#include <apt-pkg/strutl.h>
#include <apt-pkg/configuration.h>
#include <apt-pkg/aptconfiguration.h>
+#include <apt-pkg/macros.h>
#include <apti18n.h>
#include <unistd.h>
#include <ctype.h>
-#include <system.h>
/*}}}*/
using std::string;
Dirty = false;
HeaderSz = sizeof(pkgCache::Header);
+ GroupSz = sizeof(pkgCache::Group);
PackageSz = sizeof(pkgCache::Package);
PackageFileSz = sizeof(pkgCache::PackageFile);
VersionSz = sizeof(pkgCache::Version);
VerFileSz = sizeof(pkgCache::VerFile);
DescFileSz = sizeof(pkgCache::DescFile);
+ GroupCount = 0;
PackageCount = 0;
VersionCount = 0;
DescriptionCount = 0;
bool pkgCache::Header::CheckSizes(Header &Against) const
{
if (HeaderSz == Against.HeaderSz &&
+ GroupSz == Against.GroupSz &&
PackageSz == Against.PackageSz &&
PackageFileSz == Against.PackageFileSz &&
VersionSz == Against.VersionSz &&
/* */
pkgCache::pkgCache(MMap *Map, bool DoMap) : Map(*Map)
{
+ // call getArchitectures() with cached=false to ensure that the
+ // architectures cache is re-evaulated. this is needed in cases
+ // when the APT::Architecture field changes between two cache creations
+ MultiArchEnabled = APT::Configuration::getArchitectures(false).size() > 1;
if (DoMap == true)
ReMap();
}
// Cache::ReMap - Reopen the cache file /*{{{*/
// ---------------------------------------------------------------------
/* If the file is already closed then this will open it open it. */
-bool pkgCache::ReMap()
+bool pkgCache::ReMap(bool const &Errorchecks)
{
// Apply the typecasts.
HeaderP = (Header *)Map.Data();
StringItemP = (StringItem *)Map.Data();
StrP = (char *)Map.Data();
+ if (Errorchecks == false)
+ return true;
+
if (Map.Size() == 0 || HeaderP == 0)
return _error->Error(_("Empty package cache"));
return Hash % _count(HeaderP->PkgHashTable);
}
+ /*}}}*/
+// Cache::SingleArchFindPkg - Locate a package by name /*{{{*/
+// ---------------------------------------------------------------------
+/* Returns 0 on error, pointer to the package otherwise
+ The multiArch enabled methods will fallback to this one as it is (a bit)
+ faster for single arch environments and realworld is mostly singlearch… */
+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)
+ {
+ if (Pkg->Name != 0 && StrP[Pkg->Name] == Name[0] &&
+ stringcasecmp(Name,StrP + Pkg->Name) == 0)
+ return PkgIterator(*this,Pkg);
+ }
+ return PkgIterator(*this,0);
+}
/*}}}*/
// Cache::FindPkg - Locate a package by name /*{{{*/
// ---------------------------------------------------------------------
/* Returns 0 on error, pointer to the package otherwise */
pkgCache::PkgIterator pkgCache::FindPkg(const string &Name) {
+ if (MultiArchCache() == false)
+ return SingleArchFindPkg(Name);
size_t const found = Name.find(':');
if (found == string::npos)
return FindPkg(Name, "native");
- return FindPkg(Name.substr(0, found), Name.substr(found+1, string::npos));
+ string const Arch = Name.substr(found+1);
+ if (Arch == "any")
+ return FindPkg(Name, "any");
+ return FindPkg(Name.substr(0, found), Arch);
}
/*}}}*/
// Cache::FindPkg - Locate a package by name /*{{{*/
// ---------------------------------------------------------------------
/* Returns 0 on error, pointer to the package otherwise */
-pkgCache::PkgIterator pkgCache::FindPkg(const string &Name, string Arch) {
+pkgCache::PkgIterator pkgCache::FindPkg(const string &Name, string const &Arch) {
+ if (MultiArchCache() == false) {
+ if (Arch == "native" || Arch == "all" || Arch == "any" ||
+ Arch == _config->Find("APT::Architecture"))
+ return SingleArchFindPkg(Name);
+ else
+ return PkgIterator(*this,0);
+ }
/* We make a detour via the GrpIterator here as
on a multi-arch environment a group is easier to
find than a package (less entries in the buckets) */
// GrpIterator::FindPkg - Locate a package by arch /*{{{*/
// ---------------------------------------------------------------------
/* Returns an End-Pointer on error, pointer to the package otherwise */
-pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(string Arch) {
+pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(string Arch) const {
if (unlikely(IsGood() == false || S->FirstPackage == 0))
return PkgIterator(*Owner, 0);
return PkgIterator(*Owner, 0);
}
/*}}}*/
+// GrpIterator::FindPreferredPkg - Locate the "best" package /*{{{*/
+// ---------------------------------------------------------------------
+/* Returns an End-Pointer on error, pointer to the package otherwise */
+pkgCache::PkgIterator pkgCache::GrpIterator::FindPreferredPkg(bool const &PreferNonVirtual) const {
+ pkgCache::PkgIterator Pkg = FindPkg("native");
+ if (Pkg.end() == false && (PreferNonVirtual == false || Pkg->VersionList != 0))
+ return Pkg;
+
+ std::vector<std::string> const archs = APT::Configuration::getArchitectures();
+ for (std::vector<std::string>::const_iterator a = archs.begin();
+ a != archs.end(); ++a) {
+ Pkg = FindPkg(*a);
+ if (Pkg.end() == false && (PreferNonVirtual == false || Pkg->VersionList != 0))
+ return Pkg;
+ }
+
+ if (PreferNonVirtual == true)
+ return FindPreferredPkg(false);
+ return PkgIterator(*Owner, 0);
+}
+ /*}}}*/
// GrpIterator::NextPkg - Locate the next package in the group /*{{{*/
// ---------------------------------------------------------------------
/* Returns an End-Pointer on error, pointer to the package otherwise.
