'\" t
-.\" Title: libsolv-bindings
+.\" Title: Libsolv-Bindings
.\" Author: [see the "Author" section]
-.\" Generator: DocBook XSL Stylesheets v1.76.1 <http://docbook.sf.net/>
-.\" Date: 06/04/2013
+.\" Generator: DocBook XSL Stylesheets v1.78.0 <http://docbook.sf.net/>
+.\" Date: 12/14/2015
.\" Manual: LIBSOLV
.\" Source: libsolv
.\" Language: English
.\"
-.TH "LIBSOLV\-BINDINGS" "3" "06/04/2013" "libsolv" "LIBSOLV"
+.TH "LIBSOLV\-BINDINGS" "3" "12/14/2015" "libsolv" "LIBSOLV"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
libsolv-bindings \- access libsolv from perl/python/ruby
.SH "DESCRIPTION"
.sp
-bla bla bla
-.SH "THE POOL"
+Libsolv\(cqs language bindings offer an abstract, object orientated interface to the library\&. The supported languages are currently perl, python, and ruby\&. All example code (except in the specifics sections, of course) lists first the \(lqC\-ish\(rq interface, then the syntax for perl, python, and ruby (in that order)\&.
+.SH "PERL SPECIFICS"
+.sp
+Libsolv\(cqs perl bindings can be loaded with the following statement:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBuse solv\fR;
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Objects are either created by calling the new() method on a class or they are returned by calling methods on other objects\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+my \fI$pool\fR \fB= solv::Pool\->new()\fR;
+my \fI$repo\fR \fB=\fR \fI$pool\fR\fB\->add_repo("my_first_repo")\fR;
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Swig encapsulates all objects as tied hashes, thus the attributes can be accessed by treating the object as standard hash reference:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fI$pool\fR\fB\->{appdata} = 42\fR;
+\fBprintf "appdata is %d\en",\fR \fI$pool\fR\fB\->{appdata}\fR;
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+A special exception to this are iterator objects, they are encapsulated as tied arrays so that it is possible to iterate with a for() statement:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+my \fI$iter\fR \fB=\fR \fI$pool\fR\fB\->solvables_iter()\fR;
+\fBfor my\fR \fI$solvable\fR \fB(\fR\fI@$iter\fR\fB) { \&.\&.\&. }\fR;
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+As a downside of this approach, iterator objects cannot have attributes\&.
+.sp
+If an array needs to be passed to a method it is usually done by reference, if a method returns an array it returns it on the stack:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+my \fI@problems\fR \fB=\fR \fI$solver\fR\fB\->solve(\e\fR\fI@jobs\fR\fB)\fR;
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Due to a bug in swig, stringification does not work for libsolv\(cqs objects\&. Instead, you have to call the object\(cqs str() method\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBprint\fR \fI$dep\fR\fB\->str() \&. "\e\fR\fIn\fR\fB"\fR;
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Swig implements all constants as numeric variables (instead of the more natural constant subs), so don\(cqt forget the leading \(lq$\(rq when accessing a constant\&. Also do not forget to prepend the namespace of the constant:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fI$pool\fR\fB\->set_flag($solv::Pool::POOL_FLAG_OBSOLETEUSESCOLORS, 1)\fR;
+.fi
+.if n \{\
+.RE
+.\}
+.SH "PYTHON SPECIFICS"
+.sp
+The python bindings can be loaded with:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBimport solv\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Objects are either created by calling the constructor method for a class or they are returned by calling methods on other objects\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fIpool\fR \fB= solv\&.Pool()\fR
+\fIrepo\fR \fB=\fR \fIpool\fR\fB\&.add_repo("my_first_repo")\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Attributes can be accessed as usual:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fIpool\fR\fB\&.appdata = 42\fR
+\fBprint "appdata is %d" % (\fR\fIpool\fR\fB\&.appdata)\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Iterators also work as expected:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBfor\fR \fIsolvable\fR \fBin\fR \fIpool\fR\fB\&.solvables_iter():\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Arrays are passed and returned as list objects:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fIjobs\fR \fB= []\fR
+\fIproblems\fR \fB=\fR \fIsolver\fR\fB\&.solve(\fR\fIjobs\fR\fB)\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+The bindings define stringification for many classes, some also have a \fIrepr\fR method to ease debugging\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBprint\fR \fIdep\fR
+\fBprint repr(\fR\fIrepo\fR\fB)\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Constants are attributes of the classes:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fIpool\fR\fB\&.set_flag(solv\&.Pool\&.POOL_FLAG_OBSOLETEUSESCOLORS, 1)\fR;
+.fi
+.if n \{\
+.RE
+.\}
+.SH "RUBY SPECIFICS"
+.sp
+The ruby bindings can be loaded with:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBrequire \*(Aqsolv\*(Aq\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Objects are either created by calling the new method on a class or they are returned by calling methods on other objects\&. Note that all classes start with an uppercase letter in ruby, so the class is called \(lqSolv\(rq\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fIpool\fR \fB= Solv::Pool\&.new\fR
+\fIrepo\fR \fB=\fR \fIpool\fR\fB\&.add_repo("my_first_repo")\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Attributes can be accessed as usual:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fIpool\fR\fB\&.appdata = 42\fR
+\fBputs "appdata is #{\fR\fIpool\fR\fB\&.appdata}"\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Iterators also work as expected:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBfor\fR \fIsolvable\fR \fBin\fR \fIpool\fR\fB\&.solvables_iter() do \&.\&.\&.\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Arrays are passed and returned as array objects:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fIjobs\fR \fB= []\fR
+\fIproblems\fR \fB=\fR \fIsolver\fR\fB\&.solve(\fR\fIjobs\fR\fB)\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Most classes define a to_s method, so objects can be easily stringified\&. Many also define an inspect() method\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBputs\fR \fIdep\fR
+\fBputs\fR \fIrepo\fR\fB\&.inspect\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Constants live in the namespace of the class they belong to:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fIpool\fR\fB\&.set_flag(Solv::Pool::POOL_FLAG_OBSOLETEUSESCOLORS, 1)\fR;
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Note that boolean methods have an added trailing \(lq?\(rq, to be consistent with other ruby modules:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBputs "empty" if\fR \fIrepo\fR\fB\&.isempty?\fR
+.fi
+.if n \{\
+.RE
+.\}
+.SH "TCL SPECIFICS"
+.sp
+Libsolv\(cqs tcl bindings can be loaded with the following statement:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBpackage require solv\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Objects are either created by calling class name prefixed with \(lqnew_\(rq, or they are returned by calling methods on other objects\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBset pool [solv::new_Pool]\fR
+\fBset repo [\fR\fI$pool\fR \fBadd_repo "my_first_repo"]\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Swig provides a \(lqcget\(rq method to read object attributes, and a \(lqconfigure\(rq method to write them:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fI$pool\fR \fBconfigure \-appdata 42\fR
+\fBputs "appdata is [\fR\fI$pool\fR \fBcget \-appdata]"\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+The tcl bindings provide a little helper to work with iterators in a foreach style:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBset iter [\fR\fI$pool\fR \fBsolvables_iter]\fR
+\fBsolv::iter s\fR \fI$iter\fR \fB{ \&.\&.\&. }\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+libsolv\(cqs arrays are mapped to tcl\(cqs lists:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBset jobs [list\fR \fI$job1 $job2\fR\fB]\fR
+\fBset problems [\fR\fI$solver\fR \fBsolve\fR \fI$jobs\fR\fB]\fR
+\fBputs "We have [llength\fR \fI$problems\fR\fB] problems\&.\&.\&."\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Stringification is done by calling the object\(cqs \(lqstr\(rq method\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBputs [\fR\fI$dep\fR \fBstr]\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+There is one exception: you have to use \(lqstringify\(rq for Datamatch objects, as swig reports a clash with the \(lqstr\(rq attribute\&. Some objects also support a \(lq==\(rq method for equality tests, and a \(lq!=\(rq method\&.
+.sp
+Swig implements all constants as numeric variables, constants belonging to a libsolv class are prefixed with the class name:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fI$pool\fR \fBset_flag\fR \fI$solv::Pool_POOL_FLAG_OBSOLETEUSESCOLORS\fR \fB1\fR
+\fBputs [\fR\fI$solvable\fR \fBlookup_str\fR \fI$solv::SOLVABLE_SUMMARY\fR\fB]\fR
+.fi
+.if n \{\
+.RE
+.\}
+.SH "THE SOLV CLASS"
+.sp
+This is the main namespace of the library, you cannot create objects of this type but it contains some useful constants\&.
+.SS "CONSTANTS"
+.sp
+Relational flag constants, the first three can be or\-ed together
+.PP
+\fBREL_LT\fR
+.RS 4
+the \(lqless than\(rq bit
+.RE
+.PP
+\fBREL_EQ\fR
+.RS 4
+the \(lqequals to\(rq bit
+.RE
+.PP
+\fBREL_GT\fR
+.RS 4
+the \(lqgreater than\(rq bit
+.RE
+.PP
+\fBREL_ARCH\fR
+.RS 4
+used for relations that describe an extra architecture filter, the version part of the relation is interpreted as architecture\&.
+.RE
+.sp
+Special Solvable Ids
+.PP
+\fBSOLVID_META\fR
+.RS 4
+Access the meta section of a repository or repodata area\&. This is like an extra Solvable that has the Id SOLVID_META\&.
+.RE
+.PP
+\fBSOLVID_POS\fR
+.RS 4
+Use the data position stored inside of the pool instead of accessing some solvable by Id\&. The bindings have the Datapos objects as an abstraction mechanism, so you do not need this constant\&.
+.RE
+.sp
+Constant string Ids
+.PP
+\fBID_NULL\fR
+.RS 4
+Always zero
+.RE
+.PP
+\fBID_EMPTY\fR
+.RS 4
+Always one, describes the empty string
+.RE
+.PP
+\fBSOLVABLE_NAME\fR
+.RS 4
+The keyname Id of the name of the solvable\&.
+.RE
+.PP
+\fB\&...\fR
+.RS 4
+see the libsolv\-constantids manpage for a list of fixed Ids\&.
+.RE
+.SH "THE POOL CLASS"
.sp
The pool is libsolv\(cqs central resource manager\&. A pool consists of Solvables, Repositories, Dependencies, each indexed by Ids\&.
.SS "CLASS METHODS"
.RE
.\}
.sp
-Create a new pool instance\&. In most cases you just need one pool\&.
+Create a new pool instance\&. In most cases you just need one pool\&. Note that the returned object "owns" the pool, i\&.e\&. if the object is freed, the pool is also freed\&. You can use the disown method to break this ownership relation\&.
.SS "ATTRIBUTES"
.sp
.if n \{\
.\}
.nf
\fBvoid *appdata;\fR /* read/write */
-\fI$pool\fR\fB\->{\*(Aqappdata\*(Aq}\fR
+\fI$pool\fR\fB\->{appdata}\fR
\fIpool\fR\fB\&.appdata\fR
\fIpool\fR\fB\&.appdata\fR
.fi
.\}
.nf
\fBSolvable solvables[];\fR /* read only */
-my \fI$solvable\fR \fB=\fR \fI$pool\fR\fB\->{\*(Aqsolvables\*(Aq}\->[\fR\fI$solvid\fR\fB]\fR;
+my \fI$solvable\fR \fB=\fR \fI$pool\fR\fB\->{solvables}\->[\fR\fI$solvid\fR\fB]\fR;
\fIsolvable\fR \fB=\fR \fIpool\fR\fB\&.solvables[\fR\fIsolvid\fR\fB]\fR
\fIsolvable\fR \fB=\fR \fIpool\fR\fB\&.solvables[\fR\fIsolvid\fR\fB]\fR
.fi
.\}
.nf
\fBRepo repos[];\fR /* read only */
-my \fI$repo\fR \fB=\fR \fI$pool\fR\fB\->{\*(Aqrepos\*(Aq}\->[\fR\fI$repoid\fR\fB]\fR;
+my \fI$repo\fR \fB=\fR \fI$pool\fR\fB\->{repos}\->[\fR\fI$repoid\fR\fB]\fR;
\fIrepo\fR \fB=\fR \fIpool\fR\fB\&.repos[\fR\fIrepoid\fR\fB]\fR
\fIrepo\fR \fB=\fR \fIpool\fR\fB\&.repos[\fR\fIrepoid\fR\fB]\fR
.fi
.RE
.\}
.sp
-Look up a Repository by its id\&.
+Look up a Repository by its id\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBRepo *installed;\fR /* read/write */
+\fI$pool\fR\fB\->{installed} =\fR \fI$repo\fR;
+\fIpool\fR\fB\&.installed =\fR \fIrepo\fR
+\fIpool\fR\fB\&.installed =\fR \fIrepo\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Define which repository contains all the installed packages\&.
.sp
.if n \{\
.RS 4
.\}
.nf
-\fBRepo *installed;\fR /* read/write */
-\fI$pool\fR\fB\->{\*(Aqinstalled\*(Aq} =\fR \fI$repo\fR;
-\fIpool\fR\fB\&.installed =\fR \fIrepo\fR
-\fIpool\fR\fB\&.installed =\fR \fIrepo\fR
+\fBconst char *errstr;\fR /* read only */
+my \fI$err\fR \fB=\fR \fI$pool\fR\fB\->{errstr}\fR;
+\fIerr\fR \fB=\fR \fIpool\fR\fB\&.errstr\fR
+\fIerr\fR \fB=\fR \fIpool\fR\fB\&.errstr\fR
.fi
.if n \{\
.RE
.\}
.sp
-Define which repository contains all the installed packages\&.
+Return the last error string that was stored in the pool\&.
.SS "CONSTANTS"
.PP
\fBPOOL_FLAG_PROMOTEEPOCH\fR
.PP
\fBPOOL_FLAG_FORBIDSELFCONFLICTS\fR
.RS 4
-Disallow the installation of packages that conflict with themselfs\&. Debian always allowd self\-conflicting packages, rpm used to forbid them but switched to also allowing them recently\&.
+Disallow the installation of packages that conflict with themselves\&. Debian always allows self\-conflicting packages, rpm used to forbid them but switched to also allowing them recently\&.
.RE
.PP
\fBPOOL_FLAG_OBSOLETEUSESPROVIDES\fR
.PP
\fBPOOL_FLAG_OBSOLETEUSESCOLORS\fR
.RS 4
-Rpm\(cqs multilib implementation (used in RedHat and Fedora) distinguishes between 32bit and 64bit packages (the terminology is that they have a different color)\&. If obsolteusescolors is set, packages with different colors will not obsolete each other\&.
+Rpm\(cqs multilib implementation (used in RedHat and Fedora) distinguishes between 32bit and 64bit packages (the terminology is that they have a different color)\&. If obsoleteusescolors is set, packages with different colors will not obsolete each other\&.
.RE
.PP
\fBPOOL_FLAG_IMPLICITOBSOLETEUSESCOLORS\fR
.PP
\fBPOOL_FLAG_NOINSTALLEDOBSOLETES\fR
.RS 4
-New versions of rpm consider the obsoletes of installed packages when checking for dependency, thus you may not install a package that is obsoleted by some other installed package, unless you also deinstall the other package\&.
+New versions of rpm consider the obsoletes of installed packages when checking for dependency, thus you may not install a package that is obsoleted by some other installed package, unless you also erase the other package\&.
.RE
.PP
\fBPOOL_FLAG_HAVEDISTEPOCH\fR
.PP
\fBPOOL_FLAG_ADDFILEPROVIDESFILTERED\fR
.RS 4
-Make the addfileprovides method only add files from the standard locations (i\&.e\&. the \(lqbin\(rq and \(lqetc\(rq directories)\&. This is useful if you have only few packages that use non\-standard file dependencies, but you still wand the fast speed that addfileprovides() generates\&.
+Make the addfileprovides method only add files from the standard locations (i\&.e\&. the \(lqbin\(rq and \(lqetc\(rq directories)\&. This is useful if you have only few packages that use non\-standard file dependencies, but you still want the fast speed that addfileprovides() generates\&.
.RE
.SS "METHODS"
.sp
.RE
.\}
.sp
-Free a pool\&. This is currently done with a method instead of relying on reference counting or garbage collection because it\(cqs hard to track every reference to a pool\&.
+Force a free of the pool\&. After this call, you must not access any object that still references the pool\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBvoid disown()\fR
+\fI$pool\fR\fB\->disown()\fR;
+\fIpool\fR\fB\&.disown()\fR
+\fIpool\fR\fB\&.disown()\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Break the ownership relation between the binding object and the pool\&. After this call, the pool will not get freed even if the object goes out of scope\&. This also means that you must manually call the free method to free the pool data\&.
.sp
.if n \{\
.RS 4
.RS 4
.\}
.nf
-\fBRepo *add_repo(const char *\fR\fIname\fR\fB)\fR
+\fBRepo add_repo(const char *\fR\fIname\fR\fB)\fR
\fI$repo\fR \fB=\fR \fI$pool\fR\fB\->add_repo(\fR\fI$name\fR\fB)\fR;
\fIrepo\fR \fB=\fR \fIpool\fR\fB\&.add_repo(\fR\fIname\fR\fB)\fR
\fIrepo\fR \fB=\fR \fIpool\fR\fB\&.add_repo(\fR\fIname\fR\fB)\fR
.RE
.\}
.sp
-Add a Repository with the specified name to the pool\&. The reposiory is empty on creation, use the repository methods to populate it with packages\&.
