libzypp: zypp/target/rpm/librpmDb.cc Source File

libzypp 17.25.10

librpmDb.cc
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1 /*---------------------------------------------------------------------\
2 | ____ _ __ __ ___ |
3 | |__ / \ / / . \ . \ |
4 | / / \ V /| _/ _/ |
5 | / /__ | | | | | | |
6 | /_____||_| |_| |_| |
7 | |
8 \---------------------------------------------------------------------*/
12 #include "librpm.h"
13
14 #include <iostream>
15
16 #include <zypp/base/Logger.h>
17 #include <zypp/PathInfo.h>
18 #include <zypp/target/rpm/librpmDb.h>
19 #include <zypp/target/rpm/RpmHeader.h>
20 #include <zypp/target/rpm/RpmException.h>
21
22 #undef ZYPP_BASE_LOGGER_LOGGROUP
23 #define ZYPP_BASE_LOGGER_LOGGROUP "librpmDb"
24
25 using std::endl;
26
27 namespace zypp
28 {
29 namespace target
30 {
31 namespace rpm
32 {
34 //
35 // CLASS NAME : librpmDb::D
39 class librpmDb::D
40 {
41 D & operator=( const D & ); // NO ASSIGNMENT!
42 D ( const D & ); // NO COPY!
43 public:
44
45 const Pathname _root; // root directory for all operations
46 const Pathname _dbPath; // directory (below root) that contains the rpmdb
47 rpmts _ts; // transaction handle, includes database
48 shared_ptr<RpmException> _error; // database error
49
50 friend std::ostream & operator<<( std::ostream & str, const D & obj )
51 {
52 str << "{" << obj._error << "(" << obj._root << ")" << obj._dbPath << "}";
53 return str;
54 }
55
56 D( const Pathname & root_r, const Pathname & dbPath_r, bool readonly_r )
57 : _root ( root_r )
58 , _dbPath( dbPath_r )
59 , _ts ( 0 )
60 {
61 _error.reset();
62 // set %_dbpath macro
63 ::addMacro( NULL, "_dbpath", NULL, _dbPath.asString().c_str(), RMIL_CMDLINE );
64
65 _ts = ::rpmtsCreate();
66 ::rpmtsSetRootDir( _ts, _root.c_str() );
67
68 // open database (creates a missing one on the fly)
69 int res = ::rpmtsOpenDB( _ts, (readonly_r ? O_RDONLY : O_RDWR ));
70 if ( res )
71 {
72 ERR << "rpmdbOpen error(" << res << "): " << *this << endl;
73 _error = shared_ptr<RpmDbOpenException>(new RpmDbOpenException(_root, _dbPath));
74 rpmtsFree(_ts);
75 ZYPP_THROW(*_error);
76 return;
77 }
78
79 DBG << "DBACCESS " << *this << endl;
80 }
81
82 ~D()
83 {
84 if ( _ts )
85 {
86 ::rpmtsFree(_ts);
87 }
88 }
89 };
90
92
94 //
95 // CLASS NAME : librpmDb (ststic interface)
96 //
98
99 Pathname librpmDb::_defaultRoot { "/" };
100 Pathname librpmDb::_defaultDbPath; // set in dbAccess depending on suggestedDbPath below /root
101 Pathname librpmDb::_rpmDefaultDbPath; // set by globalInit
102 librpmDb::constPtr librpmDb::_defaultDb;
103 bool librpmDb::_dbBlocked = true;
104
106 //
107 //
108 // METHOD NAME : librpmDb::globalInit
109 // METHOD TYPE : bool
110 //
111 bool librpmDb::globalInit()
112 {
113 static bool initialized = false;
114
115 if ( initialized )
116 return true;
117
118 int rc = ::rpmReadConfigFiles( NULL, NULL );
119 if ( rc )
120 {
121 ERR << "rpmReadConfigFiles returned " << rc << endl;
122 return false;
123 }
124
125 initialized = true; // Necessary to be able to use exand().
