Please see doc/apt-pkg/cache.sgml for a more detailed description of
this format. Also be sure to keep that file up-to-date!!
- This is the general utility functions for cache managment. They provide
+ This is the general utility functions for cache management. They provide
a complete set of accessor functions for the cache. The cacheiterators
header contains the STL-like iterators that can be used to easially
navigate the cache as well as seemlessly dereference the mmap'd
#include <apt-pkg/strutl.h>
#include <apt-pkg/configuration.h>
#include <apt-pkg/aptconfiguration.h>
+#include <apt-pkg/mmap.h>
#include <apt-pkg/macros.h>
+#include <stddef.h>
+#include <string.h>
+#include <ostream>
+#include <vector>
#include <string>
#include <sys/stat.h>
-#include <unistd.h>
-#include <ctype.h>
#include <apti18n.h>
/*}}}*/
/* Whenever the structures change the major version should be bumped,
whenever the generator changes the minor version should be bumped. */
- MajorVersion = 8;
- MinorVersion = 1;
+ MajorVersion = 10;
+ MinorVersion = 0;
Dirty = false;
HeaderSz = sizeof(pkgCache::Header);
MaxDescFileSize = 0;
FileList = 0;
- StringList = 0;
VerSysName = 0;
Architecture = 0;
- memset(PkgHashTable,0,sizeof(PkgHashTable));
- memset(GrpHashTable,0,sizeof(GrpHashTable));
+ Architectures = 0;
+ HashTableSize = _config->FindI("APT::Cache-HashTableSize", 10 * 1048);
memset(Pools,0,sizeof(Pools));
CacheFileSize = 0;
DescP = (Description *)Map.Data();
ProvideP = (Provides *)Map.Data();
DepP = (Dependency *)Map.Data();
- StringItemP = (StringItem *)Map.Data();
StrP = (char *)Map.Data();
if (Errorchecks == false)
if (Map.Size() < HeaderP->CacheFileSize)
return _error->Error(_("The package cache file is corrupted, it is too small"));
+ if (HeaderP->VerSysName == 0 || HeaderP->Architecture == 0 || HeaderP->Architectures == 0)
+ return _error->Error(_("The package cache file is corrupted"));
+
// Locate our VS..
- if (HeaderP->VerSysName == 0 ||
- (VS = pkgVersioningSystem::GetVS(StrP + HeaderP->VerSysName)) == 0)
+ if ((VS = pkgVersioningSystem::GetVS(StrP + HeaderP->VerSysName)) == 0)
return _error->Error(_("This APT does not support the versioning system '%s'"),StrP + HeaderP->VerSysName);
- // Chcek the arhcitecture
- if (HeaderP->Architecture == 0 ||
- _config->Find("APT::Architecture") != StrP + HeaderP->Architecture)
- return _error->Error(_("The package cache was built for a different architecture"));
+ // Check the architecture
+ std::vector<std::string> archs = APT::Configuration::getArchitectures();
+ std::vector<std::string>::const_iterator a = archs.begin();
+ std::string list = *a;
+ for (++a; a != archs.end(); ++a)
+ list.append(",").append(*a);
+ if (_config->Find("APT::Architecture") != StrP + HeaderP->Architecture ||
+ list != StrP + HeaderP->Architectures)
+ return _error->Error(_("The package cache was built for different architectures: %s vs %s"), StrP + HeaderP->Architectures, list.c_str());
+
return true;
}
/*}}}*/
/* This is used to generate the hash entries for the HashTable. With my
package list from bo this function gets 94% table usage on a 512 item
table (480 used items) */
-unsigned long pkgCache::sHash(const string &Str) const
+map_id_t pkgCache::sHash(const string &Str) const
{
unsigned long Hash = 0;
for (string::const_iterator I = Str.begin(); I != Str.end(); ++I)
Hash = 41 * Hash + tolower_ascii(*I);
- return Hash % _count(HeaderP->PkgHashTable);
+ return Hash % HeaderP->HashTableSize;
}
-unsigned long pkgCache::sHash(const char *Str) const
+map_id_t pkgCache::sHash(const char *Str) const
{
unsigned long Hash = tolower_ascii(*Str);
for (const char *I = Str + 1; *I != 0; ++I)
Hash = 41 * Hash + tolower_ascii(*I);
- return Hash % _count(HeaderP->PkgHashTable);
+ return Hash % HeaderP->HashTableSize;
}
/*}}}*/
// Cache::SingleArchFindPkg - Locate a package by name /*{{{*/
pkgCache::PkgIterator pkgCache::SingleArchFindPkg(const string &Name)
{
// Look at the hash bucket