+Add a Repository with the specified name to the pool\&. The repository is empty on creation, use the repository methods to populate it with packages\&.
.sp
.if n \{\
.RS 4
.\}
.nf
-\fBRepoiterator *repos_iter()\fR
+\fBRepoiterator repos_iter()\fR
\fBfor my\fR \fI$repo\fR \fB(\fR\fI@\fR\fB{\fR\fI$pool\fR\fB\->repos_iter()})\fR
\fBfor\fR \fIrepo\fR \fBin\fR \fIpool\fR\fB\&.repos_iter():\fR
\fBfor\fR \fIrepo\fR \fBin\fR \fIpool\fR\fB\&.repos_iter()\fR
.RS 4
.\}
.nf
-\fBSolvableiterator *solvables_iter()\fR
+\fBSolvableiterator solvables_iter()\fR
\fBfor my\fR \fI$solvable\fR \fB(\fR\fI@\fR\fB{\fR\fI$pool\fR\fB\->solvables_iter()})\fR
\fBfor\fR \fIsolvable\fR \fBin\fR \fIpool\fR\fB\&.solvables_iter():\fR
\fBfor\fR \fIsolvable\fR \fBin\fR \fIpool\fR\fB\&.solvables_iter()\fR
.RS 4
.\}
.nf
-\fBDep *Dep(const char *\fR\fIstr\fR\fB, bool\fR \fIcreate\fR\fB=1)\fR
+\fBDep Dep(const char *\fR\fIstr\fR\fB, bool\fR \fIcreate\fR \fB= 1)\fR
my \fI$dep\fR \fB=\fR \fI$pool\fR\fB\->Dep(\fR\fI$string\fR\fB)\fR;
\fIdep\fR \fB=\fR \fIpool\fR\fB\&.Dep(\fR\fIstring\fR\fB)\fR
\fIdep\fR \fB=\fR \fIpool\fR\fB\&.Dep(\fR\fIstring\fR\fB)\fR
.RS 4
.\}
.nf
-\fBQueue addfileprovides_queue()\fR
+\fBId *addfileprovides_queue()\fR
my \fI@ids\fR \fB=\fR \fI$pool\fR\fB\->addfileprovides_queue()\fR;
\fIids\fR \fB=\fR \fIpool\fR\fB\&.addfileprovides_queue()\fR
\fIids\fR \fB=\fR \fIpool\fR\fB\&.addfileprovides_queue()\fR
.RE
.\}
.sp
-Some package managers like rpm allow dependencies on files contained in other packages\&. To allow libsolv to deal with those dependencies in an efficient way, you need to call the addfileprovides method after creating and reading all repositories\&. This method will scan all dependency for file names and than scan all packages for matching files\&. If a filename has been matched, it will be added to the provides list of the corresponding package\&. The addfileprovides_queue variant works the same way but returns an array containing all file dependencies\&. This information can be stored with the repository to speed up the next usage of the repository\&.
+Some package managers like rpm allow dependencies on files contained in other packages\&. To allow libsolv to deal with those dependencies in an efficient way, you need to call the addfileprovides method after creating and reading all repositories\&. This method will scan all dependency for file names and then scan all packages for matching files\&. If a filename has been matched, it will be added to the provides list of the corresponding package\&. The addfileprovides_queue variant works the same way but returns an array containing all file dependencies\&. This information can be stored in the meta section of the repositories to speed up the next time the repository is loaded and addfileprovides is called\&.
.sp
.if n \{\
.RS 4
.RE
.\}
.sp
-Create the internal \(lqwhatprovides\(rq hash over all of the provides of all packages\&. This method must be called before doing any lookups on provides\&. It\(cqs encuraged to do it right after all repos are set up, usually right after the call to addfileprovides()\&.
+Create the internal \(lqwhatprovides\(rq hash over all of the provides of all packages\&. This method must be called before doing any lookups on provides\&. It\(cqs encouraged to do it right after all repos are set up, usually right after the call to addfileprovides()\&.
.sp
.if n \{\
.RS 4
.\}
.nf
-\fBQueue whatprovides(DepId\fR \fIdep\fR\fB)\fR
+\fBSolvable *whatprovides(DepId\fR \fIdep\fR\fB)\fR
my \fI@solvables\fR \fB=\fR \fI$pool\fR\fB\->whatprovides(\fR\fI$dep\fR\fB)\fR;
\fIsolvables\fR \fB=\fR \fIpool\fR\fB\&.whatprovides(\fR\fIdep\fR\fB)\fR
\fIsolvables\fR \fB=\fR \fIpool\fR\fB\&.whatprovides(\fR\fIdep\fR\fB)\fR
.RE
.\}
.sp
-Return all solvables that provide the specified dependency\&. You can use either a Dep object or an simple Id as argument\&.
+Return all solvables that provide the specified dependency\&. You can use either a Dep object or a simple Id as argument\&.
.sp
.if n \{\
.RS 4
.\}
.nf
-\fBQueue matchprovidingids(const char *\fR\fImatch\fR\fB, int\fR \fIflags\fR\fB)\fR
+\fBId *matchprovidingids(const char *\fR\fImatch\fR\fB, int\fR \fIflags\fR\fB)\fR
my \fI@ids\fR \fB=\fR \fI$pool\fR\fB\->matchprovidingids(\fR\fI$match\fR\fB,\fR \fI$flags\fR\fB)\fR;
\fIids\fR \fB=\fR \fIpool\fR\fB\&.matchprovidingids(\fR\fImatch\fR\fB,\fR \fIflags\fR\fB)\fR
\fIids\fR \fB=\fR \fIpool\fR\fB\&.matchprovidingids(\fR\fImatch\fR\fB,\fR \fIflags\fR\fB)\fR
.RS 4
.\}
.nf
-\fBId towhatprovides(Queue\fR \fIids\fR\fB)\fR
+\fBId towhatprovides(Id *\fR\fIids\fR\fB)\fR
my \fI$offset\fR \fB=\fR \fI$pool\fR\fB\->towhatprovides(\e\fR\fI@ids\fR\fB)\fR;
\fIoffset\fR \fB=\fR \fIpool\fR\fB\&.towhatprovides(\fR\fIids\fR\fB)\fR
\fIoffset\fR \fB=\fR \fIpool\fR\fB\&.towhatprovides(\fR\fIids\fR\fB)\fR
.RE
.\}
.sp
-Return true if the specified Id describs a known architecture\&.
+Return true if the specified Id describes a known architecture\&.
.sp
.if n \{\
.RS 4
.\}
.nf
-\fBSolver *Solver()\fR
+\fBSolver Solver()\fR
my \fI$solver\fR \fB=\fR \fI$pool\fR\fB\->Solver()\fR;
\fIsolver\fR \fB=\fR \fIpool\fR\fB\&.Solver()\fR
\fIsolver\fR \fB=\fR \fIpool\fR\fB\&.Solver()\fR
.RS 4
.\}
.nf
-\fBSolver *Job(int\fR \fIhow\fR\fB, Id\fR \fIwhat\fR\fB)\fR
+\fBJob Job(int\fR \fIhow\fR\fB, Id\fR \fIwhat\fR\fB)\fR
my \fI$job\fR \fB=\fR \fI$pool\fR\fB\->Job(\fR\fI$how\fR\fB,\fR \fI$what\fR\fB)\fR;
\fIjob\fR \fB=\fR \fIpool\fR\fB\&.Job(\fR\fIhow\fR\fB,\fR \fIwhat\fR\fB)\fR
\fIjob\fR \fB=\fR \fIpool\fR\fB\&.Job(\fR\fIhow\fR\fB,\fR \fIwhat\fR\fB)\fR
.RS 4
.\}
.nf
-\fBSelection *Selection()\fR
+\fBSelection Selection()\fR
my \fI$sel\fR \fB=\fR \fI$pool\fR\fB\->Selection()\fR;
\fIsel\fR \fB=\fR \fIpool\fR\fB\&.Selection()\fR
\fIsel\fR \fB=\fR \fIpool\fR\fB\&.Selection()\fR
.RS 4
.\}
.nf
-\fBSelection *Selection_all()\fR
+\fBSelection Selection_all()\fR
my \fI$sel\fR \fB=\fR \fI$pool\fR\fB\->Selection_all()\fR;
\fIsel\fR \fB=\fR \fIpool\fR\fB\&.Selection_all()\fR
\fIsel\fR \fB=\fR \fIpool\fR\fB\&.Selection_all()\fR
.RS 4
.\}
.nf
-\fBSelection *select(const char *\fR\fIname\fR\fB, int\fR \fIflags\fR\fB)\fR
+\fBSelection select(const char *\fR\fIname\fR\fB, int\fR \fIflags\fR\fB)\fR
my \fI$sel\fR \fB=\fR \fI$pool\fR\fB\->select(\fR\fI$name\fR\fB,\fR \fI$flags\fR\fB)\fR;
\fIsel\fR \fB=\fR \fIpool\fR\fB\&.select(\fR\fIname\fR\fB,\fR \fIflags\fR\fB)\fR
\fIsel\fR \fB=\fR \fIpool\fR\fB\&.select(\fR\fIname\fR\fB,\fR \fIflags\fR\fB)\fR
.RS 4
.\}
.nf
-\fBJobs *getpooljobs()\fR
+\fBJob *getpooljobs()\fR
\fI@jobs\fR \fB=\fR \fI$pool\fR\fB\->getpooljobs()\fR;
\fIjobs\fR \fB=\fR \fIpool\fR\fB\&.getpooljobs()\fR
\fIjobs\fR \fB=\fR \fIpool\fR\fB\&.getpooljobs()\fR
.RE
.\}
.sp
-Set the callback function called when repository metadata needs to be loaded on demand\&. To make use of this feature, you need to create repodata stubs that tell the library which data is available but not loaded\&. If later on the data needs to be accessed, the callback function is called with a repodata argument\&. You can then load the data (maybe fetching it first from an remote server)\&. The callback should return true if the data has been made available\&.
+Set the callback function called when repository metadata needs to be loaded on demand\&. To make use of this feature, you need to create repodata stubs that tell the library which data is available but not loaded\&. If later on the data needs to be accessed, the callback function is called with a repodata argument\&. You can then load the data (maybe fetching it first from a remote server)\&. The callback should return true if the data has been made available\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+/* bindings only */
+\fI$pool\fR\fB\->appdata_disown()\fR
+\fIpool\fR\fB\&.appdata_disown()\fR
+\fIpool\fR\fB\&.appdata_disown()\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Decrement the reference count of the appdata object\&. This can be used to break circular references (e\&.g\&. if the pool\(cqs appdata value points to some meta data structure that contains a pool handle)\&. If used incorrectly, this method can lead to application crashes, so beware\&. (This method is a no\-op for ruby and tcl\&.)
.SS "DATA RETRIEVAL METHODS"
.sp
-In the following functions, the \fIkeyname\fR argument describes what to retrive\&. For the standard cases you can use the available Id constants\&. For example,
+In the following functions, the \fIkeyname\fR argument describes what to retrieve\&. For the standard cases you can use the available Id constants\&. For example,
.sp
.if n \{\
.RS 4
.RS 4
.\}
.nf
-\fBQueue lookup_idarray(Id\fR \fIsolvid\fR\fB, Id\fR \fIkeyname\fR\fB)\fR
+\fBId *lookup_idarray(Id\fR \fIsolvid\fR\fB, Id\fR \fIkeyname\fR\fB)\fR
my \fI@ids\fR \fB=\fR \fI$pool\fR\fB\->lookup_idarray(\fR\fI$solvid\fR\fB,\fR \fI$keyname\fR\fB)\fR;
\fIids\fR \fB=\fR \fIpool\fR\fB\&.lookup_idarray(\fR\fIsolvid\fR\fB,\fR \fIkeyname\fR\fB)\fR
\fIids\fR \fB=\fR \fIpool\fR\fB\&.lookup_idarray(\fR\fIsolvid\fR\fB,\fR \fIkeyname\fR\fB)\fR
.RS 4
.\}
.nf
-\fBChksum *lookup_checksum(Id\fR \fIsolvid\fR\fB, Id\fR \fIkeyname\fR\fB)\fR
+\fBChksum lookup_checksum(Id\fR \fIsolvid\fR\fB, Id\fR \fIkeyname\fR\fB)\fR
my \fI$chksum\fR \fB=\fR \fI$pool\fR\fB\->lookup_checksum(\fR\fI$solvid\fR\fB,\fR \fI$keyname\fR\fB)\fR;
\fIchksum\fR \fB=\fR \fIpool\fR\fB\&.lookup_checksum(\fR\fIsolvid\fR\fB,\fR \fIkeyname\fR\fB)\fR
\fIchksum\fR \fB=\fR \fIpool\fR\fB\&.lookup_checksum(\fR\fIsolvid\fR\fB,\fR \fIkeyname\fR\fB)\fR
.RS 4
.\}
.nf
-\fBDataiterator *Dataiterator(Id\fR \fIsolvid\fR\fB, Id\fR \fIkeyname\fR\fB, const char *\fR\fImatch\fR\fB, int\fR \fIflags\fR\fB)\fR
+\fBDataiterator Dataiterator(Id\fR \fIkeyname\fR\fB, const char *\fR\fImatch\fR \fB= 0, int\fR \fIflags\fR \fB= 0)\fR
+my \fI$di\fR \fB=\fR \fI$pool\fR\fB\->Dataiterator(\fR\fI$keyname\fR\fB,\fR \fI$match\fR\fB,\fR \fI$flags\fR\fB)\fR;
+\fIdi\fR \fB=\fR \fIpool\fR\fB\&.Dataiterator(\fR\fIkeyname\fR\fB,\fR \fImatch\fR\fB,\fR \fIflags\fR\fB)\fR
+\fIdi\fR \fB=\fR \fIpool\fR\fB\&.Dataiterator(\fR\fIkeyname\fR\fB,\fR \fImatch\fR\fB,\fR \fIflags\fR\fB)\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBDataiterator Dataiterator_solvid(Id\fR \fIsolvid\fR\fB, Id\fR \fIkeyname\fR\fB, const char *\fR\fImatch\fR \fB= 0, int\fR \fIflags\fR \fB= 0)\fR
my \fI$di\fR \fB=\fR \fI$pool\fR\fB\->Dataiterator(\fR\fI$solvid\fR\fB,\fR \fI$keyname\fR\fB,\fR \fI$match\fR\fB,\fR \fI$flags\fR\fB)\fR;
\fIdi\fR \fB=\fR \fIpool\fR\fB\&.Dataiterator(\fR\fIsolvid\fR\fB,\fR \fIkeyname\fR\fB,\fR \fImatch\fR\fB,\fR \fIflags\fR\fB)\fR
\fIdi\fR \fB=\fR \fIpool\fR\fB\&.Dataiterator(\fR\fIsolvid\fR\fB,\fR \fIkeyname\fR\fB,\fR \fImatch\fR\fB,\fR \fIflags\fR\fB)\fR
.RE
.\}
.sp
-Iterate over the matching data elements\&. See the Dataiterator class for more information\&.
+Iterate over the matching data elements\&. See the Dataiterator class for more information\&. The Dataiterator method iterates over all solvables in the pool, whereas the Dataiterator_solvid only iterates over the specified solvable\&.
.SS "ID METHODS"
.sp
The following methods deal with Ids, i\&.e\&. integers representing objects in the pool\&. They are considered \(lqlow level\(rq, in most cases you would not use them but instead the object orientated methods\&.