126 _rpmDefaultDbPath = expand( "%{_dbpath}" );
127
128 if ( _rpmDefaultDbPath.empty() ) {
129 _rpmDefaultDbPath = "/usr/lib/sysimage/";
130 WAR << "Looks like rpm has no %{_dbpath} set!?! Assuming " << _rpmDefaultDbPath << endl;
131 }
132 MIL << "librpm init done: (_target:" << expand( "%{_target}" ) << ") (_dbpath:" << _rpmDefaultDbPath << ")" << endl;
133 return initialized;
134 }
135
137 //
138 //
139 // METHOD NAME : librpmDb::expand
140 // METHOD TYPE : std::string
141 //
142 std::string librpmDb::expand( const std::string & macro_r )
143 {
144 if ( ! globalInit() )
145 return macro_r; // unexpanded
146
147 char * val = ::rpmExpand( macro_r.c_str(), NULL );
148 if ( !val )
149 return "";
150
151 std::string ret( val );
152 free( val );
153 return ret;
154 }
155
157 //
158 //
159 // METHOD NAME : librpmDb::newLibrpmDb
160 // METHOD TYPE : librpmDb *
161 //
162 librpmDb * librpmDb::newLibrpmDb()
163 {
164 // initialize librpm
165 if ( ! globalInit() )
166 {
167 ZYPP_THROW(GlobalRpmInitException());
168 }
169
170 if ( _defaultDbPath.empty() ) // db_const_iterator access to /(default) without RpmDB/Tareget init.
171 _defaultDbPath = suggestedDbPath( _defaultRoot );
172
173 // open rpmdb
174 librpmDb * ret = 0;
175 try
176 {
177 ret = new librpmDb( _defaultRoot, _defaultDbPath, /*readonly*/true );
178 }
179 catch (const RpmException & excpt_r)
180 {
181 ZYPP_CAUGHT(excpt_r);
182 delete ret;
183 ret = 0;
184 ZYPP_RETHROW(excpt_r);
185 }
186 return ret;
187 }
188
189
190 Pathname librpmDb::suggestedDbPath( const Pathname & root_r )
191 {
192 if ( ! root_r.absolute() )
193 ZYPP_THROW(RpmInvalidRootException( root_r, "" ));
194
195 // initialize librpm (for _rpmDefaultDbPath)
196 if ( ! globalInit() )
197 ZYPP_THROW(GlobalRpmInitException());
198
199 if ( PathInfo( root_r ).isDir() ) {
200 // If a known dbpath exsists, we continue to use it
201 for ( auto p : { "/var/lib/rpm", "/usr/lib/sysimage/rpm" } ) {
202 if ( PathInfo( root_r/p, PathInfo::LSTAT ).isDir() ) {
203 MIL << "Suggest existing database at " << stringPath( root_r, p ) << endl;
204 return p;
205 }
206 }
207 }
208
209 MIL << "Suggest rpm _dbpath " << stringPath( root_r, _rpmDefaultDbPath ) << endl;
210 return _rpmDefaultDbPath;
211 }
212
214 //
215 //
216 // METHOD NAME : librpmDb::dbAccess
217 // METHOD TYPE : PMError
218 //
219 void librpmDb::dbAccess( const Pathname & root_r )
220 {
221 if ( _defaultDb )
222 {
223 // already accessing a database: switching is not allowed.
224 if ( _defaultRoot == root_r )
225 return;
226 else
227 ZYPP_THROW(RpmDbAlreadyOpenException(_defaultRoot, _defaultDbPath, root_r, _defaultDbPath));
228 }
229
230 // got no database: we could switch to a new one (even if blocked!)
231 _defaultDbPath = suggestedDbPath( root_r ); // also asserts root_r is absolute
232 _defaultRoot = root_r;
233
234 MIL << "Set new database location: " << stringPath( _defaultRoot, _defaultDbPath ) << endl;
235 return dbAccess();
236 }
237
239 //
240 //
241 // METHOD NAME : librpmDb::dbAccess
242 // METHOD TYPE : PMError
243 //
244 void librpmDb::dbAccess()
245 {
246 if ( _dbBlocked )
247 {
248 ZYPP_THROW(RpmAccessBlockedException(_defaultRoot, _defaultDbPath));
249 }
250
251 if ( !_defaultDb )
252 {
253 // get access
254 _defaultDb = newLibrpmDb();
255 }
256 }
257
259 //
260 //
261 // METHOD NAME : librpmDb::dbAccess
262 // METHOD TYPE : PMError
263 //
264 void librpmDb::dbAccess( librpmDb::constPtr & ptr_r )
265 {
266 ptr_r = nullptr;
267 dbAccess();
268 ptr_r = _defaultDb;
269 }
270
272 //
273 //
274 // METHOD NAME : librpmDb::dbRelease
275 // METHOD TYPE : unsigned
276 //
277 unsigned librpmDb::dbRelease( bool force_r )
278 {
279 if ( !_defaultDb )
280 {
281 return 0;
282 }
283
