libzypp  14.48.5
SolverQueueItem.h
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20 
21 #ifndef ZYPP_SOLVER_DETAIL_QUEUEITEM_H
22 #define ZYPP_SOLVER_DETAIL_QUEUEITEM_H
23 
24 #include <iosfwd>
25 #include <list>
26 #include <string>
27 
30 #include "zypp/base/NonCopyable.h"
31 #include "zypp/base/PtrTypes.h"
32 #include "zypp/ResPool.h"
33 
35 namespace zypp
36 {
37  namespace solver
39  {
40  namespace detail
42  {
43 
44 typedef enum {
52 
53 
54 typedef std::list<SolverQueueItem_Ptr> SolverQueueItemList;
55 
56 #define CMP(a,b) (((a) < (b)) - ((b) < (a)))
57 
59 //
60 // CLASS NAME : SolverQueueItem
61 
63 
64  private:
65 
68 
69  protected:
70 
72 
73  public:
74 
75  virtual ~SolverQueueItem();
76 
77  // ---------------------------------- I/O
78 
79  virtual std::ostream & dumpOn( std::ostream & str ) const;
80 
81  friend std::ostream& operator<<(std::ostream & str, const SolverQueueItem & obj)
82  { return obj.dumpOn (str); }
83  friend std::ostream& operator<<(std::ostream & str, const SolverQueueItemList & itemlist);
84 
85  // ---------------------------------- accessors
86 
87  ResPool pool (void) const { return _pool; }
88 
89  // ---------------------------------- methods
90 
91  void copy (const SolverQueueItem *from);
92 
93  bool isDelete (void) const { return _type == QUEUE_ITEM_TYPE_DELETE; }
94  bool isInstall (void) const { return _type == QUEUE_ITEM_TYPE_INSTALL; }
95  bool isUpdate (void) const { return _type == QUEUE_ITEM_TYPE_UPDATE; }
96  bool isLock (void) const { return _type == QUEUE_ITEM_TYPE_LOCK; }
97  bool isInstallOneOf (void) const { return _type == QUEUE_ITEM_TYPE_INSTALL_ONE_OF; }
98 
99 
100  virtual SolverQueueItem_Ptr copy (void) const = 0;
101  virtual bool addRule (sat::detail::CQueue & q) =0 ;
102  virtual int cmp (SolverQueueItem_constPtr item) const = 0;
103  int compare (SolverQueueItem_constPtr item) const { return CMP(_type, item->_type); }
104 
105 };
106 
108  };// namespace detail
111  };// namespace solver
114 };// namespace zypp
116 
117 #endif // ZYPP_SOLVER_DETAIL_QUEUEITEM_H
virtual int cmp(SolverQueueItem_constPtr item) const =0
SolverQueueItem(SolverQueueItemType type, const ResPool &pool)
virtual std::ostream & dumpOn(std::ostream &str) const
Overload to realize std::ostream & operator<<.
std::list< SolverQueueItem_Ptr > SolverQueueItemList
boost::noncopyable NonCopyable
Ensure derived classes cannot be copied.
Definition: NonCopyable.h:26
virtual bool addRule(sat::detail::CQueue &q)=0
virtual SolverQueueItem_Ptr copy(void) const =0
Base class for reference counted objects.
Global ResObject pool.
Definition: ResPool.h:48
#define CMP(a, b)
::_Queue CQueue
Wrapped libsolv C data type exposed as backdoor.
Definition: PoolMember.h:87
friend std::ostream & operator<<(std::ostream &str, const SolverQueueItem &obj)
int compare(SolverQueueItem_constPtr item) const