.RS 4
.\}
.nf
-\fBRepo *id2repo(Id\fR \fIid\fR\fB)\fR
+\fBRepo id2repo(Id\fR \fIid\fR\fB)\fR
\fI$repo\fR \fB=\fR \fI$pool\fR\fB\->id2repo(\fR\fI$id\fR\fB)\fR;
\fIrepo\fR \fB=\fR \fIpool\fR\fB\&.id2repo(\fR\fIid\fR\fB)\fR
\fIrepo\fR \fB=\fR \fIpool\fR\fB\&.id2repo(\fR\fIid\fR\fB)\fR
.RS 4
.\}
.nf
-\fBSolvable *id2solvable(Id\fR \fIid\fR\fB)\fR
+\fBSolvable id2solvable(Id\fR \fIid\fR\fB)\fR
\fI$solvable\fR \fB=\fR \fI$pool\fR\fB\->id2solvable(\fR\fI$id\fR\fB)\fR;
\fIsolvable\fR \fB=\fR \fIpool\fR\fB\&.id2solvable(\fR\fIid\fR\fB)\fR
\fIsolvable\fR \fB=\fR \fIpool\fR\fB\&.id2solvable(\fR\fIid\fR\fB)\fR
.RS 4
.\}
.nf
-\fBId str2id(const char *\fR\fIstr\fR\fB, bool\fR \fIcreate\fR\fB=1)\fR
+\fBId str2id(const char *\fR\fIstr\fR\fB, bool\fR \fIcreate\fR \fB= 1)\fR
my \fI$id\fR \fB=\fR \fIpool\fR\fB\->str2id(\fR\fI$string\fR\fB)\fR;
\fIid\fR \fB=\fR \fIpool\fR\fB\&.str2id(\fR\fIstring\fR\fB)\fR
\fIid\fR \fB=\fR \fIpool\fR\fB\&.str2id(\fR\fIstring\fR\fB)\fR
.RS 4
.\}
.nf
-\fBId rel2id(Id\fR \fIname\fR\fB, Id\fR \fIevr\fR\fB, int\fR \fIflags\fR\fB, bool\fR \fIcreate\fR\fB=1)\fR
+\fBId rel2id(Id\fR \fIname\fR\fB, Id\fR \fIevr\fR\fB, int\fR \fIflags\fR\fB, bool\fR \fIcreate\fR \fB= 1)\fR
my \fI$id\fR \fB=\fR \fIpool\fR\fB\->rel2id(\fR\fI$nameid\fR\fB,\fR \fI$evrid\fR\fB,\fR \fI$flags\fR\fB)\fR;
\fIid\fR \fB=\fR \fIpool\fR\fB\&.rel2id(\fR\fInameid\fR\fB,\fR \fIevrid\fR\fB,\fR \fIflags\fR\fB)\fR
\fIid\fR \fB=\fR \fIpool\fR\fB\&.rel2id(\fR\fInameid\fR\fB,\fR \fIevrid\fR\fB,\fR \fIflags\fR\fB)\fR
.RS 4
.\}
.nf
-\fBId id2langid(Id\fR \fIid\fR\fB, const char *\fR\fIlang\fR\fB, bool\fR \fIcreate\fR\fB=1)\fR
+\fBId id2langid(Id\fR \fIid\fR\fB, const char *\fR\fIlang\fR\fB, bool\fR \fIcreate\fR \fB= 1)\fR
my \fI$id\fR \fB=\fR \fI$pool\fR\fB\->id2langid(\fR\fI$id\fR\fB,\fR \fI$language\fR\fB)\fR;
\fIid\fR \fB=\fR \fIpool\fR\fB\&.id2langid(\fR\fIid\fR\fB,\fR \fIlanguage\fR\fB)\fR
\fIid\fR \fB=\fR \fIpool\fR\fB\&.id2langid(\fR\fIid\fR\fB,\fR \fIlanguage\fR\fB)\fR
.\}
.nf
\fBPool *pool;\fR /* read only */
-\fI$dep\fR\fB\->{\*(Aqpool\*(Aq}\fR
+\fI$dep\fR\fB\->{pool}\fR
\fIdep\fR\fB\&.pool\fR
\fIdep\fR\fB\&.pool\fR
.fi
.\}
.nf
\fBId id;\fR /* read only */
-\fI$dep\fR\fB\->{\*(Aqid\*(Aq}\fR
+\fI$dep\fR\fB\->{id}\fR
\fIdep\fR\fB\&.id\fR
\fIdep\fR\fB\&.id\fR
.fi
.RS 4
.\}
.nf
-\fBDep *Rel(int\fR \fIflags\fR\fB, DepId\fR \fIevrid\fR\fB, bool\fR \fIcreate\fR\fB=1)\fR
+\fBDep Rel(int\fR \fIflags\fR\fB, DepId\fR \fIevrid\fR\fB, bool\fR \fIcreate\fR \fB= 1)\fR
my \fI$reldep\fR \fB=\fR \fI$dep\fR\fB\->Rel(\fR\fI$flags\fR\fB,\fR \fI$evrdep\fR\fB)\fR;
\fIreldep\fR \fB=\fR \fIdep\fR\fB\&.Rel(\fR\fIflags\fR\fB,\fR \fIevrdep\fR\fB)\fR
\fIreldep\fR \fB=\fR \fIdep\fR\fB\&.Rel(\fR\fIflags\fR\fB,\fR \fIevrdep\fR\fB)\fR
.RS 4
.\}
.nf
-\fBSelection *Selection_name(int\fR \fIsetflags\fR \fB= 0)\fR
+\fBSelection Selection_name(int\fR \fIsetflags\fR \fB= 0)\fR
my \fI$sel\fR \fB=\fR \fI$dep\fR\fB\->Selection_name()\fR;
\fIsel\fR \fB=\fR \fIdep\fR\fB\&.Selection_name()\fR
\fIsel\fR \fB=\fR \fIdep\fR\fB\&.Selection_name()\fR
.RS 4
.\}
.nf
-\fBSelection *Selection_provides(int\fR \fIsetflags\fR \fB= 0)\fR
+\fBSelection Selection_provides(int\fR \fIsetflags\fR \fB= 0)\fR
my \fI$sel\fR \fB=\fR \fI$dep\fR\fB\->Selection_provides()\fR;
\fIsel\fR \fB=\fR \fIdep\fR\fB\&.Selection_provides()\fR
\fIsel\fR \fB=\fR \fIdep\fR\fB\&.Selection_provides()\fR
.\}
.nf
\fB<stringification>\fR
-my \fI$str\fR \fB= "\fR\fI$dep\fR\fB"\fR;
+my \fI$str\fR \fB=\fR \fI$dep\fR\fB\->str\fR;
\fIstr\fR \fB= str(\fR\fIdep\fR\fB)\fR
\fIstr\fR \fB=\fR \fIdep\fR\fB\&.to_s\fR
.fi
The dependencies are equal if they are part of the same pool and have the same ids\&.
.SH "THE REPOSITORY CLASS"
.sp
-A Repository describes a group of packages, normally comming from the same source\&. Repositories are created by the Pool\(cqs add_repo() method\&.
+A Repository describes a group of packages, normally coming from the same source\&. Repositories are created by the Pool\(cqs add_repo() method\&.
.SS "ATTRIBUTES"
.sp
.if n \{\
.\}
.nf
\fBPool *pool;\fR /* read only */
-\fI$repo\fR\fB\->{\*(Aqpool\*(Aq}\fR
+\fI$repo\fR\fB\->{pool}\fR
\fIrepo\fR\fB\&.pool\fR
\fIrepo\fR\fB\&.pool\fR
.fi
.\}
.nf
\fBId id;\fR /* read only */
-\fI$repo\fR\fB\->{\*(Aqid\*(Aq}\fR
+\fI$repo\fR\fB\->{id}\fR
\fIrepo\fR\fB\&.id\fR
\fIrepo\fR\fB\&.id\fR
.fi
.\}
.nf
\fBconst char *name;\fR /* read/write */
-\fI$repo\fR\fB\->{\*(Aqname\*(Aq}\fR
+\fI$repo\fR\fB\->{name}\fR
\fIrepo\fR\fB\&.name\fR
\fIrepo\fR\fB\&.name\fR
.fi
.RS 4
.\}
.nf
-\fBint prioprity;\fR /* read/write */
-\fI$repo\fR\fB\->{\*(Aqpriority\*(Aq}\fR
+\fBint priority;\fR /* read/write */
+\fI$repo\fR\fB\->{priority}\fR
\fIrepo\fR\fB\&.priority\fR
\fIrepo\fR\fB\&.priority\fR
.fi
.RS 4
.\}
.nf
-\fBint subprioprity;\fR /* read/write */
-\fI$repo\fR\fB\->{\*(Aqsubpriority\*(Aq}\fR
+\fBint subpriority;\fR /* read/write */
+\fI$repo\fR\fB\->{subpriority}\fR
\fIrepo\fR\fB\&.subpriority\fR
\fIrepo\fR\fB\&.subpriority\fR
.fi
.\}
.nf
\fBint nsolvables;\fR /* read only */
-\fI$repo\fR\fB\->{\*(Aqnsolvables\*(Aq}\fR
+\fI$repo\fR\fB\->{nsolvables}\fR
\fIrepo\fR\fB\&.nsolvables\fR
\fIrepo\fR\fB\&.nsolvables\fR
.fi
.\}
.nf
\fBvoid *appdata;\fR /* read/write */
-\fI$repo\fR\fB\->{\*(Aqappdata\*(Aq}\fR
+\fI$repo\fR\fB\->{appdata}\fR
\fIrepo\fR\fB\&.appdata\fR
\fIrepo\fR\fB\&.appdata\fR
.fi
.\}
.nf
\fBDatapos *meta;\fR /* read only */
-\fI$repo\fR\fB\->{\*(Aqmeta\*(Aq}\fR
+\fI$repo\fR\fB\->{meta}\fR
\fIrepo\fR\fB\&.meta\fR
\fIrepo\fR\fB\&.meta\fR
.fi
.PP
\fBREPO_REUSE_REPODATA\fR
.RS 4
-Reuse the last repository data aera (\(lqrepodata\(rq) instead of creating a new one\&.
+Reuse the last repository data area (\(lqrepodata\(rq) instead of creating a new one\&.
.RE
.PP
\fBREPO_NO_INTERNALIZE\fR
.PP
\fBSUSETAGS_RECORD_SHARES\fR
.RS 4
-This is specific to the add_susetags() method\&. Susetags allows to refer to already read packages to save disk space\&. If this data sharing needs to work over multiple calls to add_susetags, you need to specify this flag so that the share information is made available to subsequent calls\&.
+This is specific to the add_susetags() method\&. Susetags allows one to refer to already read packages to save disk space\&. If this data sharing needs to work over multiple calls to add_susetags, you need to specify this flag so that the share information is made available to subsequent calls\&.
.RE
.SS "METHODS"
.sp
.RS 4
.\}
.nf
-\fBSolvableiterator *solvables_iter()\fR
+\fBSolvableiterator solvables_iter()\fR
\fBfor my\fR \fI$solvable\fR \fB(\fR\fI@\fR\fB{\fR\fI$repo\fR\fB\->solvables_iter()})\fR
\fBfor\fR \fIsolvable\fR \fBin\fR \fIrepo\fR\fB\&.solvables_iter():\fR
\fBfor\fR \fIsolvable\fR \fBin\fR \fIrepo\fR\fB\&.solvables_iter()\fR
.RS 4
.\}
.nf
-\fBRepodata *add_repodata(int\fR \fIflags\fR \fB= 0)\fR
+\fBRepodata add_repodata(int\fR \fIflags\fR \fB= 0)\fR
my \fI$repodata\fR \fB=\fR \fI$repo\fR\fB\->add_repodata()\fR;
\fIrepodata\fR \fB=\fR \fIrepo\fR\fB\&.add_repodata()\fR
\fIrepodata\fR \fB=\fR \fIrepo\fR\fB\&.add_repodata()\fR
.RS 4
.\}
.nf
-\fBRepodata *first_repodata()\fR
+\fBRepodata first_repodata()\fR
my \fI$repodata\fR \fB=\fR \fI$repo\fR\fB\->first_repodata()\fR;
\fIrepodata\fR \fB=\fR \fIrepo\fR\fB\&.first_repodata()\fR
\fIrepodata\fR \fB=\fR \fIrepo\fR\fB\&.first_repodata()\fR
.RE
.\}
.sp
-Checks if all repodatas but the first repodata are extensions, and return the first repodata if this is the case\&. Useful if you want to do a store/retrive sequence on the repository to reduce the memory using and enable paging, as this does not work if the rpository contains multiple non\-extension repodata areas\&.
+Checks if all repodatas but the first repodata are extensions, and return the first repodata if this is the case\&. Useful if you want to do a store/retrieve sequence on the repository to reduce the memory using and enable paging, as this does not work if the repository contains multiple non\-extension repodata areas\&.
.sp
.if n \{\
.RS 4
.\}
.nf
-\fBSelection *Selection(int\fR \fIsetflags\fR \fB= 0)\fR
+\fBSelection Selection(int\fR \fIsetflags\fR \fB= 0)\fR
my \fI$sel\fR \fB=\fR \fI$repo\fR\fB\->Selection()\fR;
\fIsel\fR \fB=\fR \fIrepo\fR\fB\&.Selection()\fR
\fIsel\fR \fB=\fR \fIrepo\fR\fB\&.Selection()\fR
.RS 4
.\}
.nf
-\fBDataiterator *Dataiterator(Id\fR \fIp\fR\fB, Id\fR \fIkey\fR\fB, const char *\fR\fImatch\fR\fB, int\fR \fIflags\fR\fB)\fR
-my \fI$di\fR \fB=\fR \fI$repo\fR\fB\->Dataiterator(\fR\fI$solvid\fR\fB,\fR \fI$keyname\fR\fB,\fR \fI$match\fR\fB,\fR \fI$flags\fR\fB)\fR;
-\fIdi\fR \fB=\fR \fIrepo\fR\fB\&.Dataiterator(\fR\fIsolvid\fR\fB,\fR \fIkeyname\fR\fB,\fR \fImatch\fR\fB,\fR \fIflags\fR\fB)\fR
-\fIdi\fR \fB=\fR \fIrepo\fR\fB\&.Dataiterator(\fR\fIsolvid\fR\fB,\fR \fIkeyname\fR\fB,\fR \fImatch\fR\fB,\fR \fIflags\fR\fB)\fR
+\fBDataiterator Dataiterator(Id\fR \fIkey\fR\fB, const char *\fR\fImatch\fR \fB= 0, int\fR \fIflags\fR \fB= 0)\fR
+my \fI$di\fR \fB=\fR \fI$repo\fR\fB\->Dataiterator(\fR\fI$keyname\fR\fB,\fR \fI$match\fR\fB,\fR \fI$flags\fR\fB)\fR;
+\fIdi\fR \fB=\fR \fIrepo\fR\fB\&.Dataiterator(\fR\fIkeyname\fR\fB,\fR \fImatch\fR\fB,\fR \fIflags\fR\fB)\fR
+\fIdi\fR \fB=\fR \fIrepo\fR\fB\&.Dataiterator(\fR\fIkeyname\fR\fB,\fR \fImatch\fR\fB,\fR \fIflags\fR\fB)\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBDataiterator Dataiterator_meta(Id\fR \fIkey\fR\fB, const char *\fR\fImatch\fR \fB= 0, int\fR \fIflags\fR \fB= 0)\fR
+my \fI$di\fR \fB=\fR \fI$repo\fR\fB\->Dataiterator_meta(\fR\fI$keyname\fR\fB,\fR \fI$match\fR\fB,\fR \fI$flags\fR\fB)\fR;
+\fIdi\fR \fB=\fR \fIrepo\fR\fB\&.Dataiterator_meta(\fR\fIkeyname\fR\fB,\fR \fImatch\fR\fB,\fR \fIflags\fR\fB)\fR
+\fIdi\fR \fB=\fR \fIrepo\fR\fB\&.Dataiterator_meta(\fR\fIkeyname\fR\fB,\fR \fImatch\fR\fB,\fR \fIflags\fR\fB)\fR
.fi
.if n \{\
.RE
.RE
.\}
.sp
-Iterate over the matching data elements in this repository\&. See the Dataiterator class for more information\&.
+Iterate over the matching data elements in this repository\&. See the Dataiterator class for more information\&. The Dataiterator() method iterates over all solvables in a repository, whereas the Dataiterator_meta method only iterates over the repository\(cqs meta data\&.