284 unsigned outstanding = _defaultDb->refCount() - 1; // refCount can't be 0
285
286 switch ( outstanding )
287 {
288 default:
289 if ( !force_r )
290 {
291 DBG << "dbRelease: keep access, outstanding " << outstanding << endl;
292 break;
293 }
294 // else fall through:
295 case 0:
296 DBG << "dbRelease: release" << (force_r && outstanding ? "(forced)" : "")
297 << ", outstanding " << outstanding << endl;
298
299 _defaultDb->_d._error = shared_ptr<RpmAccessBlockedException>(new RpmAccessBlockedException(_defaultDb->_d._root, _defaultDb->_d._dbPath));
300 // tag handle invalid
301 _defaultDb = 0;
302 break;
303 }
304
305 return outstanding;
306 }
307
309 //
310 //
311 // METHOD NAME : librpmDb::blockAccess
312 // METHOD TYPE : unsigned
313 //
314 unsigned librpmDb::blockAccess()
315 {
316 MIL << "Block access" << endl;
317 _dbBlocked = true;
318 return dbRelease( /*force*/true );
319 }
320
322 //
323 //
324 // METHOD NAME : librpmDb::unblockAccess
325 // METHOD TYPE : void
326 //
327 void librpmDb::unblockAccess()
328 {
329 MIL << "Unblock access" << endl;
330 _dbBlocked = false;
331 }
332
334 //
335 //
336 // METHOD NAME : librpmDb::dumpState
337 // METHOD TYPE : ostream &
338 //
339 std::ostream & librpmDb::dumpState( std::ostream & str )
340 {
341 if ( !_defaultDb )
342 {
343 return str << "[librpmDb " << (_dbBlocked?"BLOCKED":"CLOSED") << " " << stringPath( _defaultRoot, _defaultDbPath ) << "]";
344 }
345 return str << "[" << _defaultDb << "]";
346 }
347
349 //
350 // CLASS NAME : librpmDb (internal database handle interface (nonstatic))
351 //
353
355 //
356 //
357 // METHOD NAME : librpmDb::librpmDb
358 // METHOD TYPE : Constructor
359 //
360 // DESCRIPTION :
361 //
362 librpmDb::librpmDb( const Pathname & root_r, const Pathname & dbPath_r, bool readonly_r )
363 : _d( * new D( root_r, dbPath_r, readonly_r ) )
364 {}
365
367 //
368 //
369 // METHOD NAME : librpmDb::~librpmDb
370 // METHOD TYPE : Destructor
371 //
372 // DESCRIPTION :
373 //
374 librpmDb::~librpmDb()
375 {
376 delete &_d;
377 }
378
380 //
381 //
382 // METHOD NAME : librpmDb::unref_to
383 // METHOD TYPE : void
384 //
385 void librpmDb::unref_to( unsigned refCount_r ) const
386 {
387 if ( refCount_r == 1 )
388 {
389 dbRelease();
390 }
391 }
392
394 //
395 //
396 // METHOD NAME : librpmDb::root
397 // METHOD TYPE : const Pathname &
398 //
399 const Pathname & librpmDb::root() const
400 {
401 return _d._root;
402 }
403
405 //
406 //
407 // METHOD NAME : librpmDb::dbPath
408 // METHOD TYPE : const Pathname &
409 //
410 const Pathname & librpmDb::dbPath() const
411 {
412 return _d._dbPath;
413 }
414
416 //
417 //
418 // METHOD NAME : librpmDb::error
419 // METHOD TYPE : PMError
420 //
421 shared_ptr<RpmException> librpmDb::error() const
422 {
423 return _d._error;
424 }
425
427 //
428 //
429 // METHOD NAME : librpmDb::empty
430 // METHOD TYPE : bool
431 //
432 bool librpmDb::empty() const
433 {
434 return( valid() && ! *db_const_iterator( this ) );
435 }
436
438 //
439 //
440 // METHOD NAME : librpmDb::size
441 // METHOD TYPE : unsigned
442 //
443 unsigned librpmDb::size() const
444 {
445 unsigned count = 0;
446 if ( valid() )
447 {
448 db_const_iterator it( this );
449 for ( db_const_iterator it( this ); *it; ++it )
450 ++count;
451 }
452 return count;
453 }
454
456 //
457 //
458 // METHOD NAME : librpmDb::dont_call_it
459 // METHOD TYPE : void *
460 //
461 void * librpmDb::dont_call_it() const
462 {
463 return rpmtsGetRdb(_d._ts);
464 }
465
467 //
468 //
469 // METHOD NAME : librpmDb::dumpOn
470 // METHOD TYPE : ostream &
471 //
472 // DESCRIPTION :
473 //
474 std::ostream & librpmDb::dumpOn( std::ostream & str ) const
475 {
476 ReferenceCounted::dumpOn( str ) << _d;
477 return str;
