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git.saurik.com Git - apt.git/blob - apt-pkg/acquire-item.h
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1 // -*- mode: cpp; mode: fold -*-
3 // $Id: acquire-item.h,v 1.23 2000/01/17 07:11:49 jgg Exp $
4 /* ######################################################################
6 Acquire Item - Item to acquire
8 When an item is instantiated it will add it self to the local list in
9 the Owner Acquire class. Derived classes will then call QueueURI to
10 register all the URI's they wish to fetch at the initial moment.
12 Two item classes are provided to provide functionality for downloading
13 of Index files and downloading of Packages.
15 A Archive class is provided for downloading .deb files. It does Md5
16 checking and source location as well as a retry algorithm.
18 ##################################################################### */
20 #ifndef PKGLIB_ACQUIRE_ITEM_H
21 #define PKGLIB_ACQUIRE_ITEM_H
23 #include <apt-pkg/acquire.h>
24 #include <apt-pkg/sourcelist.h>
25 #include <apt-pkg/pkgrecords.h>
28 #pragma interface "apt-pkg/acquire-item.h"
32 class pkgAcquire::Item
36 // Some private helper methods for registering URIs
38 inline void QueueURI(ItemDesc
&Item
)
39 {Owner
->Enqueue(Item
);};
40 inline void Dequeue() {Owner
->Dequeue(this);};
42 // Safe rename function with timestamp preservation
43 void Rename(string From
,string To
);
48 enum {StatIdle
, StatFetching
, StatDone
, StatError
} Status
;
50 unsigned long FileSize
;
51 unsigned long PartialSize
;
57 // Number of queues we are inserted into
58 unsigned int QueueCounter
;
60 // File to write the fetch into
63 // Action members invoked by the worker
64 virtual void Failed(string Message
,pkgAcquire::MethodConfig
*Cnf
);
65 virtual void Done(string Message
,unsigned long Size
,string Md5Hash
,
66 pkgAcquire::MethodConfig
*Cnf
);
67 virtual void Start(string Message
,unsigned long Size
);
68 virtual string
Custom600Headers() {return string();};
69 virtual string
DescURI() = 0;
70 virtual void Finished() {};
73 virtual string
MD5Sum() {return string();};
75 Item(pkgAcquire
*Owner
);
79 // Item class for index files
80 class pkgAcqIndex
: public pkgAcquire::Item
84 const pkgSourceList::Item
*Location
;
87 pkgAcquire::ItemDesc Desc
;
91 // Specialized action members
92 virtual void Done(string Message
,unsigned long Size
,string Md5Hash
,
93 pkgAcquire::MethodConfig
*Cnf
);
94 virtual string
Custom600Headers();
95 virtual string
DescURI() {return Location
->PackagesURI();};
97 pkgAcqIndex(pkgAcquire
*Owner
,const pkgSourceList::Item
*Location
);
100 // Item class for index files
101 class pkgAcqIndexRel
: public pkgAcquire::Item
105 const pkgSourceList::Item
*Location
;
106 pkgAcquire::ItemDesc Desc
;
110 // Specialized action members
111 virtual void Failed(string Message
,pkgAcquire::MethodConfig
*Cnf
);
112 virtual void Done(string Message
,unsigned long Size
,string Md5Hash
,
113 pkgAcquire::MethodConfig
*Cnf
);
114 virtual string
Custom600Headers();
115 virtual string
DescURI() {return Location
->ReleaseURI();};
117 pkgAcqIndexRel(pkgAcquire
*Owner
,const pkgSourceList::Item
*Location
);
120 // Item class for archive files
121 class pkgAcqArchive
: public pkgAcquire::Item
125 // State information for the retry mechanism
126 pkgCache::VerIterator Version
;
127 pkgAcquire::ItemDesc Desc
;
128 pkgSourceList
*Sources
;
131 string
&StoreFilename
;
132 pkgCache::VerFileIterator Vf
;
133 unsigned int Retries
;
135 // Queue the next available file for download.
140 // Specialized action members
141 virtual void Failed(string Message
,pkgAcquire::MethodConfig
*Cnf
);
142 virtual void Done(string Message
,unsigned long Size
,string Md5Hash
,
143 pkgAcquire::MethodConfig
*Cnf
);
144 virtual string
MD5Sum() {return MD5
;};
145 virtual string
DescURI() {return Desc
.URI
;};
146 virtual void Finished();
148 pkgAcqArchive(pkgAcquire
*Owner
,pkgSourceList
*Sources
,
149 pkgRecords
*Recs
,pkgCache::VerIterator
const &Version
,
150 string
&StoreFilename
);
153 // Fetch a generic file to the current directory
154 class pkgAcqFile
: public pkgAcquire::Item
156 pkgAcquire::ItemDesc Desc
;
158 unsigned int Retries
;
162 // Specialized action members
163 virtual void Failed(string Message
,pkgAcquire::MethodConfig
*Cnf
);
164 virtual void Done(string Message
,unsigned long Size
,string Md5Hash
,
165 pkgAcquire::MethodConfig
*Cnf
);
166 virtual string
MD5Sum() {return Md5Hash
;};
167 virtual string
DescURI() {return Desc
.URI
;};
169 pkgAcqFile(pkgAcquire
*Owner
,string URI
,string MD5
,unsigned long Size
,
170 string Desc
,string ShortDesc
);