.sp
.if n \{\
.RS 4
.\}
.nf
\fB<stringification>\fR
-my \fI$str\fR \fB= "\fR\fI$repo\fR\fB"\fR;
+my \fI$str\fR \fB=\fR \fI$repo\fR\fB\->str\fR;
\fIstr\fR \fB= str(\fR\fIrepo\fR\fB)\fR
\fIstr\fR \fB=\fR \fIrepo\fR\fB\&.to_s\fR
.fi
.RS 4
.\}
.nf
-\fBSolvable *add_solvable()\fR
+\fBSolvable add_solvable()\fR
\fI$repo\fR\fB\->add_solvable()\fR;
\fIrepo\fR\fB\&.add_solvable()\fR
\fIrepo\fR\fB\&.add_solvable()\fR
.\}
.nf
\fBbool add_solv(const char *\fR\fIname\fR\fB, int\fR \fIflags\fR \fB= 0)\fR
-\fI$repo\fR\fB\->add_solv(\fR\fI$name\fR\fB,\fR \fI$flags\fR\fB)\fR;
-\fIrepo\fR\fB\&.add_solv(\fR\fIname\fR\fB,\fR \fIflags\fR\fB)\fR
-\fIrepo\fR\fB\&.add_solv(\fR\fIname\fR\fB,\fR \fIflags\fR\fB)\fR
+\fI$repo\fR\fB\->add_solv(\fR\fI$name\fR\fB)\fR;
+\fIrepo\fR\fB\&.add_solv(\fR\fIname\fR\fB)\fR
+\fIrepo\fR\fB\&.add_solv(\fR\fIname\fR\fB)\fR
.fi
.if n \{\
.RE
.\}
.nf
\fBbool add_solv(FILE *\fR\fIfp\fR\fB, int\fR \fIflags\fR \fB= 0)\fR
-\fI$repo\fR\fB\->add_solv(\fR\fI$fp\fR\fB,\fR \fI$flags\fR\fB)\fR;
-\fIrepo\fR\fB\&.add_solv(\fR\fIfp\fR\fB,\fR \fIflags\fR\fB)\fR
-\fIrepo\fR\fB\&.add_solv(\fR\fIfp\fR\fB,\fR \fIflags\fR\fB)\fR
+\fI$repo\fR\fB\->add_solv(\fR\fI$fp\fR\fB)\fR;
+\fIrepo\fR\fB\&.add_solv(\fR\fIfp\fR\fB)\fR
+\fIrepo\fR\fB\&.add_solv(\fR\fIfp\fR\fB)\fR
.fi
.if n \{\
.RE
.\}
.nf
\fBbool add_rpmdb(int\fR \fIflags\fR \fB= 0)\fR
-\fI$repo\fR\fB\->add_rpmdb(\fR\fI$flags\fR\fB)\fR;
-\fIrepo\fR\fB\&.add_rpmdb(\fR\fIflags\fR\fB)\fR
-\fIrepo\fR\fB\&.add_rpmdb(\fR\fIflags\fR\fB)\fR
+\fI$repo\fR\fB\->add_rpmdb()\fR;
+\fIrepo\fR\fB\&.add_rpmdb()\fR
+\fIrepo\fR\fB\&.add_rpmdb()\fR
.fi
.if n \{\
.RE
.\}
.nf
\fBbool add_rpmdb_reffp(FILE *\fR\fIreffp\fR\fB, int\fR \fIflags\fR \fB= 0)\fR
-\fI$repo\fR\fB\->add_rpmdb_reffp(\fR\fI$reffp\fR\fB,\fR \fI$flags\fR\fB)\fR;
-\fIrepo\fR\fB\&.add_rpmdb_reffp(\fR\fI$reffp\fR\fB,\fR \fIflags\fR\fB)\fR
-\fIrepo\fR\fB\&.add_rpmdb_reffp(\fR\fI$reffp\fR\fB,\fR \fIflags\fR\fB)\fR
+\fI$repo\fR\fB\->add_rpmdb_reffp(\fR\fI$reffp\fR\fB)\fR;
+\fIrepo\fR\fB\&.add_rpmdb_reffp(\fR\fIreffp\fR\fB)\fR
+\fIrepo\fR\fB\&.add_rpmdb_reffp(\fR\fIreffp\fR\fB)\fR
.fi
.if n \{\
.RE
.RS 4
.\}
.nf
-\fBbool add_rpm(const char *\fR\fIname\fR\fB, int\fR \fIflags\fR \fB= 0)\fR
-\fI$repo\fR\fB\->add_rpm(\fR\fI$name\fR\fB,\fR \fI$flags\fR\fB)\fR;
-\fIrepo\fR\fB\&.add_rpm(\fR\fIname\fR\fB,\fR \fIflags\fR\fB)\fR
-\fIrepo\fR\fB\&.add_rpm(\fR\fIname\fR\fB,\fR \fIflags\fR\fB)\fR
+\fBSolvable add_rpm(const char *\fR\fIfilename\fR\fB, int\fR \fIflags\fR \fB= 0)\fR
+my \fI$solvable\fR \fB=\fR \fI$repo\fR\fB\->add_rpm(\fR\fI$filename\fR\fB)\fR;
+\fIsolvable\fR \fB=\fR \fIrepo\fR\fB\&.add_rpm(\fR\fIfilename\fR\fB)\fR
+\fIsolvable\fR \fB=\fR \fIrepo\fR\fB\&.add_rpm(\fR\fIfilename\fR\fB)\fR
.fi
.if n \{\
.RE
.RS 4
.\}
.nf
-\fBbool add_pubkey(const char *\fR\fIkeyfile\fR\fB, int\fR \fIflags\fR \fB= 0)\fR
-\fI$repo\fR\fB\->add_pubkey(\fR\fI$keyfile\fR\fB)\fR;
-\fIrepo\fR\fB\&.add_pubkey(\fR\fI$keyfile\fR\fB)\fR
-\fIrepo\fR\fB\&.add_pubkey(\fR\fI$keyfile\fR\fB)\fR
+\fBSolvable add_pubkey(const char *\fR\fIkeyfile\fR\fB, int\fR \fIflags\fR \fB= 0)\fR
+my \fI$solvable\fR \fB=\fR \fI$repo\fR\fB\->add_pubkey(\fR\fI$keyfile\fR\fB)\fR;
+\fIsolvable\fR \fB=\fR \fIrepo\fR\fB\&.add_pubkey(\fR\fIkeyfile\fR\fB)\fR
+\fIsolvable\fR \fB=\fR \fIrepo\fR\fB\&.add_pubkey(\fR\fIkeyfile\fR\fB)\fR
.fi
.if n \{\
.RE
.\}
.nf
\fBbool add_rpmmd(FILE *\fR\fIfp\fR\fB, const char *\fR\fIlanguage\fR\fB, int\fR \fIflags\fR \fB= 0)\fR
-\fI$repo\fR\fB\->add_rpmmd(\fR\fI$fp\fR\fB,\fR \fI$language\fR\fB)\fR;
-\fIrepo\fR\fB\&.add_rpmmd(\fR\fIfp\fR\fB,\fR \fIlanguage\fR\fB)\fR
-\fIrepo\fR\fB\&.add_rpmmd(\fR\fIfp\fR\fB,\fR \fIlanguage\fR\fB)\fR
+\fI$repo\fR\fB\->add_rpmmd(\fR\fI$fp\fR\fB,\fR \fIundef\fR\fB)\fR;
+\fIrepo\fR\fB\&.add_rpmmd(\fR\fIfp\fR\fB,\fR \fINone\fR\fB)\fR
+\fIrepo\fR\fB\&.add_rpmmd(\fR\fIfp\fR\fB,\fR \fInil\fR\fB)\fR
.fi
.if n \{\
.RE
.RE
.\}
.sp
-Add the repomd\&.xml meta description from the "rpm\-md" format to the repository\&. This file contains information about the repository like keywords, and also a list of all database files with checksums\&. The data is added the the "meta" section of the repository, i\&.e\&. no package gets created\&.
+Add the repomd\&.xml meta description from the "rpm\-md" format to the repository\&. This file contains information about the repository like keywords, and also a list of all database files with checksums\&. The data is added to the "meta" section of the repository, i\&.e\&. no package gets created\&.
.sp
.if n \{\
.RS 4
.RS 4
.\}
.nf
-\fBbool add_deb(const char *\fR\fIfilename\fR\fB, int\fR \fIflags\fR \fB= 0)\fR
-\fI$repo\fR\fB\->add_deb(\fR\fI$filename\fR\fB)\fR;
-\fIrepo\fR\fB\&.add_deb(\fR\fIfilename\fR\fB)\fR
-\fIrepo\fR\fB\&.add_deb(\fR\fIfilename\fR\fB)\fR
+\fBSolvable add_deb(const char *\fR\fIfilename\fR\fB, int\fR \fIflags\fR \fB= 0)\fR
+my \fI$solvable\fR \fB=\fR \fI$repo\fR\fB\->add_deb(\fR\fI$filename\fR\fB)\fR;
+\fIsolvable\fR \fB=\fR \fIrepo\fR\fB\&.add_deb(\fR\fIfilename\fR\fB)\fR
+\fIsolvable\fR \fB=\fR \fIrepo\fR\fB\&.add_deb(\fR\fIfilename\fR\fB)\fR
.fi
.if n \{\
.RE
.nf
\fBbool add_mdk(FILE *\fR\fIfp\fR\fB, int\fR \fIflags\fR \fB= 0)\fR
\fI$repo\fR\fB\->add_mdk(\fR\fI$fp\fR\fB)\fR;
-\fIrepo\fR\fB\&.add_mdk(\fR\fI$fp\fR\fB)\fR
-\fIrepo\fR\fB\&.add_mdk(\fR\fI$fp\fR\fB)\fR
+\fIrepo\fR\fB\&.add_mdk(\fR\fIfp\fR\fB)\fR
+\fIrepo\fR\fB\&.add_mdk(\fR\fIfp\fR\fB)\fR
.fi
.if n \{\
.RE
.nf
\fBbool add_mdk_info(FILE *\fR\fIfp\fR\fB, int\fR \fIflags\fR \fB= 0)\fR
\fI$repo\fR\fB\->add_mdk(\fR\fI$fp\fR\fB)\fR;
-\fIrepo\fR\fB\&.add_mdk(\fR\fI$fp\fR\fB)\fR
-\fIrepo\fR\fB\&.add_mdk(\fR\fI$fp\fR\fB)\fR
+\fIrepo\fR\fB\&.add_mdk(\fR\fIfp\fR\fB)\fR
+\fIrepo\fR\fB\&.add_mdk(\fR\fIfp\fR\fB)\fR
.fi
.if n \{\
.RE
.nf
\fBbool add_arch_repo(FILE *\fR\fIfp\fR\fB, int\fR \fIflags\fR \fB= 0)\fR
\fI$repo\fR\fB\->add_arch_repo(\fR\fI$fp\fR\fB)\fR;
-\fIrepo\fR\fB\&.add_arch_repo(\fR\fI$fp\fR\fB)\fR
-\fIrepo\fR\fB\&.add_arch_repo(\fR\fI$fp\fR\fB)\fR
+\fIrepo\fR\fB\&.add_arch_repo(\fR\fIfp\fR\fB)\fR
+\fIrepo\fR\fB\&.add_arch_repo(\fR\fIfp\fR\fB)\fR
.fi
.if n \{\
.RE
.nf
\fBbool add_arch_local(const char *\fR\fIdir\fR\fB, int\fR \fIflags\fR \fB= 0)\fR
\fI$repo\fR\fB\->add_arch_local(\fR\fI$dir\fR\fB)\fR;
-\fIrepo\fR\fB\&.add_arch_local(\fR\fI$dir\fR\fB)\fR
-\fIrepo\fR\fB\&.add_arch_local(\fR\fI$dir\fR\fB)\fR
+\fIrepo\fR\fB\&.add_arch_local(\fR\fIdir\fR\fB)\fR
+\fIrepo\fR\fB\&.add_arch_local(\fR\fIdir\fR\fB)\fR
.fi
.if n \{\
.RE
.RE
.\}
.sp
-Add the \(lqcontent\(rq meta description from the susetags format to the repository\&. This file contains information about the repository like keywords, and also a list of all database files with checksums\&. The data is added the the "meta" section of the repository, i\&.e\&. no package gets created\&.
+Add the \(lqcontent\(rq meta description from the susetags format to the repository\&. This file contains information about the repository like keywords, and also a list of all database files with checksums\&. The data is added to the "meta" section of the repository, i\&.e\&. no package gets created\&.
.sp
.if n \{\
.RS 4
.\}
.nf
\fBRepo *repo;\fR /* read only */
-\fI$solvable\fR\fB\->{\*(Aqrepo\*(Aq}\fR
+\fI$solvable\fR\fB\->{repo}\fR
\fIsolvable\fR\fB\&.repo\fR
\fIsolvable\fR\fB\&.repo\fR
.fi
.\}
.nf
\fBPool *pool;\fR /* read only */
-\fI$solvable\fR\fB\->{\*(Aqpool\*(Aq}\fR
+\fI$solvable\fR\fB\->{pool}\fR
\fIsolvable\fR\fB\&.pool\fR
\fIsolvable\fR\fB\&.pool\fR
.fi
.\}
.nf
\fBId id;\fR /* read only */
-\fI$solvable\fR\fB\->{\*(Aqid\*(Aq}\fR
+\fI$solvable\fR\fB\->{id}\fR
\fIsolvable\fR\fB\&.id\fR
\fIsolvable\fR\fB\&.id\fR
.fi
.\}
.nf
\fBchar *name;\fR /* read/write */
-\fI$solvable\fR\fB\->{\*(Aqname\*(Aq}\fR
+\fI$solvable\fR\fB\->{name}\fR
\fIsolvable\fR\fB\&.name\fR
\fIsolvable\fR\fB\&.name\fR
.fi
.\}
.nf
\fBchar *evr;\fR /* read/write */
-\fI$solvable\fR\fB\->{\*(Aqevr\*(Aq}\fR
+\fI$solvable\fR\fB\->{evr}\fR
\fIsolvable\fR\fB\&.evr\fR
\fIsolvable\fR\fB\&.evr\fR
.fi
.\}
.nf
\fBchar *arch;\fR /* read/write */
-\fI$solvable\fR\fB\->{\*(Aqarch\*(Aq}\fR
+\fI$solvable\fR\fB\->{arch}\fR
\fIsolvable\fR\fB\&.arch\fR
\fIsolvable\fR\fB\&.arch\fR
.fi
.\}
.nf
\fBchar *vendor;\fR /* read/write */
-\fI$solvable\fR\fB\->{\*(Aqvendor\*(Aq}\fR
+\fI$solvable\fR\fB\->{vendor}\fR
\fIsolvable\fR\fB\&.vendor\fR
\fIsolvable\fR\fB\&.vendor\fR
.fi
.\}
.nf
\fBId nameid;\fR /* read/write */
-\fI$solvable\fR\fB\->{\*(Aqnameid\*(Aq}\fR
+\fI$solvable\fR\fB\->{nameid}\fR
\fIsolvable\fR\fB\&.nameid\fR
\fIsolvable\fR\fB\&.nameid\fR
.fi
.\}
.nf
\fBId evrid;\fR /* read/write */
-\fI$solvable\fR\fB\->{\*(Aqevrid\*(Aq}\fR
+\fI$solvable\fR\fB\->{evrid}\fR
\fIsolvable\fR\fB\&.evrid\fR
\fIsolvable\fR\fB\&.evrid\fR
.fi
.\}
.nf
\fBId archid;\fR /* read/write */
-\fI$solvable\fR\fB\->{\*(Aqarchid\*(Aq}\fR
+\fI$solvable\fR\fB\->{archid}\fR
\fIsolvable\fR\fB\&.archid\fR
\fIsolvable\fR\fB\&.archid\fR
.fi
.\}
.nf
\fBId vendorid;\fR /* read/write */
-\fI$solvable\fR\fB\->{\*(Aqvendorid\*(Aq}\fR
+\fI$solvable\fR\fB\->{vendorid}\fR
\fIsolvable\fR\fB\&.vendorid\fR
\fIsolvable\fR\fB\&.vendorid\fR
.fi
.RS 4
.\}
.nf
-\fBChksum *lookup_checksum(Id\fR \fIkeyname\fR\fB)\fR
+\fBChksum lookup_checksum(Id\fR \fIkeyname\fR\fB)\fR
my \fI$chksum\fR \fB=\fR \fI$solvable\fR\fB\->lookup_checksum(\fR\fI$keyname\fR\fB)\fR;
\fIchksum\fR \fB=\fR \fIsolvable\fR\fB\&.lookup_checksum(\fR\fIkeyname\fR\fB)\fR
\fIchksum\fR \fB=\fR \fIsolvable\fR\fB\&.lookup_checksum(\fR\fIkeyname\fR\fB)\fR
.RS 4
.\}
.nf
-\fBQueue lookup_idarray(Id\fR \fIkeyname\fR\fB, Id\fR \fImarker\fR \fB= \-1)\fR
+\fBId *lookup_idarray(Id\fR \fIkeyname\fR\fB, Id\fR \fImarker\fR \fB= \-1)\fR
my \fI@ids\fR \fB=\fR \fI$solvable\fR\fB\->lookup_idarray(\fR\fI$keyname\fR\fB)\fR;
\fIids\fR \fB=\fR \fIsolvable\fR\fB\&.lookup_idarray(\fR\fIkeyname\fR\fB)\fR
\fIids\fR \fB=\fR \fIsolvable\fR\fB\&.lookup_idarray(\fR\fIkeyname\fR\fB)\fR
.RS 4
.\}
.nf
-\fBQueue lookup_deparray(Id\fR \fIkeyname\fR\fB, Id\fR \fImarker\fR \fB= \-1)\fR
+\fBDep *lookup_deparray(Id\fR \fIkeyname\fR\fB, Id\fR \fImarker\fR \fB= \-1)\fR
my \fI@deps\fR \fB=\fR \fI$solvable\fR\fB\->lookup_deparray(\fR\fI$keyname\fR\fB)\fR;
\fIdeps\fR \fB=\fR \fIsolvable\fR\fB\&.lookup_deparray(\fR\fIkeyname\fR\fB)\fR
\fIdeps\fR \fB=\fR \fIsolvable\fR\fB\&.lookup_deparray(\fR\fIkeyname\fR\fB)\fR
.RE
.\}
.sp
-Generic lookup methods\&. Retrieve data stored for the specific keyname\&. The lookup_idarray() method will return an array of Ids, use lookup_deparray if you want an array of Dependency objects instead\&. Some Id arrays contain two parts of data divided by a specific marker, for example the provides array uses the SOLVABLE_FILEMARKER id to store both the ids provided by the package and the ids added by the addfileprovides method\&. The default, \-1, translates to the correct marker for the keyname and returns the first part of the array, use 1 to select the second part or 0 to retrive all ids including the marker\&.
+Generic lookup methods\&. Retrieve data stored for the specific keyname\&. The lookup_idarray() method will return an array of Ids, use lookup_deparray if you want an array of Dependency objects instead\&. Some Id arrays contain two parts of data divided by a specific marker, for example the provides array uses the SOLVABLE_FILEMARKER id to store both the ids provided by the package and the ids added by the addfileprovides method\&. The default, \-1, translates to the correct marker for the keyname and returns the first part of the array, use 1 to select the second part or 0 to retrieve all ids including the marker\&.
