()); -- cgit v1.2.3 From 9ee47c299d6491ae48b853dc104283907d4d29f9 Mon Sep 17 00:00:00 2001 From: David Kalnischkies Date: Tue, 21 Jul 2009 20:08:56 +0200 Subject: [apt-pkg/pkgcachegen.cc] remove the Ver == 0 and Desc == 0 from the last changeset as they are useless after the checks for LastVer & co work correctly. --- apt-pkg/pkgcachegen.cc | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'apt-pkg/pkgcachegen.cc') diff --git a/apt-pkg/pkgcachegen.cc b/apt-pkg/pkgcachegen.cc index e2934d1fa..ffc8d7816 100644 --- a/apt-pkg/pkgcachegen.cc +++ b/apt-pkg/pkgcachegen.cc @@ -137,7 +137,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, pkgCache::VerIterator Ver = Pkg.VersionList(); map_ptrloc *LastVer = &Pkg->VersionList; - for (; Ver != 0 && Ver.end() == false; LastVer = &Ver->NextVer, Ver++) + for (; Ver.end() == false; LastVer = &Ver->NextVer, Ver++) { pkgCache::DescIterator Desc = Ver.DescriptionList(); map_ptrloc *LastDesc = &Ver->DescriptionList; @@ -145,7 +145,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, // don't add a new description if we have one for the given // md5 && language - for ( ; Desc != 0 && Desc.end() == false; Desc++) + for ( ; Desc.end() == false; Desc++) if (MD5SumValue(Desc.md5()) == CurMd5 && Desc.LanguageCode() == List.DescriptionLanguage()) duplicate=true; @@ -153,7 +153,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, continue; for (Desc = Ver.DescriptionList(); - Desc != 0 && Desc.end() == false; + Desc.end() == false; LastDesc = &Desc->NextDesc, Desc++) { if (MD5SumValue(Desc.md5()) == CurMd5) @@ -175,7 +175,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, pkgCache::VerIterator Ver = Pkg.VersionList(); map_ptrloc *LastVer = &Pkg->VersionList; int Res = 1; - for (; Ver != 0 && Ver.end() == false; LastVer = &Ver->NextVer, Ver++) + for (; Ver.end() == false; LastVer = &Ver->NextVer, Ver++) { Res = Cache.VS->CmpVersion(Version,Ver.VerStr()); if (Res >= 0) @@ -209,7 +209,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, // Skip to the end of the same version set. if (Res == 0) { - for (; Ver != 0 && Ver.end() == false; LastVer = &Ver->NextVer, Ver++) + for (; Ver.end() == false; LastVer = &Ver->NextVer, Ver++) { Res = Cache.VS->CmpVersion(Version,Ver.VerStr()); if (Res != 0) @@ -248,7 +248,7 @@ bool pkgCacheGenerator::MergeList(ListParser &List, map_ptrloc *LastDesc = &Ver->DescriptionList; // Skip to the end of description set - for (; Desc != 0 && Desc.end() == false; LastDesc = &Desc->NextDesc, Desc++); + for (; Desc.end() == false; LastDesc = &Desc->NextDesc, Desc++); // Add new description *LastDesc = NewDescription(Desc, List.DescriptionLanguage(), List.Description_md5(), *LastDesc); @@ -306,7 +306,7 @@ bool pkgCacheGenerator::MergeFileProvides(ListParser &List) unsigned long Hash = List.VersionHash(); pkgCache::VerIterator Ver = Pkg.VersionList(); - for (; Ver != 0 && Ver.end() == false; Ver++) + for (; Ver.end() == false; Ver++) { if (Ver->Hash == Hash && Version.c_str() == Ver.VerStr()) { -- cgit v1.2.3 From eb162ff79b93ea98380f4555e0fe3116993241fb Mon Sep 17 00:00:00 2001 From: David Kalnischkies Date: Thu, 23 Jul 2009 14:05:41 +0200 Subject: [apt-pkg] yet another bit of mmap and pkgcachegen housekeeping * add mmap error