zypp::solver::detail::InstallOrder Class Reference

compute Installation order. More...

#include <InstallOrder.h>

List of all members.

Public Member Functions
	InstallOrder (const ResPool &pool, const PoolItemSet &toinstall, const PoolItemSet &installed)
	Constructor.
PoolItemList	computeNextSet ()
	Compute a list of ResItems which have no requirements and can be installed in parallel without conflicts.
void	setInstalled (PoolItem_Ref item)
	set a Solvable as installed, computeNextSet is able to compute a new set then
void	setInstalled (const PoolItemList &list)
	like above, for convenience
void	startrdfs ()
	recoursive depth first search, build internal trees
void	init ()
	Initialize data structures.
const PoolItemList	getTopSorted () const
	compute topological sorted list
const void	printAdj (std::ostream &os, bool reversed=false) const
Private Types
typedef std::map< PoolItem_Ref, PoolItemList >	Graph
	adjacency list type
typedef std::map< PoolItem_Ref, NodeInfo >	Nodes
Private Member Functions
void	rdfsvisit (PoolItem_Ref item)
PoolItem_Ref	findProviderInSet (const Capability requirement, const PoolItemSet &candidates) const
bool	doesProvide (const Capability requirement, PoolItem_Ref item) const
Private Attributes
const ResPool &	_pool
PoolItemSet	_toinstall
PoolItemSet	_installed
Graph	_graph
	adjacency list, package -> requirements
Graph	_rgraph
	reversed graph, package -> referers
Nodes	_nodes
unsigned	_rdfstime
PoolItemList	_topsorted
bool	_dirty
unsigned	_numrun
Classes
struct	NodeInfo

---

Detailed Description

compute Installation order.

There are two Interfaces:

• getTopSorted: return flat list of packages in proper order
  
• computeNextSet: return only packages without requirements, see comment below
  

Definition at line 60 of file InstallOrder.h.

---

Member Typedef Documentation

typedef std::map<PoolItem_Ref, PoolItemList> zypp::solver::detail::InstallOrder::Graph [private]

adjacency list type Definition at line 68 of file InstallOrder.h.

typedef std::map<PoolItem_Ref, NodeInfo> zypp::solver::detail::InstallOrder::Nodes [private]

Definition at line 89 of file InstallOrder.h.

---

Constructor & Destructor Documentation

zypp::solver::detail::InstallOrder::InstallOrder (  const ResPool &  pool, const PoolItemSet &  toinstall, const PoolItemSet &  installed )

Constructor. Parameters: toinstall  Set of ResItems that have to be installed installed  Set of ResItems that are already installed Definition at line 55 of file InstallOrder.cc. References _DEBUG, _installed, and _toinstall.

---

Member Function Documentation

void zypp::solver::detail::InstallOrder::rdfsvisit (  PoolItem_Ref  item  )  [private]

Definition at line 215 of file InstallOrder.cc. References _nodes, _rdfstime, zypp::solver::detail::InstallOrder::NodeInfo::begintime, ITEMNAME, zypp::Dep::PREREQUIRES, zypp::solver::detail::InstallOrder::NodeInfo::visited, and XXX.

PoolItem_Ref zypp::solver::detail::InstallOrder::findProviderInSet (  const Capability  requirement, const PoolItemSet &  candidates )  const [private]

Definition at line 169 of file InstallOrder.cc. References doesProvide().

bool zypp::solver::detail::InstallOrder::doesProvide (  const Capability  requirement, PoolItem_Ref  item )  const [private]

Definition at line 156 of file InstallOrder.cc. References zypp::Dep::PROVIDES, and zypp::CapMatch::yes. Referenced by findProviderInSet().

PoolItemList zypp::solver::detail::InstallOrder::computeNextSet (   )

Compute a list of ResItems which have no requirements and can be installed in parallel without conflicts. Use setInstalled to make computation of a different set possible Definition at line 93 of file InstallOrder.cc. References _dirty, _nodes, ITEMNAME, startrdfs(), and XXX.

void zypp::solver::detail::InstallOrder::setInstalled (  PoolItem_Ref  item  )

set a Solvable as installed, computeNextSet is able to compute a new set then Definition at line 119 of file InstallOrder.cc. References _dirty, _installed, _nodes, _rgraph, _toinstall, ITEMNAME, WAR, and XXX. Referenced by setInstalled().

void zypp::solver::detail::InstallOrder::setInstalled (  const PoolItemList &  list  )

like above, for convenience Definition at line 145 of file InstallOrder.cc. References setInstalled().

void zypp::solver::detail::InstallOrder::startrdfs (   )

recoursive depth first search, build internal trees Definition at line 317 of file InstallOrder.cc. References _graph, _nodes, _numrun, _rdfstime, _rgraph, _toinstall, _topsorted, and XXX. Referenced by computeNextSet(), and init().

void zypp::solver::detail::InstallOrder::init (   )  [inline]

Initialize data structures. Must be called before any other function. Definition at line 143 of file InstallOrder.h. References startrdfs().

const PoolItemList zypp::solver::detail::InstallOrder::getTopSorted (   )  const

compute topological sorted list Returns: list of resolvables in an installable order Definition at line 357 of file InstallOrder.cc. References _topsorted.

const void zypp::solver::detail::InstallOrder::printAdj (  std::ostream &  os, bool  reversed = false )  const

Definition at line 69 of file InstallOrder.cc. References _graph, _nodes, _rgraph, and name.

---

Member Data Documentation

const ResPool& zypp::solver::detail::InstallOrder::_pool [private]

Definition at line 63 of file InstallOrder.h.

PoolItemSet zypp::solver::detail::InstallOrder::_toinstall [private]

Definition at line 64 of file InstallOrder.h. Referenced by InstallOrder(), setInstalled(), and startrdfs().

PoolItemSet zypp::solver::detail::InstallOrder::_installed [private]

Definition at line 65 of file InstallOrder.h. Referenced by InstallOrder(), and setInstalled().

Graph zypp::solver::detail::InstallOrder::_graph [private]

adjacency list, package -> requirements Definition at line 71 of file InstallOrder.h. Referenced by printAdj(), and startrdfs().

Graph zypp::solver::detail::InstallOrder::_rgraph [private]

reversed graph, package -> referers Definition at line 74 of file InstallOrder.h. Referenced by printAdj(), setInstalled(), and startrdfs().

Nodes zypp::solver::detail::InstallOrder::_nodes [private]

Definition at line 91 of file InstallOrder.h. Referenced by computeNextSet(), printAdj(), rdfsvisit(), setInstalled(), and startrdfs().

unsigned zypp::solver::detail::InstallOrder::_rdfstime [private]

Definition at line 93 of file InstallOrder.h. Referenced by rdfsvisit(), and startrdfs().

PoolItemList zypp::solver::detail::InstallOrder::_topsorted [private]

Definition at line 95 of file InstallOrder.h. Referenced by getTopSorted(), and startrdfs().

bool zypp::solver::detail::InstallOrder::_dirty [private]

Definition at line 97 of file InstallOrder.h. Referenced by computeNextSet(), and setInstalled().

unsigned zypp::solver::detail::InstallOrder::_numrun [private]

Definition at line 99 of file InstallOrder.h. Referenced by startrdfs().

---

The documentation for this class was generated from the following files:

• zypp/solver/detail/InstallOrder.h
• zypp/solver/detail/InstallOrder.cc

---