/
ResolverProblem.cc
125 lines (108 loc) · 3.4 KB
/
ResolverProblem.cc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* ResolverProblem.cc
*
* Easy-to use interface to the ZYPP dependency resolver
*
* Copyright (C) 2000-2002 Ximian, Inc.
* Copyright (C) 2005 SUSE Linux Products GmbH
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include "zypp/ResolverProblem.h"
#include "zypp/ProblemSolution.h"
using namespace std;
/////////////////////////////////////////////////////////////////////////
namespace zypp
{ ///////////////////////////////////////////////////////////////////////
IMPL_PTR_TYPE(ResolverProblem);
//---------------------------------------------------------------------------
ostream&
operator<<( ostream& os, const ResolverProblem & problem)
{
os << "Problem:" << endl;
os << "==============================" << endl;
os << problem._description << endl;
os << problem._details << endl;
os << "------------------------------" << endl;
os << problem._solutions;
os << "==============================" << endl;
return os;
}
ostream&
operator<<( ostream& os, const ResolverProblemList & problemlist)
{
for (ResolverProblemList::const_iterator iter = problemlist.begin(); iter != problemlist.end(); ++iter) {
if (iter != problemlist.begin())
os << ", ";
os << (*iter);
}
return os;
}
//---------------------------------------------------------------------------
/**
* Constructor.
**/
ResolverProblem::ResolverProblem( const string & description, const string & details )
: _description (description)
, _details (details)
{
}
/**
* Destructor.
**/
ResolverProblem::~ResolverProblem()
{
}
/**
* Return the possible solutions to this problem.
* All problems should have at least 2-3 (mutually exclusive) solutions:
*
* - Undo: Do not perform the offending transaction
* (do not install the package that had unsatisfied requirements,
* do not remove the package that would break other packages' requirements)
*
* - Remove referrers: Remove all packages that would break because
* they depend on the package that is requested to be removed
*
* - Ignore: Inject artificial "provides" for a missing requirement
* (pretend that requirement is satisfied)
**/
ProblemSolutionList
ResolverProblem::solutions() const
{
return _solutions;
}
/**
* Add a solution to this problem. This class takes over ownership of
* the problem and will delete it when neccessary.
**/
void
ResolverProblem::addSolution( ProblemSolution_Ptr solution,
bool inFront )
{
if (inFront) {
_solutions.push_front (solution);
} else {
_solutions.push_back (solution);
}
}
void
ResolverProblem::clear()
{
_solutions.clear();
}
///////////////////////////////////////////////////////////////////////
};// namespace zypp
/////////////////////////////////////////////////////////////////////////