apt-private/private-cachefile.h

   1 #ifndef APT_PRIVATE_CACHEFILE_H
   2 #define APT_PRIVATE_CACHEFILE_H
   3
   4 #include <apt-pkg/cachefile.h>
   5 #include <apt-pkg/progress.h>
   6 #include <apt-pkg/configuration.h>
   7 #include <apt-pkg/pkgcache.h>
   8 #include <apt-pkg/macros.h>
   9 #include <apt-pkg/sourcelist.h>
  10 #include <apt-pkg/cacheset.h>
  11
  12 #include <apti18n.h>
  13
  14 // FIXME: we need to find a way to export this
  15 class APT_PUBLIC SourceList : public pkgSourceList
  16 {
  17  public:
  18    // Add custom metaIndex (e.g. local files)
  19    void AddMetaIndex(metaIndex *mi) {
  20       SrcList.push_back(mi);
  21    }
  22
  23 };
  24
  25 // class CacheFile - Cover class for some dependency cache functions    /*{{{*/
  26 class APT_PUBLIC CacheFile : public pkgCacheFile
  27 {
  28    public:
  29    std::vector<map_pointer_t> UniverseList;
  30
  31    bool CheckDeps(bool AllowBroken = false);
  32    bool BuildCaches(bool WithLock = true)
  33    {
  34       OpTextProgress Prog(*_config);
  35       if (pkgCacheFile::BuildCaches(&Prog,WithLock) == false)
  36          return false;
  37       return true;
  38    }
  39    // FIXME: this can go once the "libapt-pkg" pkgSourceList has a way
  40    //        to add custom metaIndexes (or custom local files or so)
  41    bool BuildSourceList(OpProgress */*Progress*/ = NULL) {
  42       if (SrcList != NULL)
  43          return true;
  44       SrcList = new SourceList();
  45       if (SrcList->ReadMainList() == false)
  46          return _error->Error(_("The list of sources could not be read."));
  47       return true;
  48    }
  49    bool Open(bool WithLock = true)
  50    {
  51       OpTextProgress Prog(*_config);
  52       return pkgCacheFile::Open(&Prog,WithLock);
  53    };
  54    bool OpenForInstall()
  55    {
  56       if (_config->FindB("APT::Get::Print-URIs") == true)
  57          return Open(false);
  58       else
  59          return Open(true);
  60    }
  61 };
  62                                                                         /*}}}*/
  63
  64 class SortedPackageUniverse : public APT::PackageUniverse
  65 {
  66    std::vector<map_pointer_t> &List;
  67    void LazyInit() const;
  68
  69 public:
  70    SortedPackageUniverse(CacheFile &Cache);
  71
  72    class const_iterator : public APT::Container_iterator_base<APT::PackageContainerInterface, SortedPackageUniverse, SortedPackageUniverse::const_iterator, std::vector<map_pointer_t>::const_iterator, pkgCache::PkgIterator>
  73    {
  74       pkgCache * const Cache;
  75       public:
  76          inline pkgCache::PkgIterator getType(void) const
  77          {
  78             if (*_iter == 0) return pkgCache::PkgIterator(*Cache);
  79             return pkgCache::PkgIterator(*Cache, Cache->PkgP + *_iter);
  80          }
  81          explicit const_iterator(pkgCache * const Owner, std::vector<map_pointer_t>::const_iterator i):
  82             Container_iterator_base<APT::PackageContainerInterface, SortedPackageUniverse, SortedPackageUniverse::const_iterator, std::vector<map_pointer_t>::const_iterator, pkgCache::PkgIterator>(i), Cache(Owner) {}
  83
  84    };
  85    typedef const_iterator iterator;
  86
  87    const_iterator begin() const { LazyInit(); return const_iterator(data(), List.begin()); }
  88    const_iterator end() const { LazyInit(); return const_iterator(data(), List.end()); }
  89    const_iterator cbegin() const { LazyInit(); return const_iterator(data(), List.begin()); }
  90    const_iterator cend() const { LazyInit(); return const_iterator(data(), List.end()); }
  91    iterator begin() { LazyInit(); return iterator(data(), List.begin()); }
  92    iterator end() { LazyInit(); return iterator(data(), List.end()); }
  93 };
  94
  95 #endif