478 }
479
481 //
482 // CLASS NAME : librpmDb::db_const_iterator::D
486 class librpmDb::db_const_iterator::D
487 {
488 D & operator=( const D & ); // NO ASSIGNMENT!
489 D ( const D & ); // NO COPY!
490 public:
491
492 librpmDb::constPtr _dbptr;
493 shared_ptr<RpmException> _dberr;
494
495 RpmHeader::constPtr _hptr;
496 rpmdbMatchIterator _mi;
497
498 D( librpmDb::constPtr dbptr_r )
499 : _dbptr( dbptr_r )
500 , _mi( 0 )
501 {
502 if ( !_dbptr )
503 {
504 try
505 {
506 librpmDb::dbAccess( _dbptr );
507 }
508 catch (const RpmException & excpt_r)
509 {
510 ZYPP_CAUGHT(excpt_r);
511 }
512 if ( !_dbptr )
513 {
514 WAR << "No database access: " << _dberr << endl;
515 }
516 }
517 else
518 {
519 destroy(); // Checks whether _dbptr still valid
520 }
521 }
522
523 ~D()
524 {
525 if ( _mi )
526 {
527 ::rpmdbFreeIterator( _mi );
528 }
529 }
530
535 bool create( int rpmtag, const void * keyp = NULL, size_t keylen = 0 )
536 {
537 destroy();
538 if ( ! _dbptr )
539 return false;
540 _mi = ::rpmtsInitIterator( _dbptr->_d._ts, rpmTag(rpmtag), keyp, keylen );
541 return _mi;
542 }
543
548 bool destroy()
549 {
550 if ( _mi )
551 {
552 _mi = ::rpmdbFreeIterator( _mi );
553 _hptr = 0;
554 }
555 if ( _dbptr && _dbptr->error() )
556 {
557 _dberr = _dbptr->error();
558 WAR << "Lost database access: " << _dberr << endl;
559 _dbptr = 0;
560 }
561 return false;
562 }
563
568 bool advance()
569 {
570 if ( !_mi )
571 return false;
572 Header h = ::rpmdbNextIterator( _mi );
573 if ( ! h )
574 {
575 destroy();
576 return false;
577 }
578 _hptr = new RpmHeader( h );
579 return true;
580 }
581
585 bool init( int rpmtag, const void * keyp = NULL, size_t keylen = 0 )
586 {
587 if ( ! create( rpmtag, keyp, keylen ) )
588 return false;
589 return advance();
590 }
591
596 bool set( int off_r )
597 {
598 if ( ! create( RPMDBI_PACKAGES ) )
599 return false;
600 #ifdef RPMFILEITERMAX // since rpm.4.12
601 ::rpmdbAppendIterator( _mi, (const unsigned *)&off_r, 1 );
602 #else
603 ::rpmdbAppendIterator( _mi, &off_r, 1 );
604 #endif
605 return advance();
606 }
607
608 unsigned offset()
609 {
610 return( _mi ? ::rpmdbGetIteratorOffset( _mi ) : 0 );
611 }
612
613 int size()
614 {
615 if ( !_mi )
616 return 0;
617 int ret = ::rpmdbGetIteratorCount( _mi );
618 return( ret ? ret : -1 ); // -1: sequential access
619 }
620 };
621
623
625 //
626 // CLASS NAME : librpmDb::Ptr::db_const_iterator
627 //
629
631 //
632 //
633 // METHOD NAME : librpmDb::db_const_iterator::db_iterator
634 // METHOD TYPE : Constructor
635 //
636 librpmDb::db_const_iterator::db_const_iterator( librpmDb::constPtr dbptr_r )
637 : _d( * new D( dbptr_r ) )
638 {
639 findAll();
640 }
641
643 //
644 //
645 // METHOD NAME : librpmDb::db_const_iterator::~db_const_iterator
646 // METHOD TYPE : Destructor
647 //
648 librpmDb::db_const_iterator::~db_const_iterator()
649 {
650 delete &_d;
651 }
652
654 //
655 //
656 // METHOD NAME : librpmDb::db_const_iterator::operator++
657 // METHOD TYPE : void
658 //
659 void librpmDb::db_const_iterator::operator++()
660 {
661 _d.advance();
662 }
663
665 //
666 //
667 // METHOD NAME : librpmDb::db_const_iterator::dbHdrNum
668 // METHOD TYPE : unsigned
669 //
670 unsigned librpmDb::db_const_iterator::dbHdrNum() const
671 {
672 return _d.offset();
673 }
674
676 //
677 //
678 // METHOD NAME : librpmDb::db_const_iterator::operator*
679 // METHOD TYPE : const RpmHeader::constPtr &
680 //
681 const RpmHeader::constPtr & librpmDb::db_const_iterator::operator*() const
682 {
683 return _d._hptr;
684 }
685
687 //
688 //
689 // METHOD NAME : librpmDb::db_const_iterator::dbError
690 // METHOD TYPE : PMError
691 //
692 shared_ptr<RpmException> librpmDb::db_const_iterator::dbError() const