- Package *Pkg = PkgP + HeaderP->PkgHashTable[Hash(Name)];
- for (; Pkg != PkgP; Pkg = PkgP + Pkg->NextPackage)
+ Package *Pkg = PkgP + HeaderP->PkgHashTable()[Hash(Name)];
+ for (; Pkg != PkgP; Pkg = PkgP + Pkg->Next)
{
- if (unlikely(Pkg->Name == 0))
- continue;
-
- int const cmp = strcasecmp(Name.c_str(), StrP + Pkg->Name);
+ int const cmp = strcmp(Name.c_str(), StrP + (GrpP + Pkg->Group)->Name);
if (cmp == 0)
return PkgIterator(*this, Pkg);
else if (cmp < 0)
return GrpIterator(*this,0);
// Look at the hash bucket for the group
- Group *Grp = GrpP + HeaderP->GrpHashTable[sHash(Name)];
+ Group *Grp = GrpP + HeaderP->GrpHashTable()[sHash(Name)];
for (; Grp != GrpP; Grp = GrpP + Grp->Next) {
- if (unlikely(Grp->Name == 0))
- continue;
-
- int const cmp = strcasecmp(Name.c_str(), StrP + Grp->Name);
+ int const cmp = strcmp(Name.c_str(), StrP + Grp->Name);
if (cmp == 0)
return GrpIterator(*this, Grp);
else if (cmp < 0)
last one we check, so we do it now. */
if (Arch == "native" || Arch == myArch || Arch == "all") {
pkgCache::Package *Pkg = Owner->PkgP + S->LastPackage;
- if (strcasecmp(myArch, Owner->StrP + Pkg->Arch) == 0)
+ if (strcmp(myArch, Owner->StrP + Pkg->Arch) == 0)
return PkgIterator(*Owner, Pkg);
Arch = myArch;
}
- /* Iterate over the list to find the matching arch
- unfortunately this list includes "package noise"
- (= different packages with same calculated hash),
- so we need to check the name also */
+ // Iterate over the list to find the matching arch
for (pkgCache::Package *Pkg = PackageList(); Pkg != Owner->PkgP;
- Pkg = Owner->PkgP + Pkg->NextPackage) {
- if (S->Name == Pkg->Name &&
- stringcasecmp(Arch, Owner->StrP + Pkg->Arch) == 0)
+ Pkg = Owner->PkgP + Pkg->Next) {
+ if (stringcmp(Arch, Owner->StrP + Pkg->Arch) == 0)
return PkgIterator(*Owner, Pkg);
if ((Owner->PkgP + S->LastPackage) == Pkg)
break;
if (S->LastPackage == LastPkg.Index())
return PkgIterator(*Owner, 0);
- return PkgIterator(*Owner, Owner->PkgP + LastPkg->NextPackage);
+ return PkgIterator(*Owner, Owner->PkgP + LastPkg->Next);
}
/*}}}*/
// GrpIterator::operator ++ - Postfix incr /*{{{*/
// ---------------------------------------------------------------------
/* This will advance to the next logical group in the hash table. */
-void pkgCache::GrpIterator::operator ++(int)
+void pkgCache::GrpIterator::operator ++(int)
{
// Follow the current links
if (S != Owner->GrpP)
S = Owner->GrpP + S->Next;
// Follow the hash table
- while (S == Owner->GrpP && (HashIndex+1) < (signed)_count(Owner->HeaderP->GrpHashTable))
+ while (S == Owner->GrpP && (HashIndex+1) < (signed)Owner->HeaderP->HashTableSize)
{
HashIndex++;
- S = Owner->GrpP + Owner->HeaderP->GrpHashTable[HashIndex];
+ S = Owner->GrpP + Owner->HeaderP->GrpHashTable()[HashIndex];
}
-};
+}
/*}}}*/
// PkgIterator::operator ++ - Postfix incr /*{{{*/
// ---------------------------------------------------------------------
/* This will advance to the next logical package in the hash table. */
-void pkgCache::PkgIterator::operator ++(int)
+void pkgCache::PkgIterator::operator ++(int)
{
// Follow the current links
if (S != Owner->PkgP)
- S = Owner->PkgP + S->NextPackage;
+ S = Owner->PkgP + S->Next;
// Follow the hash table
- while (S == Owner->PkgP && (HashIndex+1) < (signed)_count(Owner->HeaderP->PkgHashTable))
+ while (S == Owner->PkgP && (HashIndex+1) < (signed)Owner->HeaderP->HashTableSize)
{
HashIndex++;
- S = Owner->PkgP + Owner->HeaderP->PkgHashTable[HashIndex];
+ S = Owner->PkgP + Owner->HeaderP->PkgHashTable()[HashIndex];
}
-};
+}
/*}}}*/
// PkgIterator::State - Check the State of the package /*{{{*/
// ---------------------------------------------------------------------
// ---------------------------------------------------------------------
/* Return string representing of the candidate version. */
const char *
-pkgCache::PkgIterator::CandVersion() const
+pkgCache::PkgIterator::CandVersion() const
{
//TargetVer is empty, so don't use it.