.sp
.if n \{\
.RS 4
.RS 4
.\}
.nf
+\fBDataiterator Dataiterator(Id\fR \fIkeyname\fR\fB, const char *\fR\fImatch\fR \fB= 0, int\fR \fIflags\fR \fB= 0)\fR
+my \fI$di\fR \fB=\fR \fI$solvable\fR\fB\->Dataiterator(\fR\fI$keyname\fR\fB,\fR \fI$match\fR\fB,\fR \fI$flags\fR\fB)\fR;
+\fIdi\fR \fB=\fR \fIsolvable\fR\fB\&.Dataiterator(\fR\fIkeyname\fR\fB,\fR \fImatch\fR\fB,\fR \fIflags\fR\fB)\fR
+\fIdi\fR \fB=\fR \fIsolvable\fR\fB\&.Dataiterator(\fR\fIkeyname\fR\fB,\fR \fImatch\fR\fB,\fR \fIflags\fR\fB)\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBfor my\fR \fI$d\fR \fB(\fR\fI@$di\fR\fB)\fR
+\fBfor\fR \fId\fR \fBin\fR \fIdi\fR\fB:\fR
+\fBfor\fR \fId\fR \fBin\fR \fIdi\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Iterate over the matching data elements\&. See the Dataiterator class for more information\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
\fBvoid add_deparray(Id\fR \fIkeyname\fR\fB, DepId\fR \fIdep\fR\fB, Id\fR \fImarker\fR \fB= \-1)\fR;
\fI$solvable\fR\fB\->add_deparray(\fR\fI$keyname\fR\fB,\fR \fI$dep\fR\fB)\fR;
\fIsolvable\fR\fB\&.add_deparray(\fR\fIkeyname\fR\fB,\fR \fIdep\fR\fB)\fR
.RS 4
.\}
.nf
+\fBvoid unset(Id\fR \fIkeyname\fR\fB)\fR;
+\fI$solvable\fR\fB\->unset(\fR\fI$keyname\fR\fB)\fR;
+\fIsolvable\fR\fB\&.unset(\fR\fIkeyname\fR\fB)\fR
+\fIsolvable\fR\fB\&.unset(\fR\fIkeyname\fR\fB)\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Delete data stored for the specific keyname\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
\fBbool installable()\fR;
\fI$solvable\fR\fB\->installable()\fR
\fIsolvable\fR\fB\&.installable()\fR
.RS 4
.\}
.nf
-\fBSelection *Selection(int\fR \fIsetflags\fR \fB= 0)\fR
+\fBbool identical(Solvable *\fR\fIother\fR\fB)\fR
+\fI$solvable\fR\fB\->identical(\fR\fI$other\fR\fB)\fR
+\fI$solvable\fR\fB\&.identical(\fR\fIother\fR\fB)\fR
+\fI$solvable\fR\fB\&.identical?(\fR\fIother\fR\fB)\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Return true if the two solvables are identical\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBint evrcmp(Solvable *\fR\fIother\fR\fB)\fR
+\fI$solvable\fR\fB\->evrcmp(\fR\fIother\fR\fB)\fR
+\fI$solvable\fR\fB\&.evrcmp(\fR\fIother\fR\fB)\fR
+\fI$solvable\fR\fB\&.evrcmp(\fR\fIother\fR\fB)\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Returns \-1 if the epoch/version/release of the solvable is less than the one from the other solvable, 1 if it is greater, and 0 if they are equal\&. Note that "equal" does not mean that the evr is identical\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBSelection Selection(int\fR \fIsetflags\fR \fB= 0)\fR
my \fI$sel\fR \fB=\fR \fI$solvable\fR\fB\->Selection()\fR;
\fIsel\fR \fB=\fR \fIsolvable\fR\fB\&.Selection()\fR
\fIsel\fR \fB=\fR \fIsolvable\fR\fB\&.Selection()\fR
.\}
.nf
\fB<stringification>\fR
-my \fI$str\fR \fB= "\fR\fI$solvable\fR\fB"\fR;
+my \fI$str\fR \fB=\fR \fI$solvable\fR\fB\->str\fR;
\fIstr\fR \fB= str(\fR\fIsolvable\fR\fB)\fR
\fIstr\fR \fB=\fR \fIsolvable\fR\fB\&.to_s\fR
.fi
.\}
.nf
\fBPool *pool;\fR /* read only */
-\fI$d\fR\fB\->{\*(Aqpool\*(Aq}\fR
+\fI$d\fR\fB\->{pool}\fR
\fId\fR\fB\&.pool\fR
\fId\fR\fB\&.pool\fR
.fi
.\}
.nf
\fBRepo *repo;\fR /* read only */
-\fI$d\fR\fB\->{\*(Aqrepo\*(Aq}\fR
+\fI$d\fR\fB\->{repo}\fR
\fId\fR\fB\&.repo\fR
\fId\fR\fB\&.repo\fR
.fi
.\}
.nf
\fBSolvable *solvable;\fR /* read only */
-\fI$d\fR\fB\->{\*(Aqsolvable\*(Aq}\fR
+\fI$d\fR\fB\->{solvable}\fR
\fId\fR\fB\&.solvable\fR
\fId\fR\fB\&.solvable\fR
.fi
.\}
.nf
\fBId solvid;\fR /* read only */
-\fI$d\fR\fB\->{\*(Aqsolvid\*(Aq}\fR
+\fI$d\fR\fB\->{solvid}\fR
\fId\fR\fB\&.solvid\fR
\fId\fR\fB\&.solvid\fR
.fi
.\}
.sp
The id of the solvable that matched\&.
-.SS "METHODS"
.sp
.if n \{\
.RS 4
.\}
.nf
-\fBId key_id()\fR;
-\fI$d\fR\fB\->key_id()\fR
-\fId\fR\fB\&.key_id()\fR
-\fId\fR\fB\&.key_id()\fR
+\fBId\fR \fIkey_id\fR;
+\fI$d\fR\fB\->{\fR\fIkey_id\fR\fB}\fR
+\fId\fR\fB\&.key_id\fR
+\fId\fR\fB\&.key_id\fR
.fi
.if n \{\
.RE
.RS 4
.\}
.nf
-\fBconst char *key_idstr()\fR;
-\fI$d\fR\fB\->key_idstr()\fR
-\fId\fR\fB\&.key_idstr()\fR
-\fId\fR\fB\&.key_idstr()\fR
+\fBconst char *\fR\fIkey_idstr\fR;
+\fI$d\fR\fB\->{\fR\fIkey_idstr\fR\fB}\fR
+\fId\fR\fB\&.key_idstr\fR
+\fId\fR\fB\&.key_idstr\fR
.fi
.if n \{\
.RE
.RS 4
.\}
.nf
-\fBId type_id()\fR;
-\fI$d\fR\fB\->type_id()\fR
-\fId\fR\fB\&.type_id()\fR
-\fId\fR\fB\&.type_id()\fR
+\fBId\fR \fItype_id\fR;
+\fI$d\fR\fB\->{\fR\fItype_id\fR\fB}\fR
+\fId\fR\fB\&.type_id\fR
+\fId\fR\fB\&.type_id\fR
.fi
.if n \{\
.RE
.RS 4
.\}
.nf
-\fBconst char *type_idstr()\fR;
-\fI$d\fR\fB\->type_idstr()\fR;
-\fId\fR\fB\&.type_idstr()\fR
-\fId\fR\fB\&.type_idstr()\fR
+\fBconst char *\fR\fItype_idstr\fR;
+\fI$d\fR\fB\->{\fR\fItype_idstr\fR\fB}\fR;
+\fId\fR\fB\&.type_idstr\fR
+\fId\fR\fB\&.type_idstr\fR
.fi
.if n \{\
.RE
.RS 4
.\}
.nf
-\fBId id()\fR;
-\fI$d\fR\fB\->id()\fR
-\fId\fR\fB\&.id()\fR
-\fId\fR\fB\&.id()\fR
+\fBId\fR \fIid\fR;
+\fI$d\fR\fB\->{id}\fR
+\fId\fR\fB\&.id\fR
+\fId\fR\fB\&.id\fR
.fi
.if n \{\
.RE
.RS 4
.\}
.nf
-\fBId idstr()\fR;
-\fI$d\fR\fB\->idstr()\fR
-\fId\fR\fB\&.idstr()\fR
-\fId\fR\fB\&.idstr()\fR
+\fBId\fR \fIidstr\fR;
+\fI$d\fR\fB\->{idstr}\fR
+\fId\fR\fB\&.idstr\fR
+\fId\fR\fB\&.idstr\fR
.fi
.if n \{\
.RE
.RS 4
.\}
.nf
-\fBconst char *str()\fR;
-\fI$d\fR\fB\->str()\fR
-\fId\fR\fB\&.str()\fR
-\fId\fR\fB\&.str()\fR
+\fBconst char *\fR\fIstr\fR;
+\fI$d\fR\fB\->{str}\fR
+\fId\fR\fB\&.str\fR
+\fId\fR\fB\&.str\fR
.fi
.if n \{\
.RE
.RS 4
.\}
.nf
-\fBunsigned long long num()\fR;
-\fI$d\fR\fB\->num()\fR
-\fId\fR\fB\&.num()\fR
-\fId\fR\fB\&.num()\fR
+\fBunsigned long long\fR \fInum\fR;
+\fI$d\fR\fB\->{num}\fR
+\fId\fR\fB\&.num\fR
+\fId\fR\fB\&.num\fR
.fi
.if n \{\
.RE
.RS 4
.\}
.nf
-\fBunsigned int num2()\fR;
-\fI$d\fR\fB\->num2()\fR
-\fId\fR\fB\&.num2()\fR
-\fId\fR\fB\&.num2()\fR
+\fBunsigned int\fR \fInum2\fR;
+\fI$d\fR\fB\->{num2}\fR
+\fId\fR\fB\&.num2\fR
+\fId\fR\fB\&.num2\fR
.fi
.if n \{\
.RE
.RS 4
.\}
.nf
-\fBDatapos *pos()\fR;
+\fBunsigned int\fR \fIbinary\fR;
+\fI$d\fR\fB\->{binary}\fR
+\fId\fR\fB\&.binary\fR
+\fId\fR\fB\&.binary\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+The value in binary form, useful for checksums and other data that cannot be represented as a string\&.
+.SS "METHODS"
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBDatapos pos()\fR;
my \fI$pos\fR \fB=\fR \fI$d\fR\fB\->pos()\fR;
\fIpos\fR \fB=\fR \fId\fR\fB\&.pos()\fR
\fIpos\fR \fB=\fR \fId\fR\fB\&.pos()\fR
.RS 4
.\}
.nf
-\fBDatapos *parentpos()\fR;
+\fBDatapos parentpos()\fR;
my \fI$pos\fR \fB=\fR \fI$d\fR\fB\->parentpos()\fR;
\fIpos\fR \fB=\fR \fId\fR\fB\&.parentpos()\fR
\fIpos\fR \fB=\fR \fId\fR\fB\&.parentpos()\fR
.\}
.nf
\fB<stringification>\fR
-my \fI$str\fR \fB= "\fR\fI$d\fR\fB"\fR;
+my \fI$str\fR \fB=\fR \fI$d\fR\fB\->str\fR;
\fIstr\fR \fB= str(\fR\fId\fR\fB)\fR
\fIstr\fR \fB=\fR \fId\fR\fB\&.to_s\fR
.fi
.PP
\fBSELECTION_NAME\fR
.RS 4
-Create the selection by matching package names
+Create the selection by matching package names\&.
.RE
.PP
\fBSELECTION_PROVIDES\fR
.RS 4
-Create the selection by matching package provides
+Create the selection by matching package provides\&.
.RE
.PP
\fBSELECTION_FILELIST\fR
.RS 4
-Create the selection by matching package files
+Create the selection by matching package files\&.
.RE
.PP
\fBSELECTION_CANON\fR
.\}
.nf
\fBPool *pool;\fR /* read only */
-\fI$d\fR\fB\->{\*(Aqpool\*(Aq}\fR
+\fI$d\fR\fB\->{pool}\fR
\fId\fR\fB\&.pool\fR
\fId\fR\fB\&.pool\fR
.fi
.RS 4
.\}
.nf
-\fBJob **jobs(int\fR \fIaction\fR\fB)\fR
+\fBJob *jobs(int\fR \fIaction\fR\fB)\fR
my \fI@jobs\fR \fB=\fR \fI$sel\fR\fB\->jobs(\fR\fI$action\fR\fB)\fR;
\fIjobs\fR \fB=\fR \fIsel\fR\fB\&.jobs(\fR\fIaction\fR\fB)\fR
\fIjobs\fR \fB=\fR \fIsel\fR\fB\&.jobs(\fR\fIaction\fR\fB)\fR
.RS 4
.\}
.nf
-\fBSolvable **solvables()\fR
+\fBSolvable *solvables()\fR
my \fI@solvables\fR \fB=\fR \fI$sel\fR\fB\->solvables()\fR;
\fIsolvables\fR \fB=\fR \fIsel\fR\fB\&.solvables()\fR
\fIsolvables\fR \fB=\fR \fIsel\fR\fB\&.solvables()\fR
.\}
.nf
\fB<stringification>\fR
-my \fI$str\fR \fB= "\fR\fI$sel\fR\fB"\fR;
+my \fI$str\fR \fB=\fR \fI$sel\fR\fB\->str\fR;
\fIstr\fR \fB= str(\fR\fIsel\fR\fB)\fR
\fIstr\fR \fB=\fR \fIsel\fR\fB\&.to_s\fR
.fi
.PP
\fBSOLVER_MULTIVERSION\fR
.RS 4
-Mark the matched packages for multiversion install\&. If they get to be installed because of some other job, the installation will keep the old version of the package installed (for rpm by using \(oq`\-i\*(Aq\*(Aq instead of ``\-U\(cq\*(Aq)\&.
+Mark the matched packages for multiversion install\&. If they get to be installed because of some other job, the installation will keep the old version of the package installed (for rpm this is done by using \(lq\-i\(rq instead of \(lq\-U\(rq)\&.
.RE
.PP
\fBSOLVER_LOCK\fR
.PP
\fBSOLVER_DISTUPGRADE\fR
.RS 4
-Update the matching installed packages to the best version included in one of the repositories\&. After this operation, all come from one of the available repositories except orphaned packages\&. Orphaned packages are packages that have no relation to the packages in the repositories, i\&.e\&. no package in the repositories have the same name or obsolete the orphaned package\&. This action brings the installed packages in sync with the ones in the repository\&. It also turns of arch/vendor/version locking for the affected packages to simulate a fresh installation\&. This means that distupgrade can actually downgrade packages if only lower versions of a package are available in the repositories\&.
+Update the matching installed packages to the best version included in one of the repositories\&. After this operation, all come from one of the available repositories except orphaned packages\&. Orphaned packages are packages that have no relation to the packages in the repositories, i\&.e\&. no package in the repositories have the same name or obsolete the orphaned package\&. This action brings the installed packages in sync with the ones in the repository\&. By default it also turns of arch/vendor/version locking for the affected packages to simulate a fresh installation\&. This means that distupgrade can actually downgrade packages if only lower versions of a package are available in the repositories\&. You can tweak this behavior with the SOLVER_FLAG_DUP_ solver flags\&.
.RE
.PP
\fBSOLVER_DROP_ORPHANED\fR
.PP
\fBSOLVER_USERINSTALLED\fR
.RS 4
-The matching installed packages are considered to be installed by a user, thus not installed to fulfil some dependency\&. This is needed input for the calculation of unneeded packages for jobs that have the SOLVER_CLEANDEPS flag set\&.
+The matching installed packages are considered to be installed by a user, thus not installed to fulfill some dependency\&. This is needed input for the calculation of unneeded packages for jobs that have the SOLVER_CLEANDEPS flag set\&.
+.RE
+.PP
+\fBSOLVER_ALLOWUNINSTALL\fR
+.RS 4
+Allow the solver to deinstall the matching installed packages if they get into the way of resolving a dependency\&. This is like the SOLVER_FLAG_ALLOW_UNINSTALL flag, but limited to a specific set of packages\&.
.RE
.PP
\fBSOLVER_JOBMASK\fR
.PP
\fBSOLVER_WEAK\fR
.RS 4
-Makes the job a weak job\&. The solver tries to fulfil weak jobs, but does not report a problem if it is not possible to do so\&.
+Makes the job a weak job\&. The solver tries to fulfill weak jobs, but does not report a problem if it is not possible to do so\&.
