pool.h

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*
* This file contains private API, this might break at any time between releases.
* You have been warned!
*
*/
#ifndef ZYPPNG_SAT_POOL_H_INCLUDED
#define ZYPPNG_SAT_POOL_H_INCLUDED
 
#include <zypp-core/base/NonCopyable.h>
#include <zypp-core/Pathname.h>
#include <zypp-core/base/Iterable.h>
 
#include <zypp/ng/arch.h>
#include <zypp/ng/sat/poolconstants.h>
#include <zypp/ng/sat/components/poolcomponents.h>
#include <zypp/ng/base/serialnumber.h>
#include <zypp/ng/sat/repository.h>
#include <zypp/ng/sat/solvable.h>
#include <zypp/ng/sat/queue.h>
#include <zypp/ng/sat/preparedpool.h>
 
namespace zyppng::sat {

  class Pool
  {
      friend class Repository;
      friend class Solvable;
 
    public:
      using RepositoryIterable = zypp::Iterable<detail::RepositoryIterator>;
      using SolvableIterable   = zypp::Iterable<detail::SolvableIterator>;
 
    public:

      Pool();
 
      Pool(const Pool &) = delete;
      Pool(Pool &&) = delete;
      Pool &operator=(const Pool &) = delete;
      Pool &operator=(Pool &&) = delete;

      ~Pool();

      detail::CPool * get() const
      { return _pool; }

      const SerialNumber & serial() const
      { return _serial; }

      const SerialNumber & serialIDs() const
      { return _serialIDs; }

      PreparedPool prepare();
 
 
      detail::size_type capacity() const;

      void setDirty( PoolInvalidation invalidation, std::initializer_list<std::string_view> reasons );

      void clear();
 
    public:

      static const std::string & systemRepoAlias();

      Repository reposFind( const std::string & alias_r ) const;

      Repository reposInsert( const std::string & alias_r );

      void reposErase( const std::string & alias_r )
      { reposFind( alias_r ).eraseFromPool(); }

      void reposEraseAll()
      { while ( ! reposEmpty() ) reposErase( repos().begin()->alias() ); }

      bool reposEmpty() const;

      detail::size_type reposSize() const;

      RepositoryIterable repos() const;

      Repository findSystemRepo() const;

      Repository systemRepo();
 
      bool isSystemRepo( detail::CRepo * repo_r ) const
      { return repo_r && _pool->installed == repo_r; }
 
    private:
      detail::CRepo * _systemRepoPtr() const
      { return _pool->installed; }

 
    public:

      bool solvablesEmpty() const;

      detail::size_type solvablesSize() const;

      SolvableIterable solvables() const;
 
    public:
      zypp::Pathname rootDir() const
      {
        const char * rd = ::pool_get_rootdir( _pool );
        return( rd ? rd : "/" );
      }

      void rootDir( const zypp::Pathname & root_r )
      {
        if ( root_r.empty() || root_r == "/" )
          ::pool_set_rootdir( _pool, nullptr );
        else
          ::pool_set_rootdir( _pool, root_r.c_str() );
      }
 
    private:

      detail::CRepo * _createRepo( const std::string & name_r );

      void _deleteRepo( detail::CRepo * repo_r );

      int _addSolv( detail::CRepo * repo_r, FILE * file_r );

      int _addHelix( detail::CRepo * repo_r, FILE * file_r );

      int _addTesttags( detail::CRepo * repo_r, FILE * file_r );

      detail::SolvableIdType _addSolvables( detail::CRepo * repo_r, unsigned count_r );

      void _postRepoAdd( detail::CRepo * repo_r );

      bool validSolvable( const detail::CSolvable & slv_r ) const
      { return slv_r.repo; }

      bool validSolvable( detail::SolvableIdType id_r ) const
      { return id_r < unsigned(_pool->nsolvables) && validSolvable( _pool->solvables[id_r] ); }

      bool validSolvable( const detail::CSolvable * slv_r ) const
      { return _pool->solvables <= slv_r && slv_r <= _pool->solvables+_pool->nsolvables && validSolvable( *slv_r ); }
 
      detail::CPool * getPool() const
      { return _pool; }

      detail::CRepo * getRepo( detail::RepoIdType id_r ) const
      { return id_r; }

      detail::CSolvable * getSolvable( detail::SolvableIdType id_r ) const
      {
        if ( validSolvable( id_r ) )
          return &_pool->solvables[id_r];
        return 0;
      }
 
    public:
      detail::IdType parserpmrichdep( const char * capstr_r )
      { return ::pool_parserpmrichdep( _pool, capstr_r ); }

      detail::SolvableIdType getFirstId()  const
      { return getNextId( 1 ); }

      detail::SolvableIdType getNextId( detail::SolvableIdType id_r ) const
      {
        for( ++id_r; id_r < unsigned(_pool->nsolvables); ++id_r )
        {
          if ( validSolvable( _pool->solvables[id_r] ) )
            return id_r;
        }
        return detail::noSolvableId;
      }

      PoolComponentSet & components() { return _componentsSet; }
      const PoolComponentSet & components() const { return _componentsSet; }
 
      template <typename T>
      T & component() { return _componentsSet.assertComponent<T>(); }
 
      template <typename T>
      const T * findComponent() const { return _componentsSet.findComponent<T>(); }
 
    private:
      detail::CPool * _pool;
      SerialNumber _serial;
      SerialNumber _serialIDs;
      SerialNumberWatcher _watcher;
      PoolComponentSet _componentsSet;
#ifndef NDEBUG
      bool _preparing = false;
#endif
  };
}
 
#endif