693 {
694 if ( _d._dbptr )
695 return _d._dbptr->error();
696
697 return _d._dberr;
698 }
699
700 /******************************************************************
701 **
702 **
703 ** FUNCTION NAME : operator<<
704 ** FUNCTION TYPE : ostream &
705 */
706 std::ostream & operator<<( std::ostream & str, const librpmDb::db_const_iterator & obj )
707 {
708 str << "db_const_iterator(" << obj._d._dbptr
709 << " Size:" << obj._d.size()
710 << " HdrNum:" << obj._d.offset()
711 << ")";
712 return str;
713 }
714
716 //
717 //
718 // METHOD NAME : librpmDb::db_const_iterator::findAll
719 // METHOD TYPE : bool
720 //
721 bool librpmDb::db_const_iterator::findAll()
722 {
723 return _d.init( RPMDBI_PACKAGES );
724 }
725
727 //
728 //
729 // METHOD NAME : librpmDb::db_const_iterator::findByFile
730 // METHOD TYPE : bool
731 //
732 bool librpmDb::db_const_iterator::findByFile( const std::string & file_r )
733 {
734 return _d.init( RPMTAG_BASENAMES, file_r.c_str() );
735 }
736
738 //
739 //
740 // METHOD NAME : librpmDb::db_const_iterator::findByProvides
741 // METHOD TYPE : bool
742 //
743 bool librpmDb::db_const_iterator::findByProvides( const std::string & tag_r )
744 {
745 return _d.init( RPMTAG_PROVIDENAME, tag_r.c_str() );
746 }
747
749 //
750 //
751 // METHOD NAME : librpmDb::db_const_iterator::findByRequiredBy
752 // METHOD TYPE : bool
753 //
754 bool librpmDb::db_const_iterator::findByRequiredBy( const std::string & tag_r )
755 {
756 return _d.init( RPMTAG_REQUIRENAME, tag_r.c_str() );
757 }
758
760 //
761 //
762 // METHOD NAME : librpmDb::db_const_iterator::findByConflicts
763 // METHOD TYPE : bool
764 //
765 bool librpmDb::db_const_iterator::findByConflicts( const std::string & tag_r )
766 {
767 return _d.init( RPMTAG_CONFLICTNAME, tag_r.c_str() );
768 }
769
771 //
772 //
773 // METHOD NAME : librpmDb::findByName
774 // METHOD TYPE : bool
775 //
776 bool librpmDb::db_const_iterator::findByName( const std::string & name_r )
777 {
778 return _d.init( RPMTAG_NAME, name_r.c_str() );
779 }
780
782 //
783 //
784 // METHOD NAME : librpmDb::db_const_iterator::findPackage
785 // METHOD TYPE : bool
786 //
787 bool librpmDb::db_const_iterator::findPackage( const std::string & name_r )
788 {
789 if ( ! _d.init( RPMTAG_NAME, name_r.c_str() ) )
790 return false;
791
792 if ( _d.size() == 1 )
793 return true;
794
795 // check installtime on multiple entries
796 int match = 0;
797 time_t itime = 0;
798 for ( ; operator*(); operator++() )
799 {
800 if ( operator*()->tag_installtime() > itime )
801 {
802 match = _d.offset();
803 itime = operator*()->tag_installtime();
804 }
805 }
806
807 return _d.set( match );
808 }
809
811 //
812 //
813 // METHOD NAME : librpmDb::db_const_iterator::findPackage
814 // METHOD TYPE : bool
815 //
816 bool librpmDb::db_const_iterator::findPackage( const std::string & name_r, const Edition & ed_r )
817 {
818 if ( ! _d.init( RPMTAG_NAME, name_r.c_str() ) )
819 return false;
820
821 for ( ; operator*(); operator++() )
822 {
823 if ( ed_r == operator*()->tag_edition() )
824 {
825 int match = _d.offset();
826 return _d.set( match );
827 }
828 }
829
830 return _d.destroy();
831 }
832
834 //
835 //
836 // METHOD NAME : librpmDb::db_const_iterator::findPackage
837 // METHOD TYPE : bool
838 //
839 bool librpmDb::db_const_iterator::findPackage( const Package::constPtr & which_r )
840 {
841 if ( ! which_r )
842 return _d.destroy();
843
844 return findPackage( which_r->name(), which_r->edition() );
845 }
846
847 } // namespace rpm
848 } // namespace target
849 } // namespace zypp
ZYPP_RETHROW
#define ZYPP_RETHROW(EXCPT)
Drops a logline and rethrows, updating the CodeLocation.