.RE
.PP
\fBSOLVER_ESSENTIAL\fR
.\}
.nf
\fBPool *pool;\fR /* read only */
-\fI$job\fR\fB\->{\*(Aqpool\*(Aq}\fR
+\fI$job\fR\fB\->{pool}\fR
\fId\fR\fB\&.pool\fR
\fId\fR\fB\&.pool\fR
.fi
.\}
.nf
\fBId how;\fR /* read/write */
-\fI$job\fR\fB\->{\*(Aqhow\*(Aq}\fR
+\fI$job\fR\fB\->{how}\fR
\fId\fR\fB\&.how\fR
\fId\fR\fB\&.how\fR
.fi
.\}
.nf
\fBId what;\fR /* read/write */
-\fI$job\fR\fB\->{\*(Aqwhat\*(Aq}\fR
+\fI$job\fR\fB\->{what}\fR
\fId\fR\fB\&.what\fR
\fId\fR\fB\&.what\fR
.fi
.RS 4
.\}
.nf
-\fBSolvable **solvables()\fR
+\fBSolvable *solvables()\fR
my \fI@solvables\fR \fB=\fR \fI$job\fR\fB\->solvables()\fR;
\fIsolvables\fR \fB=\fR \fIjob\fR\fB\&.solvables()\fR
\fIsolvables\fR \fB=\fR \fIjob\fR\fB\&.solvables()\fR
.\}
.nf
\fB<stringification>\fR
-my \fI$str\fR \fB= "\fR\fI$job\fR\fB"\fR;
+my \fI$str\fR \fB=\fR \fI$job\fR\fB\->str\fR;
\fIstr\fR \fB= str(\fR\fIjob\fR\fB)\fR
\fIstr\fR \fB=\fR \fIjob\fR\fB\&.to_s\fR
.fi
.sp
So if a package "screen\-1\-1" is installed for the x86_64 architecture and version "2\-1" is only available for the i586 architecture, installing package "screen\-2\&.1" will ask the user for confirmation because of the different architecture\&. When using the Selection class to create jobs the set bits are automatically added, e\&.g\&. selecting \(lqscreen\&.i586\(rq will automatically add SOLVER_SETARCH, and thus no problem will be reported\&.
.SH "THE SOLVER CLASS"
+.sp
+Dependency solving is what this library is about\&. A solver object is needed for solving to store the result of the solver run\&. The solver object can be used multiple times for different jobs, reusing it allows the solver to re\-use the dependency rules it already computed\&.
.SS "CONSTANTS"
.sp
-Flags to modify some of the solver\(cqs behaviour:
+Flags to modify some of the solver\(cqs behavior:
.PP
\fBSOLVER_FLAG_ALLOW_DOWNGRADE\fR
.RS 4
.PP
\fBSOLVER_FLAG_ALLOW_UNINSTALL\fR
.RS 4
-Allow the solver to deinstall installed packages to fulfil the jobs\&. This flag also includes the above flags\&. You may want to set this flag if you only have SOLVER_ERASE jobs, as in that case it\(cqs better for the user to check the transaction overview instead of approving every single package that needs to be deinstalled\&.
+Allow the solver to erase installed packages to fulfill the jobs\&. This flag also includes the above flags\&. You may want to set this flag if you only have SOLVER_ERASE jobs, as in that case it\(cqs better for the user to check the transaction overview instead of approving every single package that needs to be erased\&.
+.RE
+.PP
+\fBSOLVER_FLAG_DUP_ALLOW_DOWNGRADE\fR
+.RS 4
+Like SOLVER_FLAG_ALLOW_DOWNGRADE, but used in distupgrade mode\&.
+.RE
+.PP
+\fBSOLVER_FLAG_DUP_ALLOW_ARCHCHANGE\fR
+.RS 4
+Like SOLVER_FLAG_ALLOW_ARCHCHANGE, but used in distupgrade mode\&.
+.RE
+.PP
+\fBSOLVER_FLAG_DUP_ALLOW_VENDORCHANGE\fR
+.RS 4
+Like SOLVER_FLAG_ALLOW_VENDORCHANGE, but used in distupgrade mode\&.
+.RE
+.PP
+\fBSOLVER_FLAG_DUP_ALLOW_NAMECHANGE\fR
+.RS 4
+Like SOLVER_FLAG_ALLOW_NAMECHANGE, but used in distupgrade mode\&.
.RE
.PP
\fBSOLVER_FLAG_NO_UPDATEPROVIDE\fR
.PP
\fBSOLVER_FLAG_ADD_ALREADY_RECOMMENDED\fR
.RS 4
-Install recommened or supplemented packages even if they have no connection to the current transaction\&. You can use this feature to implement a simple way for the user to install new recommended packages that were not available in the past\&.
+Install recommended or supplemented packages even if they have no connection to the current transaction\&. You can use this feature to implement a simple way for the user to install new recommended packages that were not available in the past\&.
.RE
.PP
\fBSOLVER_FLAG_NO_INFARCHCHECK\fR
.RS 4
Do not enable auto\-targeting up update and distupgrade jobs\&. See the section on targeted updates for more information\&.
.RE
+.PP
+\fBSOLVER_FLAG_KEEP_ORPHANS\fR
+.RS 4
+Do not allow orphaned packages to be deinstalled if they get in the way of resolving other packages\&.
+.RE
+.PP
+\fBSOLVER_FLAG_BREAK_ORPHANS\fR
+.RS 4
+Ignore dependencies of orphaned packages that get in the way of resolving non\-orphaned ones\&. Setting the flag might result in no longer working packages in case they are orphaned\&.
+.RE
+.PP
+\fBSOLVER_FLAG_FOCUS_INSTALLED\fR
+.RS 4
+Resolve installed packages before resolving the given job\&. Setting this flag means that the solver will prefer picking a package version that fits the other installed packages over updating installed packages\&.
+.RE
.sp
Basic rule types:
.PP
A rule of an unknown class\&. You should never encounter those\&.
.RE
.PP
-\fBSOLVER_RULE_RPM\fR
+\fBSOLVER_RULE_PKG\fR
.RS 4
-A package dependency rule, called rpm rule for historical reasons\&.
+A package dependency rule\&.
.RE
.PP
\fBSOLVER_RULE_UPDATE\fR
.PP
\fBSOLVER_RULE_FEATURE\fR
.RS 4
-Feature rules are fallback rules used when a update rule is disabled\&. They include all packages that may replace the installed package ignoring the update policy, i\&.e\&. they contain downgrades, arch changes and so on\&. Without them, the solver would simply deinstall installed packages if their update rule gets disabled\&.
+Feature rules are fallback rules used when an update rule is disabled\&. They include all packages that may replace the installed package ignoring the update policy, i\&.e\&. they contain downgrades, arch changes and so on\&. Without them, the solver would simply erase installed packages if their update rule gets disabled\&.
.RE
.PP
\fBSOLVER_RULE_JOB\fR
.PP
\fBSOLVER_RULE_DISTUPGRADE\fR
.RS 4
-This are simple negative assertions that make sure that only packages are kept that are also available in one of the repositories\&.
+These are simple negative assertions that make sure that only packages are kept that are also available in one of the repositories\&.
.RE
.PP
\fBSOLVER_RULE_INFARCH\fR
.PP
\fBSOLVER_RULE_CHOICE\fR
.RS 4
-Choice rules are used to make sure that the solver preferes updating to installing different packages when some dependency is provided by multiple packages with different names\&. The solver may always break choice rules, so you will not see them when a problem is found\&.
+Choice rules are used to make sure that the solver prefers updating to installing different packages when some dependency is provided by multiple packages with different names\&. The solver may always break choice rules, so you will not see them when a problem is found\&.
.RE
.PP
\fBSOLVER_RULE_LEARNT\fR
.RS 4
-These rules are generated by the solver to keep it from running into the same problem multiple times when it has to backtrack\&. They are the main reason why a sat solver is faster then other dependency solver implementations\&.
+These rules are generated by the solver to keep it from running into the same problem multiple times when it has to backtrack\&. They are the main reason why a sat solver is faster than other dependency solver implementations\&.
.RE
.sp
Special dependency rule types:
.PP
-\fBSOLVER_RULE_RPM_NOT_INSTALLABLE\fR
+\fBSOLVER_RULE_PKG_NOT_INSTALLABLE\fR
.RS 4
This rule was added to prevent the installation of a package of an architecture that does not work on the system\&.
.RE
.PP
-\fBSOLVER_RULE_RPM_NOTHING_PROVIDES_DEP\fR
+\fBSOLVER_RULE_PKG_NOTHING_PROVIDES_DEP\fR
.RS 4
-The package contanis a required dependency which was not provided by any package\&.
+The package contains a required dependency which was not provided by any package\&.
.RE
.PP
-\fBSOLVER_RULE_RPM_PACKAGE_REQUIRES\fR
+\fBSOLVER_RULE_PKG_REQUIRES\fR
.RS 4
-Similar to SOLVER_RULE_RPM_NOTHING_PROVIDES_DEP, but in this case some packages provided the dependency but none of them could be installed due to other dependency issues\&.
+Similar to SOLVER_RULE_PKG_NOTHING_PROVIDES_DEP, but in this case some packages provided the dependency but none of them could be installed due to other dependency issues\&.
.RE
.PP
-\fBSOLVER_RULE_RPM_SELF_CONFLICT\fR
+\fBSOLVER_RULE_PKG_SELF_CONFLICT\fR
.RS 4
The package conflicts with itself\&. This is not allowed by older rpm versions\&.
.RE
.PP
-\fBSOLVER_RULE_RPM_PACKAGE_CONFLICT\fR
+\fBSOLVER_RULE_PKG_CONFLICTS\fR
.RS 4
To fulfill the dependencies two packages need to be installed, but one of the packages contains a conflict with the other one\&.
.RE
.PP
-\fBSOLVER_RULE_RPM_SAME_NAME\fR
+\fBSOLVER_RULE_PKG_SAME_NAME\fR
.RS 4
The dependencies can only be fulfilled by multiple versions of a package, but installing multiple versions of the same package is not allowed\&.
.RE
.PP
-\fBSOLVER_RULE_RPM_PACKAGE_OBSOLETES\fR
+\fBSOLVER_RULE_PKG_OBSOLETES\fR
.RS 4
To fulfill the dependencies two packages need to be installed, but one of the packages obsoletes the other one\&.
.RE
.PP
-\fBSOLVER_RULE_RPM_IMPLICIT_OBSOLETES\fR
+\fBSOLVER_RULE_PKG_IMPLICIT_OBSOLETES\fR
.RS 4
To fulfill the dependencies two packages need to be installed, but one of the packages has provides a dependency that is obsoleted by the other one\&. See the POOL_FLAG_IMPLICITOBSOLETEUSESPROVIDES flag\&.
.RE
.PP
-\fBSOLVER_RULE_RPM_INSTALLEDPKG_OBSOLETES\fR
+\fBSOLVER_RULE_PKG_INSTALLED_OBSOLETES\fR
.RS 4
To fulfill the dependencies a package needs to be installed that is obsoleted by an installed package\&. See the POOL_FLAG_NOINSTALLEDOBSOLETES flag\&.
.RE
.PP
\fBPOLICY_ILLEGAL_NAMECHANGE\fR
.RS 4
-The solver ask for permission before replacing an installed packages with a packge that has a different name\&.
+The solver ask for permission before replacing an installed packages with a package that has a different name\&.
.RE
.sp
Solution element type constants
.RS 4
The problem can be solved by allowing to replace the package with some other package that has a different name\&.
.RE
+.sp
+Reason constants
+.PP
+\fBSOLVER_REASON_UNRELATED\fR
+.RS 4
+The package status did not change as it was not related to any job\&.
+.RE
+.PP
+\fBSOLVER_REASON_UNIT_RULE\fR
+.RS 4
+The package was installed/erased/kept because of a unit rule, i\&.e\&. a rule where all literals but one were false\&.
+.RE
+.PP
+\fBSOLVER_REASON_KEEP_INSTALLED\fR
+.RS 4
+The package was chosen when trying to keep as many packages installed as possible\&.
+.RE
+.PP
+\fBSOLVER_REASON_RESOLVE_JOB\fR
+.RS 4
+The decision happened to fulfill a job rule\&.
+.RE
+.PP
+\fBSOLVER_REASON_UPDATE_INSTALLED\fR
+.RS 4
+The decision happened to fulfill a package update request\&.
+.RE
+.PP
+\fBSOLVER_REASON_CLEANDEPS_ERASE\fR
+.RS 4
+The package was erased when cleaning up dependencies from other erased packages\&.
+.RE
+.PP
+\fBSOLVER_REASON_RESOLVE\fR
+.RS 4
+The package was installed to fulfill package dependencies\&.
+.RE
+.PP
+\fBSOLVER_REASON_WEAKDEP\fR
+.RS 4
+The package was installed because of a weak dependency (Recommends or Supplements)\&.
+.RE
+.PP
+\fBSOLVER_REASON_RESOLVE_ORPHAN\fR
+.RS 4
+The decision about the package was made when deciding the fate of orphaned packages\&.
+.RE
+.PP
+\fBSOLVER_REASON_RECOMMENDED\fR
+.RS 4
+This is a special case of SOLVER_REASON_WEAKDEP\&.
+.RE
+.PP
+\fBSOLVER_REASON_SUPPLEMENTED\fR
+.RS 4
+This is a special case of SOLVER_REASON_WEAKDEP\&.
+.RE
.SS "ATTRIBUTES"
.sp
.if n \{\
.\}
.nf
\fBPool *pool;\fR /* read only */
-\fI$job\fR\fB\->{\*(Aqpool\*(Aq}\fR
+\fI$job\fR\fB\->{pool}\fR
\fId\fR\fB\&.pool\fR
\fId\fR\fB\&.pool\fR
.fi
.\}
.nf
\fBint set_flag(int\fR \fIflag\fR\fB, int\fR \fIvalue\fR\fB)\fR
-my \fI$oldvalue\fR \fB=\fR \fI$pool\fR\fB\->set_flag(\fR\fI$flag\fR\fB,\fR \fI$value\fR\fB)\fR;
-\fIoldvalue\fR \fB=\fR \fIpool\fR\fB\&.set_flag(\fR\fIflag\fR\fB,\fR \fIvalue\fR\fB)\fR
-\fIoldvalue\fR \fB=\fR \fIpool\fR\fB\&.set_flag(\fR\fIflag\fR\fB,\fR \fIvalue\fR\fB)\fR
+my \fI$oldvalue\fR \fB=\fR \fI$solver\fR\fB\->set_flag(\fR\fI$flag\fR\fB,\fR \fI$value\fR\fB)\fR;
+\fIoldvalue\fR \fB=\fR \fIsolver\fR\fB\&.set_flag(\fR\fIflag\fR\fB,\fR \fIvalue\fR\fB)\fR
+\fIoldvalue\fR \fB=\fR \fIsolver\fR\fB\&.set_flag(\fR\fIflag\fR\fB,\fR \fIvalue\fR\fB)\fR
.fi
.if n \{\
.RE
.\}
.nf
\fBint get_flag(int\fR \fIflag\fR\fB)\fR
-my \fI$value\fR \fB=\fR \fI$pool\fR\fB\->get_flag(\fR\fI$flag\fR\fB)\fR;
-\fIvalue\fR \fB=\fR \fIpool\fR\fB\&.get_flag(\fR\fIflag\fR\fB)\fR
-\fIvalue\fR \fB=\fR \fIpool\fR\fB\&.get_flag(\fR\fIflag\fR\fB)\fR
+my \fI$value\fR \fB=\fR \fI$solver\fR\fB\->get_flag(\fR\fI$flag\fR\fB)\fR;
+\fIvalue\fR \fB=\fR \fIsolver\fR\fB\&.get_flag(\fR\fIflag\fR\fB)\fR
+\fIvalue\fR \fB=\fR \fIsolver\fR\fB\&.get_flag(\fR\fIflag\fR\fB)\fR
.fi
.if n \{\
.RE
.RS 4
.\}
.nf
-\fBProblem **solve(Job *\fR\fIjobs\fR\fB)\fR
+\fBProblem *solve(Job *\fR\fIjobs\fR\fB)\fR
my \fI@problems\fR \fB=\fR \fI$solver\fR\fB\->solve(\e\fR\fI@jobs\fR\fB)\fR;
\fIproblems\fR \fB=\fR \fIsolver\fR\fB\&.solve(\fR\fIjobs\fR\fB)\fR
\fIproblems\fR \fB=\fR \fIsolver\fR\fB\&.solve(\fR\fIjobs\fR\fB)\fR
.RS 4
.\}
.nf
-\fBTransaction *transaction()\fR
+\fBTransaction transaction()\fR
my \fI$trans\fR \fB=\fR \fI$solver\fR\fB\->transaction()\fR;
\fItrans\fR \fB=\fR \fIsolver\fR\fB\&.transaction()\fR
\fItrans\fR \fB=\fR \fIsolver\fR\fB\&.transaction()\fR
.\}
.sp
Return the transaction to implement the calculated package changes\&. A transaction is available even if problems were found, this is useful for interactive user interfaces that show both the job result and the problems\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBint\fR \fIreason\fR \fB= describe_decision(Solvable *\fR\fIs\fR\fB, Rule *\fR\fIOUTPUT\fR\fB)\fR
+my \fB(\fR\fI$reason\fR\fB,\fR \fI$rule\fR\fB) =\fR \fI$solver\fR\fB\->describe_decision(\fR\fI$solvable\fR\fB)\fR;
+\fB(\fR\fIreason\fR\fB,\fR \fIrule\fR\fB) =\fR \fIsolver\fR\fB\&.describe_decision(\fR\fIsolvable\fR\fB)\fR
+\fB(\fR\fIreason\fR\fB,\fR \fIrule\fR\fB) =\fR \fIsolver\fR\fB\&.describe_decision(\fR\fIsolvable\fR\fB)\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Return the reason why a specific solvable was installed or erased\&. For most of the reasons the rule that triggered the decision is also returned\&.