- We can't simply ++ to the next as the list of packages includes
- "package noise" (= packages with the same hash value but different name) */
-pkgCache::PkgIterator pkgCache::GrpIterator::NextPkg(pkgCache::PkgIterator const &LastPkg) {
+ We can't simply ++ to the next as the next package of the last will
+ be from a different group (with the same hash value) */
+pkgCache::PkgIterator pkgCache::GrpIterator::NextPkg(pkgCache::PkgIterator const &LastPkg) const {
if (unlikely(IsGood() == false || S->FirstPackage == 0 ||
LastPkg.end() == true))
return PkgIterator(*Owner, 0);
- // Iterate over the list to find the next package
- pkgCache::Package *Pkg = Owner->PkgP + LastPkg.Index();
- Pkg = Owner->PkgP + Pkg->NextPackage;
- for (; Pkg != Owner->PkgP; Pkg = Owner->PkgP + Pkg->NextPackage) {
- if (S->Name == Pkg->Name)
- return PkgIterator(*Owner, Pkg);
- if ((Owner->PkgP + S->LastPackage) == Pkg)
- break;
- }
+ if (S->LastPackage == LastPkg.Index())
+ return PkgIterator(*Owner, 0);
- return PkgIterator(*Owner, 0);
+ return PkgIterator(*Owner, Owner->PkgP + LastPkg->NextPackage);
}
/*}}}*/
// GrpIterator::operator ++ - Postfix incr /*{{{*/
return out;
}
/*}}}*/
+// PkgIterator::FullName - Returns Name and (maybe) Architecture /*{{{*/
+// ---------------------------------------------------------------------
+/* Returns a name:arch string */
+std::string pkgCache::PkgIterator::FullName(bool const &Pretty) const
+{
+ string fullname = Name();
+ if (Pretty == false ||
+ (strcmp(Arch(), "all") != 0 && _config->Find("APT::Architecture") != Arch()))
+ return fullname.append(":").append(Arch());
+ return fullname;
+}
+ /*}}}*/
// DepIterator::IsCritical - Returns true if the dep is important /*{{{*/
// ---------------------------------------------------------------------
/* Currently critical deps are defined as depends, predepends and
conflicts (including dpkg's Breaks fields). */
-bool pkgCache::DepIterator::IsCritical()
+bool pkgCache::DepIterator::IsCritical() const
{
if (S->Type == pkgCache::Dep::Conflicts ||
S->Type == pkgCache::Dep::DpkgBreaks ||
In Conjunction with the DepCache the value of Result may not be
super-good since the policy may have made it uninstallable. Using
AllTargets is better in this case. */
-bool pkgCache::DepIterator::SmartTargetPkg(PkgIterator &Result)
+bool pkgCache::DepIterator::SmartTargetPkg(PkgIterator &Result) const
{
Result = TargetPkg();
provides. It includes every possible package-version that could satisfy
the dependency. The last item in the list has a 0. The resulting pointer
must be delete [] 'd */
-pkgCache::Version **pkgCache::DepIterator::AllTargets()
+pkgCache::Version **pkgCache::DepIterator::AllTargets() const
{
Version **Res = 0;
unsigned long Size =0;
}
}
/*}}}*/
+// ostream operator to handle string representation of a dependecy /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+std::ostream& operator<<(ostream& out, pkgCache::DepIterator D)
+{
+ if (D.end() == true)
+ return out << "invalid dependency";
+
+ pkgCache::PkgIterator P = D.ParentPkg();
+ pkgCache::PkgIterator T = D.TargetPkg();
+
+ out << (P.end() ? "invalid pkg" : P.FullName(false)) << " " << D.DepType()
+ << " on ";
+ if (T.end() == true)
+ out << "invalid pkg";
+ else
+ out << T;
+
+ if (D->Version != 0)
+ out << " (" << D.CompType() << " " << D.TargetVer() << ")";
+
+ return out;
+}
+ /*}}}*/
// VerIterator::CompareVer - Fast version compare for same pkgs /*{{{*/
// ---------------------------------------------------------------------
/* This just looks over the version list to see if B is listed before A. In
return false;
}
/*}}}*/
+// VerIterator::Pseudo - Check if this version is a pseudo one /*{{{*/
+// ---------------------------------------------------------------------
+/* Sometimes you have the need to express dependencies with versions
+ which doesn't really exist or exist multiply times for "different"
+ packages. We need these versions for dependency resolution but they
+ are a problem everytime we need to download/install something. */
+bool pkgCache::VerIterator::Pseudo() const
+{
+ if (S->MultiArch == pkgCache::Version::All &&
+ strcmp(Arch(true),"all") != 0)
+ {
+ GrpIterator const Grp = ParentPkg().Group();
+ return (Grp->LastPackage != Grp->FirstPackage);
+ }
+ return false;
+}
+ /*}}}*/
// VerIterator::NewestFile - Return the newest file version relation /*{{{*/
// ---------------------------------------------------------------------
/* This looks at the version numbers associated with all of the sources
// ---------------------------------------------------------------------
/* This describes the version from a release-centric manner. The output is a
list of Label:Version/Archive */
-string pkgCache::VerIterator::RelStr()
+string pkgCache::VerIterator::RelStr() const
{
bool First = true;
string Res;
projects / apt.git / blobdiff