1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
4 * Copyright (C) 2008 SUSE Linux Products GmbH
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 #ifndef ZYPP_SOLVER_DETAIL_QUEUEITEM_H
22 #define ZYPP_SOLVER_DETAIL_QUEUEITEM_H
28 #include "zypp/solver/detail/Types.h"
29 #include "zypp/base/ReferenceCounted.h"
30 #include "zypp/base/NonCopyable.h"
31 #include "zypp/base/PtrTypes.h"
32 #include "zypp/ResPool.h"
34 /////////////////////////////////////////////////////////////////////////
36 { ///////////////////////////////////////////////////////////////////////
37 ///////////////////////////////////////////////////////////////////////
39 { /////////////////////////////////////////////////////////////////////
40 /////////////////////////////////////////////////////////////////////
42 { ///////////////////////////////////////////////////////////////////
45 QUEUE_ITEM_TYPE_UNKNOWN = 0,
46 QUEUE_ITEM_TYPE_UPDATE,
47 QUEUE_ITEM_TYPE_INSTALL,
48 QUEUE_ITEM_TYPE_DELETE,
49 QUEUE_ITEM_TYPE_INSTALL_ONE_OF,
51 } SolverQueueItemType;
54 typedef std::list<SolverQueueItem_Ptr> SolverQueueItemList;
56 #define CMP(a,b) (((a) < (b)) - ((b) < (a)))
58 ///////////////////////////////////////////////////////////////////
60 // CLASS NAME : SolverQueueItem
62 class SolverQueueItem : public base::ReferenceCounted, private base::NonCopyable {
66 SolverQueueItemType _type;
71 SolverQueueItem (SolverQueueItemType type, const ResPool & pool);
75 virtual ~SolverQueueItem();
77 // ---------------------------------- I/O
79 virtual std::ostream & dumpOn( std::ostream & str ) const;
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);
85 // ---------------------------------- accessors
87 ResPool pool (void) const { return _pool; }
89 // ---------------------------------- methods
91 void copy (const SolverQueueItem *from);
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; }
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); }
107 ///////////////////////////////////////////////////////////////////
108 };// namespace detail
109 /////////////////////////////////////////////////////////////////////
110 /////////////////////////////////////////////////////////////////////
111 };// namespace solver
112 ///////////////////////////////////////////////////////////////////////
113 ///////////////////////////////////////////////////////////////////////
115 /////////////////////////////////////////////////////////////////////////
117 #endif // ZYPP_SOLVER_DETAIL_QUEUEITEM_H