.SH "THE PROBLEM CLASS"
.sp
Problems are the way of the solver to interact with the user\&. You can simply list all problems and terminate your program, but a better way is to present solutions to the user and let him pick the ones he likes\&.
.\}
.nf
\fBSolver *solv;\fR /* read only */
-\fI$problem\fR\fB\->{\*(Aqsolv\*(Aq}\fR
+\fI$problem\fR\fB\->{solv}\fR
\fIproblem\fR\fB\&.solv\fR
\fIproblem\fR\fB\&.solv\fR
.fi
.\}
.nf
\fBId id;\fR /* read only */
-\fI$problem\fR\fB\->{\*(Aqid\*(Aq}\fR
+\fI$problem\fR\fB\->{id}\fR
\fIproblem\fR\fB\&.id\fR
\fIproblem\fR\fB\&.id\fR
.fi
.RS 4
.\}
.nf
-\fBRule *findproblemrule()\fR
+\fBRule findproblemrule()\fR
my \fI$probrule\fR \fB=\fR \fI$problem\fR\fB\->findproblemrule()\fR;
\fIprobrule\fR \fB=\fR \fIproblem\fR\fB\&.findproblemrule()\fR
\fIprobrule\fR \fB=\fR \fIproblem\fR\fB\&.findproblemrule()\fR
.RE
.\}
.sp
-Return the rule that caused the problem\&. Of cource in most situations there is no single responsible rule, but many rules that interconnect with each created the problem\&. Nevertheless, the solver uses some heuristic approch to find a rule that somewhat describes the problem best to the user\&.
+Return the rule that caused the problem\&. Of course in most situations there is no single responsible rule, but many rules that interconnect with each created the problem\&. Nevertheless, the solver uses some heuristic approach to find a rule that somewhat describes the problem best to the user\&.
.sp
.if n \{\
.RS 4
.\}
.nf
-\fBRule **findallproblemrules(bool\fR \fIunfiltered\fR \fB= 0)\fR
+\fBRule *findallproblemrules(bool\fR \fIunfiltered\fR \fB= 0)\fR
my \fI@probrules\fR \fB=\fR \fI$problem\fR\fB\->findallproblemrules()\fR;
\fIprobrules\fR \fB=\fR \fIproblem\fR\fB\&.findallproblemrule()\fR
\fIprobrules\fR \fB=\fR \fIproblem\fR\fB\&.findallproblemrule()\fR
.RS 4
.\}
.nf
-\fBSolutions **solutions()\fR
+\fBSolution *solutions()\fR
my \fI@solutions\fR \fB=\fR \fI$problem\fR\fB\->solutions()\fR;
\fIsolutions\fR \fB=\fR \fIproblem\fR\fB\&.solutions()\fR
\fIsolutions\fR \fB=\fR \fIproblem\fR\fB\&.solutions()\fR
.\}
.sp
Return the number of solutions without creating solution objects\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fB<stringification>\fR
+my \fI$str\fR \fB=\fR \fI$problem\fR\fB\->str\fR;
+\fIstr\fR \fB= str(\fR\fIproblem\fR\fB)\fR
+\fIstr\fR \fB=\fR \fIproblem\fR\fB\&.to_s\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Return a string describing the problem\&. This is a convenience function, it is a shorthand for calling findproblemrule(), then ruleinfo() on the problem rule and problemstr() on the ruleinfo object\&.
.SH "THE RULE CLASS"
.sp
Rules are the basic block of sat solving\&. Each package dependency gets translated into one or multiple rules\&.
.\}
.nf
\fBSolver *solv;\fR /* read only */
-\fI$rule\fR\fB\->{\*(Aqsolv\*(Aq}\fR
+\fI$rule\fR\fB\->{solv}\fR
\fIrule\fR\fB\&.solv\fR
\fIrule\fR\fB\&.solv\fR
.fi
.\}
.nf
\fBId id;\fR /* read only */
-\fI$rule\fR\fB\->{\*(Aqid\*(Aq}\fR
+\fI$rule\fR\fB\->{id}\fR
\fIrule\fR\fB\&.id\fR
\fIrule\fR\fB\&.id\fR
.fi
.\}
.nf
\fBint type;\fR /* read only */
-\fI$rule\fR\fB\->{\*(Aqtype\*(Aq}\fR
+\fI$rule\fR\fB\->{type}\fR
\fIrule\fR\fB\&.type\fR
\fIrule\fR\fB\&.type\fR
.fi
.RS 4
.\}
.nf
-\fBRuleinfo *info()\fR
+\fBRuleinfo info()\fR
my \fI$ruleinfo\fR \fB=\fR \fI$rule\fR\fB\->info()\fR;
\fIruleinfo\fR \fB=\fR \fIrule\fR\fB\&.info()\fR
\fIruleinfo\fR \fB=\fR \fIrule\fR\fB\&.info()\fR
.RS 4
.\}
.nf
-\fBRuleinfo **allinfos()\fR
+\fBRuleinfo *allinfos()\fR
my \fI@ruleinfos\fR \fB=\fR \fI$rule\fR\fB\->allinfos()\fR;
\fIruleinfos\fR \fB=\fR \fIrule\fR\fB\&.allinfos()\fR
\fIruleinfos\fR \fB=\fR \fIrule\fR\fB\&.allinfos()\fR
.\}
.nf
\fBSolver *solv;\fR /* read only */
-\fI$ruleinfo\fR\fB\->{\*(Aqsolv\*(Aq}\fR
+\fI$ruleinfo\fR\fB\->{solv}\fR
\fIruleinfo\fR\fB\&.solv\fR
\fIruleinfo\fR\fB\&.solv\fR
.fi
.\}
.nf
\fBint type;\fR /* read only */
-\fI$ruleinfo\fR\fB\->{\*(Aqtype\*(Aq}\fR
+\fI$ruleinfo\fR\fB\->{type}\fR
\fIruleinfo\fR\fB\&.type\fR
\fIruleinfo\fR\fB\&.type\fR
.fi
.\}
.nf
\fBDep *dep;\fR /* read only */
-\fI$ruleinfo\fR\fB\->{\*(Aqdep\*(Aq}\fR
+\fI$ruleinfo\fR\fB\->{dep}\fR
\fIruleinfo\fR\fB\&.dep\fR
\fIruleinfo\fR\fB\&.dep\fR
.fi
.\}
.nf
\fBSolvable *solvable;\fR /* read only */
-\fI$ruleinfo\fR\fB\->{\*(Aqsolvable\*(Aq}\fR
+\fI$ruleinfo\fR\fB\->{solvable}\fR
\fIruleinfo\fR\fB\&.solvable\fR
\fIruleinfo\fR\fB\&.solvable\fR
.fi
.\}
.nf
\fBSolvable *othersolvable;\fR /* read only */
-\fI$ruleinfo\fR\fB\->{\*(Aqothersolvable\*(Aq}\fR
+\fI$ruleinfo\fR\fB\->{othersolvable}\fR
\fIruleinfo\fR\fB\&.othersolvable\fR
\fIruleinfo\fR\fB\&.othersolvable\fR
.fi
.\}
.nf
\fBSolver *solv;\fR /* read only */
-\fI$solution\fR\fB\->{\*(Aqsolv\*(Aq}\fR
+\fI$solution\fR\fB\->{solv}\fR
\fIsolution\fR\fB\&.solv\fR
\fIsolution\fR\fB\&.solv\fR
.fi
.\}
.nf
\fBId problemid;\fR /* read only */
-\fI$solution\fR\fB\->{\*(Aqproblemid\*(Aq}\fR
+\fI$solution\fR\fB\->{problemid}\fR
\fIsolution\fR\fB\&.problemid\fR
\fIsolution\fR\fB\&.problemid\fR
.fi
.\}
.nf
\fBId id;\fR /* read only */
-\fI$solution\fR\fB\->{\*(Aqid\*(Aq}\fR
+\fI$solution\fR\fB\->{id}\fR
\fIsolution\fR\fB\&.id\fR
\fIsolution\fR\fB\&.id\fR
.fi
.RS 4
.\}
.nf
-\fBSolutionelement **elements(bool\fR \fIexpandreplaces\fR \fB= 0)\fR
+\fBSolutionelement *elements(bool\fR \fIexpandreplaces\fR \fB= 0)\fR
my \fI@solutionelements\fR \fB=\fR \fI$solution\fR\fB\->elements()\fR;
\fIsolutionelements\fR \fB=\fR \fIsolution\fR\fB\&.elements()\fR
\fIsolutionelements\fR \fB=\fR \fIsolution\fR\fB\&.elements()\fR
.RE
.\}
.sp
-Return an array containing the elements describing what neeeds to be done to implement the specific solution\&. If expandreplaces is true, elements of type SOLVER_SOLUTION_REPLACE will be replaced by one or more elements replace elements describing the policy mismatches\&.
+Return an array containing the elements describing what needs to be done to implement the specific solution\&. If expandreplaces is true, elements of type SOLVER_SOLUTION_REPLACE will be replaced by one or more elements replace elements describing the policy mismatches\&.
.sp
.if n \{\
.RS 4
.\}
.nf
\fBSolver *solv;\fR /* read only */
-\fI$solutionelement\fR\fB\->{\*(Aqsolv\*(Aq}\fR
+\fI$solutionelement\fR\fB\->{solv}\fR
\fIsolutionelement\fR\fB\&.solv\fR
\fIsolutionelement\fR\fB\&.solv\fR
.fi
.\}
.nf
\fBId problemid;\fR /* read only */
-\fI$solutionelement\fR\fB\->{\*(Aqproblemid\*(Aq}\fR
+\fI$solutionelement\fR\fB\->{problemid}\fR
\fIsolutionelement\fR\fB\&.problemid\fR
\fIsolutionelement\fR\fB\&.problemid\fR
.fi
.\}
.nf
\fBId solutionid;\fR /* read only */
-\fI$solutionelement\fR\fB\->{\*(Aqsolutionid\*(Aq}\fR
+\fI$solutionelement\fR\fB\->{solutionid}\fR
\fIsolutionelement\fR\fB\&.solutionid\fR
\fIsolutionelement\fR\fB\&.solutionid\fR
.fi
.\}
.nf
\fBId id;\fR /* read only */
-\fI$solutionelement\fR\fB\->{\*(Aqid\*(Aq}\fR
+\fI$solutionelement\fR\fB\->{id}\fR
\fIsolutionelement\fR\fB\&.id\fR
\fIsolutionelement\fR\fB\&.id\fR
.fi
.\}
.nf
\fBId type;\fR /* read only */
-\fI$solutionelement\fR\fB\->{\*(Aqtype\*(Aq}\fR
+\fI$solutionelement\fR\fB\->{type}\fR
\fIsolutionelement\fR\fB\&.type\fR
\fIsolutionelement\fR\fB\&.type\fR
.fi
.\}
.nf
\fBSolvable *solvable;\fR /* read only */
-\fI$solutionelement\fR\fB\->{\*(Aqsolvable\*(Aq}\fR
+\fI$solutionelement\fR\fB\->{solvable}\fR
\fIsolutionelement\fR\fB\&.solvable\fR
\fIsolutionelement\fR\fB\&.solvable\fR
.fi
.\}
.nf
\fBSolvable *replacement;\fR /* read only */
-\fI$solutionelement\fR\fB\->{\*(Aqreplacement\*(Aq}\fR
+\fI$solutionelement\fR\fB\->{replacement}\fR
\fIsolutionelement\fR\fB\&.replacement\fR
\fIsolutionelement\fR\fB\&.replacement\fR
.fi
.\}
.nf
\fBint jobidx;\fR /* read only */
-\fI$solutionelement\fR\fB\->{\*(Aqjobidx\*(Aq}\fR
+\fI$solutionelement\fR\fB\->{jobidx}\fR
\fIsolutionelement\fR\fB\&.jobidx\fR
\fIsolutionelement\fR\fB\&.jobidx\fR
.fi
.RS 4
.\}
.nf
-\fBSolutionelement **replaceelements()\fR
+\fBSolutionelement *replaceelements()\fR
my \fI@solutionelements\fR \fB=\fR \fI$solutionelement\fR\fB\->replaceelements()\fR;
\fIsolutionelements\fR \fB=\fR \fIsolutionelement\fR\fB\&.replaceelements()\fR
\fIsolutionelements\fR \fB=\fR \fIsolutionelement\fR\fB\&.replaceelements()\fR
.RS 4
.\}
.nf
-\fBJob *Job()\fR
+\fBJob Job()\fR
my \fI$job\fR \fB=\fR \fI$solutionelement\fR\fB\->Job()\fR;
\fIillegal\fR \fB=\fR \fIsolutionelement\fR\fB\&.Job()\fR
\fIillegal\fR \fB=\fR \fIsolutionelement\fR\fB\&.Job()\fR
.sp
A string describing the change the solution element consists of\&.
.SH "THE TRANSACTION CLASS"
+.sp
+Transactions describe the output of a solver run\&. A transaction contains a number of transaction elements, each either the installation of a new package or the removal of an already installed package\&. The Transaction class supports a classify() method that puts the elements into different groups so that a transaction can be presented to the user in a meaningful way\&.
.SS "CONSTANTS"
.sp
Transaction element types, both active and passive
.PP
\fBSOLVER_TRANSACTION_INSTALL\fR
.RS 4
-This element installes a package\&.
+This element installs a package\&.
.RE
.PP
\fBSOLVER_TRANSACTION_ERASE\fR
.PP
\fBSOLVER_TRANSACTION_MULTIREINSTALL\fR
.RS 4
-This element reinstalls a installed package keeping the other versions installed\&.
+This element reinstalls an installed package keeping the other versions installed\&.
.RE
.sp
Transaction element types, active view
.PP
\fBSOLVER_TRANSACTION_DOWNGRADE\fR
.RS 4
-This element installs a older version of an installed package\&.
+This element installs an older version of an installed package\&.
.RE
.PP
\fBSOLVER_TRANSACTION_OBSOLETES\fR
.\}
.nf
\fBPool *pool;\fR /* read only */
-\fI$trans\fR\fB\->{\*(Aqpool\*(Aq}\fR
+\fI$trans\fR\fB\->{pool}\fR
\fItrans\fR\fB\&.pool\fR
\fItrans\fR\fB\&.pool\fR
.fi
.RS 4
.\}
.nf
-\fBSolvable **newpackages()\fR;
-my \fI@newsolvables\fR \fB=\fR \fI$trans\fR\fB\->newpackages()\fR;
-\fInewsolvables\fR \fB=\fR \fItrans\fR\fB\&.newpackages()\fR
-\fInewsolvables\fR \fB=\fR \fItrans\fR\fB\&.newpackages()\fR
+\fBSolvable *newsolvables()\fR;
+my \fI@newsolvables\fR \fB=\fR \fI$trans\fR\fB\->newsolvables()\fR;
+\fInewsolvables\fR \fB=\fR \fItrans\fR\fB\&.newsolvables()\fR
+\fInewsolvables\fR \fB=\fR \fItrans\fR\fB\&.newsolvables()\fR
.fi
.if n \{\
.RE
.\}
.sp
-Return all packages that are to be installed by the transaction\&. This are the packages that need to be downloaded from the repositories\&.
+Return all packages that are to be installed by the transaction\&. These are the packages that need to be downloaded from the repositories\&.
.sp
.if n \{\
.RS 4
.\}
.nf
-\fBSolvable **keptpackages()\fR;
-my \fI@keptsolvables\fR \fB=\fR \fI$trans\fR\fB\->keptpackages()\fR;
-\fIkeptsolvables\fR \fB=\fR \fItrans\fR\fB\&.keptpackages()\fR
-\fIkeptsolvables\fR \fB=\fR \fItrans\fR\fB\&.keptpackages()\fR
+\fBSolvable *keptsolvables()\fR;
+my \fI@keptsolvables\fR \fB=\fR \fI$trans\fR\fB\->keptsolvables()\fR;
+\fIkeptsolvables\fR \fB=\fR \fItrans\fR\fB\&.keptsolvables()\fR
+\fIkeptsolvables\fR \fB=\fR \fItrans\fR\fB\&.keptsolvables()\fR
.fi
.if n \{\
.RE
.RS 4
.\}
.nf
-\fBSolvable **steps()\fR;
+\fBSolvable *steps()\fR;
my \fI@steps\fR \fB=\fR \fI$trans\fR\fB\->steps()\fR;
\fIsteps\fR \fB=\fR \fItrans\fR\fB\&.steps()\fR
\fIsteps\fR \fB=\fR \fItrans\fR\fB\&.steps()\fR
.RS 4
.\}
.nf
-\fBTransactionClass **classify(int\fR \fImode\fR \fB= 0)\fR
+\fBTransactionClass *classify(int\fR \fImode\fR \fB= 0)\fR
my \fI@classes\fR \fB=\fR \fI$trans\fR\fB\->classify()\fR;
\fIclasses\fR \fB=\fR \fItrans\fR\fB\&.classify()\fR
\fIclasses\fR \fB=\fR \fItrans\fR\fB\&.classify()\fR
.RS 4
.\}
.nf
-\fBSolvable *othersolvable(Solvable *\fR\fIsolvable\fR\fB)\fR;
+\fBSolvable othersolvable(Solvable *\fR\fIsolvable\fR\fB)\fR;
my \fI$other\fR \fB=\fR \fI$trans\fR\fB\->othersolvable(\fR\fI$solvable\fR\fB)\fR;
\fIother\fR \fB=\fR \fItrans\fR\fB\&.othersolvable(\fR\fIsolvable\fR\fB)\fR
\fIother\fR \fB=\fR \fItrans\fR\fB\&.othersolvable(\fR\fIsolvable\fR\fB)\fR
.RS 4
.\}
.nf
-\fBSolvable **allothersolvables(Solvable *\fR\fIsolvable\fR\fB)\fR;
+\fBSolvable *allothersolvables(Solvable *\fR\fIsolvable\fR\fB)\fR;
my \fI@others\fR \fB=\fR \fI$trans\fR\fB\->allothersolvables(\fR\fI$solvable\fR\fB)\fR;
\fIothers\fR \fB=\fR \fItrans\fR\fB\&.allothersolvables(\fR\fIsolvable\fR\fB)\fR
\fIothers\fR \fB=\fR \fItrans\fR\fB\&.allothersolvables(\fR\fIsolvable\fR\fB)\fR
.RE
.\}
.sp
-Order the steps in the transactions so that dependant packages are updated before packages that depend on them\&. For rpm, you can also use rpmlib\(cqs ordering functionality, debian\(cqs dpkg does not provide a way to order a transaction\&.