Definition: Exception.h:400
ZYPP_CAUGHT
#define ZYPP_CAUGHT(EXCPT)
Drops a logline telling the Exception was caught (in order to handle it).
Definition: Exception.h:396
ZYPP_THROW
#define ZYPP_THROW(EXCPT)
Drops a logline and throws the Exception.
Definition: Exception.h:392
Logger.h
DBG
#define DBG
Definition: Logger.h:90
MIL
#define MIL
Definition: Logger.h:91
ERR
#define ERR
Definition: Logger.h:93
WAR
#define WAR
Definition: Logger.h:92
PathInfo.h
RpmException.h
RpmHeader.h
zypp::Edition
Edition represents [epoch:]version[-release]
Definition: Edition.h:61
zypp::Package::constPtr
TraitsType::constPtrType constPtr
Definition: Package.h:38
zypp::base::ReferenceCounted::operator<<
friend std::ostream & operator<<(std::ostream &str, const ReferenceCounted &obj)
Stream output via dumpOn.
zypp::filesystem::PathInfo
Wrapper class for ::stat/::lstat.
Definition: PathInfo.h:221
zypp::filesystem::PathInfo::LSTAT
@ LSTAT
Definition: PathInfo.h:226
zypp::filesystem::Pathname
Pathname.
Definition: Pathname.h:45
zypp::filesystem::Pathname::absolute
bool absolute() const
Test for an absolute path.
Definition: Pathname.h:116
zypp::filesystem::Pathname::asString
const std::string & asString() const
String representation.
Definition: Pathname.h:91
zypp::filesystem::Pathname::empty
bool empty() const
Test for an empty path.
Definition: Pathname.h:114
zypp::filesystem::Pathname::c_str
const char * c_str() const
String representation.
Definition: Pathname.h:110
zypp::target::rpm::GlobalRpmInitException
Definition: RpmException.h:58
zypp::target::rpm::RpmAccessBlockedException
Definition: RpmException.h:103
zypp::target::rpm::RpmDbAlreadyOpenException
Definition: RpmException.h:180
zypp::target::rpm::RpmDbOpenException
Definition: RpmException.h:162
zypp::target::rpm::RpmException
Just inherits Exception to separate media exceptions.
Definition: RpmException.h:38
zypp::target::rpm::RpmHeader
Wrapper class for rpm header struct.
Definition: RpmHeader.h:61
zypp::target::rpm::RpmHeader::constPtr
intrusive_ptr< const RpmHeader > constPtr
Definition: RpmHeader.h:64
zypp::target::rpm::RpmInvalidRootException
Definition: RpmException.h:73
zypp::target::rpm::librpmDb::D
librpmDb internal database handle
Definition: librpmDb.cc:40
zypp::target::rpm::librpmDb::D::_root
const Pathname _root
Definition: librpmDb.cc:45
zypp::target::rpm::librpmDb::D::_ts
rpmts _ts
Definition: librpmDb.cc:47
zypp::target::rpm::librpmDb::D::operator=
D & operator=(const D &)
zypp::target::rpm::librpmDb::D::D
D(const Pathname &root_r, const Pathname &dbPath_r, bool readonly_r)
Definition: librpmDb.cc:56
zypp::target::rpm::librpmDb::D::_dbPath
const Pathname _dbPath
Definition: librpmDb.cc:46
zypp::target::rpm::librpmDb::D::operator<<
friend std::ostream & operator<<(std::ostream &str, const D &obj)
Definition: librpmDb.cc:50
zypp::target::rpm::librpmDb::D::D
D(const D &)
zypp::target::rpm::librpmDb::D::~D
~D()
Definition: librpmDb.cc:82
zypp::target::rpm::librpmDb::D::_error
shared_ptr< RpmException > _error
Definition: librpmDb.cc:48
zypp::target::rpm::librpmDb::db_const_iterator::D
Definition: librpmDb.cc:487
zypp::target::rpm::librpmDb::db_const_iterator::D::D
D(const D &)
zypp::target::rpm::librpmDb::db_const_iterator::D::_mi
rpmdbMatchIterator _mi
Definition: librpmDb.cc:496
zypp::target::rpm::librpmDb::db_const_iterator::D::create
bool create(int rpmtag, const void *keyp=NULL, size_t keylen=0)
Let iterator access a dbindex file.