message also to the dynamic mmap * remove some more {Ver,Desc} == 0 checks in for loops * try to respect the given flags to the dynamic mmap * open cached caches not as ReadOnly and not as Shared, so we always have a copy of the cache in the memory we can modify (e.g. set the hold state on-the-fly) --- apt-pkg/pkgcachegen.cc | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) (limited to 'apt-pkg/pkgcachegen.cc') diff --git a/apt-pkg/pkgcachegen.cc b/apt-pkg/pkgcachegen.cc index ffc8d7816..68180c702 100644 --- a/apt-pkg/pkgcachegen.cc +++ b/apt-pkg/pkgcachegen.cc @@ -372,7 +372,7 @@ bool pkgCacheGenerator::NewFileVer(pkgCache::VerIterator &Ver, // Link it to the end of the list map_ptrloc *Last = &Ver->FileList; - for (pkgCache::VerFileIterator V = Ver.FileList(); V != 0 && V.end() == false; V++) + for (pkgCache::VerFileIterator V = Ver.FileList(); V.end() == false; V++) Last = &V->NextFile; VF->NextFile = *Last; *Last = VF.Index(); @@ -428,7 +428,7 @@ bool pkgCacheGenerator::NewFileDesc(pkgCache::DescIterator &Desc, // Link it to the end of the list map_ptrloc *Last = &Desc->FileList; - for (pkgCache::DescFileIterator D = Desc.FileList(); D != 0 && D.end() == false; D++) + for (pkgCache::DescFileIterator D = Desc.FileList(); D.end() == false; D++) Last = &D->NextFile; DF->NextFile = *Last; @@ -518,7 +518,7 @@ bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver, if (OldDepVer != Ver) { OldDepLast = &Ver->DependsList; - for (pkgCache::DepIterator D = Ver.DependsList(); D != 0 && D.end() == false; D++) + for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; D++) OldDepLast = &D->NextDepends; OldDepVer = Ver; } @@ -670,7 +670,7 @@ static bool CheckValidity(const string &CacheFile, FileIterator Start, // Map it FileFd CacheF(CacheFile,FileFd::ReadOnly); - SPtr Map = new MMap(CacheF,MMap::Public | MMap::ReadOnly); + SPtr Map = new MMap(CacheF,0); pkgCache Cache(Map); if (_error->PendingError() == true || Map->Size() == 0) { @@ -854,7 +854,7 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, else { // Just build it in memory.. - Map = new DynamicMMap(MMap::Public,MapSize); + Map = new DynamicMMap(0,MapSize); } // Lets try the source cache. @@ -866,8 +866,9 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, // Preload the map with the source cache FileFd SCacheF(SrcCacheFile,FileFd::ReadOnly); unsigned long alloc = Map->RawAllocate(SCacheF.Size()); - if (alloc == 0 || SCacheF.Read((unsigned char *)Map->Data() + alloc, - SCacheF.Size()) == false) + if ((alloc == 0 && _error->PendingError()) + || SCacheF.Read((unsigned char *)Map->Data() + alloc, + SCacheF.Size()) == false) return false; TotalSize = ComputeSize(Files.begin()+EndOfSource,Files.end()); @@ -928,7 +929,7 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, if (CacheF != 0) { delete Map.UnGuard(); - *OutMap = new MMap(*CacheF,MMap::Public | MMap::ReadOnly); + *OutMap = new MMap(*CacheF,0); } else { @@ -950,8 +951,7 @@ bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap) if (_system->AddStatusFiles(Files) == false) return false; - SPtr Map; - Map = new DynamicMMap(MMap::Public,MapSize); + SPtr Map = new DynamicMMap(0,MapSize); unsigned long CurrentSize = 0; unsigned long TotalSize = 0; -- cgit v1.2.3