libzypp 17.31.0
SolverQueueItem.h
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1/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
2/* QueueItem.h
3 *
4 * Copyright (C) 2008 SUSE Linux Products GmbH
5 *
6 * This program is free software; you can redistribute it and/or
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20
21#ifndef ZYPP_SOLVER_DETAIL_QUEUEITEM_H
22#define ZYPP_SOLVER_DETAIL_QUEUEITEM_H
23#ifndef ZYPP_USE_RESOLVER_INTERNALS
24#error Do not directly include this file!
25#else
26
27#include <iosfwd>
28#include <list>
29#include <string>
30
31#include <zypp/base/ReferenceCounted.h>
32#include <zypp/base/NonCopyable.h>
33#include <zypp/base/PtrTypes.h>
34#include <zypp/ResPool.h>
35
37namespace zypp
38{
40 namespace solver
41 {
43 namespace detail
44 {
45
47
48DEFINE_PTR_TYPE(SolverQueueItemUpdate);
49DEFINE_PTR_TYPE(SolverQueueItemDelete);
50DEFINE_PTR_TYPE(SolverQueueItemInstall);
51DEFINE_PTR_TYPE(SolverQueueItemInstallOneOf);
52DEFINE_PTR_TYPE(SolverQueueItemLock);
53
54
55typedef enum {
56 QUEUE_ITEM_TYPE_UNKNOWN = 0,
57 QUEUE_ITEM_TYPE_UPDATE,
58 QUEUE_ITEM_TYPE_INSTALL,
59 QUEUE_ITEM_TYPE_DELETE,
60 QUEUE_ITEM_TYPE_INSTALL_ONE_OF,
61 QUEUE_ITEM_TYPE_LOCK
62} SolverQueueItemType;
63
64
65typedef std::list<SolverQueueItem_Ptr> SolverQueueItemList;
66
67#define CMP(a,b) (((a) < (b)) - ((b) < (a)))
68
70//
71// CLASS NAME : SolverQueueItem
72
73class SolverQueueItem : public base::ReferenceCounted, private base::NonCopyable {
74
75 private:
76
77 SolverQueueItemType _type;
78 ResPool _pool;
79
80 protected:
81
82 SolverQueueItem (SolverQueueItemType type, const ResPool & pool);
83
84 public:
85
86 virtual ~SolverQueueItem();
87
88 // ---------------------------------- I/O
89
90 virtual std::ostream & dumpOn( std::ostream & str ) const;
91
92 friend std::ostream& operator<<(std::ostream & str, const SolverQueueItem & obj)
93 { return obj.dumpOn (str); }
94 friend std::ostream& operator<<(std::ostream & str, const SolverQueueItemList & itemlist);
95
96 // ---------------------------------- accessors
97
98 ResPool pool (void) const { return _pool; }
99
100 // ---------------------------------- methods
101
102 void copy (const SolverQueueItem *from);
103
104 bool isDelete (void) const { return _type == QUEUE_ITEM_TYPE_DELETE; }
105 bool isInstall (void) const { return _type == QUEUE_ITEM_TYPE_INSTALL; }
106 bool isUpdate (void) const { return _type == QUEUE_ITEM_TYPE_UPDATE; }
107 bool isLock (void) const { return _type == QUEUE_ITEM_TYPE_LOCK; }
108 bool isInstallOneOf (void) const { return _type == QUEUE_ITEM_TYPE_INSTALL_ONE_OF; }
109
110
111 virtual SolverQueueItem_Ptr copy (void) const = 0;
112 virtual bool addRule (sat::detail::CQueue & q) =0 ;
113 virtual int cmp (SolverQueueItem_constPtr item) const = 0;
114 int compare (SolverQueueItem_constPtr item) const { return CMP(_type, item->_type); }
115
116};
117
119 };// namespace detail
122 };// namespace solver
125};// namespace zypp
127#endif // ZYPP_USE_RESOLVER_INTERNALS
128#endif // ZYPP_SOLVER_DETAIL_QUEUEITEM_H
String related utilities and Regular expression matching.
boost::noncopyable NonCopyable
Ensure derived classes cannot be copied.
Definition: NonCopyable.h:26
std::ostream & copy(std::istream &from_r, std::ostream &to_r)
Copy istream to ostream.
Definition: IOStream.h:50
::s_Queue CQueue
Wrapped libsolv C data type exposed as backdoor.
Definition: PoolMember.h:62
DEFINE_PTR_TYPE(HelixResolvable)
std::list< SolverQueueItem_Ptr > SolverQueueItemList
Definition: Types.h:45
std::ostream & operator<<(std::ostream &os, const SolutionActionList &actionlist)
Easy-to use interface to the ZYPP dependency resolver.
Definition: CodePitfalls.doc:2
std::ostream & dumpOn(std::ostream &str, const Capability &obj)
Definition: Capability.cc:567