VerIterator version = pkgPolicy(Owner).GetCandidateVer(*this);
if (version.IsGood())
return version.VerStr();
return 0;
-};
+}
/*}}}*/
// PkgIterator::CurVersion - Returns the current version string /*{{{*/
// ---------------------------------------------------------------------
/* Return string representing of the current version. */
const char *
-pkgCache::PkgIterator::CurVersion() const
+pkgCache::PkgIterator::CurVersion() const
{
VerIterator version = CurrentVer();
if (version.IsGood())
return CurrentVer().VerStr();
return 0;
-};
+}
/*}}}*/
// ostream operator to handle string representation of a package /*{{{*/
// ---------------------------------------------------------------------
/* Output name < cur.rent.version -> candid.ate.version | new.est.version > (section)
- Note that the characters <|>() are all literal above. Versions will be ommited
+ Note that the characters <|>() are all literal above. Versions will be omitted
if they provide no new information (e.g. there is no newer version than candidate)
If no version and/or section can be found "none" is used. */
std::ostream&
out << " -> " << candidate;
if ( newest != "none" && candidate != newest)
out << " | " << newest;
- out << " > ( " << string(Pkg.Section()==0?"none":Pkg.Section()) << " )";
+ if (Pkg->VersionList == 0)
+ out << " > ( none )";
+ else
+ out << " > ( " << string(Pkg.VersionList().Section()==0?"unknown":Pkg.VersionList().Section()) << " )";
return out;
}
/*}}}*/
// ---------------------------------------------------------------------
/* Deps like self-conflicts should be ignored as well as implicit conflicts
on virtual packages. */
-bool pkgCache::DepIterator::IsIgnorable(PkgIterator const &Pkg) const
+bool pkgCache::DepIterator::IsIgnorable(PkgIterator const &/*Pkg*/) const
{
if (IsNegative() == false)
return false;
// VerIterator::Downloadable - Checks if the version is downloadable /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool pkgCache::VerIterator::Downloadable() const
+APT_PURE bool pkgCache::VerIterator::Downloadable() const
{
VerFileIterator Files = FileList();
for (; Files.end() == false; ++Files)
// ---------------------------------------------------------------------
/* This checks to see if any of the versions files are not NotAutomatic.
True if this version is selectable for automatic installation. */
-bool pkgCache::VerIterator::Automatic() const
+APT_PURE bool pkgCache::VerIterator::Automatic() const
{
VerFileIterator Files = FileList();
for (; Files.end() == false; ++Files)
/*}}}*/
// VerIterator::TranslatedDescription - Return the a DescIter for locale/*{{{*/
// ---------------------------------------------------------------------
-/* return a DescIter for the current locale or the default if none is
+/* return a DescIter for the current locale or the default if none is
* found
*/
pkgCache::DescIterator pkgCache::VerIterator::TranslatedDescription() const
if (strcmp(Desc.LanguageCode(), "") == 0)
return Desc;
return DescriptionList();
-};
+}
/*}}}*/
// PrvIterator::IsMultiArchImplicit - added by the cache generation /*{{{*/
{
pkgCache::PkgIterator const Owner = OwnerPkg();
pkgCache::PkgIterator const Parent = ParentPkg();
- if (strcmp(Owner.Arch(), Parent.Arch()) != 0 || Owner->Name == Parent->Name)
+ if (strcmp(Owner.Arch(), Parent.Arch()) != 0 || Owner.Group()->Name == Parent.Group()->Name)
return true;
return false;
}
/*}}}*/
+APT_DEPRECATED APT_PURE const char * pkgCache::PkgIterator::Section() const {/*{{{*/
+ if (S->VersionList == 0)
+ return 0;
+ return VersionList().Section();
+}
+ /*}}}*/
projects / apt.git / blobdiff