winch support
[ntk/apt.git] / apt-pkg / pkgrecords.cc
... / ...
CommitLineData
1// -*- mode: cpp; mode: fold -*-
2// Description /*{{{*/
3// $Id: pkgrecords.cc,v 1.3 1998/10/20 02:39:23 jgg Exp $
4/* ######################################################################
5
6 Package Records - Allows access to complete package description records
7 directly from the file.
8
9 ##################################################################### */
10 /*}}}*/
11// Include Files /*{{{*/
12#ifdef __GNUG__
13#pragma implementation "apt-pkg/pkgrecords.h"
14#endif
15#include <apt-pkg/pkgrecords.h>
16#include <apt-pkg/debrecords.h>
17#include <apt-pkg/error.h>
18#include <apt-pkg/configuration.h>
19 /*}}}*/
20
21// Records::pkgRecords - Constructor /*{{{*/
22// ---------------------------------------------------------------------
23/* This will create the necessary structures to access the status files */
24pkgRecords::pkgRecords(pkgCache &Cache) : Cache(Cache), Files(0)
25{
26 string ListDir = _config->FindFile("Dir::State::lists");
27
28 Files = new PkgFile[Cache.HeaderP->PackageFileCount];
29 for (pkgCache::PkgFileIterator I = Cache.FileBegin();
30 I.end() == false; I++)
31 {
32 // We can not initialize if the cache is out of sync.
33 if (I.IsOk() == false)
34 {
35 _error->Error("Package file %s is out of sync.",I.FileName());
36 return;
37 }
38
39 // Create the file
40 Files[I->ID].File = new FileFd(ListDir + I.FileName(),FileFd::ReadOnly);
41 if (_error->PendingError() == true)
42 return;
43
44 // Create the parser
45 Files[I->ID].Parse = new debRecordParser(*Files[I->ID].File);
46 if (_error->PendingError() == true)
47 return;
48 }
49}
50 /*}}}*/
51// Records::~pkgRecords - Destructor /*{{{*/
52// ---------------------------------------------------------------------
53/* */
54pkgRecords::~pkgRecords()
55{
56 delete [] Files;
57}
58 /*}}}*/
59// Records::Lookup - Get a parser for the package version file /*{{{*/
60// ---------------------------------------------------------------------
61/* */
62pkgRecords::Parser &pkgRecords::Lookup(pkgCache::VerFileIterator &Ver)
63{
64 PkgFile &File = Files[Ver.File()->ID];
65 File.Parse->Jump(Ver);
66
67 return *File.Parse;
68}
69 /*}}}*/
70// Records::Pkgfile::~PkgFile - Destructor /*{{{*/
71// ---------------------------------------------------------------------
72/* */
73pkgRecords::PkgFile::~PkgFile()
74{
75 delete Parse;
76 delete File;
77}
78 /*}}}*/