Definition: librpmDb.cc:535
zypp::target::rpm::librpmDb::db_const_iterator::D::_hptr
RpmHeader::constPtr _hptr
Definition: librpmDb.cc:495
zypp::target::rpm::librpmDb::db_const_iterator::D::destroy
bool destroy()
Destroy iterator.
Definition: librpmDb.cc:548
zypp::target::rpm::librpmDb::db_const_iterator::D::operator=
D & operator=(const D &)
zypp::target::rpm::librpmDb::db_const_iterator::D::_dbptr
librpmDb::constPtr _dbptr
Definition: librpmDb.cc:492
zypp::target::rpm::librpmDb::db_const_iterator::D::_dberr
shared_ptr< RpmException > _dberr
Definition: librpmDb.cc:493
zypp::target::rpm::librpmDb::db_const_iterator::D::set
bool set(int off_r)
Create an itertator that contains the database entry located at off_r, and advance to the 1st header.
Definition: librpmDb.cc:596
zypp::target::rpm::librpmDb::db_const_iterator::D::~D
~D()
Definition: librpmDb.cc:523
zypp::target::rpm::librpmDb::db_const_iterator::D::init
bool init(int rpmtag, const void *keyp=NULL, size_t keylen=0)
Access a dbindex file and advance to the 1st header.
Definition: librpmDb.cc:585
zypp::target::rpm::librpmDb::db_const_iterator::D::size
int size()
Definition: librpmDb.cc:613
zypp::target::rpm::librpmDb::db_const_iterator::D::offset
unsigned offset()
Definition: librpmDb.cc:608
zypp::target::rpm::librpmDb::db_const_iterator::D::advance
bool advance()
Advance to the first/next header in iterator.
Definition: librpmDb.cc:568
zypp::target::rpm::librpmDb::db_const_iterator::D::D
D(librpmDb::constPtr dbptr_r)
Definition: librpmDb.cc:498
zypp::target::rpm::librpmDb::db_const_iterator
Subclass to retrieve database content.
Definition: librpmDb.h:337
zypp::target::rpm::librpmDb::db_const_iterator::dbHdrNum
unsigned dbHdrNum() const
Returns the current headers index in database, 0 if no header.
Definition: librpmDb.cc:670
zypp::target::rpm::librpmDb::db_const_iterator::findByProvides
bool findByProvides(const std::string &tag_r)
Reset to iterate all packages that provide a certain tag.
Definition: librpmDb.cc:743
zypp::target::rpm::librpmDb::db_const_iterator::findByName
bool findByName(const std::string &name_r)
Reset to iterate all packages with a certain name.
Definition: librpmDb.cc:776
zypp::target::rpm::librpmDb::db_const_iterator::~db_const_iterator
~db_const_iterator()
Destructor.
Definition: librpmDb.cc:648
zypp::target::rpm::librpmDb::db_const_iterator::findByFile
bool findByFile(const std::string &file_r)
Reset to iterate all packages that own a certain file.
Definition: librpmDb.cc:732
zypp::target::rpm::librpmDb::db_const_iterator::findAll
bool findAll()
Reset to iterate all packages.
Definition: librpmDb.cc:721
zypp::target::rpm::librpmDb::db_const_iterator::operator*
const RpmHeader::constPtr & operator*() const
Returns the current RpmHeader::constPtr or NULL, if no more entries available.
Definition: librpmDb.cc:681
zypp::target::rpm::librpmDb::db_const_iterator::findByRequiredBy
bool findByRequiredBy(const std::string &tag_r)
Reset to iterate all packages that require a certain tag.
Definition: librpmDb.cc:754
zypp::target::rpm::librpmDb::db_const_iterator::findPackage
bool findPackage(const std::string &name_r)
Find package by name.
Definition: librpmDb.cc:787
zypp::target::rpm::librpmDb::db_const_iterator::dbError
shared_ptr< RpmException > dbError() const
Return any database error.
Definition: librpmDb.cc:692
zypp::target::rpm::librpmDb::db_const_iterator::operator++
void operator++()
Advance to next RpmHeader::constPtr.
Definition: librpmDb.cc:659
zypp::target::rpm::librpmDb::db_const_iterator::findByConflicts
bool findByConflicts(const std::string &tag_r)
Reset to iterate all packages that conflict with a certain tag.
Definition: librpmDb.cc:765
zypp::target::rpm::librpmDb::db_const_iterator::db_const_iterator
db_const_iterator(const db_const_iterator &)
zypp::target::rpm::librpmDb::db_const_iterator::_d
D & _d
Definition: librpmDb.h:348
zypp::target::rpm::librpmDb
Manage access to librpm database.