+Order the steps in the transactions so that dependent packages are updated before packages that depend on them\&. For rpm, you can also use rpmlib\(cqs ordering functionality, debian\(cqs dpkg does not provide a way to order a transaction\&.
.SS "ACTIVE/PASSIVE VIEW"
.sp
-Active view list what new packages get installed, while passive view shows what happens to the installed packages\&. Most often there\(cqs not much difference between the two modes, but things get interesting of multiple package get replaced by one new package\&. Say you have installed package A\-1\-1 and B\-1\-1, and now install A\-2\-1 with has a new dependency that obsoletes B\&. The transaction elements will be
+Active view lists what new packages get installed, while passive view shows what happens to the installed packages\&. Most often there\(cqs not much difference between the two modes, but things get interesting if multiple packages get replaced by one new package\&. Say you have installed packages A\-1\-1 and B\-1\-1, and now install A\-2\-1 which has a new dependency that obsoletes B\&. The transaction elements will be
.sp
.if n \{\
.RS 4
.RE
.\}
.sp
-in active mode\&. If the mode containes SOLVER_TRANSACTION_SHOW_ALL, the passive mode list will be unchanged but the active mode list will just contain A\-2\-1\&.
+in active mode\&. If the mode contains SOLVER_TRANSACTION_SHOW_ALL, the passive mode list will be unchanged but the active mode list will just contain A\-2\-1\&.
.SH "THE TRANSACTIONCLASS CLASS"
.sp
Objects of this type are returned by the classify() Transaction method\&.
.\}
.nf
\fBTransaction *transaction;\fR /* read only */
-\fI$class\fR\fB\->{\*(Aqtransaction\*(Aq}\fR
+\fI$class\fR\fB\->{transaction}\fR
\fIclass\fR\fB\&.transaction\fR
\fIclass\fR\fB\&.transaction\fR
.fi
.\}
.nf
\fBint type;\fR /* read only */
-\fI$class\fR\fB\->{\*(Aqtype\*(Aq}\fR
+\fI$class\fR\fB\->{type}\fR
\fIclass\fR\fB\&.type\fR
\fIclass\fR\fB\&.type\fR
.fi
.\}
.nf
\fBint count;\fR /* read only */
-\fI$class\fR\fB\->{\*(Aqcount\*(Aq}\fR
+\fI$class\fR\fB\->{count}\fR
\fIclass\fR\fB\&.count\fR
\fIclass\fR\fB\&.count\fR
.fi
.\}
.nf
\fBconst char *\fR\fIfromstr\fR;
-\fI$class\fR\fB\->{\*(Aqfromstr\*(Aq}\fR
+\fI$class\fR\fB\->{fromstr}\fR
\fIclass\fR\fB\&.fromstr\fR
\fIclass\fR\fB\&.fromstr\fR
.fi
.\}
.nf
\fBconst char *\fR\fItostr\fR;
-\fI$class\fR\fB\->{\*(Aqtostr\*(Aq}\fR
+\fI$class\fR\fB\->{tostr}\fR
\fIclass\fR\fB\&.tostr\fR
\fIclass\fR\fB\&.tostr\fR
.fi
.\}
.nf
\fBId\fR \fIfromid\fR;
-\fI$class\fR\fB\->{\*(Aqfromid\*(Aq}\fR
+\fI$class\fR\fB\->{fromid}\fR
\fIclass\fR\fB\&.fromid\fR
\fIclass\fR\fB\&.fromid\fR
.fi
.\}
.nf
\fBId\fR \fItoid\fR;
-\fI$class\fR\fB\->{\*(Aqtoid\*(Aq}\fR
+\fI$class\fR\fB\->{toid}\fR
\fIclass\fR\fB\&.toid\fR
\fIclass\fR\fB\&.toid\fR
.fi
.RS 4
.\}
.nf
-\fBChksum *Chksum(Id\fR \fItype\fR\fB)\fR
+\fBChksum Chksum(Id\fR \fItype\fR\fB)\fR
my \fI$chksum\fR \fB= solv::Chksum\->new(\fR\fI$type\fR\fB)\fR;
\fIchksum\fR \fB= solv\&.Chksum(\fR\fItype\fR\fB)\fR
\fIchksum\fR \fB= Solv::Chksum\&.new(\fR\fItype\fR\fB)\fR
.RS 4
.\}
.nf
-\fBChksum *Chksum(Id\fR \fItype\fR\fB, const char *\fR\fIhex\fR\fB)\fR
+\fBChksum Chksum(Id\fR \fItype\fR\fB, const char *\fR\fIhex\fR\fB)\fR
my \fI$chksum\fR \fB= solv::Chksum\->new(\fR\fI$type\fR\fB,\fR \fI$hex\fR\fB)\fR;
\fIchksum\fR \fB= solv\&.Chksum(\fR\fItype\fR\fB,\fR \fIhex\fR\fB)\fR
\fIchksum\fR \fB= Solv::Chksum\&.new(\fR\fItype\fR\fB,\fR \fIhex\fR\fB)\fR
.RE
.\}
.sp
-Create an already finalized checksum object\&.
+Create an already finalized checksum object from a hex string\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBChksum Chksum_from_bin(Id\fR \fItype\fR\fB, char *\fR\fIbin\fR\fB)\fR
+my \fI$chksum\fR \fB= solv::Chksum\->from_bin(\fR\fI$type\fR\fB,\fR \fI$bin\fR\fB)\fR;
+\fIchksum\fR \fB= solv\&.Chksum\&.from_bin(\fR\fItype\fR\fB,\fR \fIbin\fR\fB)\fR
+\fIchksum\fR \fB= Solv::Chksum\&.from_bin(\fR\fItype\fR\fB,\fR \fIbin\fR\fB)\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Create an already finalized checksum object from a binary checksum\&.
.SS "ATTRIBUTES"
.sp
.if n \{\
.\}
.nf
\fBId type;\fR /* read only */
-\fI$chksum\fR\fB\->{\*(Aqtype\*(Aq}\fR
+\fI$chksum\fR\fB\->{type}\fR
\fIchksum\fR\fB\&.type\fR
\fIchksum\fR\fB\&.type\fR
.fi
.RE
.\}
.sp
-Add a string to the checksum\&.
+Add a (binary) string to the checksum\&.
.sp
.if n \{\
.RS 4
.RS 4
.\}
.nf
+\fBconst char *typestr()\fR
+my \fI$typestr\fR \fB=\fR \fI$chksum\fR\fB\->typestr()\fR;
+\fItypestr\fR \fB=\fR \fIchksum\fR\fB\&.typestr\fR
+\fItypestr\fR \fB=\fR \fIchksum\fR\fB\&.typestr\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Return the type of the checksum as a string, e\&.g\&. "sha256"\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
\fB<equality>\fR
\fBif (\fR\fI$chksum1\fR \fB==\fR \fI$chksum2\fR\fB)\fR
\fBif\fR \fIchksum1\fR \fB==\fR \fIchksum2\fR\fB:\fR
.\}
.nf
\fB<stringification>\fR
-my \fI$str\fR \fB= "\fR\fI$chksum\fR\fB"\fR;
+my \fI$str\fR \fB=\fR \fI$chksum\fR\fB\->str\fR;
\fIstr\fR \fB= str(\fR\fIchksum\fR\fB)\fR
\fIstr\fR \fB=\fR \fIchksum\fR\fB\&.to_s\fR
.fi
.RE
.\}
.sp
-Create a file handle from the specified file descriptor\&. The path argument is only used to select the correct (de\-)compression algorithm, use an empty path if you want to make sure to read/write raw data\&.
+Create a file handle from the specified file descriptor\&. The path argument is only used to select the correct (de\-)compression algorithm, use an empty path if you want to make sure to read/write raw data\&. The file descriptor is dup()ed before the file handle is created\&.
.SS "METHODS"
.sp
.if n \{\
.RS 4
.\}
.nf
+\fBvoid cloexec(bool\fR \fIstate\fR\fB)\fR
+\fI$file\fR\fB\->cloexec(\fR\fI$state\fR\fB)\fR
+\fIfile\fR\fB\&.cloexec(\fR\fIstate\fR\fB)\fR
+\fIfile\fR\fB\&.cloexec(\fR\fIstate\fR\fB)\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Set the close\-on\-exec flag of the file descriptor\&. The xfopen function returns files with close\-on\-exec turned on, so if you want to pass a file to some other process you need to call cloexec(0) before calling exec\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
\fBint dup()\fR
my \fI$fileno\fR \fB=\fR \fI$file\fR\fB\->dup()\fR;
\fIfileno\fR \fB=\fR \fIfile\fR\fB\&.dup()\fR
.RE
.\}
.sp
-Close the file\&. This is needed for languages like Ruby, that do not destruct objects right after they are no longer referenced\&. In that case, it is good style to close open files so that the file descriptors are freed right away\&. Returns false if there was an error\&.
+Close the file\&. This is needed for languages like Ruby that do not destruct objects right after they are no longer referenced\&. In that case, it is good style to close open files so that the file descriptors are freed right away\&. Returns false if there was an error\&.
.SH "THE REPODATA CLASS"
.sp
-The Repodata stores attrinbutes for packages and the repository itself, each repository can have multiple repodata areas\&. You normally only need to directly access them if you implement lazy downloading of repository data\&. Repodata areas are created by calling the repository\(cqs add_repodata() method or by using repo_add methods without the REPO_REUSE_REPODATA or REPO_USE_LOADING flag\&.
+The Repodata stores attributes for packages and the repository itself, each repository can have multiple repodata areas\&. You normally only need to directly access them if you implement lazy downloading of repository data\&. Repodata areas are created by calling the repository\(cqs add_repodata() method or by using repo_add methods without the REPO_REUSE_REPODATA or REPO_USE_LOADING flag\&.
.SS "ATTRIBUTES"
.sp
.if n \{\
.\}
.nf
\fBRepo *repo;\fR /* read only */
-\fI$data\fR\fB\->{\*(Aqrepo\*(Aq}\fR
+\fI$data\fR\fB\->{repo}\fR
\fIdata\fR\fB\&.repo\fR
\fIdata\fR\fB\&.repo\fR
.fi
.\}
.nf
\fBId id;\fR /* read only */
-\fI$data\fR\fB\->{\*(Aqid\*(Aq}\fR
+\fI$data\fR\fB\->{id}\fR
\fIdata\fR\fB\&.id\fR
\fIdata\fR\fB\&.id\fR
.fi
.\}
.sp
The id of the repodata area\&. Repodata ids of different repositories overlap\&.
-.SS "METHODS ===="
+.SS "METHODS"
.sp
.if n \{\
.RS 4
.RS 4
.\}
.nf
-\fBChksum *lookup_checksum(Id\fR \fIsolvid\fR\fB, Id\fR \fIkeyname\fR\fB)\fR
+\fBChksum lookup_checksum(Id\fR \fIsolvid\fR\fB, Id\fR \fIkeyname\fR\fB)\fR
my \fI$chksum\fR \fB=\fR \fI$data\fR\fB\->lookup_checksum(\fR\fI$solvid\fR\fB,\fR \fI$keyname\fR\fB)\fR;
\fIchksum\fR \fB=\fR \fIdata\fR\fB\&.lookup_checksum(\fR\fIsolvid\fR\fB,\fR \fIkeyname\fR\fB)\fR
\fIchksum\fR \fB=\fR \fIdata\fR\fB\&.lookup_checksum(\fR\fIsolvid\fR\fB,\fR \fIkeyname\fR\fB)\fR
.RE
.\}
.sp
-Lookup functions\&. Return the data element stored in the specified solvable\&. The methods probably only make sense to retrive data from the special SOLVID_META solvid that stores repodata meta information\&.
+Lookup functions\&. Return the data element stored in the specified solvable\&. The methods probably only make sense to retrieve data from the special SOLVID_META solvid that stores repodata meta information\&.
.SS "DATA STORAGE METHODS"
.sp
.if n \{\
Data storage methods\&. Probably only useful to store data in the special SOLVID_META solvid that stores repodata meta information\&. Note that repodata areas can have their own Id pool (see the REPO_LOCALPOOL flag), so be careful if you need to store ids\&. Arrays are created by calling the add function for every element\&. A flexarray is an array of sub\-structures, call new_handle to create a new structure, use the handle as solvid to fill the structure with data and call add_flexarray to put the structure in an array\&.
.SH "THE DATAPOS CLASS"
.sp
-Datapos objects describe a specific position in the repository data area\&. Thus they are only valid until the repository is modified in some way\&. Datapos objects can be created by the pos() and parentpos() methods of a Datamatch object or by accesing the \(lqmeta\(rq attribute of a repository\&.
+Datapos objects describe a specific position in the repository data area\&. Thus they are only valid until the repository is modified in some way\&. Datapos objects can be created by the pos() and parentpos() methods of a Datamatch object or by accessing the \(lqmeta\(rq attribute of a repository\&.
.SS "ATTRIBUTES"
.sp
.if n \{\
.\}
.nf
\fBRepo *repo;\fR /* read only */
-\fI$data\fR\fB\->{\*(Aqrepo\*(Aq}\fR
+\fI$data\fR\fB\->{repo}\fR
\fIdata\fR\fB\&.repo\fR
\fIdata\fR\fB\&.repo\fR
.fi
.RS 4
.\}
.nf
-\fBQueue lookup_idarray(Id\fR \fIkeyname\fR\fB)\fR
+\fBId *lookup_idarray(Id\fR \fIkeyname\fR\fB)\fR
my \fI@ids\fR \fB=\fR \fI$datapos\fR\fB\->lookup_idarray(\fR\fI$keyname\fR\fB)\fR;
\fIids\fR \fB=\fR \fIdatapos\fR\fB\&.lookup_idarray(\fR\fIkeyname\fR\fB)\fR
\fIids\fR \fB=\fR \fIdatapos\fR\fB\&.lookup_idarray(\fR\fIkeyname\fR\fB)\fR
.RS 4
.\}
.nf
-\fBChksum *lookup_checksum(Id\fR \fIkeyname\fR\fB)\fR
+\fBChksum lookup_checksum(Id\fR \fIkeyname\fR\fB)\fR
my \fI$chksum\fR \fB=\fR \fI$datapos\fR\fB\->lookup_checksum(\fR\fI$keyname\fR\fB)\fR;
\fIchksum\fR \fB=\fR \fIdatapos\fR\fB\&.lookup_checksum(\fR\fIkeyname\fR\fB)\fR
\fIchksum\fR \fB=\fR \fIdatapos\fR\fB\&.lookup_checksum(\fR\fIkeyname\fR\fB)\fR
.\}
.sp
Lookup functions\&. Note that the returned Ids are always translated into the Ids of the global pool even if the repodata area contains its own pool\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBDataiterator Dataiterator(Id\fR \fIkeyname\fR\fB, const char *\fR\fImatch\fR \fB= 0, int\fR \fIflags\fR \fB= 0)\fR
+my \fI$di\fR \fB=\fR \fI$datapos\fR\fB\->Dataiterator(\fR\fI$keyname\fR\fB,\fR \fI$match\fR\fB,\fR \fI$flags\fR\fB)\fR;
+\fIdi\fR \fB=\fR \fIdatapos\fR\fB\&.Dataiterator(\fR\fIkeyname\fR\fB,\fR \fImatch\fR\fB,\fR \fIflags\fR\fB)\fR
+\fIdi\fR \fB=\fR \fIdatapos\fR\fB\&.Dataiterator(\fR\fIkeyname\fR\fB,\fR \fImatch\fR\fB,\fR \fIflags\fR\fB)\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\fBfor my\fR \fI$d\fR \fB(\fR\fI@$di\fR\fB)\fR
+\fBfor\fR \fId\fR \fBin\fR \fIdi\fR\fB:\fR
+\fBfor\fR \fId\fR \fBin\fR \fIdi\fR
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+Iterate over the matching data elements\&. See the Dataiterator class for more information\&.
.SH "AUTHOR"
.sp
Michael Schroeder <mls@suse\&.de>
projects / platform / upstream / libsolv.git / blobdiff