Definition: librpmDb.h:39
zypp::target::rpm::librpmDb::_dbBlocked
static bool _dbBlocked
Whether access is blocked (no _defaultDb will be available).
Definition: librpmDb.h:88
zypp::target::rpm::librpmDb::unref_to
virtual void unref_to(unsigned refCount_r) const
Trigger from Rep, after refCount was decreased.
Definition: librpmDb.cc:385
zypp::target::rpm::librpmDb::dbPath
const Pathname & dbPath() const
Definition: librpmDb.cc:410
zypp::target::rpm::librpmDb::root
const Pathname & root() const
Definition: librpmDb.cc:399
zypp::target::rpm::librpmDb::empty
bool empty() const
Definition: librpmDb.cc:432
zypp::target::rpm::librpmDb::valid
bool valid() const
Definition: librpmDb.h:298
zypp::target::rpm::librpmDb::globalInit
static bool globalInit()
Initialize lib librpm (read configfiles etc.).
Definition: librpmDb.cc:111
zypp::target::rpm::librpmDb::dumpOn
virtual std::ostream & dumpOn(std::ostream &str) const
Dump debug info.
Definition: librpmDb.cc:474
zypp::target::rpm::librpmDb::constPtr
intrusive_ptr< const librpmDb > constPtr
Definition: librpmDb.h:42
zypp::target::rpm::librpmDb::size
unsigned size() const
Definition: librpmDb.cc:443
zypp::target::rpm::librpmDb::stringPath
static std::string stringPath(const Pathname &root_r, const Pathname &sub_r)
Definition: librpmDb.h:131
zypp::target::rpm::librpmDb::dbRelease
static unsigned dbRelease(bool force_r=false)
If there are no outstanding references to the database (e.g.
Definition: librpmDb.cc:277
zypp::target::rpm::librpmDb::dumpState
static std::ostream & dumpState(std::ostream &str)
Dump debug info.
Definition: librpmDb.cc:339
zypp::target::rpm::librpmDb::_defaultDb
static librpmDb::constPtr _defaultDb
Current rpmdb handle.
Definition: librpmDb.h:83
zypp::target::rpm::librpmDb::error
shared_ptr< RpmException > error() const
Return any database error.
Definition: librpmDb.cc:421
zypp::target::rpm::librpmDb::_d
D & _d
Definition: librpmDb.h:256
zypp::target::rpm::librpmDb::_rpmDefaultDbPath
static Pathname _rpmDefaultDbPath
_dbpath configured in rpm config.
Definition: librpmDb.h:78
zypp::target::rpm::librpmDb::_defaultDbPath
static Pathname _defaultDbPath
Current directory (below root) that contains the rpmdb.
Definition: librpmDb.h:73
zypp::target::rpm::librpmDb::newLibrpmDb
static librpmDb * newLibrpmDb()
For internal use.
Definition: librpmDb.cc:162
zypp::target::rpm::librpmDb::~librpmDb
virtual ~librpmDb()
Destructor.
Definition: librpmDb.cc:374
zypp::target::rpm::librpmDb::dont_call_it
void * dont_call_it() const
Dont call it ;) It's for development and testing only.
Definition: librpmDb.cc:461
zypp::target::rpm::librpmDb::_defaultRoot
static Pathname _defaultRoot
Current root directory for all operations.
Definition: librpmDb.h:68
zypp::target::rpm::librpmDb::expand
static std::string expand(const std::string &macro_r)
Definition: librpmDb.cc:142
zypp::target::rpm::librpmDb::librpmDb
librpmDb(const Pathname &root_r, const Pathname &dbPath_r, bool readonly_r)
Private constructor! librpmDb objects are to be created via static interface only.
Definition: librpmDb.cc:362
zypp::target::rpm::librpmDb::dbAccess
static void dbAccess()
Access the database at the current default location.
Definition: librpmDb.cc:244
zypp::target::rpm::librpmDb::blockAccess
static unsigned blockAccess()
Blocks further access to rpmdb.
Definition: librpmDb.cc:314
zypp::target::rpm::librpmDb::suggestedDbPath
static Pathname suggestedDbPath(const Pathname &root_r)
Definition: librpmDb.cc:190
zypp::target::rpm::librpmDb::unblockAccess
static void unblockAccess()
Allow access to rpmdb e.g.
Definition: librpmDb.cc:327
librpmDb.h
librpm.h
std::dumpOn
std::ostream & dumpOn(std::ostream &str, const zypp::shared_ptr< void > &obj)
Definition: PtrTypes.h:151
str
String related utilities and Regular expression matching.
zypp
Easy-to use interface to the ZYPP dependency resolver.
Definition: CodePitfalls.doc:2